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Ida Helene Steen's picture

Ida Helene Steen

Professor
  • E-mailIda.Steen@uib.no
  • Phone+47 55 58 83 75
  • Visitor Address
    Thormøhlens gate 53 A/B
  • Postal Address
    Postboks 7803
    5020 Bergen

The overall theme in my research is to understand the physiology of microorganisms living in deep-sea hydrothermal vent systems by the use of culturing, molecular biology, biochemistry and geochemistry.

Specific questions that I address are:

What is the diversity of energy metabolisms of hydrothermal vents microorganisms?

How do they link the cycling of carbon, nitrogen and sulfur in the system?

Do they have enzymes useful in biotechnology?

Current PhD and master students  (main or co- supervisor)

PhD-candidate Francesca Vulcano (UiB). Short chain hydrocarbon degraders in hydrothermal vents systems on the Arctic Mid-Ocean Ridge.

PhD-candidate Petra Hribovsek (UiB). Investigating the ecology, evolution and metabolism of novel deep-sea hydrothermal lineages.

PhD-candidate Victora Røyseth (UiB). Isolation and enzyme characterization of proteolytic hydrothermal vent microorganisms

Graduated

PhD Hasan Arsin (UiB, NorZymeD). Sequence-based enzyme discovery from marine microbial biodiversity: Multiple approaches for the heterologous expression of genes in Escherichia coli - 2021

MSc Ida-Marie Lervåg. Characterization of novel viral proteins - A potential for bioprospecting - 2019

MSc Hannah Babel. Metabolic properties of hyperthermophilic sulfate-reducing archaea of the genus Archaeoglobusin deep-sea hydrothermal vent systems -2019

PhD Anders Schouw (UiB, Biogoldmine). Isolation and genome analysis of Vallitalea guaymasensis L81; energy metabolism, syntrophy and applications - 2018

PhD Jan Vander Roost (UiB, CGB). Iron oxidizing microorganisms at the Jan Mayen hydrothermal vent fields - 2018

PhD Sven Le Moine Bauer (UiB, CGB). Impact of environmental parameters and dispersal on microbial communities in hydrothermal areas of the Nordic Seas -2017

Msc Andreas Gilje Sjøberg. Physiological characterization of a novel strain within Rhodobacteraceae, isolated from a biofilm sample on a barite chimney at the Loki´s Castle Vent Field. - 2016

PhD Juliane Wissuwa (UiB, Biogoldmine). The Arctic mid-Ocean Ridge Vent Fields - A valuable Resource for Marine Bioprospecting? -2016

MSc Sepideh Mostafavi.Metagenome-based analysis of the functional potential of a marine sediment community dominated by ANME-2c. -2015

MSc Sophie Radeke. Diversity, function and interactions of anaerobic methanotrophs in Loki ́s Castle Vent Field. -2015

MSc Victoria Røyseth. Isolering og fysiologisk karakterisering av Marinitoga sp. stamme 2PyrY55-1ᵀ. -2015

PhD William P. Hocking (UiB). Energy conservation mechnisms in the sulfate respiring  archaeon Archaeoglobus fulgidus VC16-assessed by transcriptome analyses and comparative genomics. -2015

PhD Anita-Elin Fedøy (UiB). Structure-function analysis of isocitrate dehydrogenase subfamily II: Adaptations to hot and cold –2014

PhD Steffen L Jørgensen (UiB, CGB). Linking microbial community structure and geochemistry in deep-sea sediments - 2013

PhD Irene Roalkvam (UiB, VISTA). Diversity, stratification and in situ metabolism of anaerobic methanotrophic archaea in Nyegga cold seeps  - 2012

MSc Elisabeth Machteld Biersma. Microbial diversity and function associated with a black smoker from Loki´s Castle vent field. - 2012

MSc Carina Magnussen. Genekspresjon av karbonmonoksid dehydrogenase/acethyl-CoA syntase komplekset og sat-ORF2-aprBA operonet i Arhcaeoglobus fulgidus. - 2010

MSc Irene Roalkvam. Proteomikkstudier av den sulfatreduserende hypertermofile arkéen Archaeoglobus fulgidus - 2008

MSc Solveig Hoem. Diversitet og utbredelse av sulfatreduserende og svoveloksiderende prokaryoter i hydrothermale miljø.  - 2008

PhD Runar Stokke (UiB). Isocitrate dehydrogenase from extremophiles: Molecular adaptations to high temperatures. - 2007

MSc William P. Hocking. Kinetic characterization revealing a possible NADP substrate inhibition mechanism in isocitrate dehydrogenase of the hyperthermophilic archaeon Aeropyrum pernix. - 2007

Academic article
  • Show author(s) (2021). Exploring codon adjustment strategies towards Escherichia coli-based production of viral proteins encoded by HTH1, a novel prophage of the marine bacterium Hypnocyclicus thermotrophus. Viruses.
  • Show author(s) (2021). Adaptive evolution of viruses infecting marine microalgae (haptophytes), from acute infections to stable coexistence. Biological Reviews. 1-16.
  • Show author(s) (2020). “Candidatus Ethanoperedens,” a thermophilic genus of archaea mediating the anaerobic oxidation of ethane. mBio. 1-18.
  • Show author(s) (2020). Tailoring hydrothermal vent biodiversity towards improved biodiscovery using a novel in-situ enrichment strategy. Frontiers in Microbiology.
  • Show author(s) (2019). Profundibacter amoris gen. nov., sp. nov., a new member of the Roseobacter clade isolated from Loki's Castle Vent Field on the Arctic Mid-Ocean Ridge. International Journal of Systematic and Evolutionary Microbiology. 975-981.
  • Show author(s) (2019). Production, characterization, and application of an alginate lyase, AMOR_PL7A, from hot vents in the Arctic mid-ocean ridge. Journal of Agricultural and Food Chemistry. 2936-2945.
  • Show author(s) (2019). Me, myself and I -Teachers’ self-motivation and sense of responsibility determine the use of active learning methods. Nordic Journal of STEM Education. 55-59.
  • Show author(s) (2019). Identification and characterization of a hyperthermophilic GH9 cellulase from the Arctic Mid-Ocean Ridge vent field. PLOS ONE.
  • Show author(s) (2019). Discovery of a Thermostable GH10 Xylanase with Broad Substrate Specificity from the Arctic Mid-Ocean Ridge Vent System. Applied and Environmental Microbiology. 1-16.
  • Show author(s) (2018). Water masses and depth structure prokaryotic and T4-like viral communities around hydrothermal systems of the Nordic Seas. Frontiers in Microbiology. 1-17.
  • Show author(s) (2018). Genome analysis of Vallitalea guaymasensis strain L81 isolated from a deep-sea hydrothermal vent system. Microorganisms.
  • Show author(s) (2018). Energy landscapes in hydrothermal chimneys shape distribution of primary producers. Frontiers in Microbiology.
  • Show author(s) (2018). Distribution patterns of iron-oxidizing Zeta- and Beta-Proteobacteria from different environmental settings of the Jan Mayen vent fields. Frontiers in Microbiology.
  • Show author(s) (2018). Decoding the Ocean’s Microbiological Secrets for Marine Enzyme Biodiscovery. FEMS Microbiology Letters.
  • Show author(s) (2017). Determinants and Prediction of Esterase Substrate Promiscuity Patterns. Journal of the American Chemical Society. 225-234.
  • Show author(s) (2017). Complete genome sequence of Lutibacter profoundi LP1T isolatet from an Arctic deep-sea hydrothermal vent system. Standards in Genomic Sciences. 1-11.
  • Show author(s) (2016). The missing link in ABS: The relationship between resource and product. Environmental Policy and Law. 227-237.
  • Show author(s) (2016). Novel barite chimneys at the Loki´s Castle vent field shed light on key factors shaping microbial communities and functions in hydrothermal systems. Frontiers in Microbiology.
  • Show author(s) (2016). Marinitoga arctica sp. Nov., a thermophilic, anaerobic heterotroph isolated from a Mid-Ocean Ridge vent field. International Journal of Systematic and Evolutionary Microbiology. 5070-5076.
  • Show author(s) (2016). Lutibacter profundi sp. nov., isolated from a deep-sea hydrothermal system on the Arctic Mid-Ocean Ridge and emended description of the genus Lutibacter. International Journal of Systematic and Evolutionary Microbiology. 2671-2677.
  • Show author(s) (2016). Isolation and complete genome sequence of the thermophilic Geobacillus sp. 12AMOR1 from an Arctic deep-sea hydrothermal vent site. Standards in Genomic Sciences. 1-12.
  • Show author(s) (2016). Abyssivirga alkaniphila gen. nov., sp. nov., an alkane-degrading, anaerobic bacterium from a deep-sea hydrothermal vent system, and emended descriptions of Natranaerovirga pectinivora and Natranaerovirga hydrolytica. International Journal of Systematic and Evolutionary Microbiology. 1724-1734.
  • Show author(s) (2015). Physiological and genomic characterization of Arcobacter anaerophilus IR-1 reveals new metabolic features in Epsilonproteobacteria. Frontiers in Microbiology.
  • Show author(s) (2015). Hypnocyclicus thermotrophus gen. Nov., sp. nov. isolated from a microbial mat in a hydrothermal vent field. International Journal of Systematic and Evolutionary Microbiology. 4521-4525.
  • Show author(s) (2015). Functional interactions among filamentous Epsilonproteobacteria and Bacteroidetes in a deep-sea hydrothermal vent biofilm. Environmental Microbiology. 4063-4077.
  • Show author(s) (2015). Energy landscapes shape microbial communities in hydrothermal systems on the Arctic Mid-Ocean Ridge. The ISME Journal. 1593-1606.
  • Show author(s) (2015). Assessment of the carbon monoxide metabolism of the hyperthermophilic sulfate-reducing archaeon Archaeoglobus fulgidus VC-16 by comparative transcriptome analyses. Archaea. 12 pages.
  • Show author(s) (2014). Modeling of heavy nitrate corrosion in anaerobe aquifer injection water biofilm: A case study in a flow rig. Environmental Science and Technology. 8627-8635.
  • Show author(s) (2014). Microbial community structure and functioning in marine sediments associated with diffuse hydrothermal venting assessed by integrated meta-omics. Environmental Microbiology. 2699-2710.
  • Show author(s) (2014). Identification of key components in the energy metabolism of Archaeoglobus fulgidus by transcriptome analyses. Frontiers in Microbiology.
  • Show author(s) (2013). The versatile in situ gene expression of an Epsilonproteobacteria-dominated biofilm from a hydrothermal chimney. Environmental Microbiology Reports. 282-290.
  • Show author(s) (2013). Complete genome sequence of the thermophilic and facultatively chemolithoautotrophic sulfate reducer Archaeoglobus sulfaticallidus PM70-1T. Microbiology Resource Announcements (MRA).
  • Show author(s) (2012). The complex structures of isocitrate dehydrogenase from Clostridium thermocellum and Desulfotalea psychrophila support a new active site locking mechanism. FEBS Open Bio.
  • Show author(s) (2012). Integrated metagenomic and metaproteomic analyses of an ANME-1-dominated community in marine cold seep sediments. Environmental Microbiology. 1333-1346.
  • Show author(s) (2012). Fine-scale community structure analysis of ANME in Nyegga sediments with high and low methane flux. Frontiers in Microbiology. 1-13.
  • Show author(s) (2012). Finding a needle in the virus metagenome haystack - micro-metagenome analysis captures a snapshot of the diversity of a bacteriophage armoire. PLOS ONE. 13 pages.
  • Show author(s) (2012). Correlating microbial community profiles with geochemical data in highly stratified sediments from the Arctic Mid-Ocean Ridge. Proceedings of the National Academy of Sciences of the United States of America. E2846-E2855.
  • Show author(s) (2011). New insight into stratification of anaerobic methanotrophs in cold seep sediments. FEMS Microbiology Ecology. 233-243.
  • Show author(s) (2010). Thermodynamic and kinetic stability of a large multi-domain enzyme from the hyperthermophile Aeropyrum pernix. Extremophiles. 213-223.
  • Show author(s) (2008). The phylogeny of the aromatic amino acid hydroxylases revisited by characterizing phenylalanine hydroxylase from Dictyostelium discoideum. Gene. 86-92.
  • Show author(s) (2007). Thermal stability of isocitrate dehydrogenase from Archaeoglobus fulgidus studied by crystal structure analysis and engineering of chimers. Extremophiles.
  • Show author(s) (2007). Thermal stability and biochemical properties of isocitrate dehydrogenase from the thermoacidophilic archaeon Thermoplasma acidophilum. Extremophiles. 397-402.
  • Show author(s) (2007). Structure of phenylalanine hydroxylase from Colwellia psychrerythraea 34H, a monomeric cold active enzyme with local flexibility around the active site and high overall stability. Journal of Biological Chemistry.
  • Show author(s) (2007). Structural and functional properties of isocitrate dehydrogenase from the psychrophilic bacterium Desulfotalea psychrophila reveal a cold-active enzyme with an unusual high thermal stability. Journal of Molecular Biology (JMB). 130-149.
  • Show author(s) (2007). Biochemical characterization of isocitrate dehydrogenase from Methylococcus capsulatus reveals a unique NAD(+)-dependent homotetrameric enzyme. Archives of Microbiology.
  • Show author(s) (2006). The crystal structure of a hyperthermostable subfamily II isocitrate dehydrogenase from Thermotoga maritima. The FEBS Journal. 2851-2868.
  • Show author(s) (2005). Isocitrate dehydrogenase from the hyperthermophile Aeropyrum pernix: X-ray structure analysis of a ternary enzyme-substrate complex and thermal stability. Journal of Molecular Biology (JMB). 559-577.
  • Show author(s) (2002). Identification of cofactor discrimination siten in NAD-isocitrate dehydrogenase from Pyrococcus furious. Archives of Microbiology. 297-300.
  • Show author(s) (2001). Differences in the oligomeric state of the LDH-like L-MalDH from the hyperthermophilic archaea Methanococcus jannaschii and Archaeoglobus fulgidus. Biochemistry. 10310-10316.
  • Show author(s) (2001). Comparison of isocitrate dehydrogenase from three different hyperthermophiles reveals differences in thermostability, cofactor specificity, oligomeric state and phylogenetic affiliation. Journal of Biological Chemistry. 43924-43931.
  • Show author(s) (2001). Archaeoglobus fulgidus isocitrate dehydrogenase, malate dehydrogenase and glutamate dehydrogenase. Methods in Enzymology. 13-26.
  • Show author(s) (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. FEMS Microbiology Letters. 469-474.
  • Show author(s) (1998). Desulfobulbus rhabdoformis sp. nov., a sulfate reducer from a water-oil separation system. International Journal of Systematic Bacteriology. 469-474.
  • Show author(s) (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]. FEMS Microbiology Letters.
  • Show author(s) (1997). Purification and properties of an extremely thermostable NADP-specific glutamate dehydrogenase from Archaeoglobus fulgidus. Archives of Microbiology. 536-539.
  • Show author(s) (1997). Properties and primary structure of a thermostable L-malate dehydrogenase from Archaeoglobus fulgidus. Archives of Microbiology. 59-67.
  • Show author(s) (1997). Biochemical and phylogenetic characterization of isocitrate dehydrogenase from a hyperthermophilic archaeon, Archaeoglobus fulgidus. Archives of Microbiology. 412-420.
Lecture
  • Show author(s) (2020). A perspective from Bergen: Deep Ocean bioprospecting, metagenomics and public databases.
  • Show author(s) (2019). Summary of research activities WP1 - Environmental sampling.
  • Show author(s) (2019). Marine bioprospecting.
  • Show author(s) (2018). Forskningsaktiviteter og infrastruktur ved KG Jebsen Senter for Dyphavsforskning og Havlaboratoriet.
  • Show author(s) (2018). Biodiscovery and bioprospecting activities at KG Jebsen Centre for Deep-Sea Research.
  • Show author(s) (2017). Value chains and innovation of life in deep-sea hydrothermal vents - the InMare and Virus-X projects.
  • Show author(s) (2017). The Virus-X project.
  • Show author(s) (2017). Marine bioprospecting activities at KG Jebsen Centre for Deep Sea Research.
  • Show author(s) (2017). Black smokers-Extreme life conditions and applications.
  • Show author(s) (2015). The value of biodiversity.
  • Show author(s) (2015). Exploitation of genetic resources from the Arctic mid-ocean ridge vent fields in the norwegian industry.
  • Show author(s) (2015). An enzyme discovery and expression pipeline for the conversion of marine biomasses.
  • Show author(s) (2014). Towards a framework for analyses of how energy landscapes shape microbial communities in deep-sea hydrothermal systems.
  • Show author(s) (2014). Metagenomic study of a filamentous microbial mat from the Loki´s Castle Vent Field.
  • Show author(s) (2014). Biotechnology at GeoBIO-SFF.
Popular scientific lecture
  • Show author(s) (2019). Separasjon av enzymer for bruk i bioteknologi.
  • Show author(s) (2019). Microbial life in deep-sea hydrothermal vent systems.
  • Show author(s) (2017). Et innovasjonsdykk i dyphavet.
  • Show author(s) (2017). Erfaring med InMare.
  • Show author(s) (2016). Marin Bioprospektering.
  • Show author(s) (2014). Mikrobielt liv i ekstreme miljø.
  • Show author(s) (2013). Diversitet, funksjon og bioteknologisk anvendelse av mikroorganimser i dyp-marine varme kilder.
  • Show author(s) (2012). Microbial life in the Arctic Mid-Ocean Vent Fields.
  • Show author(s) (1997). Isocitrate dehydrogenase from the sulfate reducers Archaeoglobus fulgidus and Desulfobacter vibrioformis.
Academic lecture
  • Show author(s) (2019). Use of active learning methods and technologies – obstacles, incentives, and bottlenecks.
  • Show author(s) (2019). Conductive Cooling and Microbial Carbon Transformations in Diffuse Hydrothermal Fluids at Loki’s Castle.
  • Show author(s) (2018). Biodiscovery and bioprospecting of Norwegian deep-sea hydrothermal vent systems.
  • Show author(s) (2017). Light and depth - main drivers of marine virus diversity and dynamics in the Arctic - Metagenomic analysis of total viral assemblages from surface to the deep .
  • Show author(s) (2017). Bioprospecting of enzymes for processing lignocellulosic biomass.
  • Show author(s) (2016). Biodiscovery and bioprospecting of molecules from deep-sea organisms.
  • Show author(s) (2015). Isolation, characterization and genome analysis of a nitrate reducing Arcobacter sp. isolated from saline aquifer water.
  • Show author(s) (2015). Isolation and characterization of a novel syntrophic alkane degrading bacterium from the Loki's castle hydrothermal vent field.
  • Show author(s) (2015). Exploitation of genetic resources from the Arctic mid-ocean ridge vent fields in the norwegian industry.
  • Show author(s) (2015). Capturing of microbial dark matter in deep sea hydrothermal vents by using in situ colonizers.
  • Show author(s) (2014). Use of metatranscriptomics, amplicon pyrosequencing and thermodynamics to assess how microbial communities are shaped by energy availability.
  • Show author(s) (2014). Microbial communities associated with low-temperature venting barite chimneys in the Loki´s Castle black smoker field.
  • Show author(s) (2014). Microbial communities associated with low-temparture venting barite chimneys in the Loki´s Castle black smoker field.
  • Show author(s) (2014). Energy landscapes shape microbial communities and the distribution of biosignatures in hydrothermal systems on the Arctic Mid-Ocean Ridge.
  • Show author(s) (2014). Correlating abundances of archaeal lineages and geochemical parameters in deep-sea marine sediments.
  • Show author(s) (2013). Thermodynamic constraints on the microbial ecology and biogeochemical cycling in deep-sea hydrothermal systems.
  • Show author(s) (2013). Microbial life in the Arctic Mid-Ocean Vent Fields.
  • Show author(s) (2013). Hvordan oppdage nye enzymer?
  • Show author(s) (2013). Formation of barite chimneys at low-temperature hydrothermal venting: evidence for complex geobio-interactions.
  • Show author(s) (2013). Exposure the biotechnological potential in microbial communities at the Arctic Mid-Ocean Ridge Vent Fields.
  • Show author(s) (2013). Correlating microbial community structure with geochemical data in sediments from the Arctic Mid-Ocean Ridge.
  • Show author(s) (2013). Assessment of the biotechnological potential of AMOR:(meta)genomics, protein expression and characterisation.
  • Show author(s) (2012). Metagenomics of arctic hydrothermal vent biofilms.
  • Show author(s) (2012). Metagenomics at arctic deep-sea hydrothermal vent systems.
  • Show author(s) (2012). Exploring Metagenomes.
  • Show author(s) (2012). Correlating geochemical data with microbial community structure in highly stratified sediments from the Arctic mid-ocean ridge.
  • Show author(s) (2011). Microbial processes and biomineralisation associated with low-temperature venting and formation of barite chimneys at Loki's Castle hydrothermal field.
  • Show author(s) (2010). Microbial life associated with low-temperature hydrothermal venting and formation of barite chimneys at Loki’s Castle vent field.
  • Show author(s) (2010). Microbial communities in cold seeps, Nyegga, Mid-Norwegian shelf.
  • Show author(s) (2010). Metaproteomic Analysis of a Chemosynthetic Hydrothermal Vent Community Reveals Insights into Key-Metabolic Processes.
  • Show author(s) (2010). Investigations of a novel fauna from hydrothermal vents along the Arctic Mid-Ocean Ridge (AMOR).
  • Show author(s) (2010). Geobiology of hydrothermal vent fields in the Norwegian-Greenland Sea.
  • Show author(s) (2010). Anaerobic methanotrophs - from cold seeps to hot vents.
  • Show author(s) (2010). A variety of microbial mats cover the chimney walls of the Loki's Castle hydrothermal field.
  • Show author(s) (2009). The extreme environments of the active seafloor seep pockmarks at Nyegga, the upper Mid-Norwegian margin: a multidisciplinary geological, biological and geochemical study.
  • Show author(s) (2009). The extreme environment of active gas hydrate bearing pockmarks at Nyegga: a multidisciplinary geological, biological and geochemical study on the Mid-Norwegian margin.
  • Show author(s) (2008). A cold-active enzyme with an unusual high thermal stability: Isocitrate dehydrogenase from the psychrophilic bacterium Desulfotalea psychrophila.
  • Show author(s) (2004). Molecular adaptation of isocitrate dehydrogenase to high temperature.
  • Show author(s) (2000). Isocitrate dehydrogenase from Aeropyrum pernix.
  • Show author(s) (1996). Purification and characterization of glutamate dehydrogenase from the thermophilic archaea Archaeoglobus fulgidus strain 7324.
  • Show author(s) (1996). L-Malate dehydrogenase from the hyperthermophilic archaeon Archaeoglobus fulgidus.
  • Show author(s) (1996). Expression of a thermostable isocitrate dehydrogenase from the hyperthermophilic Archaeoglobus fulgidus in Escherichia coli.
  • Show author(s) (1996). Expression of a thermostable isocitrate dehydrogenase from the hyperthermophilic Archaeoglobus fulgidus in Escherichia coli.
  • Show author(s) (1996). Archaeoglobus fulgidus isocitrate dehydrogenase: Purification, characterization, thermostability, genetic analysis and phylogeny.
  • Show author(s) (1996). Archaeoglobus fulgidus isocitrate dehydrogenase: Purification, characterization, thermostability genetic analysis and phylogeny.
Popular scientific article
  • Show author(s) (2016). Norske varmekilder i dyphavet - en underfundig verden full av spennende livsformer. Årbok for Universitetsmuseet i Bergen.
Feature article
  • Show author(s) (2016). Et hav av bakterier er et hav av muligheter. Bergens Tidende.
Doctoral dissertation
  • Show author(s) (2018). Isolation and genome analysis of Vallitalea guaymasensis L81; energy metabolism, syntrophy and applications.
  • Show author(s) (2016). The Arctic Mid-Ocean Ridge Vent Fields - A valuable Resource for Marine Bioprospecting?
  • Show author(s) (2015). Energy conservation mechanisms in the sulfate respiring archaeon Archaeoglobus fulgidus VC16 - assessed by transcriptome profiling and comparative genomics.
  • Show author(s) (2013). Linking microbial community structures and geochemistry in deep-sea sediments & pursuing the link between identity and function.
  • Show author(s) (2012). Diversity, stratification and in situ metabolism of anaerobic methanotrophic archaea in Nyegga cold seeps.
  • Show author(s) (2006). Isocitrate dehydrogenase from extremophiles; Molecular adaptations to high temperatures.
  • Show author(s) (1998). Isocitrate dehydrogenase from the sulfate reducers Archaeoglobus fulgidus and Desulfobacter vibrioformis:Properties, Primary structure, and Phylogeny.
Interview
  • Show author(s) (2015). Researchers to trawl ocean for new biotechnology Resources.
  • Show author(s) (2015). Organismer i havet kan være en gullgruve.
  • Show author(s) (2015). Kan tjene stort på dypvannsorganismer.
  • Show author(s) (2015). Innslag på "NRK alltid nyheter" om hvordan termostabile enzymer kan brukes i industrien.
  • Show author(s) (2015). Bakteriar frå Norskehavet kan gjere fiskeslo om til mat.
  • Show author(s) (2013). Jakter superenzymer på havbunnen.
  • Show author(s) (2013). Fiskeslo mot halsvondt i framtida.
  • Show author(s) (2013). Fiskeslo kan bli medisin.
  • Show author(s) (2013). Fiskeslo kan bli medisin.
  • Show author(s) (2013). Fiskeslo fikser gørr i halsen.
  • Show author(s) (2013). ENZYMER I INDUSTRIEN: Jakter superenzymer på havbunnen.
Museum exhibition
  • Show author(s) (2019). Kan mikroorganismer i dyphavet gjøre avfall om til mat?
Poster
  • Show author(s) (2021). Iron Oxidizers and Sheath-forming Zetaproteobacteria in Biofilms of the Newly Discovered Fåvne Hydrothermal Vent Field.
  • Show author(s) (2017). Discovery, characterization and engineering of bacterial thermostable cellulose-degrading enzymes.
  • Show author(s) (2017). Discovery of proteases for bioconversion of marine biomass.
  • Show author(s) (2017). Bioprospecting of enzymes for processing lignocellulosic biomass.
  • Show author(s) (2015). New insights into energy conservation mechanisms in the sulfate respiring archaeon Archaeoglobus fulgidus VC16.
  • Show author(s) (2015). Metagenomics-based enzyme discovery.
  • Show author(s) (2015). Isolation, characterization and genome sequencing of (hyper)thermophiles from the Arctic Mid-Ocean Ridge.
  • Show author(s) (2014). Screening of new alfa-amylases from deep-sea hydrothermal vents by multiple (meta)-genomic tools.
  • Show author(s) (2014). Microbial community changes within a chimney wall at the basalt-hosted Jan Mayen vent field (JMVF):Modeled predictions vs. Pyrosequencing data.
  • Show author(s) (2014). Isolation, characterization and genome analysis of a nitrate reducing Arcobacter sp. isolated from saline aquifer water.
  • Show author(s) (2014). Genomic sequencing analysis of a new thermophilic starch degrading Geobacillus sp. isolate from AMOR hydrothermal vent system.
  • Show author(s) (2014). Genomic sequencing analysis of a new thermophilic starch degrading Geobacilllus sp. isolate from AMOR hydrothermal vent system.
  • Show author(s) (2014). Exploring the biotechnological potential of microbial communities in the Jan Mayen Vent Fields by use of in situ incubation chambers.
  • Show author(s) (2014). Crude oil degradation to methane gas by a waste water consortium.
  • Show author(s) (2014). Comparison of microbial communities within iron-containing mats at different geochemical settings in the Jan Mayen vent field.
  • Show author(s) (2014). Automated Enzyme Function Inference in Archaea Genomes:comparison of PRIAM and EFICAZ.
  • Show author(s) (2014). An enzyme discovery and expression pipeline for the conversion of Norwegian biomasses.
  • Show author(s) (2013). Microbial monitoring of Sub Sea injection water in the North Sea.
  • Show author(s) (2013). Exploring the biotechnological potential of microbial communities in the Jan Mayen Vent Fields by use of in situ incubation chambers.
  • Show author(s) (2013). Expert system for mining and sifting novel enzyme sequences in metagenomics data.
  • Show author(s) (2013). Better handling of microbial influenced corrosion during operation.
  • Show author(s) (2012). Molecular basis for polysaccharides degradation capabilities of Desulfurococcus fermentans, a hyperthermophilic crenarchaeon.
  • Show author(s) (2012). Microbial mediated formation of low-temperature hydrothermal barite chimneys.
  • Show author(s) (2012). Metatranscriptomic and phylogenetic analysis of bacterial mats growing on chimney surfaces at the Loki´s Castle hydrothermal field.
  • Show author(s) (2012). Bacterial subfamiliy II isocitrate dehydrogenase: adaptations to low and high temperatures.
  • Show author(s) (2012). A combined SEM, isotope, and biomolecular study to unravel the formation of barite chimnneys at the Loki's Castle vent field.
  • Show author(s) (2011). High resolution community profiling of stratified sediments associated with Loki’s castle vent field at the Knipovitch spreading ridge.
  • Show author(s) (2010). Vertical variations in predominance of Thaumarchaeota and anaerobic methanotrophs in methane seep sediments.
  • Show author(s) (2010). Transcriptome analysis of Arhcaeoglobus fulgidus VC-16 grown on differential substrates.
  • Show author(s) (2010). The sulfate-methane transition zone (SMTZ) in passive and active gas hydrate bearing sediments at Nyegga on the Mid-Norwegian margin: a multidisciplinary geological, geobiological and geochemical study.
  • Show author(s) (2010). Microbial diversity in deep-sea sediments Influence of volcanism and hydrothermal activity.
  • Show author(s) (2010). Microbial community structure of biomats and chimney walls of the Loki’s Castle hydrothermal field at 73°N.
  • Show author(s) (2010). Microbial community composition in the deep-sea sediments flanking the Loki’ castle at the Knipovitch ridge system.
  • Show author(s) (2010). Metaproteomic analysis of a chemosynthetic hydrothermal vents community reveals insight into key-metabolic processes.
  • Show author(s) (2010). Detection of methanotrophic archaea in a barite chimney at Loki’s Castle, the Arctic Mid-Ocean Ridge.
  • Show author(s) (2009). Decreased expression of ATP-sulfurylase and APS-reductase in Archaeoglobus fulgidus during respiration of hydrogen with thiosulfate.
  • Show author(s) (2008). The hyperthermophilic sulfate-reducing archaeon Archaeoglobus fulgidus; a proteomics study on the shift between chemoorganoheterotrophic and chemilithoautotrophic growth.
  • Show author(s) (2008). Crystal Structure of phenylalanine hydroxylase from Colwellia psychrerythraea 34H reveals a monomeric cold active enzyme with local flexibility around the active site and high overall stability.
  • Show author(s) (2006). Biochemical characterization and structure analysis of extremophilic isocitrate dehydrogenase.
  • Show author(s) (2006). Biochemical characterization and structure analysis of extremophilic isocitrate dehydrogenase.
  • Show author(s) (2006). Biochemical and structural basis of cold-adaptation in isocitrate dehydrogenase from Desulfotalea psychrophila.
  • Show author(s) (2005). Thermostabilization of Isocitrate Dehydrogenase by Domain Swapping.
  • Show author(s) (2005). Molecular adaptations of isocitrate dehydrogenase to extreme temperatures.
  • Show author(s) (2005). Molecular Adaptation of Isocitrate Dehydrogenase to Extreme Temperatures.
  • Show author(s) (2005). 1.75 Å crystal structure of isocitrate dehydrogenase from Desulfotalea psychrophila.
  • Show author(s) (2004). Isocitrate dehydrogenases from various organisms: a model system to study structural basis of biological adaptations to extreme temperatures.
  • Show author(s) (2004). Isocitrate dehydrogenases from various organisms: a model system to study structural basis of biological adaptations to extreme temperatures.
  • Show author(s) (2004). Investigation of factors involved in thermostability of isocitrate dehydrogenase from the hyperthermophilic archaeon Aeropyrum pernix.
  • Show author(s) (1999). <I>Archaeoglobus fulgidus</I> Isocitrate Dehydrogenase, Malate Dehydrogenase and Glutamate Dehydrogenase.
Academic literature review
  • Show author(s) (2021). Going to extremes - A metagenomic journey into the dark matter of life. FEMS Microbiology Letters. 1-16.
Popular scientific chapter/article
  • Show author(s) (2015). Norske varmekilder i dyphavet. 89-95.
Brochure
  • Show author(s) (2015). Bioprospecting in the deep sea -CGB Annual report.
  • Show author(s) (2014). Novel enzymes - Biodiscovery in marine metagenomes in BTO Calendar 2014.

More information in national current research information system (CRIStin)

Current and previous projects:

2021-2024 Life at the limits: diversity, adaptation strategies and bioprospecting of microbes living in Arctic deep sea habitats (IN-DEPTH), EEA-Norway grant (P.I. Tadeusz Kaczorowski University of Gdansk). P.I. UiB.

2021-2024 DeepSeaQuence:Uncovering the metabolic secrets and capacity of Arctic deep-sea hydrothermal vent microbiomes. NFR. Co-investigator. 

2021-2024 EcoSafe: Environmental risk studies towards sustainable seabed mineral mining on the Mid-Ocean Ridge in Norway. Co-investigator. 

2021-2026 Centre for Deep-Sea Research (Trond Mohn foundation). Theme leader "Bioresources" and member of leader group.

2019-2023 HyPOD: Hydrothermal Production of Organic molecules: carbon transformation and Decomposition in ocean crust fluids. Frinatek. P.I. Ass. prof E. Reeves, UiB. Role in project - partner. 

2018-2021 HACON: Hot vents in an ice-covered ocean: the role of the Arctic as a connectivity pathway betweeen ocean basins. Frinatek. P.I. Dr. Eva Ramirez-Llodra, NIVA. Role in project, partner - microbiology. 

2017-2021 KG Jebsen centre for Deep-Sea Research. (leader group)

2016-2021 VIROVAC: Impact of appendicularia on the ecology of marine viruses. Frimedbio. P. I. Jessica L Ray, Norce. Partner.

2016-2019 Virus-X: Viral Metagenomics for innovation Value. H2020. Partner/WP-leader

2015-2018 INMARE: Industrial Applications of Marine Enzymes: Innovative screening and expression platforms to discover and use the functional protein diversity from the sea.  H2020. Partner: More info.

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2012-2017 NorZymeD: Enzyme development for Norwegian biomass - mining Norwegian biodiversity for seizing Norwegian oppotunities in the bio-based economy. NFR

2012-2015 Better handling of microbial induced corrosion during operation. VISTA 

2011-2016 Mining of a Norwegian biogoldmine through metagenomics. 

2009-2012 Metagenomics and metaproteomics of deep arctic hydrothermal systems. VISTA

2006-2007 Optimalisering av proteomikkverktøy for stuider av fysiologiske prosesser hos mikoorganismer i biogeokjemiske sykluser i ekstreme miljl. Meltzer 

2001-2002 Thermodynamics and structure of thermostable isocitrate dehydrogenase. Postdoc, Karolinska Institute. NorFa. 

1998-2001 Structural and phylogenetic aspects of isocitrate dehydrogenase. NFR.

Syntrophic conversion of amino acids to methane in hydrothermal vent systems -The main focus of this master project will be to reveal the biochemistry behind syntrophic growth on amino acids of Vallitalea guaymasensis L81 and Methanoplanus limicola by cultivation experiments, proteomics and protein chemistry. Vallitalea guaymasensis L81 is a mesophilic, fermentative microorganisms isolated from the Loki´s Castle vent field.

Sulfate reducing bacteria involved in syntrophic conversion of short chain hydrocabons - The main focus of this master project will be to analyze reconstructed genomes of putative sulfate reducing partners involved in anaerobic conversions of short chain hydrocarbons. Based on metabolic predictions, enrichment cultures will be intitiated and growth followed using geochemical and microbiological methods. The main study area will be the Loki´s Castle vent field.

Research groups