Research progress in microbial degradation of diphenyl ether herbicides

Abstract:

Diphenyl ether herbicides, a group of broad-spectrum herbicides with high efficiency and high selectivity, have been widely used for controlling annual and perennial broad-leaved weeds in soybean and peanut fields. The continuous use of these herbicides for years may lead to significant accumulation in the soil environments. In this paper, we briefed the basic structures of diphenyl ether herbicides and their impacts on organisms, summarized the microbial species capable of degrading diphenyl ether herbicides, degradation pathways, and the key enzymes and genes involved in the degradation of diphenyl ether herbicides, and analyzed the factors affecting the microbial degradation. Finally, the future research trends in microbial degradation of diphenyl ether herbicides were presented. This paper aims to provide references for further research on the biodegradation of diphenyl ether herbicides.

Key words:diphenyl ether herbicides;microbial degradation;degradation pathway;degrading microbial system;residual accumulation