Dedysh S N, Panikov N S, Liesack W, Grosskopf R, Zhou J, Tiedje J M
Institute of Microbiology, Russian Academy of Sciences, Moscow 117811, Russia.
Science. 1998 Oct 9;282(5387):281-4. doi: 10.1126/science.282.5387.281.
Acidic northern wetlands are an important source of methane, one of the gases that contributes to global warming. Methane oxidation in the surface of these acidic wetlands can reduce the methane flux to the atmosphere up to 90 percent. Here the isolation of three methanotrophic microorganisms from three boreal forest sites is reported. They are moderately acidophilic organisms and have a soluble methane monooxygenase. In contrast to the known groups of methanotrophs, 16S ribosomal DNA sequence analysis shows that they are affiliated with the acidophilic heterotrophic bacterium Beijerinckia indica subsp. indica.
酸性北方湿地是甲烷的重要来源之一，甲烷是导致全球变暖的气体之一。这些酸性湿地表面的甲烷氧化可使进入大气的甲烷通量减少多达90%。本文报道了从三个北方森林地点分离出三种甲烷氧化微生物。它们是中度嗜酸生物，具有可溶性甲烷单加氧酶。与已知的甲烷氧化菌群体不同，16S核糖体DNA序列分析表明，它们与嗜酸异养细菌印度拜叶林克氏菌印度亚种有关。
