摘要
多环芳烃是一类毒性较大的环境污染物。微生物降解和转化是消除此类污染物的理想方法,已发现多种细菌具有这种功能。主要针对细菌在多环芳烃降解中上游途径的代谢酶及基因簇的组成进行综述,阐述了酶的遗传学特点,并探讨了PAHs代谢基因的进化。这有助于了解PAHs的细菌降解机制,并为有效实施生物修复提供理论依据。
Polycyclic aromatic hydrocarbons （PAHs） are widespread environmental pollutants with high toxicity. It is a potent way to remove these pollutions by microbe degradation and conversion, and many bacteria have been found performing this function. Here the bacterial catabolic enzymes and genes participating in upper pathway of PAHs degradation were revealed, the genetic properties were illuminated, and the gene evolution of PAHs catabolism was further discussed. It would contribute to elucidating PAHs degrading mechanisms in bacteria and provide theoretical evidence for achieving efficient bioremediation.
出处
《微生物学通报》
CAS
CSCD
北大核心
2006年第3期161-166,共6页
Microbiology China
基金
山东理工大学博士科研启动基金资助项目(No.04KQ25)
关键词
多环芳烃
生物降解
酶
基因簇
水平基因转移
Polycyclic aromatic hydrocarbons, Biodegradation, Enzymes, Gene clusters, Horizontal gene transfer
