3,5,6-三氯-2-吡啶酚的微生物降解及催化机制  

A Review on Microbial Degradation and Catalytic Mechanism of 3,5,6-Trichloro-2-Pyridinol

作　　者：岳彩旭 贾楠 王圣惠 YUE Caixu;JIA Nan;WANG Shenghui(School of Life Science,Liaocheng University,Liaocheng 252000,China)

机构地区：[1]聊城大学生命科学学院,山东聊城252000

出　　处：《环境科学与技术》2022年第11期10-16,共7页Environmental Science & Technology

基　　金：国家自然科学基金青年科学基金项目(41401288);山东省自然科学基金面上项目(ZR2020MD103);大学生创新创业训练项目(CXCY2020Y133);聊城大学畜牧学学科开放课题(319312101-19)。

摘　　要：3,5,6-三氯-2-吡啶酚(TCP)属于氯代吡啶类化合物,它是有机磷农药毒死蜱的高毒、难降解残留物,同时也是一种持久性有机污染物。随着毒死蜱在中国的大量生产和超量使用,TCP的环境污染日趋严重。微生物降解技术是消除TCP环境污染的有效方法。文章概述了TCP的化学结构、环境命运、生态毒性,TCP降解的微生物种类,TCP在好氧、缺氧及厌氧环境下的微生物降解途径及TCP降解基因和酶等的最新研究进展,这将为毒死蜱及TCP持久性污染土壤及水体生物修复技术的开发和应用提供参考。3,5,6-trichloro-2-pyridinol(TCP) belongs to chlorinated pyridines. It is not only a highly toxic and refractory residue of organophosphorus pesticide chlorpyrifos, but also a persistent organic pollutant. TCP is more mobile in soil and more leachable into groundwater and surface water, which causes the widespread contamination in deep soil and aquatic environment due to mass production and excessive use of chlorpyrifos in China. The chemical structure, environmental fate and ecotoxicity of TCP were outlined, and the latest research progress on TCP degradation mechanisms with microbial strains,metabolic pathways, catalytic mechanisms, degradation genes and enzymes were also summarized, which would provide reference for the development and application of the bioremediation of chlorpyrifos and TCP persistently polluted soil and water.

关 键 词：3 5 6-三氯-2-吡啶酚 微生物 降解 催化机制 

分 类 号：X172[环境科学与工程—环境科学]