Methylotrophy in the Mire: direct and indirect routes for methane production in thawing permafrost.

ABSTRACT: While wetlands are major sources of biogenic methane (CH₄), our understanding of resident microbial metabolism is incomplete, which compromises the prediction of CH₄ emissions under ongoing climate change. Here, we employed genome-resolved multi-omics to expand our understanding of methanogenesis in the thawing permafrost peatland of Stordalen Mire in Arctic Sweden. In quadrupling the genomic representation of the site's methanogens and examining their encoded metabolism, we revealed that nearly 20% of the metagenome-assembled genomes (MAGs) encoded the potential for methylotrophic methanogenesis. Further, 27% of the transcriptionally active methanogens expressed methylotrophic genes; for Methanosarcinales and Methanobacteriales MAGs, these data indicate

SUBMITTER: Ellenbogen JB 

PROVIDER: S-EPMC10805028 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature