蒋海明^1,2,王路路^1,2,李侠³

• 1:内蒙古科技大学 生命科学与技术学院，内蒙古 包头 014010
• 2:内蒙古自治区生物质能源化利用重点实验室，内蒙古 包头 014010
• 3:内蒙古科技大学 矿业研究院，内蒙古 包头 014010

摘要(Abstract)：

厌氧产甲烷体系中细菌与产甲烷菌之间的电子传递，一直以来被认为是通过种间H₂/甲酸转移来实现。然而，近年来研究发现某些电活性微生物与产甲烷菌之间存在可替代种间H₂/甲酸转移以实现电子传递的种间直接电子传递（direct interspecies electron transfer，DIET）。通过DIET方式，产甲烷菌可从与其共生的微生物中直接获得的电子还原CO₂产甲烷，该方式极大地提高产甲烷的效率和产甲烷的量。但是，目前对DIET方式耦合产甲烷还缺乏深入研究。文章对DIET方式耦合还原CO₂产甲烷的研究现状进行了概述，重点分析了DIET方式耦合还原CO₂产甲烷研究存在的问题，并讨论了其今后研究方向，以为DIET方式耦合还原CO₂产甲烷研究提供参考。

关键词(KeyWords)： 甲烷;电活性微生物;产甲烷菌;种间直接电子传递;共培养

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（31560015，31860011，51864037）；内蒙古自然科学基金（2016MS0512，2018LH03024）；内蒙古自治区高等学校科学技术研究项目（NJZY16155）；内蒙古科技大学创新基金（2016XYPYL03）。

作者(Author): 蒋海明^1,2,王路路^1,2,李侠³

DOI: 10.3969/j.issn.1003-9015.2019.06.002

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