Stable microbial community promotes aerobic methanotrophy in a large river-reservoir system.

ABSTRACT: Aerobic methanotrophy, mainly carried out by methane-oxidizing bacteria (MOB) in freshwater systems, plays a crucial role in reducing methane (CH₄) emissions and serves as an additional carbon source (methane-derived carbon) that supports the development of microbial food loops. However, how hydrological gradients and trophic states jointly regulate methane-derived carbon dynamics and microbial community stability in river-reservoir systems, and the interplay between these two aspects, has not been adequately explored. Here, we analyze bacterial and microeukaryotic organisms using 16S rRNA and 18S rRNA gene sequencing, respectively, in a river-reservoir complex in the upper Yangtze River basin. Our results show that species diversity and interaction strength with MOB are key to

SUBMITTER: Tang Q 

PROVIDER: S-EPMC12282086 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature