期刊
BIOTECHNOLOGY LETTERS
卷 25, 期 18, 页码 1563-1569出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1025461915495
关键词
archaea; enumeration; fluorescence in situ hybridization; landfill; methanotrophs
Methane oxidizing and producing activities of cover soil (10, 30 cm depth) and burial waste (1, 3 m depth) were evaluated: top cover soil (10 cm) had the highest methane oxidizing activity, while 1 m depth buried waste showed the highest methane producing potential. All the sequences of the 1 m sample were found to be closely related to 16S rDNAs of mainly hydrogenotrophic methanogens known, such as genera Methanosarcina, Methanoculleus, and Methanobacterium. We developed a modified fluorescence in situ hybridization (FISH) direct counting method for landfill samples, resulting in the detection of approx. 1% of total cells as archaeal cells (presumably methanogens). However, probe-positive cells could not be found with probes for methanotrophs by the methods.
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