Nils Kåre Birkeland
Position
Assistant Professor
Affiliation
- nils.birkeland@uib.no
- Phone number
- +47 55582657
- 90066529
- Visitor address
-
Thormøhlens gate 53 A/B
5006 Bergen - Room: 2H07
- Postal address
-
P.O. Box 7803NO-5020 BergenNorway
Nils Kåre Birkeland
Position
Assistant Professor
Affiliation
Research
My interests include environmental and molecular microbiology, and evolution and adaptations of prokaryotes. Current research activities involve thermophilic bacteria and archaea, metagenomics in extreme environments, extremophilic methane oxidition, and enteropathogenic bacteria in tropical fresh-waters. Present work aims at (1) identifying molecular adaptations to extreme temperatures using extremophilic microorganisms from a variety of environments, (2) enhance our understanding of the enourmous natural microbial diversity in extreme habitats, (3) elucidation of mechanisms and regulation of biological methane oxidation, (4) metagenomics, and (5) to obtain knowledge about the survival and evolution of Shigella-like bacteria.
Teaching
Publications
Academic article
- Leamdum, Chonticha; Phruksaphithak, Nantharat; Niyasom, Chaisit et al. (2025). Enriched anoxic methanotrophic consortium augmentation for mitigating methane emissions in rainfed systems and climate-neutral rice production. (external link)
- Dzhuraeva, Munavvara; Bobodzhanova, Khursheda; Birkeland, Nils Kåre (2024). The metagenomic landscape of a high-altitude geothermal spring in Tajikistan reveals a novel Desulfurococcaceae member, Zestomicrobium tamdykulense gen. nov., sp. nov. (external link)
- Javier Lopez, Ruben; Geliashvili, Natia; Birkeland, Nils Kåre (2024). Comparative genomics of Fervidobacterium: a new phylogenomic landscape of these wide-spread thermophilic anaerobes. (external link)
- Mashzhan, Akzhigit; Kistaubayeva, Aida; Javier Lopez, Ruben et al. (2024). Polycladomyces zharkentensis sp. nov., a novel thermophilic cellulose-and starch-degrading member of the Bacillota from a geothermal aquifer in Kazakhstan. (external link)
- Stroeva, Aleksandra R; Klyukina, Alexandra A; Vidishcheva, Olesya N et al. (2024). Structure of Benthic Microbial Communities in the Northeastern Part of the Barents Sea. (external link)
- Mashzhan, Akzhigit; Kistaubayeva, Aida; Javier Lopez, Ruben et al. (2024). Caldanaerobacter subterraneus subsp. keratinolyticus subsp. nov., a Novel Feather-Degrading Anaerobic Thermophile. (external link)
- Ghevondyan, Diana; Soghomonyan, Tigran; Hovhannisyan, Pargev et al. (2024). Detergent-resistant α-amylase derived from Anoxybacillus karvacharensis K1 and its production based on whey. (external link)
- Ratnadevi, Chandini Murarilal; Erikstad, Helge Andre; Kruse, Thomas et al. (2023). Methylacidiphilum kamchatkense gen. nov., sp. nov., an extremely acidophilic and moderately thermophilic methanotroph belonging to the phylum Verrucomicrobiota. (external link)
- Khaonuan, Sireethorn; Jariyaboon, Rattana; Usmanbaha, Nikannapas et al. (2023). Potential of butanol production from Thailand marine macroalgae using Clostridium beijerinckii ATCC 10132-based ABE fermentation. (external link)
- Dzhuraeva, Munavvara; Bobodzhanova, Khursheda; Javier Lopez, Ruben et al. (2023). Draft Genome Sequence of Agrobacterium radiobacter Strain MD22b, Isolated from a Grape Plant in Tajikistan. (external link)
- Javier Lopez, Ruben; Mandolini, Edoardo; Dzhuraeva, Munavvara et al. (2022). Fervidobacterium pennivorans subsp. keratinolyticus subsp. nov., a Novel Feather-Degrading Anaerobic Thermophile. (external link)
- Chaikitkaew, Srisuda; In-Chan, Supattra; Singkhala, Apinya et al. (2022). Clostridium thailandense sp. nov., a novel CO2-reducing acetogenic bacterium isolated from peatland soil. (external link)
- Chowdhury, Fatema Moni; Ahsan, Chowdhury Rafiqul; Birkeland, Nils Kåre (2021). Oral immunization of Escherichia albertii strain DM104 induces protective immunity against Shigella dysenteriae type 4 in mouse model. (external link)
- Boteva, Nikoleta; Birkeland, Nils Kåre; Kambourova, Margarita (2021). Metagenome-assembled genomes related to ammonia-oxidizing Thaumarchaeota recovered from near-anoxic environment. (external link)
- Mashzhan, Akzhigit; Javier-Lopez, Ruben; Kistaubayeva, Aida et al. (2021). Metagenomics and Culture-Based Diversity Analysis of the Bacterial Community in the Zharkent Geothermal Spring in Kazakhstan. (external link)
- Boteva, Nikoleta; Birkeland, Nils Kåre; Kambourova, Margarita (2021). Complete nitrogen cycle driven by the thermophilic microbial community of Rupi II hot spring. (external link)
- Birkeland, Nils Kåre; Bunk, Boyke; Spröer, Cathrin et al. (2021). Thermococcus bergensis sp. nov., a Novel Hyperthermophilic Starch-Degrading Archaeon. (external link)
- Chaikitkaew, Srisuda; Seengenyoung, Jiravut; Mamimin, Chonticha et al. (2021). Simultaneous biogas upgrading and acetic acid production by homoacetogens consortium enriched from peatland soil. (external link)
- Jiang, Hongchen; Huang, Jianrong; Li, Li et al. (2021). Onshore soil microbes and endophytes respond differently to geochemical and mineralogical changes in the Aral Sea. (external link)
- Panosyan, Hovik; Margaryan, Armine; Birkeland, Nils-Kåre (2021). Anoxybacillus karvacharensis sp. nov., a novel thermophilic bacterium isolated from the Karvachar geothermal spring in Nagorno-Karabakh. (external link)
- Saghatelyan, Ani; Panosyan, Hovik; Trchounian, Armen et al. (2021). Characteristics of DNA polymerase I from an extreme thermophile, Thermus scotoductus strain K1. (external link)
- Panosyan, Hovik; Margaryan, Armine; Birkeland, Nils-Kåre (2020). Geothermal springs in Armenia and Nagorno-Karabakh: potential sources of hydrolase-producing thermophilic bacilli. (external link)
- Islam, Tajul; Larsen, Øivind; Birkeland, Nils-Kåre (2020). A novel cold-adapted Methylovulum species, with a high C16:1ω5c content, isolated from an arctic thermal spring in spitsbergen. (external link)
- Shurigin, Vyacheslav; Egamberdieva, Dilfuza; Li, Li et al. (2020). Endophytic bacteria associated with halophyte Seidlitzia rosmarinus Ehrenb. ex Boiss. from saline soil of Uzbekistan and their plant beneficial traits. (external link)
- Dzhuraeva, Munavvara; Shokirova, Mehrangez; Azaryan, Ani et al. (2020). Draft Genome Sequence of Escherichia coli Strain Tj, Isolated from the Varzob River in Tajikistan. (external link)
- Margaryan, Armine; Panosyan, Hovik; Mamimin, Chonticha et al. (2019). Insights into the Bacterial Diversity of the Acidic Akhtala Mine Tailing in Armenia Using Molecular Approaches. (external link)
- Hansen, Thomas Kruse; Murarilal Ratnadevi, Chandini; Erikstad, Helge Andre et al. (2019). Complete genome sequence analysis of the thermoacidophilic verrucomicrobial methanotroph “Candidatus Methylacidiphilum kamchatkense” strain Kam1 and comparison with its closest relatives. (external link)
- Erikstad, Helge Andre; Ceballos, Ruben Michael; Smestad, Natalie Bennett et al. (2019). Global Biogeographic Distribution Patterns of Thermoacidophilic Verrucomicrobia Methanotrophs Suggest Allopatric Evolution. (external link)
- Azmuda, Nafisa; Fakruddin, Md.; Khan, Sirajul Islam et al. (2019). Bacterial Community Profiling of Tropical Freshwaters in Bangladesh. (external link)
- Shurigin, Vyacheslav; Hakobyan, Anna; Panosyan, Hovik et al. (2019). A glimpse of the prokaryotic diversity of the Large Aral Sea reveals novel extremophilic bacterial and archaeal groups. (external link)
- Panosyan, Hovik; Hakobyan, Anna; Birkeland, Nils-Kåre et al. (2018). Bacilli community of saline–alkaline soils from the Ararat Plain (Armenia) assessed by molecular and culture-based methods. (external link)
- Chowdhury, Fatema Moni; Rahman, Mohammed Ziaur; Sarkar, Md Murshed Hasan et al. (2017). Protection against shigellosis caused by shigella dysenteriae serotype 4 in Guinea pigs using escherichia albertii dm104 as a live vaccine candidate strain. (external link)
- Antranikian, Garabed; Suleiman, Marcel; Schäfers, Christian et al. (2017). Diversity of bacteria and archaea from two shallow marine hydrothermal vents from Vulcano Island. (external link)
- Birkeland, Nils-Kåre; Schoenheit, Peter; Poghosyan, Lianna et al. (2017). Complete genome sequence analysis of Archaeoglobus fulgidus strain 7324 (DSM 8774), a hyperthermophilic archaeal sulfate reducer from a North Sea oil field. (external link)
- Islam, Tajul; Torsvik, Vigdis Lid; Larsen, Øivind et al. (2016). Acid-tolerant moderately thermophilic methanotrophs of the class Gammaproteobacteria isolated from tropical topsoil with methane seeps. (external link)
- Nesbø, Camilla Lothe; Swithers, Kirsten S.; Dahle, Håkon et al. (2015). Evidence for extensive gene flow and Thermotoga subpopulations in subsurface and marine environments. (external link)
- Islam, Tajul; Larsen, Øivind; Torsvik, Vigdis Lid et al. (2015). Novel Methanotrophs of the Family Methylococcaceae from Different Geographical Regions and Habitats. (external link)
- Chowdhury, Fatema Moni; Rahman, Mohammed Ziaur; Khan, Sirajul Islam et al. (2014). An Environmental escherichia albertii strain, dm104, induces protective immunity to shigella dysenteriae in guinea pig eye model. (external link)
- Panosyan, Hovik; Birkeland, Nils-Kåre (2014). Microbial diversity in an Armenian geothermal spring assessed by molecular and culture-based methods. (external link)
- Nitipan, Supachai; Mamimin, Chonticha; Intrasungkha, Nugul et al. (2014). Microbial community analysis of thermophilic mixed culture sludge for biohydrogen production from palm oil mill effluent. (external link)
- Ogino, Hiromi; Ishino, Sonoko; Haugland, Gyri Teien et al. (2014). Activation of the MCM helicase from the thermophilic archaeon, Thermoplasma acidophilum by interactions with GINS and Cdc6-2. (external link)
- Makhalanyane, Thulani P.; Valverde, Angel; Birkeland, Nils-Kåre et al. (2013). Evidence for successional development in Antarctic hypolithic bacterial communities. (external link)
- Akter, Selina; Islam, Mohammad Sirajul; Afreen, Kazi Sabrina et al. (2013). Prevalence and distribution of different diarrhoeagenic Escherichia coli virulotypes in major water bodies in Bangladesh. (external link)
- Schouw, Anders; Sinada, Faisal; Birkeland, Nils-Kåre (2013). Thermoanaerobacter spp. recovered from hot produced water from the Thar Jath oil-field in South Sudan. (external link)
- Margaryan, Armine A.; Panosyan, Hovik H.; Birkeland, Nils-Kåre et al. (2013). Heavy metal accumulation and the expression of the copA and nikA genes in Bacillus subtilis AG4 isolated from the Sotk gold mine in Armenia. (external link)
- Rahman, Mohammed Ziaur; Akter, Selina; Azmuda, Nafisa et al. (2013). Serological cross-reaction between O-antigens of Shigella dysenteriae type 4 and an environmental Escherichia albertii isolate. (external link)
- Erikstad, Helge Andre; Jensen, Sigmund; Keen, Thomas Jeffrey et al. (2012). Differential expression of particulate methane monooxygenase genes in the verrucomicrobial methanotroph 'Methylacidiphilum kamchatkense' Kam1. (external link)
- Azmuda, Nafisa; Rahman, Mohammed Ziaur; Sultana, Munawar et al. (2012). Evidence of interspecies O antigen gene cluster transfer between Shigella boydii 15 and Escherichia fergusonii. (external link)
- Azmuda, Nafisa; Rahman, Mohammed Ziaur; Madsen, Marit Steine et al. (2012). Prevalence of a novel division-level bacterial lineage in Lake Dhanmondi, Dhaka, Bangladesh, as revealed by deep sequencing of 16S rRNA gene amplicons. (external link)
- Rahman, Mohammed Ziaur; Azmuda, Nafisa; Hossain, Mohammad Jahangir et al. (2011). Recovery and Characterization of Environmental Variants of Shigella flexneri from Surface Water in Bangladesh. (external link)
- Ogino, Hiroyasu; Ishino, S; Mayanagi, K et al. (2011). The GINS complex from the thermophilic archaeon, Thermoplasma acidophilum may function as a homotetramer in DNA replication. (external link)
- Moen, Marivi; Knævelsrud, Ingeborg; Haugland, Gyri Teien et al. (2011). Uracil-DNA Glycosylase of Thermoplasma acidophilum Directs Long-Patch Base Excision Repair, Which Is Promoted by Deoxynucleoside Triphosphates and ATP/ADP, into Short-Patch Repair. (external link)
- Bonny, Tania Sultana; Azmuda, Nafisa; Khan, Sirajul islam et al. (2010). Virulence of environmental Stenotrophomonas maltophila serologically cross-reacting with Shigella-specific antisera. (external link)
- Jahid, Iqbal Kabir; Azad, T.; Rahman, Mohammed Ziaur et al. (2010). Survival study of Eschericia coli O157:H7 in the aquatic system of Bangladesh. (external link)
- Karlström, Mikael; Chiaraluce, Roberta; Giangiacomo, Laura et al. (2010). Thermodynamic and kinetic stability of a large multi-domain enzyme from the hyperthermophile Aeropyrum pernix. (external link)
- Jensen, Sigmund; Duperron, Sebastien; Birkeland, Nils-Kåre et al. (2010). Intracellular Oceanospirillales bacteria inhabit gills of Acesta bivalves. (external link)
- Knævelsrud, Ingeborg; Moen, Marivi; Grøsvik, Kristin et al. (2010). The Hyperthermophilic Euryarchaeon Archaeoglobus fulgidus Repairs Uracil by Single-Nucleotide Replacement. (external link)
- DiPippo, Jonathan L.; Nesbø, Camilla L.; Dahle, Håkon et al. (2009). Kosmotoga olearia gen. nov., sp nov., a thermophilic, anaerobic heterotroph isolated from an oil production fluid. (external link)
- Nesbø, Camilla L.; Bapteste, Eric; Curtis, Bruce et al. (2009). The Genome of Thermosipho africanus TCF52B: Lateral Genetic Connections to the Firmicutes and Archaea. (external link)
- Haugland, Gyri Teien; Rollor, Claire R.; Birkeland, Nils-Kåre et al. (2009). Biochemical characterization of the minichromosome maintenance protein from the archaeon Thermoplasma acidophilum. (external link)
- Albers, Sonja-Verena ; Birkeland, Nils-Kåre; Driessen, Arnold J. M. et al. (2009). SulfoSYS (Sulfolobus Systems Biology): towards a silicon cell model for the central carbohydrate metabolism of the archaeon Sulfolobus solfataricus under temperature variation. (external link)
- O-Thong, Sompong; Prasertsan, Poonsuk; Birkeland, Nils-Kåre (2009). Evaluation of methods for preparing hydrogen-producing seed inocula under thermophilic condition by process performance and microbial community analysis. (external link)
- Albers, Sonja-Verena; Birkeland, Nils-Kåre; Driessen, Arnold J.M. et al. (2009). SulfoSYS (Sulfolobus Systems Biology): towards a silicon cell model for the central carbohydrate metabolism of the archaeon Sulfolobus solfataricus under temperature variation. (external link)
- Prasertsan, Poonsuk ; O-Thong, Sompong; Birkeland, Nils-Kåre (2009). Optimization and microbial community analysis for production of biohydrogen from palm oil mill effluent by thermophilic fermentative process. (external link)
- Towhid, S.T.; Akhter, Humaira; Azmuda, N. et al. (2009). Comparison of Cultural and Molecular Characteristics of Escherichia coli isolated from Freshwater of Bangladesh. (external link)
- Akhter, Humaira; Fakruddin, M.; Badruddoza, A.H.M. et al. (2009). Prevalence of antimicrobial resistant bacteria cultured from cattle feces and surface water. (external link)
- Jensen, Sigmund; Neufeld, Josh D.; Birkeland, Nils-Kåre et al. (2008). Insight into the microbial community structure of a Norwegian deep-water coral reef environment. (external link)
- Perevalova, Anna A.; Kolganova, Tatyana V.; Birkeland, Nils-Kåre et al. (2008). Distribution of Crenarchaeota Representatives in Terrestrial Hot Springs of Russia and Iceland. (external link)
- Haugland, Gyri Teien; Sakakibara, N; Pey, Angel et al. (2008). Thermoplasma acidophilum Cdc6 protein stimulates MCM helicase activity by regulating its ATPase activity. (external link)
- Haugland, Gyri Teien; Innselset, M; Madern, Dominique et al. (2008). Characterization of the Cdc6 Homologues from the Euryarchaeon Thermoplasma acidophilum. (external link)
- Dahle, Håkon; Garshol, Frøydis Kristi; Madsen, Marit Steine et al. (2008). Microbial community structure analysis of produced water from a high-temperature North Sea oil-field. (external link)
- Jensen, Sigmund; Neufeld, Josh d; Birkeland, Nils-Kåre et al. (2008). Methane assimilation and trophic interactions with marine Methylomicrobium in deep-water coral reef sediment off the coast of Norway. (external link)
- Miroshnichenko, Margarita L.; Kublanov, Ilya V.; Kostrikina, Nadezhda A. et al. (2008). Caldicellulosiruptor kronotskyensis sp nov and Caldicellulosiruptor hydrothermalis sp nov., two extremely thermophilic, cellulolytic, anaerobic bacteria from Kamchatka thermal springs. (external link)
- O-Thong, Sompong; Prasertsan, Poonsuk ; Intrasungkha, Nugul et al. (2008). Optimization of simultaneous thermophilic fermentative hydrogen production and COD reduction from palm oil mill effluent by Thermoanaerobacterium-rich sludge. (external link)
- Islam, Tajul; Jensen, Sigmund; Reigstad, Laila Johanne et al. (2008). Methane oxidation at 55 degrees C and pH 2 by a thermoacidophilic bacterium belonging to the Verrucomicrobia phylum. (external link)
- Stokke, Runar; Birkeland, Nils-Kåre; Steen, Ida Helene (2007). Thermal stability and biochemical properties of isocitrate dehydrogenase from the thermoacidophilic archaeon Thermoplasma acidophilum. (external link)
- Rahman, Mohammed Ziaur; Sultana, Munawar; Khan, Sirajul Islam et al. (2007). Serological cross-reactivity of environmental isolates of Enterobacter, Escherichia, Stenotrophomonas, and Aerococcus with Shigella spp.-specific antisera. (external link)
- O-Thong, Sompong; Prasertsan, Poonsuk ; Intrasungkha, Nugul et al. (2007). Improvement of biohydrogen production and treatment etticiency on palm oil mill effluent with nutrient supplementation at thermophilic condition using an anaerobic sequencing batch reactor. (external link)
- Leiros, Ingar; Nabong, Marivi P.; Grøsvik, Kristin et al. (2007). Structural basis for enzymatic excision of N-1-methyladenine and N-3-methylcytosine from DNA. (external link)
- Stokke, R; Leiros, Ingar; Karlström, Mikael et al. (2007). Thermal stability of isocitrate dehydrogenase from Archaeoglobus fulgidus studied by crystal structure analysis and engineering of chimers. (external link)
- Leiros, Ingar; Nabong, MP; Nabong, Marivi et al. (2007). Structural basis for enzymatic excision of N-1-methyladenine and N-3-methylcytosine from DNA. (external link)
- Stokke, Runar; Madern, Dominique; Fedøy, Anita-Elin et al. (2007). Biochemical characterization of isocitrate dehydrogenase from Methylococcus capsulatus reveals a unique NAD(+)-dependent homotetrameric enzyme. (external link)
- Singh, P.; Birkeland, Nils-Kåre; Iyengar, L. et al. (2006). Mineralization of 4-aminobenzenesulfonate (4-ABS) by Agrobacterium sp. strain PNS-1. (external link)
- Karlström, Mikael; Steen, Ida Helene; Madern, Dominique et al. (2006). The crystal structure of a hyperthermostable subfamily II isocitrate dehydrogenase from Thermotoga maritima. (external link)
- Haugland, Gyri Teien; Shin, J.H.; Birkeland, Nils-Kåre et al. (2006). Stimulation of MCM helicase activity by a Cdc6 protein in the archaeon Thermoplasma acidophilum. (external link)
- Dahle, Håkon; Birkeland, Nils-Kåre (2006). Thermovirga lienii gen. nov., sp. nov., a novel moderately thermophilic, anaerobic, amino-acid-degrading bacterium isolated from a North Sea oil well. (external link)
- Slobodkin, Alexander I.; Tourova, Tatyana P.; Kostrikina, Nadezhda A. et al. (2006). Tepidimicrobium ferriphilum gen nov, sp nov, a novel moderately thermophilic, Fe(III)-reducing bacterium of the order Clostridiales. (external link)
- Karlström, Mikael; Stokke, Runar; Steen, Ida Helene et al. (2005). Isocitrate dehydrogenase from the hyperthermophile Aeropyrum pernix: X-ray structure analysis of a ternary enzyme-substrate complex and thermal stability. (external link)
- Yadav, K.K.; Iyengar, L.; Birkeland, Nils-Kåre et al. (2005). Transient accumulation of metabolic intermediates of p-cresol in the culture medium by a Pseudomonas sp strain A isolated from a sewage treatment plant. (external link)
- Khijniak, T.V.; Slobodkin, A.I.; Coker, V. et al. (2005). Reduction of uranium(VI) phosphate during growth of the thermophilic bacterium Thermoterrabacterium ferrireducens. (external link)
- Birkeland, Nils-Kåre (2004). The microbial diversity of deep subsurface oil reservoirs. (external link)
- Ward, Naomi; Larsen, Øivind; Bruseth, Live J. et al. (2004). Genomic insights into methanotrophy: The complete genome sequence of Methylococcus capsulatus (Bath). (external link)
- Irimia, Adriana; Vellieux, Frederic M.D.; Madern, Dominique et al. (2004). The 2.9 Ångström resolution crystal structure of malate dehydrogenase from Archaeoglobus fulgidus: mechanisms of oligomerisation and thermal stabilisation. (external link)
- Steen, Ida Helene; Lien, Torleiv; Madsen, Marit et al. (2002). Identification of cofactor discrimination sites in NAD-isocitrate dehydrogenase from Pyrococcus furiosus. (external link)
- Karlstrøm, Michael; Steen, Ida Helene; Tibbelin, Gudrun et al. (2002). Crystallization and preliminary X-ray structure analysis of isocitrate dehydrogenase from two hyperthermophiles, Aeropyrum pernix and Thermotoga maritima. (external link)
- Maisnier-Patin, Sophie; Malandrin, Laurence; Birkeland, Nils-Kåre et al. (2002). Chromosome replication patterns in the hyperthermophilic euryarchaea Archaeoglobus fulgidus and Methanocaldococcus (Methanococcus) jannaschii. (external link)
- Birkeland, Nils-Kåre; Ånensen, Hilde; Knævelsrud, Ingeborg et al. (2002). Methylpurine DNA glycosylase of the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Birkeland, Nils-Kåre; Ånensen, Hilde; Knævelsrud, Ingeborg et al. (2002). Methylpurine DNA glycosylase of the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Steen, Ida Helene; Madsen, Marit Steine; Birkeland, Nils-Kåre et al. (2002). Identification of cofactor discrimination siten in NAD-isocitrate dehydrogenase from Pyrococcus furious. (external link)
- Steen, Ida Helen; Madern, Dominique; Karlstrøm, Mikael et al. (2001). Comparison of Isocitrate Dehydrogenase from Three Hyperthermophiles Reveals Differences in Thermostability,Cofactor Specificity,Oligomeric State, and Phylogenetic Affiliation. (external link)
- Knævelsrud, Ingeborg; Ruoff, Peter; Ånensen, Hilde et al. (2001). Excision of uracil from DNA by the hyperthermophilic Afung protein is dependent on the opposite base and stimulated by heat-induced transition to a more open structure. (external link)
- Larsen, Øyvind; Lien, Torleiv; Birkeland, Nils-Kåre (2001). A novel organization of the dissimilatory sulfite reductase operon of Thermodesulforhabdus norvegica verified by RT-PCR. (external link)
- Madern, Dominique; Ebel, C.; Dale, Hege Avsnes et al. (2001). Differences in Oligomeric States of the (LDH-like)L-MalDH from the Hyperthermophilic Archaea Methanococcus jannaschii and Archaeoglobus fulgidus. (external link)
- Steen, Ida Helene; Madern, Dominique; Karlstrøm, Mikael et al. (2001). Comparison of isocitrate dehydrogenase from three different hyperthermophiles reveals differences in thermostability, cofactor specificity, oligomeric state and phylogenetic affiliation. (external link)
- Steen, Ida Helene; Hvoslef, Hilde; Birkeland, Nils-Kåre et al. (2001). Archaeoglobus fulgidus isocitrate dehydrogenase, malate dehydrogenase and glutamate dehydrogenase. (external link)
- Madern, Dominique; Ebel, C.; Dale, Hege Avsnes et al. (2001). Differences in the oligomeric state of the LDH-like L-MalDH from the hyperthermophilic archaea Methanococcus jannaschii and Archaeoglobus fulgidus. (external link)
- Larsen, Øyvind; Lien, Torleiv; Birkeland, Nils-Kåre (2000). Characterization of the desulforubidin operons from Desulfobacter vibrioformis and Desulfobulbus rhabdoformis. (external link)
- Larsen, Øivind; Lien, Torleiv; Birkeland, Nils-Kåre (1999). Dissimilatory sulfite reductase from <I>Archaeoglobus profundus</I> and <I>Desulfotomaculum thermocisternum</I>: phylogenetic and structural implications from gene sequences. (external link)
- Lien, Torleiv; Madsen, Marit Steine; Rainey, Fred A. et al. (1998). Petrotoga mobilis sp. nov., from a North Sea oil-production well. (external link)
- Lien, Torleiv; Madsen, Marit Steine; Birkeland, Nils-Kåre et al. (1998). Petrotoga mobilis sp. nov., from a North Sea oil-production well. (external link)
- Emmerhoff, Oddmund Johan; Klenk, Hans-Petter; Birkeland, Nils-Kåre (1998). Characterization and sequence comparison of temperature-regulated chaperonins from the hyperthermophilic archaeon <I>Archaeoglobus fulgidus</I>. (external link)
- Steen, Ida Helene; Madsen, Marit Steine; Birkeland, Nils-Kåre et al. (1998). Purification and characterization of a monomeric isocitrate dehydrogenase from the sulfate-reducing bacterium Desulfobacter vibrioformis and demonstration of the presence of a monomeric enzyme in other bacteria. (external link)
- Steen, Ida Helene; Madsen, Marit Steine; Birkeland, Nils Kåre et al. (1998). Corrigendum to `Purification and characterization of a monomeric isocitrate dehydrogenase from the sulfate-reducing bacterium Desulfobacter vibrioformis and demonstration of the presence of a monomeric enzyme in other bacteria': [FEMS Microbiol. Lett. 160 (1998) 75–79]. (external link)
- Aalen, Nina; Steen, Ida Helene; Birkeland, Nils-Kåre et al. (1997). Purification and properties of an extremely thermostable NADP-specific glutamate dehydrogenase from Archaeoglobus fulgidus. (external link)
- Langelandsvik, Anne Siri; Steen, Ida Helene; Birkeland, Nils-Kåre et al. (1997). Properties and primary structure of a thermostable L-malate dehydrogenase from Archaeoglobus fulgidus. (external link)
- Steen, Ida Helene; Lien, Torleiv; Birkeland, Nils-Kåre (1997). Biochemical and phylogenetic characterization of isocitrate dehydrogenase from a hyperthermophilic archaeon, Archaeoglobus fulgidus. (external link)
- Lillehaug, Dag; Nes, Ingolf; Birkeland, Nils Kåre (1997). A highly efficient and stable system for site-specific integration of genes and plasmids into the phage φLC3 attachment site (attB) of the Lactococcus lactis chromosome. (external link)
- Birkeland, Nils-Kåre (1994). Cloning, molecular characterization, and expression of the genes encoding the lytic functions of lactococcal bacteriophage phi-LC3: a dual lysis system og modular design. (external link)
- Bjelland, Svein; Birkeland, Nils Kåre; Benneche, Tore et al. (1994). DNA glycosylase activities for thymine residues oxidized in the methyl group are functions of the AlkA enzyme in Escherichia coli.. (external link)
- Lillehaug, Dag; Birkeland, Nils-Kåre (1993). Characterization of Genetic Elements Required for Site-Specific Integration of the Temperate Lactococcal Bacteriophage φLC3 and Construction of Integration-Negative φLC3 Mutants. (external link)
- Birkeland, Nils Kåre; Lønneborg, A-M (1993). The cos region of lactococcal bacteriophage øLC3. (external link)
- Birkeland, Nils Kåre; Holo, Helge (1993). Transduction of a Plasmid Carrying the Cohesive End Region from Lactococcus lactis Bacteriophage ΦLC3. (external link)
- Slettan, Audun; Gebhardt, Kirsti; Kristiansen, Evy et al. (1992). Escherichia coli K-12 and B contain functional bacteriophage P2 ogr genes. (external link)
- Lillehaug, Dag; Lindqvist, Bjørn H; Birkeland, Nils Kåre (1991). Characterization of Phi-LC3, a Lactococcus-lactis subsp cremoris Temperate Bacteriophage with Cohesive Single-Stranded-DNA Ends. (external link)
- Birkeland, Nils Kåre; Lindqvist, Bjørn H; Christie, Gail E (1991). Control of bacteriophage P2 gene expression: analysis of transcription of the ogr gene. (external link)
- Grambow, Namcy J.; Birkeland, Nils Kåre; Anders, Douglas L. et al. (1990). Deletion analysis of a bacteriophage P2 late promoter. (external link)
- Birkeland, Nils Kåre; Christie, Gail E; Lindqvist, Bjørn H (1988). Directed mutagenesis of the bacteriophage P2 ogr gene defines an essential function. (external link)
- Falk, Edvard S; Bygdeman, Solgun M; Birkeland, Nils Kåre et al. (1988). Genotypes and phenotypes of ß-lactamase producing strains of Neisseria gonorrhoeae from African countries. (external link)
- Birkeland, Nils Kåre; Lindqvist, Bjørn H (1986). Coliphage P2 Late Control Gene ogr: DNA Sequence and Product Identification. (external link)
- Birkeland, Nils Kåre; Hofstad, Tor (1985). Oligosaccharides obtained by partial hydrolysis of lipopolysaccharides from Leptotrichia-buccalis. (external link)
- Birkeland, Nils Kåre; Ratkje, Signe Kjelstrup (1985). Active Uptake of Glutamate in Vesicles of Halobacterium salinarium. (external link)
- Birkeland, Nils Kåre; Hofstad, Tor (1982). Chemical-composition, ultrastructure and some serological properties of lipopolysaccharides from Leptotrichia-buccalis. (external link)
- Birkeland, Nils Kåre; Hofstad, Tor (1982). Isolation by gel-filtration and ion-exchange chromatography of a carbohydrate-rich LPS from phenol-water extracts of Leptotrichia-buccalis strain-l11. (external link)
Academic literature review
- Halim, Ronald; Iyer, Ajay; Esteves, Sara M. et al. (2024). Is ‘waste’ an appropriate concept in a sustainable bioeconomy?. (external link)
- Saghatelyan, Ani; Margaryan, Armine; Panosyan, Hovik et al. (2021). Microbial Diversity of Terrestrial Geothermal Springs in Armenia and Nagorno-Karabakh: A Review. (external link)
- Op den Camp, Huub J.M.; Islam, Tajul; Stott, Matthew B. et al. (2009). Environmental, genomic and taxonomic perspectives on methanotrophic Verrucomicrobia. (external link)
Poster
- Birkeland, Nils Kåre; Littlechild, Jennifer A.; Armengaud, Jean et al. (2023). Thermophilic breakdown of keratin-laden biomass waste. (external link)
- Panosyan, Hovik; Margaryan, Armine; Birkeland, Nils Kåre (2023). Karvachar geothermal spring as a source of Anoxybacillus karvacharensis sp. nov.. (external link)
- Durand, Maria Fernanda Goicochea; Pyrkin, Vladislav O.; Merkel, Alexander Y. et al. (2022). Diversity of psychrophilic methanotrophs from the Barents Sea seabed revealed by enrichments and reconstruction of metagenome-assembled genomes. (external link)
- Margaryan, Armine; Ghevondyan, Diana; Panosyan, Hovik et al. (2022). KAVART ACID TAILING AS A SOURCE FOR NEW METAL RESISTANT BACTERIA WITH A HEAVY METAL BIOREMEDIATION POTENTIAL. (external link)
- Javier Lopez, Ruben; Dzhuraeva, Munavvara; Bobodzhanova, Khursheda et al. (2022). Fervidobacterium pennivorans T, a novel feather-degrading anaerobic thermophile. (external link)
- Dzhuraeva, Munavvara; Panosyan, Hovik; Birkeland, Nils Kåre et al. (2021). Newly isolated thermophilic Thermus sp. T84C3 strain from a geothermal spring in Tajikistan. (external link)
- Dzhuraeva, Munavvara; Birkeland, Nils Kåre; Bobodzhanova, Khursheda (2021). Isolation and characterization of anaerobic thermophilic bacteria from the Khodja-Obi-Garm geothermal spring (Tajikistan). (external link)
- Dzhuraeva, Munavvara; Birkeland, Nils Kåre; Ratnadevi, Chandini Murarilal et al. (2021). Keratin-degrading thermophilic anaerobic bacteria from high-altitude geothermal springs in Tajikistan. (external link)
- Murarilal Ratnadevi, Chandini; Kruse, Thomas ; Birkeland, Nils-Kåre (2019). Comprehensive genome profiling of novel thermoacidophilic methanotroph, Methylacidipihilum sp. strain Yel. (external link)
- Garcia-Moyano, Antonio; Berenguer, Jose; Birkeland, Nils-Kåre (2019). Establishing a rapid screening platform for thermozymes: the disulfide isomerase case. (external link)
- Kruse, Thomas ; Erikstad, Helge Andre; Murarilal Ratnadevi, Chandini et al. (2018). Genome analysis of the thermoacidophilic methane oxidizer, Methylacidiphilum kamchatkense Kam1. (external link)
- Kruse, Thomas ; Erikstad, Helge Andre; Murarilal Ratnadevi, Chandini et al. (2018). Genomics of the thermoachidophilic methane oxidising bacterium "Methylacidiphilum kamchatkense Kam1T. (external link)
- Murarilal Ratnadevi, Chandini; Kruse, Thomas ; Birkeland, Nils-Kåre (2018). Genomic and Molecular characterization of Methylacidiphilum kamchatkense strain Kam1. (external link)
- Murarilal Ratnadevi, Chandini; Kruse, Thomas ; Birkeland, Nils-Kåre (2018). Genomic and Molecular characterization of Methylacidiphilum kamchatkense strain Kam1. (external link)
- Murarilal Ratnadevi, Chandini; Kruse, Thomas ; Birkeland, Nils-Kåre (2018). Methane oxidation by thermoacidophilic Methylacidiphilum kamchatkense strain Kam1. (external link)
- Gonzalez, Juan M.; Birkeland, Nils-Kåre; Garcia-Moyano, Antonio et al. (2018). Thermostable Isomerase Processes for Biotechnology. (external link)
- Garcia-Moyano, Antonio; Birkeland, Nils-Kåre (2018). Thermostable Disulfide Isomerases for Biotechnology. (external link)
- Gonzalez, Juan M.; Birkeland, Nils-Kåre; Garcia-Moyano, Antonio et al. (2017). Thermostable Isomerase Processes for Biotechnology. (external link)
- Karki, Sudeep; Garcia-Moyano, Antonio; Sayer, Christopher et al. (2017). Structural studies, substrate identification and activity of sugar aminotransferase enzymes from thermophilic (meta)genomes. (external link)
- Stoilova-Disheva, Margarita; Lyutskanova, Dimitrina; Boyadzhieva, Ivanka et al. (2016). Phylogenetic analysis reveals a novel and extremely diverse archaeal community in the Vlasa hot spring,Velingrad, Bulgaria. (external link)
- Stoilova-Disheva, Margarita; Lyutskanova, Dimitrina; Boyadzhieva, Ivanka et al. (2016). Phylogenetic analyses reveal a novel and extremely diverse archaeal community in the Vlasa hot spring,Velingrad, Bulgaria. (external link)
- Littlechild, Jennifer; Isupov, Misha; James, Paul et al. (2016). THERMOGENE - Novel thermostable enzymes for industrial biotechnology. (external link)
- Asare, Faustina; Birkeland, Nils-Kåre (2016). Serological cross-reaction between Shigella dysenteriae type 4 and Escherichia albertii DM104 is caused by inter-species transfer of the O-antigen gene cluster. (external link)
- Panosyan, Hovik; Saghatelyan, Ani; Margaryan, Armine et al. (2015). Diversity of thermophiles in Armenian geothermal springs. (external link)
- Karki, Sudeep; Garcia-Moyano, Antonio; Chris, Sayer et al. (2015). Structural studies, substrate identification and activity of sugar aminotransferase enzymes from thermophilic (meta)genomes. (external link)
- Littlechild, Jennifer; Isupov, Misha; Sayer, Christopher et al. (2015). THERMOGENE- Novel thermostable enzymes for industrial biotechnology. (external link)
- Saghatelyan, Ani; Panosyan, Hovik; Trchounian, Armen H. et al. (2015). Bacterial diversity of geothermal springs in Nagorno-Karabakh. (external link)
- Hakobyan, Anna; Panosyan, Hovik; Trchounian, Armen H. et al. (2015). Microbial diversity in Armenian saline-alkaline soils and subterranean salt deposits analyzed by molecular and culture-based methods.. (external link)
- Littlechild, Jenny; Schønheit, Peter; Birkeland, Nils-Kåre et al. (2014). THERMOGENE; Thermostable transferases for industrial biotechnology. (external link)
- Margaryan, Armine; Birkeland, Nils-Kåre; Panosyan, Hovik et al. (2014). Distribution of heavy metal resistant bacteria in Armenian copper and gold mines and their response to heavy metal stress. (external link)
- Ogino, Hiromi; Ishino, Sonoko; Haugland, Gyri Teien et al. (2014). Activation of the MCM helicase from the thermophilic archaeon, Thermoplasma acidophilum . (external link)
- Panosyan, Hovik; Birkeland, Nils-Kåre (2014). Thermostable α-amylase produced by Anoxibacillus flavitermus K103 isolated from an Armenian geothermal spring . (external link)
- Erikstad, Helge Andre; Smestad, Natalie; Birkeland, Nils-Kåre (2014). Do methanotrophic and thermoacidophilic Verrucomicrobia possess biogeographic structure?. (external link)
- Poghosyan, Lianna; Birkeland, Nils-Kåre; Panosyan, Hovik (2014). Diversity of thermophilic anaerobes in the geothermal spring, Jermuk in Armania. (external link)
- Saghatelyan, Ani; Birkeland, Nils-Kåre; Panosyan, Hovik (2014). Novel Thermus scotoductus strain isolated from Karvacahar (Nagorno-Karabakh) geothermal spring. (external link)
- Panosyan, Hovik; Birkeland, Nils-Kåre (2014). Bacterial diversity of geothermal springs of Armenia and Nagorno-Karabakh. (external link)
- Hakobyan, Anna; Birkeland, Nils-Kåre; Panosyan, Hovik et al. (2014). Microbial diversity analysis of an Armenian subterranean salt deposit using molecular and culture-based methods. (external link)
- Ogino, Hiromi; Ishino, Sonoko; Haugland, Gyri Teien et al. (2014). Activation of the MCM helicase from the thermophilic archaeon, Thermoplasma acidophilum. (external link)
- Erikstad, Helge Andre; Smestad, Natalie; Birkeland, Nils-Kåre (2014). Do methanotrophic and thermoacidophilic Verrucomicrobia possess a biogeographic structure?. (external link)
- Erikstad, Helge Andre; Nordbø, Ole Petter; Birkeland, Nils-Kåre (2013). Methane oxidation under extreme conditions by Verrucomicrobia methanotrophs. (external link)
- Birkeland, Nils-Kåre; Keen, Thomas Jeffrey (2013). Metagenomic analysis of production water from a deep and hot North Sea oil reservoir. (external link)
- Birkeland, Nils-Kåre; Schouw, Anders; Sinada, Faisal (2013). Novel Thermoanaerobacter spp. from hot water produced from the Thar Jaht oil-field in South Sudan. (external link)
- Panosyan, Hovik; Birkeland, Nils-Kåre (2013). Phylogenetic diversity of endospore-forming thermophilic bacilli isolated from geothermal springs in Armenia. (external link)
- James, P.; Littlechild, Jennifer; Isupov, M. et al. (2013). THERMOGENE - Novel thermostable enzymes for industrial biotechnology. (external link)
- Margaryan, Armine; Birkeland, Nils-Kåre; Panosyan, Hovik et al. (2013). Bacterial diversity in the Alaverdi Copper Smelter (Armenia). (external link)
- Ogino, H.; Ishino, S; Mayanagi, K. et al. (2013). Acitivation mechanism of the replicative hekicase in the thermophilic archaeon, Thermoplasma acidophilum. (external link)
- Erikstad, Helge Andre; Birkeland, Nils-Kåre (2012). Methane oxidation by thermoacidophilic Verrucomicrobia methanotrophs. (external link)
- Birkeland, Nils-Kåre; Panosyan, Hovik (2012). Cooperation in environmental microbiology between Armenia and Norway. (external link)
- Fedøy, Anita-Elin; Leiros, Hanna-Kirsti S.; Steen, Ida Helene et al. (2012). Bacterial subfamiliy II isocitrate dehydrogenase: adaptations to low and high temperatures. (external link)
- Akter, Selina; Afreen, Kazi Sabrina; Islam, M et al. (2011). FliC genotyping as a tool for epidemiological study of environmental Escherichia coli. (external link)
- Chowdhury, Fatema Moni; Rahman, Mohammed Ziaur; Khan, Sirajul islam et al. (2011). Evaluation and protective efficacy of a Shigella-like environmental strain as promising vaccine candidate against shigellosis. (external link)
- Azmuda, Nafisa; Fakruddin, Md.; Moniruzzaman, M et al. (2011). Bacterial community profiling in a tropical aquatic system in Bangladesh with emphasis on Escherichia coli. (external link)
- Erikstad, Helge Andre; Keen, Thomas Jeffrey; Jensen, Sigmund et al. (2011). Is methane oxidation by methanotrophic Verrucomicrobia copper-independent?. (external link)
- Akter, Selina; Afreen, Kazi Sabrina; Islam, Mazharul et al. (2010). Survivability and changes in Escherichia coli exposed to tropical freshwater environment. (external link)
- Azmuda, Nafisa; Fakruddin, Md.; Rahman, Mohammed Ziaur et al. (2010). Temporal variations of bacterial communities in two tropical fresh water systems with emphasis on the Escherichia coli- Shigella group. (external link)
- Akter, Selina; Afreen, Kazi Sabrina; Islam, Mazharul et al. (2010). Biofilm and colony morphology of Escherichia coli is correlated with inherent molecular structure. (external link)
- Akter, Selina; Islam, Mazharul; Afreen, Kazi Sabrina et al. (2010). Monitoring of diarrheagenic Escherichia coli in the aquatic environment of Bangladesh. (external link)
- Birkeland, Nils-Kåre; Erikstad, Helge; Keen, Jeffrey et al. (2010). Methane oxidation by thermo-acidophilic Verrucomicrobia. (external link)
- Panosyan, Hovik; Birkeland, Nils-Kåre (2010). Study of thermophilic microbial diversity in a hot mineral spring of Armenia using molecular and culture-based methods. (external link)
- Rahman, Mohammed Ziaur; Azmuda, Nafisa; Sultana, Munawar et al. (2009). Tracking of Shigella in Bangladeshi surface water: a comparative analysis of Shigella spp. and its close relatives. (external link)
- Chowdhury, Fatema Moni; Rahman, Mohammed Ziaur; Khan, Sirajul islam et al. (2009). Evaluation of Shigella-like environmental strains as possible vaccine candidates against shigellosis. (external link)
- Akter, Selina; Azmuda, Nafisa; Rahman, Mohammed Ziaur et al. (2009). Adhesion potential of gfp-marked Escherichia coli from tropical aquatic environment. (external link)
- Rahman, Mohammed Ziaur; Azmuda, Nafisa; Akhter, Salina et al. (2008). SHIGELLA-LIKE BACTERIA FROM BANGLADESHI AQUATIC ENVIRONMENTS PROVIDE POSSIBLE SHIGELLOSIS VACCINE CANDIDATES. (external link)
- DiPippo, Jonathan L.; Nesbø, Camilla L.; Dahle, Håkon et al. (2008). Kosmotoga olearia gen. nov., sp. nov., a thermophilic, anaerobic heterotroph isolated from Troll B oil production fluid in the North Sea. (external link)
- Haugland, Gyri Teien; Shin, Jae-Ho; Rollor, Clair R et al. (2008). Functional analysis of the MCM and Cdc6 proteins from the thermoacidophilic euryarchaeon Thermoplasma acidophilum. (external link)
- Sakakibara, Nozomi; Haugland, Gyri Teien; Birkeland, Nils-Kåre et al. (2008). A comparison of the Methanothermobacter thermautotrophicus and Thermoplasma acidophilum MCM helicases.. (external link)
- Islam, Tajul; Larsen, Øivind; Birkeland, Nils-Kåre (2007). A novel thermophilic type I methane-oxidizing bacterium from heated soil in Bangladesh. (external link)
- Islam, Tajul; Jensen, Sigmund; Reigstad, Laila Johanne et al. (2007). Methane oxidation at 60 degrees C and pH2 by a novel thermoacidophilic bacterium belonging to the Verrucomicrobia phylum. (external link)
- Dahle, Håkon; Garshol, Frøydis; Madsen, Marit Steine et al. (2007). Microbial community structure analysis of produced water from a high-temperature oil-field in the North-Sea. (external link)
- Dahle, Håkon; Garshol, Frøydis; Madsen, Marit Steine et al. (2007). Microbial community structure analysis of produced water from a high-temperature North-Sea oil-field. (external link)
- Rahman, Mohammed Ziaur; Sultana, Munawar; Khan, Sirajul islam et al. (2006). Serological cross-reactivity of environmental isolates of Enterobacter, Escherichia, Stenotrophomonas and Aerococcus with Shigella spp. specific antisera. (external link)
- Akhter, Humaira; Khatun, Jahanara; Khan, Sirajul islam et al. (2006). PHENOTYPIC AND GENOTYPIC VARIATIONS AMONG ESCHERICIA COLI ISOLATED FROM AQUATIC, CLINICAL, AVIAN AND MAMMALIAN SOURCES. (external link)
- Islam, Tajul; Larsen, Øivind; Jensen, Sigmund et al. (2006). The diversity of methanotrophic landfill soil communities assessed by culture-dependent and culture-independent approaches. (external link)
- Islam, Tajul; Larsen, Øivind; Jensen, Sigmund et al. (2006). THE DIVERSITY OF METHANOTROPHIC LANDFILL SOIL COMMUNITIES ASSESSED BY CULTURE-DEPENDENT AND CULTURE-INDEPENDENT APPROACHES. (external link)
- Leiros, Ingar; Nabong, Marivi P.; Haugland, Gyri Teien et al. (2006). Excision of 1-methyladenine and 3-methylcytosine from DNA by AfAlkA of Archaeoglobus fulgidus.. (external link)
- Fedøy, Anita-Elin; Karlstrøm, Mikael; Ladenstein, Rudolf et al. (2006). Biochemical characterization and structure analysis of extremophilic isocitrate dehydrogenase. (external link)
- Fedøy, Anita-Elin; Yang, Nannan; Leiros, Hanna-Kirsti S. et al. (2006). Biochemical and structural basis of cold-adaptation in isocitrate dehydrogenase from Desulfotalea psychrophila. (external link)
- Steen, Ida Helene; Fedøy, Anita-Elin; Yang, Nannan et al. (2006). Biochemical characterization and structure analysis of extremophilic isocitrate dehydrogenase. (external link)
- Birkeland, Nils-Kåre; Dahle, Håkon; Madsen, Marit (2005). Molecular and Culture-Based Analyses of Bacteria and Archaea from a North Sea Oil-Reservoir. (external link)
- Stokke, Runar; Steen, Ida Helene; Madsen, Marit et al. (2005). Thermostabilization of Isocitrate Dehydrogenase by Domain Swapping. (external link)
- Dahle, Håkon; Madsen, Marit Steine; Garshol, Frøydis et al. (2005). Molecular and Culture-Based Analysis of Bacteria and Archaea from a North Sea Oil-Reservoir. (external link)
- Knævelsrud, Ingeborg; Haugland, Gyri Teien; Birkeland, Nils-Kåre et al. (2005). Excision of dUMP from DNA by the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Stokke, Runar; Steen, Ida Helene; Karlstrom, Mikael et al. (2005). Molecular Adaptation of Isocitrate Dehydrogenase to Extreme Temperatures. (external link)
- Bjelland, Svein; Knævelsrud, Ingeborg; Haugland, Gyri et al. (2005). Excision of dUMP from DNA by the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Yang, Nannan; Karlsen, Solveig; Steen, Ida Helene et al. (2005). 1.75 Å crystal structure of isocitrate dehydrogenase from Desulfotalea psychrophila. (external link)
- Bjelland, Svein; Knævelsrud, Ingeborg; Haugland, Gyri Teien et al. (2005). Excision of dUMP from DNA by the hyperthermophilic archaeon Archaeoglobus fulgidus.. (external link)
- Fedøy, Anita-Elin; Glærum, Lisbeth; Madsen, Marit Steine et al. (2005). Molecular adaptations of isocitrate dehydrogenase to extreme temperatures. (external link)
- Yang, Nannan; Steen, IH; Karlsen, Solveig et al. (2004). Isocitrate dehydrogenases from various organisms: a model system to study structural basis of biological adaptations to extreme temperatures. (external link)
- Knævelsrud, Ingeborg; Haugland T., Gyri; Birkeland, Nils-Kåre et al. (2004). Excision of dUMP from DNA by the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Yang, N; Steen, Ida Helene; Karlsen, S et al. (2004). Isocitrate dehydrogenases from various organisms: a model system to study structural basis of biological adaptations to extreme temperatures. (external link)
- Stokke, Runar; Steen, Ida Helene; Karlstrøm, Mikael et al. (2004). Investigation of factors involved in thermostability of isocitrate dehydrogenase from the hyperthermophilic archaeon Aeropyrum pernix. (external link)
- Dahle, Håkon; Birkeland, Nils-Kåre (2004). Enrichment and isolation of thermophilic organisms capable of fermenting organic polymers. (external link)
- Knævelsrud, Ingeborg; Haugland, Gyri Teien; Birkeland, Nils-Kåre et al. (2004). Excision of dUMP from DNA by the hyperthermophilic archaeon Archaeoglobus fulgidus.. (external link)
- Knævelsrud, Ingeborg; Birkeland, Nils-Kåre; Bjelland, Svein (2003). Afung represents the principal uracil DNA glycosylase enzyme present in the hyperthermophilic archaeon Archaeoglobus fu. (external link)
- Garshol, Frøydis; Dahle, Håkon; Madsen, Marit et al. (2003). Analysis of microbial communities associated with deep North Sea oil-wells using culture-dependent and culture-independent strategies. (external link)
- Dahle, Håkon; Birkeland, Nils-Kåre (2003). Bioprospecting of thermophilic hydrogen-producing microorganisms. (external link)
- Haugland, Gyri Teien; Birkeland, Nils-Kåre (2003). Expression of Archaeoglobus fulgidus Cdc6 homologues in Escherichia coli. (external link)
- Stokke, Runar; Birkeland, Nils-Kåre (2003). Characterization of isocitrate dehydrogenase from two moderate thermophiles, Methylococcus capsulatus and Thermoplasma acidophilum. (external link)
- Chernyh, N.A.; Sokolova, T.G.; Subbotina, I.V. et al. (2003). Phylogenetic diversity of thermophilic prokaryotes in Se-reducing enrichment cultures from Mono Lake, California. (external link)
- Stokke, Runar; Birkeland, Nils-Kåre (2003). Characterization of isocitrate dehydrogenase from two moderate thermophiles , Methylococcus capsulatus and Thermoplasma acidophilum. (external link)
- Knævelsrud, Ingeborg; Haugland, Gyri Teien; Kazazi, S. et al. (2003). Afung represents the principal uracil DNA glycosylase enzyme present in the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Karlstrøm, Michael; Steen, Ida Helene; Tibbelin, Gudrun et al. (2003). X-ray structure analysis of isocitrate dehydrogenase from the hyperthermophile Aeropyrum pernix. (external link)
- Garshol, Frøydis; Dahle, Håkon; Madsen, Marit et al. (2003). Analysis of microbial communities associated with deep North Sea oil-wells using culture-dependent and culture-independent strategies. (external link)
- Steen, Ida Helene; Birkeland, Nils-Kåre (2003). Thermostability, cofactor specificity, oligomeric state and phylogenetic affiliation of isocitrate dehydrogenase from Aeropyrum pernix, Archaeoglobus fulgidus, Pyrococcus furiosus and Thermotoga maritima. (external link)
- Knævelsrud, Ingeborg; Birkeland, Nils-Kåre; Bjelland, Svein (2003). Afung represents the principal uracil DNA glycosylase enzyme present in the hyperthermophilic archaeon Archaeoglobus fu. (external link)
- Larsen, Øyvind; Bruseth, Live Janicke; Birkeland, Nils-Kåre et al. (2003). Metabolic pathways in Methylococcus capsulatus Bath. (external link)
- Karlstrøm, Michael; Steen, Ida Helene; Tibbelin, Gudrun et al. (2003). X-ray structure analysis of isocitrate dehydrogenase from the hyperthermophile Aeropyrum pernix. (external link)
- Haugland, Gyri Teien; Birkeland, Nils-Kåre (2003). Expression of Archaeoglobus fulgidus Cdc6 homologues in Escherichia coli.. (external link)
- Birkeland, Nils-Kåre; Ånensen, Hilde; Kristoffersen, Wenche et al. (2002). Cold-active methylpurine DNA glycosylase of the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Birkeland, Nils-Kåre; Garshol, Frøydis; Dahle, Håkon et al. (2002). Novel bacterial lineages dominating in oil-well formation water. (external link)
- Birkeland, Nils-Kåre; Ånensen, Hilde; Kristoffersen, Wenche et al. (2002). Cold-active methylpurine DNA glycosylase of the hyperthermophilic Archaeon Archaeoglobus fulgidus. (external link)
- Birkeland, Nils-Kåre; Ånensen, Hilde; Kristoffersen, Wenche et al. (2002). Cold-active methylpurine DNA glycosylase of the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Ommedal, Hege; Gausdal, Gro; Birkeland, Nils-Kåre (2002). Replacement of cysteine residues contributes to thermal adaptation of isocitrate dehydrogenase from Archaeoglobus fulgidus. (external link)
- Larsen, Øyvind; Bruseth, Live Janicke; Birkeland, Nils-Kåre et al. (2002). The genome sequence of Methylococcus capsulatus Bath. (external link)
- Stranden, Irene; Birkeland, Nils-Kåre (2002). Functional analysis of uncharacterized ORF's in Escherichia coli by insertion mutagenesis and construction of conditional mutants. (external link)
- Knævelsrud, Ingeborg; Bjelland, Svein; Birkeland, Nils-Kåre (2001). Uracil-DNA glycosylase from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Knævelsrud, Ingeborg; Ånensen, Hilde; Kazazi, Sabina et al. (2001). Temperature- and opposite-base-dependent excision of uracil from DNA by the hyperthermophilic Afung protein from Archaeoglobus fulgidus. (external link)
- Ommedal, Hege; Gausdal, Gro; Birkeland, Nils-Kåre (2001). Replacement of cysteine residues contributes to thermal adaptation of isocitrate dehydrogenase from Archaeoglobus fulgidus. (external link)
- Mortensen, Ture; Birkeland, Nils-Kåre (2001). Archaeoglobus fulgidus expresses two types of translation initiation factor 2, a bacterial (IF2) and a eukaryal (eIF2) homolog. (external link)
- Lillestøl, Reidun; Lien, Torleiv; Birkeland, Nils-Kåre (2001). Variation in nitrogen assimilation pathways in Archaeoglobus fulgidus are possibly caused by lateral gene transfer from a Thermococcus sp. (external link)
- Karlstrøm, Mikael; Steen, Ida Helen; Tibbelin, Gudrun et al. (2001). Preliminary X-ray crystallographic analysis of isocitrate dehydrogenases from the hyperthermophiles Aeropyrum pernix, Pyrococcus furiosus, Archaeoglobus fulgidus and Thermotoga maritima. (external link)
- Dahle, Håkon; Lien, Torleiv; Madsen, Marit et al. (2000). Characterisation of a new bacterial strain from the order Thermotogales, isolated from an oil-producing well in the North Sea. (external link)
- Larsen, Øyvind; Lien, Torleiv; Birkeland, Nils-Kåre (2000). Dissimilatory sulfite reductase from thermophiles and probe for sulfate reducers. (external link)
- Birkeland, Nils-Kåre; Larsen, Øyvind; Lien, Torleiv (2000). Dissimilatory silfite reductase: Operon structure, phylogeny and probe for sulfate reducers. (external link)
- Lillestøl, Reidun; Lien, Torleiv; Birkeland, Nils-Kåre (2000). Lateral gene transfer in hyperthermophiles: Is the glutamate dehydrogenase gene in Archaeoglobus fulgidus strain 7324 transferred from a Thermococcus sp?. (external link)
- Lillestøl, Reidun; Lien, Torleiv; Birkeland, Nils-Kåre (2000). Lateral gene transfer in hyperthermophiles: Is the glutamate dehydrogenase gene in Archaeoglobus fulgidus strain 7324 transferred from a Thermococcus sp?. (external link)
- Knævelsrud, Ingeborg; Bjelland, Svein; Birkeland, Nils-Kåre (2000). Uracil-DNA glycosylase from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Larsen, Øivind; Lien, Torleiv; Birkeland, Nils-Kåre (2000). Dissimilatory sulfite reductase from thermophiles and probe for sulfate reducers. (external link)
- Dahle, Håkon; Lien, Torleiv; Madsen, Marit Steine et al. (2000). Characterisation of a new bacterial strain from the order Thermotogales, isolated from an oil-producing well in the North Sea. (external link)
- Knævelsrud, Ingeborg; Bjelland, Svein; Birkeland, Nils-Kåre (2000). Uracil-DNA glycosylase from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Dale, Hege Avsnes; Lien, Torleiv; Madsen, Marit Steine et al. (1999). Expression of a thermostable L-malate dehydrogenase from <I>Archaeoglobus fulgidus</I> in <I>Escherichia coli</I>. (external link)
- Larsen, Øivind; Lien, Torleiv; Birkeland, Nils-Kåre (1999). Dissimilatory sulfite reductase from Archaeoglobus profundus and Desulfotomaculum thermocisternum: phylogenetic and structural implication from gene sequences. (external link)
- Steen, Ida Helene; Birkeland, Nils-Kåre; Lien, Torleiv (1999). <I>Archaeoglobus fulgidus</I> Isocitrate Dehydrogenase, Malate Dehydrogenase and Glutamate Dehydrogenase. (external link)
- Bjørgo, Ole Christian; Dahle, Håkon; Lien, Torleiv et al. (1999). Isolation and characterization of two <I>Petrotoga</I>-like isolates from a North Sea oil-producing well. (external link)
- Emmerhoff, Oddmund Johan; Birkeland, Nils-Kåre (1998). Characterization of Chaperonins form the hyperthermophilic archaeon <I>Archaeoglobus fulgidus<I>. (external link)
- Larsen, Øivind; Urtegaard, Victoria B.; Lien, Torleiv et al. (1998). Dissimilatory sulfite reductase from sulfate-reducing prokaryotes isolated from North Sea oil wells. (external link)
- Emmerhoff, Oddmund Johan; Birkeland, Nils-Kåre (1998). Chaperonins from the hyperthermophilic archaeon <I>Archaeoglobus fulgidus</I>. (external link)
Editorial
- Jiang, Hongchen; Li, Wen-Jun; Birkeland, Nils Kåre et al. (2023). Editorial: Thermophilic and halophilic extremophiles in Eurasian environments, volume II. (external link)
- Jiang, Hongchen; Li, Wen-Jun; Birkeland, Nils-Kåre et al. (2019). Thermophilic and Halophilic Extremophiles in Eurasian Environments. (external link)
Masters thesis
- Goicochea Durand, Maria Fernanda; Birkeland, Nils Kåre (2022). Diversity of psychrophilic methanotrophs from the Barents Sea seabed revealed by enrichments and reconstruction of metagenome-assembled genomes. (external link)
- Mandolini, Edoardo; Birkeland, Nils Kåre; Javier Lopez, Ruben (2020). Breakdown of keratin-laden biomass waste by the thermophilic bacterium Fervidobacterium pennivorans strain T. (external link)
- Azaryan, Ani; Trchounian, Armen H.; Panosyan, Hovik et al. (2018). Genome analysis and study of some biochemical peculiarities of Haloarcula sp. strain Salt stone-1 isolated from Avan salt deposit. (external link)
- Javier Lopez, Ruben; Birkeland, Nils Kåre (2018). Isolation and characterization of a new keratinolytic Fervidobacterium pennivorans strain from a hot spring in Tajikistan. (external link)
- Stoppel, Sarah Marie; Birkeland, Nils-Kåre (2017). Molecular analysis of Kosmotoga olearia, a deep-branching anaerobic thermophile: Transformation trials and transcriptomics. (external link)
- Hovhannisyan, Pargev; Trchounian, Armen; Panosyan, Hovik et al. (2016). Genome analysis and cloning of amylase gene of Anoxybacillus sp. strain K-1 isolated from Karvachar geothermal spring. (external link)
- Vardanyan, Gohar; Panosyan, Hovik; Birkeland, Nils Kåre (2015). Isolation, identification and characterization of lipase producing thermophilic bacilli from Armenian geothermal springs. (external link)
- Lao, Yong Yan; Birkeland, Nils-Kåre (2015). Secretome analysis of the deep-branching thermophilic Thermotogae bacterium, Kosmotoga olearia. (external link)
- Asare, Faustina; Birkeland, Nils-Kåre (2015). Analysis of the O-antigen gene clusters from the Shigella-cross-reacting strains, Escherichia albertii DM104 and Escherichia fergusonii Iso10, candidates for live shigellosis vaccine development. (external link)
- Poghosyan, Lianna; Birkeland, Nils-Kåre (2015). Prokaryotic diversity in an Armenian geothermal spring using metagenomics, anaerobic cultivation and genome sequencing. (external link)
- Dale, Kjetil; Garcia-Moyano, Antonio; Birkeland, Nils-Kåre (2015). Functional and structural analysis of split and full-length transketolase enzyme isoforms, from the anaerobic thermophilic bacterium Thermovirga lienii. (external link)
- Karki, Sudeep; Garcia-Moyano, Antonio; Birkeland, Nils-Kåre (2015). Molecular cloning, purification, structural study and substrate identification of thermostable sugar aminotransferases. (external link)
- Saghatelyan, Ani; Trchounian, Armen H.; Panosyan, Hovik et al. (2014). Study of microbiota of Karvachar (Nagorno Karabakh) geothermal spring and characterization an aerobic nonsporeforming bacterial isolate, Thermus scotoductus strain K1. (external link)
- Lerang, Anne Marie; Birkeland, Nils-Kåre (2014). Cultivation and genomics of extremophiles from a deep and hot North Sea oil reservoir. (external link)
- With, Trude; Birkeland, Nils-Kåre (2014). Analyses of Thermotogales secretomes. (external link)
- Vedøy, Oda Barth; Birkeland, Nils-Kåre (2014). The Hfq RNA chaperone in the deep-branching Thermotogales lineage: Attempts to reveal its biological role. (external link)
- Smestad, Natalie Bennett; Birkeland, Nils-Kåre; Erikstad, Helge Andre (2014). Phylogeny and diversity of new isolates of aerobic thermoacidophilic methane oxidizing Verrucomicrobia. (external link)
- Khadka, Roshan; Birkeland, Nils-Kåre (2012). Characterization of the pmoB2d1 domain of the particulate methane monooxygenase B2 subunit from ‘Methylacidiphilum kamchatkense’ Kam1. (external link)
- Erikstad, Helge; Birkeland, Nils-Kåre; Jensen, Sigmund (2010). Differensiert uttrykk av metan monooxygenase genene i den termoacidofile bakterien Methylacidiphilum kamchatkense. (external link)
- Jenssen, Eirin Lunden; Birkeland, Nils-Kåre (2009). Molecular characterization of an environmental bacterial isolate with strong serological cross-reaction with Shigella boydii 15. (external link)
- Schouw, Anders; Birkeland, Nils-Kåre (2008). Isolering og karakterisering av nye termofile bakteriestammer fra et oljereservoar i det sydlige Sudan. (external link)
Academic lecture
- Dzhuraeva, Munavvara; Birkeland, Nils Kåre; Bobodzhanova, Khursheda (2022). Thermobaculum Tajikiense Sp. Nov., a Novel Thermophilic Bacterial Species from A High-Altitude Geothermal Spring in Tajikistan. (external link)
- Dzhuraeva, Munavvara; Ratnadevi, Chandini Murarilal; Birkeland, Nils Kåre et al. (2021). Metagenome-assembled genomes from a high-altitude geothermal spring in Tajikistan provide insights into its microbial diversity. (external link)
- Birkeland, Nils Kåre (2021). Thermophilic Breakdown of Feather Keratin by Fervidobacteria. (external link)
- Birkeland, Nils-Kåre (2019). Allopatric evolution of thermoacidophilic Verrucomicrobia methanotrophs?. (external link)
- Birkeland, Nils-Kåre (2019). Allopatric Evolution among Thermoacidophilic Verrucomicrobial Methanotrophs from Globally Distributed Terrestrial Hot Springs. (external link)
- Kruse, Thomas ; Murarilal Ratnadevi, Chandini; Birkeland, Nils-Kåre (2019). Complete genome sequence analysis of the thermoacidophilic verrucomicrobial methanotroph “Ca. Methylacidiphilum kamchatkense” strain Kam1 and comparison with its closest relatives. (external link)
- Birkeland, Nils-Kåre; Hansen, Thomas Kruse; Murarilal Ratnadevi, Chandini (2018). Methane oxidation by extremophilic verrucomicrobia adapted to acidic geothermal environments. (external link)
- Murarilal Ratnadevi, Chandini; Kruse, Thomas ; Birkeland, Nils-Kåre (2018). Methane-oxidation in extreme environments; the complete genome sequence of the thermoacidophilic methanotrophic Verrucomicrobia, Methylacidiphilum kamkcatkense. (external link)
- Birkeland, Nils-Kåre (2018). Methane oxidation by extremophilic Verrucomicrobia adapted to acidic geothermal environments. (external link)
- Birkeland, Nils-Kåre (2018). Verrucomicrobia Methanotrophs, a Novel Group of Extremophiles Adapted to Acidic Geothermal Environments. (external link)
- Kruse, Thomas ; Erikstad, Helge Andre; Murarilal Ratnadevi, Chandini et al. (2017). Molecular and genomic analysis of thermoacidophilic methanotrophic verrucomicrobia . (external link)
- Birkeland, Nils-Kåre (2017). Diversity and adaptation of extreme thermophiles. (external link)
- Birkeland, Nils-Kåre (2017). Diversity of anaerobic thermophiles in North Sea oil reservoirs and their biotechnological potential. (external link)
- Birkeland, Nils-Kåre (2017). Diversity and adaptations of extremophilic microorganisms. (external link)
- Birkeland, Nils-Kåre (2016). Extremophilic methane-oxidizing Verrucomicrobia. (external link)
- Birkeland, Nils-Kåre (2016). Anaerobic thermophiles from deep and hot North Sea oil wells. (external link)
- Birkeland, Nils-Kåre (2016). Diversity of thermophiles from North Sea oil fields. (external link)
- Birkeland, Nils-Kåre (2015). Methane oxidation by methanotrophic Verrucomicrobia. (external link)
- Birkeland, Nils-Kåre (2014). Methane oxidation in extreme environments by thernmoacidophilic methanotrophic Verrucomicrobia . (external link)
- Margaryan, Armine; Birkeland, Nils-Kåre; Popov, Y et al. (2014). Armenian mines as a source of heavy metal accumulating metalophilic bacilli. (external link)
- Birkeland, Nils-Kåre (2014). Adaptations to hot and cold: a case study of isocitrate dehydrogenase from extremophiles. (external link)
- Birkeland, Nils-Kåre (2014). Adaptations to hot and cold: a case study of isocitrate dehydrogenase from extremophiles. (external link)
- Birkeland, Nils-Kåre (2014). Adaptations to hot and cold: a case study of isocitrate dehydrogenase from extremophiles. (external link)
- Birkeland, Nils-Kåre (2014). Diversity and adaptations in Archaea, the third domain of life. (external link)
- Birkeland, Nils-Kåre (2014). Antarctic cryptic microbial communities: Martian analogs for extremophilic life?. (external link)
- Birkeland, Nils-Kåre (2012). Chemical strategies of extremophiles. (external link)
- Birkeland, Nils-Kåre (2012). Diversity of Extremophiles. (external link)
- Birkeland, Nils-Kåre (2011). Extremophiles; adaptation and diversity. (external link)
- Birkeland, Nils-Kåre (2011). Archaeal DNA replication. (external link)
- Birkeland, Nils-Kåre (2011). The GINS complex from Thermoplasma acidophilum may function as a homotetramer in DNA replication. (external link)
- Birkeland, Nils-Kåre (2011). Life on the edge: Diversity and adaptations of extremophiles. (external link)
- Birkeland, Nils-Kåre; Erikstad, Helge; Keen, Jeffrey et al. (2010). Methane oxidation by a novel lineage of thermo-acidophilic methanotrophic Verrucomicrobia. (external link)
- Tuffin, I.M.; Khan, N.; Makhalanyane, T. et al. (2010). High microbial diversity in Antarctic Dry Valley soil microenvironments. (external link)
- Birkeland, Nils-Kåre (2009). Thermophilic methane oxidizers belonging to the phylum Verrucomicrobia. (external link)
- Birkeland, Nils-Kåre (2009). The oil reservoir ecosystem: what is happening and who is living down there?. (external link)
- Birkeland, Nils-Kåre (2009). Extremophiles: basic concepts. (external link)
- Birkeland, Nils-Kåre (2009). Oil Well ecology: What’s happening and who is living down there?. (external link)
- Birkeland, Nils-Kåre (2009). Genetics of thermophiles. (external link)
- Birkeland, Nils-Kåre (2009). Functional analysis of the DNA replication initiation proteins, Cdc6 and MCM, from Thermoplasma acidophilum. (external link)
- Rahman, Mohammed Ziaur; Jahid, Iqbal Kabir; Azmuda, Nafisa et al. (2009). Evolutionary and genetic relatedness of Shigella-like bacteria in aquatic environment of Bangladesh. (external link)
- Birkeland, Nils-Kåre (2009). Molecular basis of the stability of biomoleculees in hot environments. (external link)
- Birkeland, Nils-Kåre (2009). The genome of Thermosipho africanus: lateral genetic connections to Firmicutes and Archaea. (external link)
