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 methanederived carbon, but also aerobic methanotrophs have various ways of metabolism at different O2 concentrations. It is meaningful for carbon cycle and biodiversity of methanedriven ecosystem to understand the hypoxiatolerance mechanisms of aerobic methanotrophs and methane bio-oxidation in O2limited environments. In this paper, the activity and community structure of aerobic methanotrophs in O2limited environments were summarized. The hypoxiatolerance mechanism of aerobic methanotrophs and the relationship between methanotrophs and nonmethanotrophs in O2limited environments were reviewed. Future studies about aerobic methanotrophs were also discussed.
MA Ruo-chan,WEI Xiao-meng,HE Ruo. Mechanism of hypoxiatolerance and community structure of aerobic methanotrophs in O2limited environments: A review.[J]. Chinese Journal of Applied Ecology, 2017, 28(6): 2047-2054.