Arid
DOI10.1007/s00300-016-2024-9
Endolithic microbial diversity in sandstone and granite from the McMurdo Dry Valleys, Antarctica
Archer, Stephen D. J.1,2; de los Rios, Asuncion3; Lee, Kevin C.1,2; Niederberger, Thomas S.2; Cary, S. Craig2,4; Coyne, Kathryn J.4; Douglas, Susanne5; Lacap-Bugler, Donnabella C.1; Pointing, Stephen B.1,2,6
通讯作者Pointing, Stephen B.
来源期刊POLAR BIOLOGY
ISSN0722-4060
EISSN1432-2056
出版年2017
卷号40期号:5页码:997-1006
英文摘要

Cryptic microbial communities develop within rocky substrates in Antarctica’s McMurdo Dry Valleys as a stress avoidance strategy. They may be cryptoendolithic within pore spaces of weathered rocks, or develop in cracks and fissures as chasmoendolithic communities and are characterised by coloured bands of colonisation. Here we used a precision drill to recover fractions from black, white, green and red layers within colonised granite and sandstone. We combined backscattered scanning electron microscopy and high-throughput sequencing to identify major taxa in each band. We confirmed the presence of algal and fungal lichen symbionts, cyanobacteria and free-living algae, plus a diverse heterotrophic bacterial and archaeal component. A clear delineation at the community level was observed. The relatively biodiverse and heterogenous lichen communities occurred in weathered sandstone cliffs, whilst in granite and sandstone boulders, cyanobacterial communities were dominant. Differences between coloured bands of colonisation within each community were less clear. The study demonstrates that endolithic microbial communities can be recovered using a drill technology similar to that planned for the search for endolithic biosignatures on Mars.


英文关键词Antarctica Astrobiology Chasmoendolith Cryptoendolith Cyanobacteria Lichen
类型Article
语种英语
国家New Zealand ; Spain ; USA ; Japan
收录类别SCI-E
WOS记录号WOS:000402123800004
WOS关键词COLD DESERT ; BACTERIAL COMMUNITIES ; VICTORIA LAND ; SOILS ; ROCKS ; CYANOBACTERIA ; ECOLOGY ; MICROORGANISMS ; COLONIZATION ; BIOGEOGRAPHY
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/201697
作者单位1.Auckland Univ Technol, Inst Appl Ecol New Zealand, Sch Appl Sci, Auckland 1010, New Zealand;
2.Univ Waikato, Sch Sci, Int Ctr Terr Antarctic Res, Hamilton 3240, New Zealand;
3.CSIC, Museo Nacl Ciencias Nat, Madrid 28006, Spain;
4.Univ Delaware, Coll Earth Ocean & Environm, Lewes, DE 19716 USA;
5.CALTECH, Jet Prop Lab, 4800 Oak Grove Dr, Pasadena, CA 91109 USA;
6.Kanazawa Univ, Inst Nat & Environm Technol, Kakuma Machi, Kanazawa, Ishikawa 9201192, Japan
推荐引用方式
GB/T 7714
Archer, Stephen D. J.,de los Rios, Asuncion,Lee, Kevin C.,et al. Endolithic microbial diversity in sandstone and granite from the McMurdo Dry Valleys, Antarctica[J],2017,40(5):997-1006.
APA Archer, Stephen D. J..,de los Rios, Asuncion.,Lee, Kevin C..,Niederberger, Thomas S..,Cary, S. Craig.,...&Pointing, Stephen B..(2017).Endolithic microbial diversity in sandstone and granite from the McMurdo Dry Valleys, Antarctica.POLAR BIOLOGY,40(5),997-1006.
MLA Archer, Stephen D. J.,et al."Endolithic microbial diversity in sandstone and granite from the McMurdo Dry Valleys, Antarctica".POLAR BIOLOGY 40.5(2017):997-1006.
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