- Birkeland, Nils-Kåre; Erikstad, Helge; Islam, Tajul et al. (2009). Methane oxidation in extreme environments by a novel lineage of thermo-acidophilic methanotrophic Verrucomicrobia. (external link)
- Haugland, Gyri Teien; Shin, Jae-Ho; Rollor, Clair R et al. (2008). Functional analysis of the MCM and Cdc6 proteins from the thermoacidophilic euryarchaeon Thermoplasma acidophilum. (external link)
- Birkeland, Nils-Kåre; Islam, Tajul (2008). Thermo-acidophilic methane oxidation by Verrucmicrobia extends our perception of biological methane oxidation. (external link)
- O-Thong, Sompong; Prasertsan, Poonsuk; Birkeland, Nils-Kåre (2008). Thermophilic biohydrogen production from palm oil mill effluent by mixed culture community with anaerobic sequencing batch reactor (ASBR). (external link)
- Sharma, Rohit; Khullar, Esha; Bangsal, Karan et al. (2008). Nitrile hydrolysing enzymes from extremophiles: their role in biocatalysis. (external link)
- Birkeland, Nils-Kåre (2007). Microbial Diversity of Deep and Hot Petroleum Reservoirs. (external link)
- Birkeland, Nils-Kåre (2007). Isocitrate dehydrogenase from (hyper)thermophiles; Molecular adaptations to high temperatures. (external link)
- Sharma, Rohit; Kaur, Jasjeet; Birkeland, Nils-Kåre (2007). Synthesis of methyl ester/s by transesterification using lipase produced by a thermophile. (external link)
- Birkeland, Nils-Kåre (2006). Microbial diversity in deep petroleum reservoirs. (external link)
- Birkeland, Nils-Kåre (2006). Isocitrate dehydrogenase from (hyper)thermophiles; Molecular adaptations to high temperatures. (external link)
- Jensen, Sigmund; Birkeland, Nils-Kåre; Neufeld, Josh d et al. (2006). Exploring the microbiology of a deep water coral reef outside mid Norway. (external link)
- Leiros, Ingar; Nabong, Marivi P.; Haugland, GT et al. (2006). Excision of 1-methyladenine and 3-methylcytosine from DNA by AfAlkA of Archaeoglobus fulgidus. (external link)
- Birkeland, Nils-Kåre (2005). Sulphate-reducing bacteria and archaea. (external link)
- Birkeland, Nils-Kåre (2004). Extremophiles: basic concepts. (external link)
- Steen, Ida Helene; Karlstrøm, Mikael; Stokke, Runar et al. (2004). Molecular adaptation of isocitrate dehydrogenase to high temperature. (external link)
- Birkeland, Nils-Kåre (2004). Natural gas and biotechnology: Bioprospecting of methane-oxidizing bacteria. (external link)
- Irimia, Adriana; Vellieux, Frederic M.D.; Madern, Dominique et al. (2004). The 2.9 Å resolution structure of malate dehydrogenase from the hyperthermophilic archaeon Archaeoglobus fulgidus: mechanisms of oligomerisation and thermal stabilisation. (external link)
- Lillehaug, Johan; Larsen, Øyvind; Bruseth, Live Janicke et al. (2003). The genomic sequencing of Methylococcus capsulatus (Bath). Repair of alkylated DNA by oxidative demethylation. (external link)
- Knævelsrud, Ingeborg; Ruoff, Peter; Ånensen, Hilde et al. (2003). Base excision repair of deaminated DNA-cytosine in Archaea: novel genes and mechanisms. (external link)
- Dahle, Håkon; Garshol, Frøydis; Madsen, Marit et al. (2003). Treasures in the deep biosphere of North Sea oil-wells. (external link)
- Karlstrøm, Michael; Steen, Ida Helene; Tibbelin, Gudrun et al. (2003). X-ray structure analysis of isocitrate dehydrogenase from the hyperthermophile Aeropyrum pernix. (external link)
- Birkeland, Nils-Kåre (2002). Thermostable proteins from hyperthermophilic microorganisms. (external link)
- Larsen, Øyvind; Bruseth, Live Janicke; Birkeland, Nils-Kåre et al. (2002). Sequencing of the Methylococcus capsulatus genome. (external link)
- Birkeland, Nils-Kåre (2002). Thermophilic microbes from North Sea oil wells and their thermostable proteins. (external link)
- Birkeland, Nils-Kåre (2002). Bakterielle næringskomponenter og metabolisme. (external link)
- Larsen, Øyvind; Lien, Torleiv; Birkeland, Nils-Kåre (2001). Detection of sulfate reducers indigenous to North Sea oil wells using probes based on dissimilatory sulfite reductase gene sequences. (external link)
- Lien, Torleiv; Birkeland, Nils-Kåre; Madsen, Marit et al. (2001). Members of the Thermotogales order isolated from hot North Sea oil field water. (external link)
- Steen, Ida Helene; Madsen, Marit Steine; Lien, Torleiv et al. (2000). Isocitrate dehydrogenase from Aeropyrum pernix. (external link)
- Bjørgo, Ole Christian; Lien, Torleiv; Madsen, Marit Steine et al. (2000). Thermosipho strain TBA5, a new thermophilic anaerobic bacterium, isolated from a North Sea oil field. (external link)
- Dale, Hege Avsnes; Lien, Torleiv; Madsen, Marit Steine et al. (2000). Expression and characterization of a recombinant L-malate dehydrogenase from Archaeoglobus fulgidus strain VC-16. (external link)
- Steen, Ida Helene; Madsen, Marit; Lien, Torleiv et al. (2000). Isocitrate dehydrogenase from Aeropyrum pernix. (external link)
- Bjørgo, Ole Christian; Lien, Torleiv; Madsen, Marit et al. (2000). Thermosipho strain TBA5, a new thermophilic anaerobic bacterium, isolated from a North Sea oil field. (external link)
- Dale, Hege Avsnes; Lien, Torleiv; Madsen, Marit et al. (2000). Expression and characterization of a recombinant L-malate dehydrogenase from Archaeoglobus fulgidus strain VC-16. (external link)
- Birkeland, Nils-Kåre (2000). Anaerobic microbiology at University of Bergen. (external link)
- Birkeland, Nils-Kåre (1999). Overview of the research on molecular biology and biochemistry of thermophiles in Bergen. (external link)
- Langelandsvik, Anne Siri; Aalen, Nina; Birkeland, Nils-Kåre et al. (1996). L-Malate dehydrogenase from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Emmerhoff, Oddmund Johan; Birkeland, Nils-Kåre (1996). A thermosome-encoding gene from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Steen, Ida Helene; Hvoslef, Hilde; Lien, Torleiv et al. (1996). Archaeoglobus fulgidus isocitrate dehydrogenase: Purification, characterization, thermostability genetic analysis and phylogeny. (external link)
- Hvoslef, Hilde; Steen, Ida Helene; Lien, Torleiv et al. (1996). Expression of a thermostable isocitrate dehydrogenase from the hyperthermophilic Archaeoglobus fulgidus in Escherichia coli. (external link)
- Emmerhoff, Oddmund Johan; Birkeland, Nils-Kåre (1996). A chaperonin-encoding gene from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Hvoslef, Hilde; Steen, Ida Helene; Lien, Torleiv et al. (1996). Expression of a thermostable isocitrate dehydrogenase from the hyperthermophilic Archaeoglobus fulgidus in Escherichia coli. (external link)
- Lien, Torleiv; Madsen, Marit Steine; Rainey, Fred A. et al. (1996). Isolation and characterization of a novel Petrotoga sp. from a North Sea oil-producing well. (external link)
- Steen, Ida Helene; Hvoslef. Hilde, [Mangler fornavn]; Lien, Torleiv et al. (1996). Archaeoglobus fulgidus isocitrate dehydrogenase: Purification, characterization, thermostability, genetic analysis and phylogeny. (external link)
- Emmerhoff, Oddmund Johan; Birkeland, Nils-Kåre (1996). A thermosome-encoding gene from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
- Emmerhoff, Oddmund Johan; Birkeland, Nils-Kåre (1996). A chaperonin-encoding gene from the hyperthermophilic archaeon Archaeoglobus fulgidus. (external link)
Doctoral dissertation
- Boteva, Nikoleta; Kambourova, Margarita; Birkeland, Nils Kåre (2021). Diversity and biotechnological potential of thermophilic microorganisms from Bulgarian hot springs. (external link)
- Chaikitkaew, Srisuda; O-Thong, Sompong; Birkeland, Nils Kåre (2021). Development of Simultaneous Biogas Upgrading and Organic Compounds Production by CO2 Fixing Bacterium. (external link)
- Singkhala, Apinya; O-Thong, Sompong; Birkeland, Nils Kåre (2018). Metagenomics and Isolation of Thermophilic Cellulase - producing Bacteria from Thermophilic High Solid Digestion Condition. (external link)
- Aspevik, Tone; Oterhals, Åge; Birkeland, Nils-Kåre (2016). Fish protein hydrolysates based on Atlantic salmon by-products -Enzyme-cost efficiency and characterization of sensory, surface-active and nutritional properties. Dissertation for the degree of phisosophiae doctor (PhD). (external link)
- Margaryan, Armine; Panosyan, Hovik; Birkeland, Nils Kåre (2014). Microbiota of ore rock of Armenian copper and gold mines, isolation, identification and metal resistance mechanisms of heavy metal resistant bacilli. (external link)
- Fedøy, Anita-Elin; Birkeland, Nils-Kåre (2014). Structure-function analysis of isocitrate dehydrogenase subfamily II: Adaptations to hot and cold. (external link)
- Azmuda, Nafisa; Khan, Sirajul Islam; Birkeland, Nils Kåre (2013). Diversity and survival of Escherichia coli and Shigella-like bacteria in the aquatic environments of Bangladesh. (external link)
- Chowdhury, Fatema Moni; Ahsan, Chowdhury Rafiqul; Birkeland, Nils Kåre (2013). Determination of virulence and pathogenicity of environmental Shigella-like isolates and evaluation of possible vaccine strains. (external link)
- Akter, Selina; Khan, Sirajul Islam; Birkeland, Nils Kåre (2013). Adaptation and survival of Escherichia coli in tropical aquatic environment. (external link)
- Rahman, Mohammed Ziaur; Khan, Sirajul Islam; Birkeland, Nils Kåre (2010). Genotypic and phenotypic diversity of environmental Shigella-like bacteria isolated from freshwater sources in Bangladesh. (external link)
- Islam, Tajul; Birkeland, Nils-Kåre (2009). Discovery of novel methanotrophs from extreme environments. (external link)
- Haugland, Gyri Teien; Birkeland, Nils-Kåre (2008). Regulation of DNA replication in Archaea; Functional analysis of DNA replication initiation proteins in Thermoplasma acidophilum. (external link)
- Dahle, Håkon; Birkeland, Nils-Kåre (2007). Microbiological analyses of produced water from a high-temperature oil formation in the North-Sea. (external link)
- O-Thong, Sompong; Prasertsan, Poonsuk; Birkeland, Nils Kåre (2007). Optimization and microbial community analysis for production of biohydrogen from palm oil mill effluent by thermophilic fermentative process. (external link)
- Stokke, Runar; Birkeland, Nils-Kåre; Steen, Ida Helene (2006). Isocitrate dehydrogenase from extremophiles; Molecular adaptations to high temperatures. (external link)
- Knævelsrud, Ingeborg; Birkeland, Nils-Kåre (2006). DNA Base Excision Repair of the Hyperthermophilic Archaeon Archaeoglobus fulgidus. (external link)
- Birkeland, Nils Kåre (1992). Control of bacteriophage P2 gene expression: regulation of middle and late transcription. (external link)
Academic chapter/article/Conference paper
- Dzhuraeva, Munavvara; Margaryan, Armine A.; Ratnadevi, Chandini Murarilal et al. (2021). Microbial Diversity of High-Altitude Geothermal Springs in Tajikistan. (external link)
- Margaryan, Armine; Panosyan, Hovik; Birkeland, Nils Kåre (2021). Heavy Metal Resistance in Prokaryotes: Mechanism and Application. (external link)
- Saghatelyan, Ani; Panosyan, Hovik; Birkeland, Nils Kåre (2021). The Genus Thermus: A Brief History of Cosmopolitan Extreme Thermophiles: Diversity, Distribution, Biotechnological Potential and Applications. (external link)
- Mashzhan, Akzhigit; Lopez, Ruben Javier; Kistaubayeva, Aida et al. (2021). Analysis and Characteristics of Thermal Springs in Kazakhstan. (external link)
- Geliashvili, Natia; Jaiani, Ekaterine; Tediashvili, Marina et al. (2021). Taxonomic Characteristics of Dominant Microbial Communities in Hot Spring Sediments in Western Georgia. (external link)
- Margaryan, Armine; Shahinyan, Grigor; Hovhannisyan, Pargev et al. (2018). Geobacillus and Anoxybacillus spp.from Terrestrial Geothermal Springs Worldwide: Diversity and Biotechnological Applications. (external link)
- Panosyan, Hovik; Margaryan, Armine; Poghosyan, Lianna et al. (2018). Microbial Diversity of Terrestrial Geothermal Springs in Lesser Caucasus. (external link)
- Sharma, Rohit; Thakur, Vishal; Sharma, Monika et al. (2013). Biocatalysis through thermostable lipases: adding flavor to chemistry. (external link)
- Birkeland, Nils-Kåre (2005). Sulphate-reducing Bacteria and Archaea. (external link)
- Birkeland, Nils-Kåre (2004). The Microbial Diversity of Deep Subsurface Oil Reservoirs. (external link)
- Steen, Ida Helen; Hvoslef, Hilde; Lien, Torleiv et al. (2001). Isocitrate Dehydrogenase, Malate Dehydrogenase, and Glutamate Dehydrogenase from Archaeoglobus fulgidus. Hyperthermophilic Enzymes, Part B. Michael W.W.Adams and Robert M. Kelly (eds.). (external link)
Academic anthology/Conference proceedings
- Egamberdieva, Dilfuza; Birkeland, Nils Kåre; Li, Wen-Jun et al. (2021). Microbial Communities and their Interactions in the Extreme Environment. (external link)
- Egamberdieva, Dilfuza; Birkeland, Nils-Kåre; Panosyan, Hovik et al. (2018). Extremophiles in Eurasian Ecosystems: Ecology, Diversity, and Applications. (external link)
Lecture
- Garcia-Moyano, Antonio; Birkeland, Nils-Kåre (2018). Disulfide isomerases for biotechnology. (external link)
- Erikstad, Helge Andre; Smestad, Natalie Bennett; Birkeland, Nils-Kåre (2015). Methane oxidation by extremophilic verrucomicrobia. (external link)
- Ogino, Hiromi; Ishino, Sonoko; Birkeland, Nils-Kåre et al. (2015). Cdc45-independent activation of replicative helicase in the thermophilic archaeon, Thermoplasma acidophilum. (external link)
- Birkeland, Nils-Kåre (2015). Chemical strategies for adaptations in extremophiles. (external link)
- Birkeland, Nils-Kåre (2015). Diversity of Extremophiles. (external link)
- Birkeland, Nils-Kåre (2014). Archaea; The third domain of life. Diversity and temperature adaptations. (external link)
- Saghatelyan, Ani; Panosyan, Hovik; Trchounian, Armen H. et al. (2014). Investigation of microbial diversity of geothermal springs in Nagorno-Karabakh based on metagenomic and culture-based approaches. (external link)
- Hakobyan, Anna; Panosyan, Hovik; Trchounian, Armen H. et al. (2014). Identification of halophilic Archaea from the Avan salt mine in Armenia using a polyphasic approach including 16S rRNA gene sequence polymorphism. (external link)
Short communication
- O-Thong, Sompong; Khongkliang, Peerawat; Mamimin, Chonticha et al. (2017). Draft genome sequence of Thermoanaerobacterium sp. strain PSU-2 isolated from thermophilic hydrogen producing reactor. (external link)
- Saghatelyan, Ani; Poghosyan, Lianna; Panosyan, Hovik et al. (2015). Draft genome sequence of Thermus scotoductus strain K1, isolated from a geothermal spring in Karvachar, Nagorno Karabakh. (external link)
- Erikstad, Helge Andre; Birkeland, Nils-Kåre (2015). Draft genome sequence of "Candidatus Methylacidiphilum kamchatkense" strain Kam1, a thermoacidophilic methanotrophic verrucomicrobium. (external link)
- Knævelsrud, Ingeborg; Kazazic, Sabina; Birkeland, Nils-Kåre et al. (2014). The pH optimum of native uracil-DNA glycosylase of Archaeoglobus fulgidus compared to recombinant enzyme indicates adaption to cytosolic pH. (external link)
Popular scientific lecture
- Boteva, Nicoleta; Kambourova, Margarita; Birkeland, Nils-Kåre (2016). Diversity and biotechnological potential of microbial communities in Bulgarian hot springs based on metagenomic analyses. (external link)
- Birkeland, Nils-Kåre (2011). Citation, references and plagiarism. (external link)
- Birkeland, Nils-Kåre (2011). Samarbeid med Yerevan State University, Armenia, på mikrobiell biodiversitet i ekstreme miljø. (external link)
- Birkeland, Nils-Kåre (2009). Extremophilic microorganisms; basic concepts. (external link)
- Birkeland, Nils-Kåre (2009). Stability of biomolecules in hot environments; lessons from thermophiles. (external link)
- Birkeland, Nils-Kåre (2006). Sulfatreduserende bakterier - venner eller fiender?. (external link)
- Birkeland, Nils-Kåre (2006). Extremophiles. (external link)
- Birkeland, Nils-Kåre (2000). Termofile mikroorganismer: nøkkelen til livets opprinnelse?. (external link)
- Larsen, Øivind; Urtegaard, Victoria B.; Lien, Torleiv et al. (1998). Detection of sulfate- and sulfite-reducing bacteria using dissimilatory sulfite reductase as a target gene. (external link)
- Birkeland, Nils-Kåre (1997). Thermostable dehydrogenases from Archaeoglobus fulgidus. (external link)
- Birkeland, Nils-Kåre; Lillehaug, D. (1994). Molecular characterization of the lactococcal bacteriophage phi-LC3: Analysis of the integrative and host lysis regions. (external link)
Abstract
- Margaryan, Armine; Panosyan, Hovik; Birkeland, Nils-Kåre et al. (2015). Heavy metal resistance of Bacillus subtilis AG4 isolated from the Sotk Gold Mine in Armenia. (external link)
- Margaryan, Armine; Birkeland, Nils-Kåre; Panosyan, Hovik et al. (2013). The effect of combined heavy metal ions on copA, nikA and czcD genes expression of metal-resistant bacilli. (external link)
- Birkeland, Nils Kåre; Nielsen, Ragnhild; Lindqvist, Bjørn H (1984). Invitro deletion analysis of a gene controlling late gene-expression of phage-P2. (external link)
Errata
- Makhalanyane, Thulani P.; Valverde, Angel; Birkeland, Nils-Kåre et al. (2014). Erratum: Using network analysis to explore co-occurrencepatterns in soil microbial communitie (ISME Journal (2014) 8 (952) DOI:10.1038/ismej.2013.236). (external link)
- Makhalanyane, Thulani P.; Valverde, Angel; Birkeland, Nils-Kåre et al. (2014). Erratum: Evidence for successional development in antarctic hypolithic bacterial communities (ISME Journal (2014) 8 (952) DOI:10.1038/ismej.2013.230). (external link)
Website (informational material)
Programme participation
Thesis at a second degree level
Projects
Current and previous projects, networks and funding for advanced equipment:
2021 - 2024: ThermoK: Thermophilic break-down of keratin-laden biomass waste. ERA-NET Cofund on Food Systems and Climate (https://www.uib.no/en/thermok).
2018 - 2022: (Eurasian - Norwegian) network for research-based higher education in microbial biotechnology. Diku.
2017 - 2021: Methane oxidation by extremophilic Verrucomicrobia adapted to geothermal
environments. Research Council of Norway. FRIMEDBIO.
2017 - 2020: Thermostable isomerase processes for biotechnology (TIPs). ERA-IB/BIOTEK2021.
2017 - 2019: (Eurasian - Norwegian) Network for improving research based higher education in basic and applied microbiology.
2015 - 2016: Extremophilic Archaea in Bulgarian geothermal environments. BG09 Programme. EEA Scholarships Fund.
2013 - 2016: THERMOGENE - Novel thermostable enzymes for industrial biotechnology. NFR/ERA-NET Industrial Biotechnology project
2014 - 2015: Integrative analysis of extremophiles in search for new biotechnological solutions. NILS Science and Sustainability (ES07). EEA Grant.
2013 - 2015: Eurasian-Norwegian network for higher education and research in environmental microbiology and biotechnology
2011 - 2015: Cooperation in environmental microbiology between Armenia and Norway. SIU
2012: Geomicrobiology for bioenergy. The Agricultural Research Development Agency, Thailand.
2011 - 2014: Cooperation with Armenia in microbiology of extreme environments. SIU/UD. 1.8 mill NOK.
2011-2014: Biological methane oxidation by methanotrophic Verrucomicrobia under hot and acidic conditions; evolution of an ancient metabolic trait. NFR, 3.5 mill NOK.
2009-2012: Subsurface metagenomics, functional microbial diversity analysis and gene discovery in deep and hot petroleum reservoirs. VISTA. 2.5 mill NOK.
2010: Is methane oxidation an ancient metabolic trait? Centre for Geobiology, UiB. 180.000 NOK.
2007-2010: Metagenomics and gene discovery in Antarctic terrestrial habitats. The Research Council of Norway/The South-Africa programme. 898.000 NOK.
2009-2012: The Nordic Archaea Network. NordForsk.
2008: Comparative genomics of Archaeoglobus fulgidus strain 7324, a subsurface hyperthermophilic sulfate-reducing archaeon isolated from a hot North-Sea oil-well. University of Bergen/ Friforsk. 300.000 NOK.
2003-2011: Assessment of microbial pollution and diversity of Escherichia coli and Shigella in freshwater resources in Bangladesh. NUFU. 6.5 mill NOK.
2007-2010: Silicon Cell Model for the central carbohydrate metabolism of the archaeon Sulfolobus solfataricus under temperature variation. SysMo.
2004-2007: Metanspisende bakterier i havbunnsmiljø. VISTA. 1.5 millNOK.
2006-2007: Archaeoglobus fulgidus strain 7324: a unique archaeal sulfate reducer. The Research Council of Norway/ DAAD. 50.000 NOK.
2003-2007: Natural gas and biotechnology (NABI): bioprospecting of methane-oxidizing bacteria. The Norwegian Research Council/ Bioprospecting programme. 6.7 mill NOK.
2003-2007: Biological adaptations to extreme temperatures. The Norwegian Research Council/ Strategic university programme. 5.9 mill NOK.
2003-2007: Archaeal cell-cycle regulation. The Research Council of Norway. 1.7 mill NOK.
2006: Robot for automated picking of bacterial colonies (GenePix2xt). The Research Council of Norway. 1.7 mill NOK.
2002-2006: Biotechnology of intraterrestrial microorganisms. The Research Council of Norway/ Bioprospecting. 1.6 mill NOK.
2003-2005: Reduction of toxic metals and radionuclides by thermophilic prokaryotes. INTAS. 450.000 NOK.
2002-2004: Reduction of metals by thermophilic prokaryotes. NATO. 100.000 NOK.
1999-2003: Biology of Thermophiles. Nordic network. NorFA. 1.5 mill NOK.
1997-2001: VIRTUE: Bioaktive substanser. Wallenbergfondet. 475.000 NOK.
1997-1999: Termoresistens hos Archaeoglobus. The Research Council of Norway. 288.000 NOK.
1996-1999: Dissimilatorisk sulfitt reduktase fra oljebakterier. The Research Council of Norway. 1.2 mill NOK.
1995: Iso-sitronsyre dehydrogenase i Desulfobacter. The Research Council of Norway. 412.000 NOK.
1994: Generell drifts- og utstyrsbevilgning. The Research Council of Norway. 150.000 NOK.