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[1]陈悦 罗明没 毛娇艳 李玮** 胡斌**.[综 述] 反硝化型甲烷厌氧氧化作用研究进展[J].应用与环境生物学报,2021,27(03):1-12.[doi:10.19675/j.cnki.1006-687x.2020.07030]
 CHEN Yue,LUO Mingmo,et al.Microbial-mediated denitrifying anaerobic oxidation of methane*[J].Chinese Journal of Applied & Environmental Biology,2021,27(03):1-12.[doi:10.19675/j.cnki.1006-687x.2020.07030]
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[综 述] 反硝化型甲烷厌氧氧化作用研究进展()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
27卷
期数:
2021年03期
页码:
1-12
栏目:
综 述
出版日期:
2021-06-25

文章信息/Info

Title:
Microbial-mediated denitrifying anaerobic oxidation of methane*
作者:
陈悦12 罗明没12 毛娇艳1 李玮12** 胡斌1**
1云南大学生态学与环境学院,高原湖泊生态与治理研究院 昆明 650091
2云南省高原山地生态与退化环境修复重点实验室 昆明 650091
Author(s):
CHEN Yue1 2 LUO Mingmo 1 2 MAO Jiaoyan1 LI Wei 1 2** HU Bin 1**
1 College of Ecology and Environment, Yunnan University, Institute of Plateau Lake Ecology and Governance, Kunming 650091, China
2 Yunnan Key Laboratory of Plateau Mountain Ecology and Degradation Environmental Remediation , Kunming 650091, China
关键词:
甲烷厌氧氧化温室气体甲烷氧化亚氮反硝化反应
Keywords:
anaerobic methane oxidation greenhouse gases methane nitrous oxide denitrification reaction
DOI:
10.19675/j.cnki.1006-687x.2020.07030
摘要:
甲烷(CH4)和氧化亚氮(N2O)是重要的温室气体,增温潜势极强,因此研究温室气体CH4和N2O的减排对全球碳氮循环具有重要意义。本文在介绍甲烷厌氧氧化(AOM)的主要过程基础上,重点综述了3种反硝化型甲烷厌氧氧化反应NO3-/NO2-、N2O驱动AOM的途径、相关微生物及其影响因素。NO3-驱动型AOM主要是由Candidatus Methanoperedens nitroreducens通过甲基辅酶M还原酶(Mcr)进行的反向产甲烷途径;NO2-驱动型AOM则为Candidatus Methylomirabilis oxyfera通过甲烷单加氧酶(pMMO)进行的内需氧型甲烷氧化途径。关于NO3-/NO2-驱动AOM的影响因素研究主要为环境特性、土壤深度、植被类型、甲烷、电子受体等,其中对于M. nitroreducens影响的研究较少。除此之外,最新发现还存在N2O的消耗和CH4的厌氧氧化途径,且该途径是通过在N2O的存在下而产生的内需氧型甲烷氧化途径进行的,类似于‘M. oxyfera’的细菌可能参与了N2O驱动的AOM过程。目前NO3-/NO2-驱动型AOM途径的影响因素需进行更加深入的研究与探讨;最新研究发现的N2O驱动型AOM途径的相关微生物、机制、氧化潜势、影响因素有待继续深入研究。本综述通过阐述新的反硝化型甲烷厌氧氧化途径,以期为温室气体的减排提供更多的理论支撑。(图4参85)
Abstract:
Methane (CH 4) and nitrous oxide (N2O) are important greenhouse gases with a strong warming potential. Therefore, it is of great significance to study the reduction of greenhouse gases (CH4 and N 2O) for the global carbon and nitrogen cycle. In this paper, the main processes of methane anaerobic oxidation (AOM) are introduced, and the pathways, relevant microorganisms and influencing factors of three kinds of denitrifying methane anaerobic oxidation reactions (NO3-/NO2- and N2O driving AOM ) are reviewed. NO 3driven AOM is mainly a reverse methane-producing pathway by M. Nitroreducens ( Candidatus Methanoperedens nitroreducens) via methyl-coenzyme M reductase ( Mcr). NO2-driven AOM was a domestic oxygen-type methane oxidation pathway by M. Oxyfera (Candidatus Methylomirabilis Oxyfera) through Particulate methane mono-oxygenase ( pMMO). Studies on the influencing factors of NO3-/NO2- driving AOM mainly include environmental characteristics, soil depth, vegetation type, methane, electron acceptor, etc. There are few studies on the influence of M. Nitroreducens. In addition, the latest research found that there was also N2O consumption and CH4 anaerobic oxidation pathway, and this pathway was carried out through the domestic oxygen-type methane oxidation pathway generated in the presence of N 2O. And the bacteria is similar to ’M. oxyfera’ which may participate in the N2O driven AOM process. At present, the influencing factors of NO3-/NO2- driven AOM approach need to be further studied and discussed. The relevant microorganisms, mechanism, oxidation potential and influencing factors of the N2O driven AOM pathway found in the latest research need to be further studied. The purpose of this review is to expand the new denitrifying methane anaerobic oxidation pathway, and provide more theoretical support for greenhouse gas emission reduction. (Fig. 4, Ref. 8 5)

备注/Memo

备注/Memo:
收稿日期 Received: 2020-07-14 接受日期 Accepted: 2020-09-04
国家自然科学基金项目(31700411)和云南省应用基础研究计划项目(2018FD007)资助
**通讯作者 Corresponding author (E-mail: liweismiling@ynu.edu.cn; hubin@ynu.edu.cn)
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更新日期/Last Update: 2020-09-10