Recent insights into the microbial catabolism of aryloxyphenoxy-propionate herbicides: microbial resources, metabolic pathways and catabolic enzymes
Aryloxyphenoxy-propionate herbicides (AOPPs) are widely used to control annual and perennial grasses in broadleaf crop fields and are frequently detected as contaminants in the environment. Due to the serious environmental toxicity of AOPPs, there is considerable concern regarding their biodegradation and environmental behaviors. Microbial catabolism is considered as the most effective method for the degradation of AOPPs in the environment. This review presents an overview of the recent findings on the microbial catabolism of various AOPPs, including fluazifop-P-butyl, cyhalofop-butyl, diclofop-methyl, fenoxaprop-P-ethyl, metamifop, haloxyfop-P-methyl and quizalofop-P-ethyl. It highlights the microbial resources that are able to catabolize these AOPPs and the metabolic pathways and catabolic enzymes involved in their degradation and mineralization. Furthermore, the application of AOPPs-degrading strains to eliminate AOPPs-contaminated environments and future research hotspots in biodegradation of AOPPs by microorganisms are also discussed.
KeywordsAryloxyphenoxy-propionates Biodegradation Microbial resource Degradation pathway Catabolic enzyme
This work was supported by the National Natural Science Foundation of China (Nos. 31700092, 21727818, 21390200, 21706125, 21706124), the Jiangsu Province Natural Science Foundation for Youth (Nos. BK20170997, BK20170993), the Key Science and Technology Project of Jiangsu Province (No. BE2016389), the Project of State Key Laboratory of Materials Oriented Chemical Engineering (KL17-09), the Jiangsu Synergetic Innovation Center for Advanced Bio-Manufacture (XTE1834), and the China Postdoctoral Innovative Talents Support Program (BX20180140).
- Grube DD, Kiely T, Wu L (2011) Pesticide industry sales and usage: 2006 and 2007 market estimates. United States Environmental Protection Agency, Washington, DCGoogle Scholar
- Hou Y (2011) Aryloxy phenoxy propionic acid and acetyl chloride herbicide degrading bacteria isolated identification, gene cloning, expression and degradation metabolic pathways study. Nanjing Agricultural University, NanjingGoogle Scholar
- Ioannis SE, George DL, Dimitris S, Antonios M (2007) Case report: mixed cholestatic/hepatocellular liver injury induced by the herbicide quizalofop-P-ethyl. Environ Health Perspect 115:1479–1481Google Scholar
- Liu H, Xu L, Ge Z et al (2015) Isolation of an aryloxyphenoxy propanoate (AOPP) herbicide-degrading strain Rhodococcus ruber JPL-2 and the cloning of a novel carboxylesterase gene (feh). Braz J Microbiol 2(46):425–432Google Scholar
- Metwally IM, Shalby EM (2007) Bio-remedaition of fluazifop-p-butyl herbicide contaminated soil with special reference to efficacy of some weed control treatments in faba bean plants. Res J Agric Biol Sci 7:11–19Google Scholar
- Qiu L, Ma CL, Liu BL, Zhang WG (2012) Current situation of research on transgenic crops with herbicide tolerance and development prospect. Sci Agric Sin 45:2357–2363Google Scholar