Diversity of Candidatus Patescibacteria in Activated Sludge Revealed by a Size-‍Fractionation Approach.

ABSTRACT: Uncultivated members of Candidatus Patescibacteria are commonly found in activated sludge treating sewage and are widely distributed in wastewater treatment plants in different regions and countries. However, the phylogenetic diversity of Ca. Patescibacteria is difficult to examine because of their low relative abundance in the environment. Since Ca. Patescibacteria members have small cell sizes, we herein collected small microorganisms from activated sludge using a filtration-based size-fractionation approach (i.e., 0.45-0.22‍ ‍μm and 0.22-0.1‍ ‍μm fractions). Fractionated samples were characterized using 16S rRNA gene amplicon and shotgun metagenomic sequence ana-lyses. The amplicon ana-lysis revealed that the relative abundance of Ca. Patescibacteria increased to 73.5% and 52.5% in the

SUBMITTER: Kagemasa S 

PROVIDER: S-EPMC9530733 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature