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Title: Microbiome–metabolite linkages drive greenhouse gas dynamics over a permafrost thaw gradient

Journal Article · · Nature Microbiology
ORCiD logo [1];  [2];  [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [2]; ORCiD logo [4]; ORCiD logo [5];  [3];  [7];  [8];  [2];  [1];  [9]; ORCiD logo [1]; ORCiD logo [2];  [3];  [3]; ORCiD logo [3] more »; ORCiD logo [10]; ORCiD logo [1] « less
  1. Univ. of Arizona, Tucson, AZ (United States)
  2. Univ. of New Hampshire, Durham, NH (United States)
  3. The Ohio State Univ., Columbus, OH (United States)
  4. Queensland University of Technology (Australia)
  5. Case Western Reserve Univ., Cleveland, OH (United States)
  6. Florida State Univ., Tallahassee, FL (United States)
  7. Lund Univ. (Sweden)
  8. Colorado State Univ., Fort Collins, CO (United States)
  9. Chapman Univ., Orange, CA (United States)
  10. Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Washington State Univ., Pullman, WA (United States)

Interactions between microbiomes and metabolites play crucial roles in the environment, yet how these interactions drive greenhouse gas emissions during ecosystem changes remains unclear. Here we analysed microbial and metabolite composition across a permafrost thaw gradient in Stordalen Mire, Sweden, using paired genome-resolved metagenomics and high-resolution Fourier transform ion cyclotron resonance mass spectrometry guided by principles from community assembly theory to test whether microorganisms and metabolites show concordant responses to changing drivers. Our analysis revealed divergence between the inferred microbial versus metabolite assembly processes, suggesting distinct responses to the same selective pressures. This contradicts common assumptions in trait-based microbial models and highlights the limitations of measuring microbial community-level data alone. Furthermore, feature-scale analysis revealed connections between microbial taxa, metabolites and observed CO2 and CH4 porewater variations. Our study showcases insights gained by using feature-level data and microorganism–metabolite interactions to better understand metabolic processes that drive greenhouse gas emissions during ecosystem changes.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231; AC05-76RL01830; SC0021349
OSTI ID:
2452820
Report Number(s):
PNNL-SA--196799
Journal Information:
Nature Microbiology, Journal Name: Nature Microbiology Journal Issue: 11 Vol. 9; ISSN 2058-5276
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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