Browsing Bergen Open Research Archive by Author "Birkeland, Nils-Kåre"
Now showing items 1-13 of 13
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Anoxybacillus karvacharensis sp. nov., a novel thermophilic bacterium isolated from the Karvachar geothermal spring in Nagorno-Karabakh
Panosyan, Hovik; Margaryan, Armine; Birkeland, Nils-Kåre (Journal article; Peer reviewed, 2021)Twelve thermophilic Anoxybacillus strains were isolated from sediment and water samples from a Karvachar hot spring located in the northern part of Nagorno-Karabakh. Based on phenotypic, chemotaxonomic and phylogenetic ... -
Bacterial Community Profiling of Tropical Freshwaters in Bangladesh
Azmuda, Nafisa; Fakruddin, Md.; Khan, Sirajul Islam; Birkeland, Nils-Kåre (Peer reviewed; Journal article, 2019)Seasonal and spatial variations in the bacterial communities of two tropical freshwater sources in Bangladesh, Lake Dhanmondi in central Dhaka, and a pond in the outskirts of Dhaka, were assessed and compared using PCR-DGGE ... -
Complete genome sequence analysis of Archaeoglobus fulgidus strain 7324 (DSM 8774), a hyperthermophilic archaeal sulfate reducer from a North Sea oil field
Birkeland, Nils-Kåre; Schoenheit, Peter; Poghosyan, Lianna; Fiebig, Anne; Klenk, Hans-Peter (Peer reviewed; Journal article, 2017-12-16)Archaeoglobus fulgidus is the type species of genus Archaeoglobus Stetter 1998, a hyperthermophilic sulfate reducing group within the Archaeoglobi class of the euryarchaeota phylum. Members of this genus grow heterotrophically ... -
Complete genome sequence analysis of the thermoacidophilic verrucomicrobial methanotroph “Candidatus Methylacidiphilum kamchatkense” strain Kam1 and comparison with its closest relatives
Hansen, Thomas Kruse; Murarilal Ratnadevi, Chandini; Erikstad, Helge Andre; Birkeland, Nils-Kåre (Peer reviewed; Journal article, 2019-08-09)Background: The candidate genus “Methylacidiphilum” comprises thermoacidophilic aerobic methane oxidizers belonging to the Verrucomicrobia phylum. These are the first described non-proteobacterial aerobic methane oxidizers. ... -
Draft Genome Sequence of "Candidatus Methylacidiphilum kamchatkense" Strain Kam1, a Thermoacidophilic Methanotrophic Verrucomicrobium.
Erikstad, Helge Andre; Birkeland, Nils-Kåre (Peer reviewed; Journal article, 2015-03-05)"Candidatus Methylacidiphilum kamchatkense" strain Kam1 is an aerobic methane-oxidizing thermoacidophilic bacterium belonging to the Verrucomicrobia phylum. It was recovered from an acidic geothermal site in Uzon Caldera, ... -
Draft Genome Sequence of Escherichia coli Strain Tj, Isolated from the Varzob River in Tajikistan
Dzhuraeva, Munavvara; Shokirova, Mehrangez; Panosyan, Hovik; Bobodzhanova, Khursheda; Birkeland, Nils-Kåre (Journal article, 2020)The 4.6-Mbp draft genome sequence of Escherichia coli strain Tj, isolated from the Varzob River in Tajikistan, is presented. This strain possesses four prophage elements related to Shigella phage SfV, E. coli O157:H7-specific ... -
Draft Genome Sequence of Thermus scotoductus Strain K1, Isolated from a Geothermal Spring in Karvachar, Nagorno Karabakh
Saghatelyan, Ani; Poghosyan, Lianna; Panosyan, Hovik; Birkeland, Nils-Kåre (Peer reviewed; Journal article, 2015-11-12)The 2,379,636-bp draft genome sequence of Thermus scotoductus strain K1, isolated from geothermal spring outlet located in the Karvachar region in Nagorno Karabakh is presented. Strain K1 shares about 80% genome sequence ... -
Genomic Insights into Methanotrophy: The Complete Genome Sequence of Methylococcus capsulatus (Bath)
Ward, Naomi; Larsen, Øivind; Sakwa, James; Bruseth, Live; Khouri, Hoda; Durkin, A. Scott; Dimitrov, George; Jiang, Lingxia; Scanlan, David; Kang, Katherine H.; Lewis, Matt; Nelson, Karen E.; Methé, Barbara; Wu, Martin; Heidelberg, John F.; Paulsen, Ian T.; Fouts, Derrick; Ravel, Jacques; Tettelin, Hervé; Ren, Qinghu; Read, Tim; DeBoy, Robert T.; Seshadri, Rekha; Salzberg, Steven L.; Jensen, Harald B.; Birkeland, Nils-Kåre; Nelson, William C.; Dodson, Robert J.; Grindhaug, Svenn Helge; Holt, Ingeborg; Eidhammer, Ingvar; Jonassen, Inge; Vanaken, Susan; Utterback, Terry; Feldblyum, Tamara V.; Fraser, Claire M.; Lillehaug, Johan; Eisen, Jonathan A. (Peer reviewed; Journal article, 2004-09-21)Methanotrophs are ubiquitous bacteria that can use the greenhouse gas methane as a sole carbon and energy source for growth, thus playing major roles in global carbon cycles, and in particular, substantially reducing ... -
A glimpse of the prokaryotic diversity of the Large Aral Sea reveals novel extremophilic bacterial and archaeal groups
Shurigin, Vyacheslav; Hakobyan, Anna; Panosyan, Hovik; Egamberdieva, Dilfuza; Davranov, Kakhramon; Birkeland, Nils-Kåre (Peer reviewed; Journal article, 2019)During the last five decades, the Aral Sea has gradually changed from a saline water body to a hypersaline lake. Microbial community inhabiting the Aral Sea has been through a succession and continuous adaptation during ... -
Global Biogeographic Distribution Patterns of Thermoacidophilic Verrucomicrobia Methanotrophs Suggest Allopatric Evolution
Erikstad, Helge Andre; Ceballos, Ruben Michael; Smestad, Natalie Bennett; Birkeland, Nils-Kåre (Peer reviewed; Journal article, 2019)Thermoacidophilic methane-oxidizing Verrucomicrobia of the candidate genus Methylacidiphilum represent a bacterial taxon adapted to highly acidic (pH 1–4) and moderate temperature (∼65∘C) methane-containing geothermal ... -
Stimulation of MCM helicase activity by a Cdc6 protein in the archaeon Thermoplasma acidophilum
Haugland, Gyri Teien; Shin, J.H.; Birkeland, Nils-Kåre; Kelman, Z. (Peer reviewed; Journal article, 2006-11-15)Replicative DNA helicases are ring-shaped hexamers that play an essential role in chromosomal DNA replication. They unwind the two strands of the duplex DNA and provide the single-stranded (ss) DNA substrate for the ... -
SulfoSYS (Sulfolobus Systems Biology): towards a silicon cell model for the central carbohydrate metabolism of the archaeon Sulfolobus solfataricus under temperature variation
Albers, Sonja-Verena; Birkeland, Nils-Kåre; Driessen, Arnold J. M.; Gertig, Susanne; Haferkamp, Patrick; Klenk, Hans-Peter; Kouril, Theresa; Manica, Andrea; Pham, Trong K.; Ruoff, Peter; Schleper, Christa Maria; Schomburg, Dietmar; Sharkey, Kieran J.; Siebers, Bettina; Sierocinski, Pawel; Steuer, Ralf; van der Oost, John; Westerhoff, Hans V.; Wieloch, Patricia; Wright, Philip C.; Zaparty, Melanie (Peer reviewed; Journal article, 2009)SulfoSYS (Sulfolobus Systems Biology) focuses on the study of the CCM (central carbohydrate metabolism) of Sulfolobus solfataricus and its regulation under temperature variation at the systems level. In Archaea, carbohydrates ... -
Thermoplasma acidophilum Cdc6 protein stimulates MCM helicase activity by regulating its ATPase activity
Haugland, Gyri Teien; Sakakibara, N; Pey, Angel; Rollor, Clair R; Birkeland, Nils-Kåre; Kelman, Zvi (Peer reviewed; Journal article, 2008-08-30)The minichromosome maintenance (MCM) proteins are thought to function as the replicative helicases in archaea. In most archaeal species studied, the interaction between MCM and the initiator protein, Cdc6, inhibits helicase ...