NDLI: Bacterial and archaeal diversity in two hot spring microbial mats from the geothermal region of Tengchong, China

Content Provider	Springer Nature Link
Author	Pagaling, Eulyn Grant, William D. Cowan, Don A. Jones, Brian E. Ma, Yanhe Ventosa, Antonio Heaphy, Shaun
Copyright Year	2012
Abstract	We investigated the bacterial and archaeal diversity in two hot spring microbial mats from the geothermal region of Tengchong in the Yunnan Province, China, using direct molecular analyses. The Langpu (LP) laminated mat was found by the side of a boiling pool with temperature of 60–65 °C and a pH of 8.5, while the Tengchong (TC) streamer mat consisted of white streamers in a slightly acidic (pH 6.5) hot pool outflow with a temperature of 72 °C. Four 16S rRNA gene clone libraries were constructed and restriction enzyme analysis of the inserts was used to identify unique sequences and clone frequencies. From almost 200 clones screened, 55 unique sequences were retrieved. Phylogenetic analysis showed that the LP mat consisted of a diverse bacterial population [Cyanobacteria, Chloroflexi, Chlorobia, Nitrospirae, ‘Deinococcus-Thermus’, Proteobacteria (alpha, beta and delta subdivisions), Firmicutes, Bacteroidetes and Actinobacteria], while the archaeal population was dominated by methanogenic Euryarchaeota and Crenarchaeota. In contrast, the TC streamer mat consisted of a bacterial population dominated by Aquificae, while the archaeal population also contained Korarchaeota as well as Crenarchaeota and methanogenic Euryarchaeota. These mats harboured clone sequences affiliated to unidentified lineages, suggesting that they are a potential source for discovering novel bacteria and archaea.
Starting Page	607
Ending Page	618
Page Count	12
File Format	PDF
ISSN	14310651
Journal	Extremophiles
Volume Number	16
Issue Number	4
e-ISSN	14334909
Language	English
Publisher	Springer Japan
Publisher Date	2012-05-24
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biodiversity Cloning Thermophile ecology Culture-independent Microbial mats Streamers Tengchong Hot springs Biotechnology Microbiology Ecology
Content Type	Text
Resource Type	Article
Subject	Medicine Molecular Medicine Microbiology

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