Ida Helene Steen's picture

Ida Helene Steen

  • E-mailIda.Steen@uib.no
  • Phone+47 55 58 83 75
  • Visitor Address
    Thormøhlensgt. 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-student Anders Schouw (UiB, Biogoldmine).Biogenic conversion of higher hydrocarbons to methane - New isolates, functional insights and models.

PhD-student Jan Vander Roost (UiB, CGB). Iron oxidizing bacteria at the Jan Mayen hydrothermal vent field. 

PhD-student Hasan Arsin (UiB, NorZymeD). Industrial application of proteases deriving from extreme environments.


PhD Sven Le Moine Bauer. 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. 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

Reports and theses
  • Marques, Ana Filipa Alfaia; Pedersen, Rolf B.; Thorseth, Ingunn Hindenes; Baumberger, Tamara; Roerdink, Desiree; Jørgensen, Steffen Leth; Økland, Ingeborg Elisabet; Olsen, Bernd; Steen, Ida Helene; Hamelin, Cedric; Denny, Alden Ross; Bretel, Patrice. 2015. Arctic Mid-Ocean Ridge, NORMAR/CGB 2015 Test Cruise, R/V G.O.SARS, Senter for Geobiologi. Universitetet i Bergen, Bergen, Norway. 55 pages.
  • Steen, Ida Helene. 1998. Isocitrate dehydrogenase from the sulfate reducers Archaeoglobus fulgidus and Desulfobacter vibrioformis:Properties, Primary structure, and Phylogeny.

More information in national current research information system (CRIStin)

Ursula Düren. Syntrophic conversion of protein-rich compounds to methane - fall 2017 

Francesca Vulcano. Syntrophic conversion of hydrocarbons to methane - spring 2017

Florian Bredy. Characterization of Hypnocyclicus thermotrophus gen. nov. sp. nov., a sugar fermenting bacterium from the Seven Sisters hydrothermal vent field - 2014/2015

Current and previous projects:

2016-2019: Virus-X: Viral Metagenomics for innovation Value. H2020. Parther/WP-leader: 496250 EUR


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: 220000 EUR More info.

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 2.4 mill

2011-2016: Mining of a Norwegian biogoldmine through metagenomics. NFR 8.0 mill

2009-2012: Metagenomics and metaproteomics of deep arctic hydrothermal systems. VISTA. 2.14 mill

2006-2007: Optimalisering av proteomikkverktøy for stuider av fysiologiske prosesser hos mikoorganismer i biogeokjemiske sykluser i ekstreme miljl. Meltzer 460.000 NOK

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

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