Intensive rice cropping drives shifts in abundance, activity, and assembly of root-associated methanotrophic community.

ABSTRACT: Rice is a staple crop relevant to present and future human feeding. However, these agroecosystems significantly contribute to greenhouse gas methane emissions. In Uruguay, a traditional low-intensity, reduced-tillage rice system alternates annual rice crops with pastures for livestock. We hypothesize that rice crop intensification impacts aerobic methanotrophic communities associated with rice roots, which are crucial in mitigating methane emissions. The pmoA gene abundance, methane oxidation potential (MOP), and methanotrophic community composition by 16S rRNA gene Illumina MiSeq (V4 region) allowed us to determine the dynamics of these communities in bulk and rhizospheric soils from continuous rice (CR) and rice-pastures (RP) rotations throughout the crop cycle. Results showed that rice

SUBMITTER: Croci-Bentura S 

PROVIDER: S-EPMC12663087 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature