Hydrodynamic disturbance controls microbial community assembly and biogeochemical processes in coastal sediments.

ABSTRACT: The microbial community composition and biogeochemical dynamics of coastal permeable (sand) sediments differs from cohesive (mud) sediments. Tide- and wave-driven hydrodynamic disturbance causes spatiotemporal variations in oxygen levels, which select for microbial generalists and disrupt redox cascades. In this work, we profiled microbial communities and biogeochemical dynamics in sediment profiles from three sites varying in their exposure to hydrodynamic disturbance. Strong variations in sediment geochemistry, biogeochemical activities, and microbial abundance, composition, and capabilities were observed between the sites. Most of these variations, except for microbial abundance and diversity, significantly correlated with the relative disturbance level of each sample. In line with prev

SUBMITTER: Chen YJ 

PROVIDER: S-EPMC8857189 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature