Biodegradation of Pesticides at the Limit: Kinetics and Microbial Substrate Use at Low Concentrations.

ABSTRACT: The objective of our study was to test whether limited microbial degradation at low pesticide concentrations could explain the discrepancy between overall degradability demonstrated in laboratory tests and their actual persistence in the environment. Studies on pesticide degradation are often performed using unrealistically high application rates seldom found in natural environments. Nevertheless, biodegradation rates determined for higher pesticide doses cannot necessarily be extrapolated to lower concentrations. In this context, we wanted to (i) compare the kinetics of pesticide degradation at different concentrations in arable land and (ii) clarify whether there is a concentration threshold below which the expression of the functional genes involved in the degradation pathway is inhibit

SUBMITTER: Wirsching J 

PROVIDER: S-EPMC7481373 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature