Bacterial community structure in the hyperarid core of the Atacama Desert, Chile

被引：137
作者：
Drees, Kevin P.
Neilson, Julia W.
Betancourt, Julio L.
Quade, Jay
Henderson, David A.
Pryor, Barry M.
Maier, Raina M.
机构：
[1] Univ Arizona, Dept Soil Water & Environm Sci, Tucson, AZ 85721 USA
[2] US Geol Survey, Tucson, AZ 85721 USA
[3] Univ Arizona, Desert Lab, Tucson, AZ 85721 USA
[4] Univ Arizona, Dept Geosci, Tucson, AZ 85721 USA
[5] Univ Arizona, Dept Anim Sci, Tucson, AZ 85721 USA
[6] Univ Arizona, Dept Plant Sci, Tucson, AZ 85721 USA
来源：
APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 2006年 / 72卷 / 12期
关键词：
D O I：
10.1128/AEM.01305-06
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Soils from the hyperarid Atacama Desert of northern Chile were sampled along an east-west elevational transect (23.75 to 24.70 degrees 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.
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收藏
页码：7902 / 7908
页数：7
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