AEM00040x-09Finalsubmit.pdf (557.88 kB)
Download file

Microbial Biogeography of Six Salt Lakes in Inner Mongolia, China, and a Salt Lake in Argentina

Download (557.88 kB)
journal contribution
posted on 14.09.2010, 15:37 by Eulyn Pagaling, Huanzhi Wang, Madeleine Venables, Andrew Wallace, William D. Grant, Don A. Cowan, Brian E. Jones, Yanhe Ma, Antonio Ventosa, Shaun Heaphy
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.

History

Citation

Applied and Environmental Microbiology, 2009, 75 (18), pp. 5750-5760.

Published in

Applied and Environmental Microbiology

Publisher

American Society for Microbiology

issn

0099-2240

Copyright date

2009

Available date

14/09/2010

Publisher version

http://aem.asm.org/content/75/18/5750

Language

en

Usage metrics

Categories

Keywords

Exports