Microbial predation accelerates granulation and modulates microbial community composition.

ABSTRACT:

Background

Bacterial communities are responsible for biological nutrient removal and flocculation in engineered systems such as activated floccular sludge. Predators such as bacteriophage and protozoa exert significant predation pressure and cause bacterial mortality within these communities. However, the roles of bacteriophage and protozoan predation in impacting granulation process remain limited. Recent studies hypothesised that protozoa, particularly sessile ciliates, could have an important role in granulation as these ciliates were often observed in high abundance on surfaces of granules. Bacteriophages were hypothesized to contribute to granular stability through bacteriophage-mediated extracellular DNA release by lysing bacterial cells. This current study investigated the b

SUBMITTER: Chan SH 

PROVIDER: S-EPMC8004422 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature