Linking transcriptional dynamics of CH₄-cycling grassland soil microbiomes to seasonal gas fluxes.

ABSTRACT: Soil CH₄ fluxes are driven by CH₄-producing and -consuming microorganisms that determine whether soils are sources or sinks of this potent greenhouse gas. To date, a comprehensive understanding of underlying microbiome dynamics has rarely been obtained in situ. Using quantitative metatranscriptomics, we aimed to link CH₄-cycling microbiomes to net surface CH₄ fluxes throughout a year in two grassland soils. CH₄ fluxes were highly dynamic: both soils were net CH₄ sources in autumn and winter and sinks in spring and summer, respectively. Correspondingly, methanogen mRNA abundances per gram soil correlated well with CH₄ fluxes. Methanotroph to methanogen mRNA ratios were higher in spring and summer, when the soils ac

SUBMITTER: Taumer J 

PROVIDER: S-EPMC9213473 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature