Microbial co-occurrence network topological properties link with reactor parameters and reveal importance of low-abundance genera.

ABSTRACT: Operational factors and microbial interactions affect the ecology in anaerobic digestion systems. From 12 lab-scale reactors operated under distinct engineering conditions, bacterial communities were found driven by temperature, while archaeal communities by both temperature and substrate properties. Combining the bacterial and archaeal community clustering patterns led to five sample groups (ambient, mesophilic low-solid-substrate, mesophilic, mesophilic co-digestion and thermophilic) for co-occurrence network analysis. Network topological properties were associated with substrate characteristics and hydrolysis-methanogenesis balance. The hydrolysis efficiency correlated (p < 0.05) with clustering coefficient positively and with normalized betweenness negatively. The influent particulate

SUBMITTER: Guo B 

PROVIDER: S-EPMC8764041 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature