2018
DOI: 10.1038/s41586-018-0338-1
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Abstract: As global temperatures rise, large amounts of carbon sequestered in permafrost are becoming available for microbial degradation. Accurate prediction of carbon gas emissions from thawing permafrost is limited by our understanding of these microbial communities. Here we use metagenomic sequencing of 214 samples from a permafrost thaw gradient to recover 1,529 metagenome-assembled genomes, including many from phyla with poor genomic representation. These genomes reflect the diversity of this complex ecosystem, wi… Show more

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Cited by 326 publications
(392 citation statements)
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“…The degradation potential was linked to various bacterial taxa. In general, the taxonomic composition of the microbial communities in the thaw ponds was in agreement with previous studies in peatland environments, with high contribution of Proteobacteria, Bacteroidetes, Verrucomicrobia, and Actinobacteria to organic matter degradation potential (Tveit et al ; Ivanova et al ; Wurzbacher et al ; Woodcroft et al ). Bacteroidetes was a major contributor to degradation potential in all age categories and different layers of the ponds.…”
Section: Discussionsupporting
confidence: 91%
“…The degradation potential was linked to various bacterial taxa. In general, the taxonomic composition of the microbial communities in the thaw ponds was in agreement with previous studies in peatland environments, with high contribution of Proteobacteria, Bacteroidetes, Verrucomicrobia, and Actinobacteria to organic matter degradation potential (Tveit et al ; Ivanova et al ; Wurzbacher et al ; Woodcroft et al ). Bacteroidetes was a major contributor to degradation potential in all age categories and different layers of the ponds.…”
Section: Discussionsupporting
confidence: 91%
“…Our finding of a warming‐induced increase in ligninase activity relative to cellulase activity indicates soil microbes decompose more chemically complex and recalcitrant C pools (e.g., lignin) to fuel their metabolic processes (Romero‐Olivares et al, ; Sinsabaugh, ). Indeed, several recent studies found that warming favors microbial functional communities degrading old and recalcitrant C pools (Cheng et al, ; Feng et al, ; Woodcroft et al, ; Xue et al, ).…”
Section: Discussionmentioning
confidence: 99%
“…and sedges. While several classification schemes have been used for work at Stordalen Mire, we adopted the classification used by previous microbial ecology (McCalley et al, ; Singleton et al, 218; Woodcroft et al, ) and modeling work (Deng et al, , ) rather than remote sensing (Johansson et al, ; Malmer et al, ; Palace et al, ) as we expect our data will be of greater interest to these fields (see Table S6 in the supporting information for how our classifications relate to others). Table describes vegetation and abiotic factors at each site.…”
Section: Methodsmentioning
confidence: 99%