Blar i forfatter "Rainer, Edda Marie"

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    • The influence of above-ground herbivory on the response of arctic soil methanotrophs to increasing ch4 concentrations and temperatures 

      Rainer, Edda Marie; Seppey, Victor William Christophe; Hammer, Caroline; Svenning, Mette Marianne; Tveit, Alexander (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-02)
      Rising temperatures in the Arctic affect soil microorganisms, herbivores, and peatland vegetation, thus directly and indirectly influencing microbial CH<sub>4</sub> production. It is not currently known how methanotrophs in Arctic peat respond to combined changes in temperature, CH<sub>4</sub> concentration, and vegetation. We studied methanotroph responses to temperature and CH<sub>4</sub> ...

    • Methanotroph populations and CH 4 oxidation potentials in High Arctic peat are altered by herbivory induced vegetation change 

      Rainer, Edda Marie; Seppey, Victor William Christophe; Tveit, Alexander Tøsdal; Svenning, Mette Marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-08)
      Methane oxidizing bacteria (methanotrophs) within the genus <i>Methylobacter</i> constitute the biological filter for methane (CH<sub>4</sub>) in many Arctic soils. Multiple <i>Methylobacter</i> strains have been identified in these environments but we seldom know the ecological significance of the different strains. High-Arctic peatlands in Svalbard are heavily influenced by herbivory, leading to ...

    • Response and resilience of the microbial methane filter to ecosystem changes in Arctic peatlands 

      Rainer, Edda Marie (Doctoral thesis; Doktorgradsavhandling, 2022-06-30)
      <p>Climate change is a major concern in the Arctic region, as large amounts of organic carbon (C) are stored in permafrost soils and sediments. Increasing average temperatures have the potential to release that C and making it available to biologic activity. Carbon-rich, anoxic soils such as peatlands are inhabited by methanogenic archaea that can metabolize by-products of microbial C decomposition ...

    • Thermal acclimation of methanotrophs from the genus Methylobacter 

      Tveit, Alexander; Söllinger, Andrea; Rainer, Edda Marie; Didriksen, Alena; Hestnes, Anne Grethe; Motleleng, Liabo; Hellinger, Hans-Jörg; Rattei, Thomas; Svenning, Mette Marianne (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-01-18)
      Methanotrophs oxidize most of the methane (CH<sub>4</sub>) produced in natural and anthropogenic ecosystems. Often living close to soil surfaces, these microorganisms must frequently adjust to temperature change. While many environmental studies have addressed temperature effects on CH<sub>4</sub> oxidation and methanotrophic communities, there is little knowledge about the physiological adjustments ...