Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11084-012-9289-y |
Microbial Colonization of the Salt Deposits in the Driest Place of the Atacama Desert (Chile) | |
Stivaletta, Nunzia1; Barbieri, Roberto1; Billi, Daniela2 | |
通讯作者 | Stivaletta, Nunzia |
会议名称 | 11th European Workshop on Astrobiology of the European-Astrobiology-Network-Association (EANA) |
会议日期 | JUL 11-14, 2011 |
会议地点 | Cologne, GERMANY |
英文摘要 | The Atacama Desert (Chile), one of the most arid places on Earth, shows hostile conditions for the development of epilithic microbial communities. In this study, we report the association of cyanobacteria (Chroococcidiopsis sp.) and bacteria belonging to Actinobacteria and Beta-Gammaproteobacteria and Firmicutes phyla inhabiting the near surface of salt (halite) deposits of the Salar Grande Basin, Atacama Desert (Chile). The halite deposits were investigated by using optical, confocal and field emission scanning electron microscopes, whereas culture-independent molecular techniques, 16S rDNA clone library, alongside RFLP analysis and 16S rRNA gene sequencing were applied to investigate the bacterial diversity. These microbial communities are an example of life that has adapted to extreme environmental conditions caused by dryness, high irradiation, and metal concentrations. Their adaptation is, therefore, important in the investigation of the environmental conditions that might be expected for life outside of Earth. |
英文关键词 | Atacama Desert Halite Endoliths 16S rDNA clone library Extremophiles |
来源出版物 | ORIGINS OF LIFE AND EVOLUTION OF BIOSPHERES |
ISSN | 0169-6149 |
EISSN | 1573-0875 |
出版年 | 2012 |
卷号 | 42 |
期号 | 2-3 |
页码 | 187-200 |
出版者 | SPRINGER |
类型 | Article;Proceedings Paper |
语种 | 英语 |
国家 | Italy |
收录类别 | SCI-E ; CPCI-S |
WOS记录号 | WOS:000305985800009 |
WOS关键词 | CYANOBACTERIUM CHROOCOCCIDIOPSIS ; NORTHERN CHILE ; MARS ; ORIGIN ; LIFE ; ARIDITY ; SEARCH ; ROCKS |
WOS类目 | Biology |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/300154 |
作者单位 | 1.Univ Bologna, Dipartimento Sci Terra & Geol Ambientali, I-40126 Bologna, Italy; 2.Univ Roma Tor Vergata, Dipartimento Biol, I-00133 Rome, Italy |
推荐引用方式 GB/T 7714 | Stivaletta, Nunzia,Barbieri, Roberto,Billi, Daniela. Microbial Colonization of the Salt Deposits in the Driest Place of the Atacama Desert (Chile)[C]:SPRINGER,2012:187-200. |
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