A Comprehensive Census of Microbial Diversity in Hot Springs of Tengchong, Yunnan Province China Using 16S rRNA Gene Pyrosequencing

Weiguo Hou, Shang Wang, Hailiang Dong, Hongchen Jiang, Brandon R. Briggs, Joseph P. Peacock, Qiuyuan Huang, Liuqin Huang, Geng Wu, Xiaoyang Zhi, Wenjun Li, Jeremy A. Dodsworth, Brian P. Hedlund, Chuanlun Zhang, Hilairy E. Hartnett, Paul Dijkstra, Bruce A Hungate

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Abstract

The Rehai and Ruidian geothermal fields, located in Tengchong County, Yunnan Province, China, host a variety of geochemically distinct hot springs. In this study, we report a comprehensive, cultivation-independent census of microbial communities in 37 samples collected from these geothermal fields, encompassing sites ranging in temperature from 55.1 to 93.6°C, in pH from 2.5 to 9.4, and in mineralogy from silicates in Rehai to carbonates in Ruidian. Richness was low in all samples, with 21-123 species-level OTUs detected. The bacterial phylum Aquificae or archaeal phylum Crenarchaeota were dominant in Rehai samples, yet the dominant taxa within those phyla depended on temperature, pH, and geochemistry. Rehai springs with low pH (2.5-2.6), high temperature (85.1-89.1°C), and high sulfur contents favored the crenarchaeal order Sulfolobales, whereas those with low pH (2.6-4.8) and cooler temperature (55.1-64.5°C) favored the Aquificae genus Hydrogenobaculum. Rehai springs with neutral-alkaline pH (7.2-9.4) and high temperature (>80°C) with high concentrations of silica and salt ions (Na, K, and Cl) favored the Aquificae genus Hydrogenobacter and crenarchaeal orders Desulfurococcales and Thermoproteales. Desulfurococcales and Thermoproteales became predominant in springs with pH much higher than the optimum and even the maximum pH known for these orders. Ruidian water samples harbored a single Aquificae genus Hydrogenobacter, whereas microbial communities in Ruidian sediment samples were more diverse at the phylum level and distinctly different from those in Rehai and Ruidian water samples, with a higher abundance of uncultivated lineages, close relatives of the ammonia-oxidizing archaeon "Candidatus Nitrosocaldus yellowstonii", and candidate division O1aA90 and OP1. These differences between Ruidian sediments and Rehai samples were likely caused by temperature, pH, and sediment mineralogy. The results of this study significantly expand the current understanding of the microbiology in Tengchong hot springs and provide a basis for comparison with other geothermal systems around the world.

Original languageEnglish (US)
Article numbere53350
JournalPLoS One
Volume8
Issue number1
DOIs
StatePublished - Jan 9 2013

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Hot Springs
Censuses
rRNA Genes
China
Genes
ribosomal RNA
Desulfurococcales
Thermoproteales
Hot springs
Temperature
Hydrogenobacter
Geothermal fields
Sediments
genes
Mineralogy
temperature
hot springs
sampling
mineralogy
sediments

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

A Comprehensive Census of Microbial Diversity in Hot Springs of Tengchong, Yunnan Province China Using 16S rRNA Gene Pyrosequencing. / Hou, Weiguo; Wang, Shang; Dong, Hailiang; Jiang, Hongchen; Briggs, Brandon R.; Peacock, Joseph P.; Huang, Qiuyuan; Huang, Liuqin; Wu, Geng; Zhi, Xiaoyang; Li, Wenjun; Dodsworth, Jeremy A.; Hedlund, Brian P.; Zhang, Chuanlun; Hartnett, Hilairy E.; Dijkstra, Paul; Hungate, Bruce A.

In: PLoS One, Vol. 8, No. 1, e53350, 09.01.2013.

Research output: Contribution to journalArticle

Hou, W, Wang, S, Dong, H, Jiang, H, Briggs, BR, Peacock, JP, Huang, Q, Huang, L, Wu, G, Zhi, X, Li, W, Dodsworth, JA, Hedlund, BP, Zhang, C, Hartnett, HE, Dijkstra, P & Hungate, BA 2013, 'A Comprehensive Census of Microbial Diversity in Hot Springs of Tengchong, Yunnan Province China Using 16S rRNA Gene Pyrosequencing', PLoS One, vol. 8, no. 1, e53350. https://doi.org/10.1371/journal.pone.0053350
Hou, Weiguo ; Wang, Shang ; Dong, Hailiang ; Jiang, Hongchen ; Briggs, Brandon R. ; Peacock, Joseph P. ; Huang, Qiuyuan ; Huang, Liuqin ; Wu, Geng ; Zhi, Xiaoyang ; Li, Wenjun ; Dodsworth, Jeremy A. ; Hedlund, Brian P. ; Zhang, Chuanlun ; Hartnett, Hilairy E. ; Dijkstra, Paul ; Hungate, Bruce A. / A Comprehensive Census of Microbial Diversity in Hot Springs of Tengchong, Yunnan Province China Using 16S rRNA Gene Pyrosequencing. In: PLoS One. 2013 ; Vol. 8, No. 1.
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