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Title

Recently identified microbial guild mediates soil N2O sink capacity

Publication Year

2014

Author(s)
  • Jones, Christopher M.
  • Spor, Ayme
  • Brennan, Fiona P.
  • Breuil, Marie-Christine
  • Bru, David
  • Lemanceau, Philippe
  • Griffiths, Bryan
  • Hallin, Sara
  • Philippot, Laurent
Source
NATURE CLIMATE CHANGE Volume: 4 Issue: 9 Pages: 801-805 Published: 2014
ISSN
1758-678X eISSN: 1758-6798
Abstract

Nitrous oxide (N2O) is the predominant ozone-depleting substance and contributes approximately 6% to overall global warming(1,2). Terrestrial ecosystems account for nearly 70% of total global N2O atmospheric loading, of which at least 45% can be attributed to microbial cycling of nitrogen in agriculture(3). The reduction of N2O to nitrogen gas by microorganisms is critical for mitigating its emissions from terrestrial ecosystems, yet the determinants of a soil's capacity to act as a source or sink for N2O remain uncertain(4). Here, we demonstrate that the soil N2O sink capacity is mostly explained by the abundance and phylogenetic diversity of a newly described N2O-reducing microbial group(5,6), which mediate the influence of edaphic factors. Analyses of interactions and niche preference similarities suggest niche differentiation or even competitive interactions between organisms with the two types of N2O reductase. We further identified several recurring communities comprised of co-occurring N2O-reducing bacterial genotypes that were significant indicators of the soil N2O sink capacity across different European soils.

Author Keyword(s)

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KeyWord(s) Plus
  • NITROUS-OXIDE REDUCTASE
  • DENITRIFIER COMMUNITIES
  • DIVERSITY
  • GENES
  • ABUNDANCE
ESI Discipline(s)
  • Environment/Ecology
  • Geosciences
  • Social Sciences
Web of Science Category(ies)
  • Environmental Sciences
  • Environmental Studies
  • Meteorology & Atmospheric Sciences
Adress(es)

[Jones, Christopher M.; Spor, Ayme; Brennan, Fiona P.; Breuil, Marie-Christine; Bru, David; Lemanceau, Philippe; Philippot, Laurent] INRA, UMR Agroecol 1347, F-21065 Dijon, France; [Jones, Christopher M.; Hallin, Sara] Swedish Univ Agr Sci, Dept Microbiol, S-75007 Uppsala, Sweden; [Brennan, Fiona P.; Griffiths, Bryan] TEAGASC, Environm Res Ctr, Wexford, Ireland; [Brennan, Fiona P.] James Hutton Inst, Ecol Sci Grp, Aberdeen AB15 8QH, Scotland; [Griffiths, Bryan] SRUC, Crop & Soil Syst Res Grp, Edinburgh EH9 3JG, Midlothian, Scotland

Reprint Adress

Hallin, S (reprint author), Swedish Univ Agr Sci, Dept Microbiol, Box 7025, S-75007 Uppsala, Sweden.

Country(ies)
  • France
  • Ireland
  • Sweden
  • United Kingdom
CNRS - Adress(es)

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Accession Number
WOS:000341569700022
uid:/TW18KQMP
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