期刊
EXTREMOPHILES
卷 14, 期 3, 页码 287-296出版社
SPRINGER JAPAN KK
DOI: 10.1007/s00792-010-0307-6
关键词
Crenarchaeota; Diversity; Terrestrial hot springs; Tengchong
资金
- National Basic Research Program of China [2010CB833800]
- Key Project of International Cooperation [2007DFB31620]
- Yunnan Provincial Natural Science Foundation [2009AC017, 2009DA002]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- US National Science Foundation [MCB-0348180]
Diversity of Crenarchaeota was investigated in eight terrestrial hot springs (pH 2.8-7.7; temperature 44-96A degrees C) located in Tengchong, China, using 16S rRNA gene phylogenetic analysis. A total of 826 crenarchaeotal clones were sequenced and a total of 47 operational taxonomic units (OTUs) were identified. Most (93%) of the identified OTUs were closely related (89-99%) to those retrieved from hot springs and other thermal environments. Our data showed that temperature may predominate over pH in affecting crenarchaeotal diversity in Tengchong hot springs. Crenarchaeotal diversity in moderate-temperature (59-77A degrees C) hot springs was the highest, indicating that the moderately hot-temperature springs may provide optimal conditions for speciation of Crenarchaeota.
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