Six new bacterial species isolated from the phycosphere of marine macroalgae: a joint analysis based on taxonomy and polysaccharide utilization loci.

ABSTRACT: Marine macroalgae-associated Bacteroidota play crucial roles in global carbon cycling through polysaccharide degradation, yet their taxonomic and functional diversity remains understudied. Here, we describe six novel species (strains 3-376^T, 4-2040^T, 2-473A^T, 4-528^T, 4-911^T and 463^T) within the families Flavobacteriaceae, Crocinitomicaceae, and Cytophagaceae isolated from macroalgal surfaces in the coastal area of Weihai, China. Metagenomic read recruitment and 16S rRNA abundance analyses demonstrated host-specific associations. Integrative taxonomic analyses, including phylogenomics (120 conserved proteins), 16S rRNA sequencing, and chemotaxonomy (e.g., MK-6 quinones, phosphatidylethanolamine lip

SUBMITTER: Lu DC 

PROVIDER: S-EPMC12313589 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature