Blar i forfatter "Knittel, Katrin"

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    • Life on the edge: Active microbial communities in the Kryos MgCl2-brine basin at very low water activity 

      Steinle, Lea; Knittel, Katrin; Felber, Nicole; Casalino, Claudia; de Lange, Gert; Tessarolo, Chiara; Stadnitskaia, Alina; Sinninghe Damsté, Jaap S.; Zopfi, Jakob; Lehmann, Moritz F.; Treude, Tina (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-04-17)
      The Kryos Basin is a deep-sea hypersaline anoxic basin (DHAB) located in the Eastern Mediterranean Sea (34.98°N 22.04°E). It is filled with brine of re-dissolved Messinian evaporites and is nearly saturated with MgCl<sub>2</sub>-equivalents, which makes this habitat extremely challenging for life. The strong density difference between the anoxic brine and the overlying oxic Mediterranean seawater ...

    • Seasonal shifts of microbial methane oxidation in Arctic shelf waters above gas seeps 

      Gründger, Friederike; Probandt, David; Knittel, Katrin; Carrier, Vincent; Kalenitchenko, Dimitri; Silyakova, Anna; Serov, Pavel; Ferré, Benedicte; Svenning, Mette Marianne; Niemann, Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-07)
      The Arctic Ocean subseabed holds vast reservoirs of the potent greenhouse gas methane (CH<sub>4</sub>), often seeping into the ocean water column. In a continuously warming ocean as a result of climate change an increase of CH<sub>4</sub> seepage from the seabed is hypothesized. Today, CH<sub>4</sub> is largely retained in the water column due to the activity of methane-oxidizing bacteria (MOB) that ...