Novel dichloromethane-fermenting bacteria in the Peptococcaceae family.

ABSTRACT: Dichloromethane (DCM; CH₂Cl₂) is a toxic groundwater pollutant that also has a detrimental effect on atmospheric ozone levels. As a dense non-aqueous phase liquid, DCM migrates vertically through groundwater to low redox zones, yet information on anaerobic microbial DCM transformation remains scarce due to a lack of cultured organisms. We report here the characterisation of DCMF, the dominant organism in an anaerobic enrichment culture (DFE) capable of fermenting DCM to the environmentally benign product acetate. Stable carbon isotope experiments demonstrated that the organism assimilated carbon from DCM and bicarbonate via the Wood-Ljungdahl pathway. DCMF is the first anaerobic DCM-degrading population also shown to metabolise non-chlorinated substrates. It appears t

SUBMITTER: Holland SI 

PROVIDER: S-EPMC8163858 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature