Cellulose-mediated floc formation by the activated sludge bacterium Shinella zoogloeoides ATCC 19623.

ABSTRACT:

Background

Bacterial floc formation plays a central role in the activated sludge (AS) process. The formation of AS flocs has long been known to require exopolysaccharide biosynthesis. We had demonstrated that both expolysaccharides and PEP-CTERM (a short C-terminal domain includes a near-invariant motif Pro-Glu-Pro (PEP)) proteins were required for floc-forming in Zoogloea resiniphila MMB, a dominant AS bacterium. However, the PEP-CTERM proteins are not encoded in the genome of AS bacterium Shinella zoogloeoides ATCC 19623 (formerly known as Zoogloea ramigera I-16-M) and other sequenced AS bacteria strains. The mechanism underlying floc formation of Shinella and related AS bacteria remained largely unclear.

Results

In this study, we have sequenced and annotated the complete

SUBMITTER: Gao N 

PROVIDER: S-EPMC9012009 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature