厌氧甲烷氧化及其影响因子的研究进展  

Research Progress on Anaerobic Oxidation Methane and Its Influencing Factors

作　　者：余子洁 郭大陆 李致同 罗红燕[1] YU Zijie;GUO Dalu;LI Zhitong;LUO Hongyan(College of Resources and Environment,Southwest University,Chongqing 400715,China)

机构地区：[1]西南大学资源环境学院,重庆400715

出　　处：《贵州大学学报（自然科学版）》2023年第1期118-124,共7页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金资助项目(41301315);重庆市自然科学基金资助项目(Cstc2019jcyj-msxmX0304);西南大学基本科研业务费专项资金资助项目(XDJK2019B072)。

摘　　要：厌氧甲烷氧化(anaerobic oxidation methane, AOM)对降低全球甲烷排放具有重要意义,是当前生物地球化学循环的研究热点之一。基于此,综述了以不同电子受体参与的AOM反应,包括硫酸盐还原型厌氧甲烷氧化、反硝化型厌氧甲烷氧化和金属离子型厌氧甲烷氧化,对参与不同类型AOM的相关微生物种类及代谢途径进行梳理,重点总结影响因子包括甲烷浓度、氧化还原电位、温度、pH值及盐度对AOM的影响,最后展望了应拓宽研究区域,探寻更多参与AOM的电子受体及其他反应耦合体系,以期为进一步研究甲烷氧化过程在碳、氮、硫及金属离子生物地球化学循环中的重要意义提供参考。Anaerobic oxidation methane(AOM) plays an important role in reducing global methane emissions and is one of the hot research topics of current biogeochemical cycles. Based on this, this paper reviewed the different electron acceptor in AOM reaction, including sulphate-dependent anaerobic methane oxidation, denitrication-dependent anaerobic methane oxidation and metal-anaerobic methane oxidation, and studied the relevant microbial species of different types of AOM and their metabolic pathways. Also, the influences of the environmental factors on AOM were summarized, including methane concentration, redox potential, temperature, pH and salinity. Finally, it was suggested that the research area should be expanded to explore more electron acceptors and other reaction coupling systems involved in AOM. The further study of anaerobic methane oxidation process is of great significance for biogeochemical cycles of carbon, nitrogen, sulfur and metal ion cycles.

关 键 词：厌氧甲烷氧化 电子受体 影响因子 生物地球化学循环 

分 类 号：X172[环境科学与工程—环境科学]