Toward Integrative Bacterial Monitoring of Metolachlor Toxicity in Groundwater.

ABSTRACT: Common herbicides such as metolachlor (MET), and their transformation products, are frequently detected in groundwater worldwide. Little is known about the response of groundwater bacterial communities to herbicide exposure, and its potential use for ecotoxicological assessment. The response of bacterial communities exposed to different levels of MET from the Ariège alluvial aquifer (Southwest of France) was investigated in situ and in laboratory experiments. Variations in both chemistry and bacterial communities were observed in groundwater, but T-RFLP analysis did not allow to uncover a pesticide-specific effect on endogenous bacterial communities. To circumvent issues of hydrogeochemical and seasonal variations in situ, groundwater samples from two monitoring wells of the

SUBMITTER: Imfeld G 

PROVIDER: S-EPMC6198151 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature