Diversity of Crenarchaeota in terrestrial hot springs in Tengchong, China |
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| Authors: | Zhao-Qi Song Jing-Quan Chen Hong-Chen Jiang En-Min Zhou Shu-Kun Tang Xiao-Yang Zhi Li-Xin Zhang Chuan-Lun L. Zhang Wen-Jun Li |
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| Affiliation: | (1) The Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming, China;(2) Laboratory for Conservation and Utilization of Bio-Resources, Yunnan Institute of Microbiology, Yunnan University, Kunming, 650011, China;(3) Geomicrobiology Laboratory, State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing, 100083, China;(4) Chinese Academy of Sciences, Institute of Microbiology, Beijing, 100101, China;(5) Department of Marine Sciences, University of Georgia, Athens, GA 30602, USA; |
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| Abstract: | Diversity of Crenarchaeota was investigated in eight terrestrial hot springs (pH 2.8–7.7; temperature 44–96°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 (59–77°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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