低氧生境中好氧甲烷氧化菌的缺氧耐受机理及种群结构研究进展

doi:10.13287/j.1001-9332.201706.023

摘要/Abstract

摘要： 甲烷生物氧化在全球大气甲烷平衡和温室气体的控制中起着重要作用.氧气是甲烷生物氧化过程中的重要影响因素之一.生境中氧浓度不仅影响好氧甲烷氧化菌的种群结构、活性及甲烷碳的分配,而且好氧甲烷氧化菌在不同氧浓度下具有不同的代谢途径.理解低氧生境中好氧甲烷氧化菌的缺氧耐受机理和甲烷生物氧化过程,对甲烷驱动型生态系统的碳循环和生物多样性有着重要意义.本文以好氧甲烷氧化菌为对象,综述了低氧生境中好氧甲烷氧化菌的活性及其种群结构、好氧甲烷氧化菌的缺氧耐受机理以及低氧生境中甲烷氧化菌与非甲烷氧化菌的关系,并对今后的研究方向进行了展望.

Abstract: Methane bio-oxidation plays an important role in the global methane balance and greenhouse gases mitigation. Oxygen (O₂) is one of the significant factors in methane bio-oxidation. The O₂ concentration in the environments not only can affect community structure and activity of aerobic methanotrophs and the distribution of methane-derived carbon, but also aerobic methanotrophs have various ways of metabolism at different O₂ concentrations. It is meaningful for carbon cycle and biodiversity of methane-driven ecosystem to understand the hypoxia-tolerance mechanisms of aerobic methanotrophs and methane bio-oxidation in O₂-limited environments. In this paper, the activity and community structure of aerobic methanotrophs in O₂-limited environments were summarized. The hypoxia-tolerance mechanism of aerobic methanotrophs and the relationship between methanotrophs and non-methanotrophs in O₂-limited environments were reviewed. Future studies about aerobic methanotrophs were also discussed.

马若潺, 魏晓梦, 何若. 低氧生境中好氧甲烷氧化菌的缺氧耐受机理及种群结构研究进展[J]. 应用生态学报, 2017, 28(6): 2047-2054.

MA Ruo-chan, WEI Xiao-meng, HE Ruo. Mechanism of hypoxia-tolerance and community structure of aerobic methanotrophs in O₂-limited environments: A review[J]. Chinese Journal of Applied Ecology, 2017, 28(6): 2047-2054.

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