甲烷厌氧氧化
产甲烷
甲烷
念珠菌
无氧运动
化学
氧气
亚硝酸盐
细菌
环境化学
古细菌
无机化学
生物化学
生物
有机化学
硝酸盐
16S核糖体RNA
基因
遗传学
生理学
作者
Ming L. Wu,Katharina F. Ettwig,Mike S. M. Jetten,Marc Strous,Jan T. Keltjens,Laura van Niftrik
出处
期刊:Biochemical Society Transactions
[Portland Press]
日期:2011-01-19
卷期号:39 (1): 243-248
被引量:158
摘要
Biological methane oxidation proceeds either through aerobic or anaerobic pathways. The newly discovered bacterium Candidatus ‘Methylomirabilis oxyfera’ challenges this dichotomy. This bacterium performs anaerobic methane oxidation coupled to denitrification, but does so in a peculiar way. Instead of scavenging oxygen from the environment, like the aerobic methanotrophs, or driving methane oxidation by reverse methanogenesis, like the methanogenic archaea in sulfate-reducing systems, it produces its own supply of oxygen by metabolizing nitrite via nitric oxide into oxygen and dinitrogen gas. The intracellularly produced oxygen is then used for the oxidation of methane by the classical aerobic methane oxidation pathway involving methane mono-oxygenase. The present mini-review summarizes the current knowledge about this process and the micro-organism responsible for it.
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