Microbial Biotransformation Products and Pathways of Dichloroacetamide Herbicide Safeners.

ABSTRACT: Dichloroacetamide safeners are common ingredients in commercial herbicide formulations. We previously investigated the environmental fate of dichloroacetamides via photolysis and hydrolysis, but other potentially important, environmentally relevant fate processes remain uncharacterized and may yield products of concern. Here, we examined microbial biotransformation of two dichloroacetamide safeners, benoxacor and dichlormid, to identify products and elucidate pathways. Using aerobic microcosms inoculated with river sediment, we demonstrated that microbial biotransformations of benoxacor and dichlormid proceed primarily, if not exclusively, via cometabolism. Benoxacor was transformed by both hydrolysis and microbial biotransformation processes; in most cases, biotransformation rates were fa

SUBMITTER: McFadden ME 

PROVIDER: S-EPMC10111411 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature