Microbial oxidation of CH4 at different temperatures in landfill cover soils

被引:14
作者
Börjesson, G
Sundh, I
Svensson, B
机构
[1] Linkoping Univ, Dept Water & Environm Studies, SE-58183 Linkoping, Sweden
[2] Swedish Univ Agr Sci, Dept Microbiol, SE-75007 Uppsala, Sweden
关键词
methane oxidation; methanotroph; landfill gas; phospholipid fatty acid;
D O I
10.1016/S0168-6496(04)00059-5
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
Bioloaical oxidation of CH4 is an important constraint on the emission of this gas from areas, Such as landfills to the atmosphere. We studied the effect of temperature on methanotrophic bacteria in three different landfill cover soils, incubated in the laboratory. In samples of a young cover, consisting of wood chips and sewage sludge, the phospholipid fatty acids (PLFAs), regarded Lis bio-markers for type I methanotrophs (16:1omega5t, 16:1omega6c, 16:1omega8c), primarily increased at low temperatures (5-10 degreesC). On the other hand, the PLFA marker for type II methanotrophs (18:1omega8c) was highly elevated only at 20 degreesC. These results suggest that temperature can determine the selection of methanotroph populations. (C) 2004 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:305 / 312
页数:8
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