A benzene-degrading nitrate-reducing microbial consortium displays aerobic and anaerobic benzene degradation pathways.

ABSTRACT: In this study, we report transcription of genes involved in aerobic and anaerobic benzene degradation pathways in a benzene-degrading denitrifying continuous culture. Transcripts associated with the family Peptococcaceae dominated all samples (21-36% relative abundance) indicating their key role in the community. We found a highly transcribed gene cluster encoding a presumed anaerobic benzene carboxylase (AbcA and AbcD) and a benzoate-coenzyme A ligase (BzlA). Predicted gene products showed >96% amino acid identity and similar gene order to the corresponding benzene degradation gene cluster described previously, providing further evidence for anaerobic benzene activation via carboxylation. For subsequent benzoyl-CoA dearomatization, bam-like genes analogous to the ones found in other stric

SUBMITTER: Atashgahi S 

PROVIDER: S-EPMC5852087 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature