Defining the Sphagnum Core Microbiome across the North American Continent Reveals a Central Role for Diazotrophic Methanotrophs in the Nitrogen and Carbon Cycles of Boreal Peatland Ecosystems

Author:

Kolton Max12ORCID,Weston David J.3,Mayali Xavier4ORCID,Weber Peter K.4,McFarlane Karis J.4,Pett-Ridge Jennifer4ORCID,Somoza Mark M.567,Lietard Jory5,Glass Jennifer B.2ORCID,Lilleskov Erik A.8,Shaw A. Jonathan9,Tringe Susannah1011,Hanson Paul J.3,Kostka Joel E.1212ORCID

Affiliation:

1. School of Biological Sciences, Georgia Institute of Technology, Atlanta, Georgia, USA

2. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, Georgia, USA

3. Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA

4. Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California, USA

5. Department of Inorganic Chemistry, University of Vienna, Vienna, Austria

6. Leibniz Institute for Food Systems Biology and Chair of Food Chemistry and Molecular and Sensory Science, Technical University of Munich, Freising, Germany

7. Chair of Food Chemistry and Molecular and Sensory Science, Technical University of Munich, Freising, Germany

8. Northern Research Station, USDA Forest Service, Houghton, Michigan, USA

9. Biology Department, Duke University, Durham, North Carolina, USA

10. DOE Joint Genome Institute, Lawrence Berkeley National Laboratory, Berkeley, California, USA

11. Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA

12. Center for Microbial Dynamics and Infection, Georgia Institute of Technology, Atlanta, Georgia, USA

Abstract

Nitrogen availability frequently limits photosynthetic production in Sphagnum moss-dominated high-latitude peatlands, which are crucial carbon-sequestering ecosystems at risk to climate change effects. It has been previously suggested that microbial methane-fueled fixation of atmospheric nitrogen (N 2 ) may occur in these ecosystems, but this process and the organisms involved are largely uncharacterized.

Funder

National Science Foundation

Publisher

American Society for Microbiology

Subject

Virology,Microbiology

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