• Evolution of temperature optimum in Thermotogaceae and the prediction of trait values of uncultured organisms 

      Dahle, Håkon; Hannisdal, Bjarte; Steinsbu, Bjørn Olav; Ommedal, Hege; Einen, Jørn; Jensen, Sigmund; Larsen, Øyvind; Øvreås, Lise; Norland, Svein (Peer reviewed; Journal article, 2011-06-03)
      Quantitative characterization of the mode and rate of phenotypic evolution is rarely applied to prokaryotes. Here, we present an analysis of temperature optimum (Topt) evolution in the thermophilic family Thermotogaceae, ...
    • Nitrifier abundance and diversity peak at deep redox transition zones 

      Zhao, Rui; Hannisdal, Bjarte; Mogollon, Josè M.; Jørgensen, Steffen Leth (Peer reviewed; Journal article, 2019-06-14)
      More than half of the global ocean floor is draped by nutrient-starved sediments characterized by deep oxygen penetration and a prevalence of oxidized nitrogen. Despite low energy availability, this habitat hosts a vast ...