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Title: Microbial Biogeography of Six Salt Lakes in Inner Mongolia, China, and a Salt Lake in Argentina
Authors: Pagaling, Eulyn
Wang, Huanzhi
Venables, Madeleine
Wallace, Andrew
Grant, William D.
Cowan, Don A.
Jones, Brian E.
Ma, Yanhe
Ventosa, Antonio
Heaphy, Shaun
First Published: Sep-2009
Publisher: American Society for Microbiology
Citation: Applied and Environmental Microbiology, 2009, 75 (18), pp. 5750-5760.
Abstract: We used cultivation-independent methods to investigate the prokaryotic biogeography of the water column in six salt lakes in Inner Mongolia, China, and a salt lake in Argentina. These lakes had different salt compositions and pH values and were at variable geographic distances, on both local and intercontinental scales, which allowed us to explore the microbial community composition within the context of both contemporary environmental conditions and geographic distance. Fourteen 16S rRNA gene clone libraries were constructed, and over 200 16S rRNA gene sequences were obtained. These sequences were used to construct biotic similarity matrices, which were used in combination with environmental similarity matrices and a distance matrix in the Mantel test to discover which factors significantly influenced biotic similarity. We showed that archaeal biogeography was influenced by contemporary environmental factors alone (Na+, CO32–, and HCO3– ion concentrations; pH; and temperature). Bacterial biogeography was influenced both by contemporary environmental factors (Na+, Mg2+, and HCO3– ion concentrations and pH) and by geographic distance.
ISSN: 0099-2240
Type: Article
Description: This is the author's final draft of the paper published as Applied and Environmental Microbiology, 2009, 75 (18), pp. 5750-5760. The final version is available from Doi: 10.1128/AEM.00040-09
Appears in Collections:Published Articles, Dept. of Infection, Immunity and Inflammation

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