Metagenomic insights into the dynamic degradation of brown algal polysaccharides by kelp-associated microbiota.

ABSTRACT: Marine bacteria play important roles in the degradation and cycling of algal polysaccharides. However, the dynamics of epiphytic bacterial communities and their roles in algal polysaccharide degradation during kelp decay are still unclear. Here, we performed metagenomic analyses to investigate the identities and predicted metabolic abilities of epiphytic bacterial communities during the early and late decay stages of the kelp Saccharina japonica. During kelp decay, the dominant epiphytic bacterial communities shifted from Gammaproteobacteria to Verrucomicrobia and Bacteroidetes. In the early decay stage of S. japonica, epiphytic bacteria primarily targeted kelp-derived labile alginate for degradation, among which the gammaproteobacterial Vibrionaceae (particularly V

SUBMITTER: Zhang Y-S 

PROVIDER: S-EPMC10880675 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature