Occurrence, Diversity, and Genomes of "Candidatus Patescibacteria" along the Early Diagenesis of Marine Sediments.

ABSTRACT: The phylum "Candidatus Patescibacteria" (or Candidate Phyla Radiation [CPR]) accounts for roughly one-quarter of microbial diversity on Earth, but the presence and diversity of these bacteria in marine sediments have been rarely charted. Here, we investigate the abundance, diversity, and metabolic capacities of CPR bacteria in three sediment sites (Mohns Ridge, North Pond, and Costa Rica Margin) with samples covering a wide range of redox zones formed during the early diagenesis of organic matter. Through metagenome sequencing, we found that all investigated sediment horizons contain "Ca. Patescibacteria" (0.4 to 28% of the total communities), which are affiliated with the classes "Ca. Paceibacteria," "Ca. Gracilibacteria," "Ca. Microgenomatia," "Ca.</

SUBMITTER: Zhao R 

PROVIDER: S-EPMC9765117 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature