Bacterial assembly and temporal dynamics in activated sludge of a full-scale municipal wastewater treatment plant.

ABSTRACT: Understanding environmental and biological influences on the dynamics of microbial communities has received great attention in microbial ecology. Here, utilizing large time-series 16S rRNA gene data, we show that in activated sludge of an environmentally important municipal wastewater treatment plant, 5-year temporal dynamics of bacterial community shows no significant seasonal succession, but is consistent with deterministic assemblage by taxonomic relatedness. Biological interactions are dominant drivers in determining the bacterial community assembly, whereas environmental conditions (mainly sludge retention time and inorganic nitrogen) partially explain phylogenetic and quantitative variances and indirectly influence bacterial assembly. We demonstrate a correlation-based statistical me

SUBMITTER: Ju F 

PROVIDER: S-EPMC4331583 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature