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Applied and Environmental Microbiology, December 2006, p. 7902-7908, Vol. 72, No. 12
0099-2240/06/$08.00+0     doi:10.1128/AEM.01305-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.

SHORT REPORT

Bacterial Community Structure in the Hyperarid Core of the Atacama Desert, Chile{triangledown}

Kevin P. Drees,1,{dagger} Julia W. Neilson,1* Julio L. Betancourt,2 Jay Quade,3 David A. Henderson,4 Barry M. Pryor,5 and Raina M. Maier1

University of Arizona Department of Soil, Water, and Environmental Science, Tucson, Arizona 85721,1 University of Arizona Desert Laboratory and U.S. Geological Survey, Tucson, Arizona 85721,2 University of Arizona Desert Laboratory and Department of Geosciences, Tucson, Arizona 85721,3 University of Arizona Department of Animal Sciences, Tucson, Arizona 85721,4 University of Arizona Department of Plant Sciences, Tucson, Arizona 857215

Received 7 June 2006/ Accepted 25 September 2006

Soils from the hyperarid Atacama Desert of northern Chile were sampled along an east-west elevational transect (23.75 to 24.70°S) through the driest sector to compare the relative structure of bacterial communities. Analysis of denaturing gradient gel electrophoresis (DGGE) profiles from each of the samples revealed that microbial communities from the extreme hyperarid core of the desert clustered separately from all of the remaining communities. Bands sequenced from DGGE profiles of two samples taken at a 22-month interval from this core region revealed the presence of similar populations dominated by bacteria from the Gemmatimonadetes and Planctomycetes phyla.

* Corresponding author. Mailing address: University of Arizona Department of Soil, Water, and Environmental Science, Shantz Building #38, Room 429, Tucson, AZ 85721. Phone: (520) 621-9759. Fax: (520) 626-6782. E-mail: jneilson{at}ag.arizona.edu.

{triangledown} Published ahead of print on 6 October 2006.

{dagger} Present address: University of Minnesota Department of Civil Engineering, Minneapolis, Minn.

Applied and Environmental Microbiology, December 2006, p. 7902-7908, Vol. 72, No. 12
0099-2240/06/$08.00+0     doi:10.1128/AEM.01305-06
Copyright © 2006, American Society for Microbiology. All Rights Reserved.



This article has been cited by other articles:

  • Costello, E. K., Halloy, S. R. P., Reed, S. C., Sowell, P., Schmidt, S. K. (2009). Fumarole-Supported Islands of Biodiversity within a Hyperarid, High-Elevation Landscape on Socompa Volcano, Puna de Atacama, Andes. Appl. Environ. Microbiol. 75: 735-747 [Abstract] [Full Text]  


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