Arid
DOI10.1111/1462-2920.14106
Fundamental drivers for endolithic microbial community assemblies in the hyperarid Atacama Desert
Meslier, Victoria1; Cristina Casero, M.2; Dailey, Micah1; Wierzchos, Jacek2; Ascaso, Carmen2; Artieda, Octavio3; McCullough, P. R.4; DiRuggiero, Jocelyne1
通讯作者DiRuggiero, Jocelyne
来源期刊ENVIRONMENTAL MICROBIOLOGY
ISSN1462-2912
EISSN1462-2920
出版年2018
卷号20期号:5页码:1765-1781
英文摘要

In hyperarid deserts, endolithic microbial communities colonize the rocks’ interior as a survival strategy. Yet, the composition of these communities and the drivers promoting their assembly are still poorly understood. We analysed the diversity and community composition of endoliths from four different lithic substrates - calcite, gypsum, ignimbrite and granite - collected in the hyperarid zone of the Atacama Desert, Chile. By combining microscopy, mineralogy, spectroscopy and high throughput sequencing, we found these communities to be highly specific to their lithic substrate, although they were all dominated by the same four main phyla, Cyanobacteria, Actinobacteria, Chioroflexi and Proteobacteria. Our finding indicates a fine scale diversification of the microbial reservoir driven by substrate properties. The data suggest that the overall rock chemistry and the light transmission properties of the substrates are not essential drivers of community structure and composition. Instead, we propose that the architecture of the rock, i.e., the space available for colonization and its physical structure, linked to water retention capabilities, is ultimately the driver of community diversity and composition at the dry limit of life.


类型Article
语种英语
国家USA ; Spain
收录类别SCI-E
WOS记录号WOS:000445161800011
WOS关键词MCMURDO DRY VALLEYS ; LIGHT PENETRATION ; TAYLOR VALLEY ; NEGEV-DESERT ; WATER SOURCE ; ROSS DESERT ; ARID ZONE ; LIFE ; DIVERSITY ; GYPSUM
WOS类目Microbiology
WOS研究方向Microbiology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/209042
作者单位1.Johns Hopkins Univ, Dept Biol, Baltimore, MD 21218 USA;
2.CSIC, Museo Nacl Ciencias Nat, Madrid, Spain;
3.Univ Extremadura, Dept Biol Vegetal Ecol & ciencias Tierra, Plasencia, Spain;
4.Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
推荐引用方式
GB/T 7714
Meslier, Victoria,Cristina Casero, M.,Dailey, Micah,et al. Fundamental drivers for endolithic microbial community assemblies in the hyperarid Atacama Desert[J],2018,20(5):1765-1781.
APA Meslier, Victoria.,Cristina Casero, M..,Dailey, Micah.,Wierzchos, Jacek.,Ascaso, Carmen.,...&DiRuggiero, Jocelyne.(2018).Fundamental drivers for endolithic microbial community assemblies in the hyperarid Atacama Desert.ENVIRONMENTAL MICROBIOLOGY,20(5),1765-1781.
MLA Meslier, Victoria,et al."Fundamental drivers for endolithic microbial community assemblies in the hyperarid Atacama Desert".ENVIRONMENTAL MICROBIOLOGY 20.5(2018):1765-1781.
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