铁还原菌降解石油烃的研究进展  

Degradation of petroleum hydrocarbons by using iron-reducing bacteria

作　　者：张涵 孙珊珊 董浩 承磊[3] 佘跃惠 Han Zhang;Shanshan Sun;Hao Dong;Lei Cheng;Yuehui She(College of Chemistry and Environmental Engineering,Yangtze University,Jingzhou 434023,Hubei Province,China;College of Petroleum Engineering,Yangtze University,Wuhan 430100,Hubei Province,China;Biogas Institute of Ministry of Agriculture,Chengdu 610000,Sichuan Province,China)

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023 [2]长江大学石油工程学院,湖北武汉430100 [3]农业部沼气科学研究所,四川成都610000

出　　处：《微生物学报》2020年第6期1246-1258,共13页Acta Microbiologica Sinica

基　　金：十三五国家科技重大专项(2017ZX05009-004);国家自然科学基金(51634008,51574038).

摘　　要：铁还原菌是指能够利用细胞外Fe(III)作为末端电子受体,通过氧化有机物将Fe(III)还原为Fe(II)微生物的总称。铁还原作用广泛存在于土壤、河流、海洋、地表含水层以及高温高压的地下深部油藏。在厌氧或兼性厌氧条件下,Fe(III)还原耦合有机物的降解,对铁、碳元素的生物地球化学循环具有重要意义。本文介绍了铁还原菌的多样性和铁还原作用机理,综述了铁还原菌在石油烃降解方面的研究进展。此外,还总结了铁还原菌在生物修复中的潜在作用,并对未来的研究方向进行了展望。Iron-reducing bacteria can reduce Fe(III)to Fe(II)by using the extracellular Fe(III)as a terminal electron acceptor and oxidizing organic compounds.The iron reduction widely occurs in soils,rivers,oceans,surface aquifers,and deep petroleum reservoirs at high temperatures and pressures.Anaerobic degradation of organic compounds coupled with Fe(III)-reduction is of great importance to the biogeochemical cycle of iron and carbon.This paper examines a variety of iron-reducing bacteria and their mechanisms.It also summarizes the research and development(R&D)progresses of using iron-reducing bacteria in degradation of petroleum hydrocarbons.In addition,the potential role of iron-reducing bacteria in bioremediation is also discussed.Finally,some future studies of iron-reducing bacteria are recommended.

关 键 词：铁还原菌多样性 石油烃降解 铁还原作用机理 厌氧氧化 生物修复 

分 类 号：X172[环境科学与工程—环境科学]