soil organic matter

  • Open Access
    High Genetic Potential for Proteolytic Decomposition in Northern Peatland Ecosystems
    Microbial Ecology
    High Genetic Potential for Proteolytic Decomposition in Northern Peatland Ecosystems

    Nitrogen (N) is a common limitation on primary productivity, and its source remains unresolved in northern peatlands that are vulnerable to environmental change. Decomposition of complex organic matter into free amino acids has been proposed as an important N source, but the genetic potential of microorganisms mediating this process has not been examined. Such information can inform possible responses of northern peatlands to...

    Emily B. Graham, Fan Yang, Sheryl Bell, Kirsten S. Hofmockel
  • Open Access
    Influence of Ammonium on Formation of Mineral-Associated Organic Carbon by an Ectomycorrhizal Fungus
    Environmental Microbiology
    Influence of Ammonium on Formation of Mineral-Associated Organic Carbon by an Ectomycorrhizal Fungus

    Nitrogen (N) availability plays a critical role in the cycling and storage of soil organic matter (SOM). However, large uncertainties remain in predicting the net effect of N addition on soil organic carbon (C) storage due to the complex interactions between organic matter, microbial activity, and mineral particles that determine the formation of stable SOM. Here, we attempted to disentangle the effects of ammonium on these interactions...

    Tao Wang, Zhaomo Tian, Anders Tunlid, Per Persson
  • Environmental Microbiology
    High Microbial Diversity Promotes Soil Ecosystem Functioning
    Pierre-Alain Maron, Amadou Sarr, Aurore Kaisermann, Jean Lévêque, Olivier Mathieu, Julien Guigue, Battle Karimi, Laetitia Bernard, Samuel Dequiedt, Sébastien Terrat, Abad Chabbi, Lionel Ranjard
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