Polysaccharide niche partitioning of distinct Polaribacter clades during North Sea spring algal blooms.

ABSTRACT: Massive releases of organic substrates during marine algal blooms trigger growth of many clades of heterotrophic bacteria. Algal polysaccharides represent the most diverse and structurally complex class of these substrates, yet their role in shaping the microbial community composition is poorly understood. We investigated, whether polysaccharide utilization capabilities contribute to niche differentiation of Polaribacter spp. (class Flavobacteriia; known to include relevant polysaccharide-degraders) that were abundant during 2009-2012 spring algal blooms in the southern North Sea. We identified six distinct Polaribacter clades using phylogenetic and phylogenomic analyses, quantified their abundances via fluorescence in situ hybridization, compared metagenome-assembled genomes, and assessed

SUBMITTER: Avcı B 

PROVIDER: S-EPMC7242417 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature