Ida Helene Steen
Researcher
Department of Biology
Centre for Geobiology
Title: Researcher
Phone: +47 55 58 83 75
E-mail: Ida.Steen@bio.uib.no
Visiting address: Thormøhlensgt. 53 A/B
My research has focused on molecular adaptations of enzymes to extreme high or low temperatures using isocitrate dehydrogenase as model enzyme. Since, CGB was established my research has developed into studying how microorganisms adapt to environmental changes and covers studies of microbial community structure and function as well as adaptations of selected model organisms to changing environmental conditions. Specifically, I focus on adaptive and regulatory processes in response to geochemical constraints in chemosynthetic microbial communities in cold seeps and hydrothermal systems. Furthermore, regulatory processes in archaea are a focus, using the sulphate-reducing archaeon Archaeoglobus fulgidus as a model organism. Recently, proteomic and transcriptomic tools have been applied in order to reveal how this organism responds to changes available nutrient in its environments.