Characterization of two keystone taxa, sulfur-oxidizing, and nitrate-reducing bacteria, by tracking their role transitions in the benzo[a]pyrene degradative microbiome.

ABSTRACT:

Background

Keystone taxa are drivers of microbiome structure and functioning, which may play critical roles in microbiome-level responses to recalcitrant pollution and are a key to bioremediation. However, the characterization and manipulation of such taxa is a major challenge due to the complexity of microbial communities and rapid turnover in both time and space. Here, microcosms were set up with benzo[a]-pyrene (BaP) and/or nitrate based on C-rich, S-rich, and N-limited mangrove sediments as reductive experimental models to trigger and track the turnover of keystone taxa to address this challenge.

Results

Based on microbial co-occurrence network analysis, two keystone taxa, Sulfurovum and Sulfurimonas, were found to exhibit significant role transitions in different microc

SUBMITTER: Lin X 

PROVIDER: S-EPMC10290299 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature