细菌降解多环芳烃上游途径的遗传学研究进展  

Genetics Advances in Upper Catabolic Pathways of Polycyclic Aromatic Hydrocarbons Degradation by Bacteria

作　　者：张春杨[1] 

机构地区：[1]山东理工大学生命科学学院,淄博255049

出　　处：《微生物学通报》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)

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.

关 键 词：多环芳烃 生物降解 酶 基因簇 水平基因转移 

分 类 号：X172[环境科学与工程—环境科学]