土壤中高分子量PAHs微生物降解机理及影响因素研究进展  

Microbial degradation mechanisms of soil high molecular weight PAHs and affecting factors:A review

作　　者：彭静静[1] 王宁[1] 黎慧娟[1] 蔡超[1] 

机构地区：[1]中国科学院城市环境研究所中国科学院城市环境与健康重点实验室,福建厦门361021

出　　处：《生态学杂志》2011年第11期2621-2627,共7页Chinese Journal of Ecology

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-YW-Q02-02);国家自然科学基金项目(40801118)资助

摘　　要：高分子量多环芳烃(HMWPAHs)分子结构复杂,疏水性强,是环境中广泛存在的难降解的有机污染物。微生物降解是去除HMWPAHs的主要途径。本文介绍了PAHs降解菌株的种类和降解机理,以及不同环境因子(营养元素、pH值、土壤结构、通气状况和复合污染)对HMWPAHs降解的影响,提出HMWPAHs污染土壤的进一步研究的方向与重点,旨在为HMWPAHs污染修复研究和微生物降解机理研究提供参考。High molecular weight polycyclic aromatic hydrocarbons （ HMW PAHs） are a group of widespread and persistent organic pollutants with complex chemical structure and high hydrophobicity, whereas microorganisms play a key role in the biodegradation of HMW PAHs. This paper summarized the bacterial strains that can degrade HMW PAHs, related degradation mechanisms, and the environmental factors （soil nutrient contents, soil pH, soil structure and aeration, and combined pollution） affecting the biodegradation of HMW PAHs, and discussed the further research directions and focuses on the HMW PAHs-contaminated soil, aimed to provide references on the researches of bioremediation of HMW PAHs-contaminated environments and molecular mechanisms involved in the microbial degradation of HMW PAHs.

关 键 词：高分子量PAHs 微生物 双加氧酶 共代谢 土壤 

分 类 号：S154.3[农业科学—土壤学] X172[农业科学—农业基础科学]