A review of the microbiology of the Rehai geothermal field in Tengchong,Yunnan Province,China

被引:0
|
作者
Brian P.Hedlund [1 ]
Jessica K.Cole [1 ,2 ,3 ,4 ]
Amanda J.Williams [5 ]
机构
[1] School of Life Sciences,University of Nevada Las Vegas
[2] Geomicrobiology Laboratory,State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences
[3] Yunnan Institute of Microbiology.Yunnan University
[4] Department of Geology,Miami University
[5] School of Life Sciences.University of Nevada Las Vegas
基金
美国国家科学基金会; 中国国家自然科学基金;
关键词
Geomicrobiology; Therniophile; Yunnan; Rehai; Tengchong; PIRE;
D O I
暂无
中图分类号
Q938.8 [水生微生物学];
学科分类号
071005 ; 100705 ;
摘要
The Rehai Geothermal Field,located in Tengcbong County,in central-western Yunnan Province, is the largest and most intensively studied geothermal held in China.A wide physicochemical diversity of springs(ambient to97℃;pH from≤.8 to≥9.3) provides a multitude of niches for extremophilic microorganisms.A variety of studies have focused on the cultivation,identification,basic physiology,taxonomy,and biotechnological potential of thermophilic microorganisms from Rehai.Thermophilic bacteria isolated from Rehai belong to the phyla Firmicutes and Deinococcus-Thenmts. Firmicutes include neutrophilic or alkaliphilic Anoxybacillus,Bacillus,Caldalkalibacillus.Caldanaerobacier, Laceyella,and Geobacillus,as well as thermoacidophilic Alicyclobacillus and Sulfobacillus. Isolates from the Deinococcus-Thermus phylum include several Meiothermus and Thennus species.Many of these bacteria synthesize thermostable polymer-degrading enzymes that may be useful for biotechnology. The thermoacidophilic archaea Acidianus.Melal/osp/utera.and Suljolobus have also been isolated and studied.A few studies have reported the isolation of thermophilic viruses belonging to Siphoviridae(TTSP4 and TTSPIO) and Fuselloviridae(STSVl) infecting Thennus spp.and Suljolobus spp..respectively.More recently,cultivation-independent studies using 16S rRNA gene sequences, shotgun metagenomics,or "functional gene" sequences have revealed a much broader diversity of microorganisms than represented in culture.Studies of the gene and mRNA encoding the large subunit of the ammonia monooxygenase(imioA) of ammonia-oxidizing Archaea(AOA) and the tetraether lipid erenarchaeol. a potential biomarker for AOA.suggest a wide diversity,but possibly low abundance,of thermophilic AOA in Rehai.Finally,we introduce the Tengchong Partnerships in International Research and Education(PIRE) project,an international collaboration between Chinese and U.S.scientists with the goal of promoting international and interdisciplinary cooperation to gain a more holistic and global view of life in terrestrial geothermal springs.
引用
收藏
页码:273 / 288
页数:16
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