Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3389/fmicb.2019.00069 |
| Subsurface Microbial Habitats in an Extreme Desert Mars-Analog Environment | |
| Warren-Rhodes, Kimberley A.1,2; Lee, Kevin C.3; Archer, Stephen D. J.3; Cabrol, Nathalie1,2; Ng-Boyle, Linda4; Wettergreen, David5; Zacny, Kris6; Pointing, Stephen B.7,8; Chong, Guillermo9; Demargasso, Cecilia9; Foil, Greydon10; Tate, Christopher Gayle11; Hare, Trent12; Lacap-Bugler, Donnabella C.13; Moersch, Jeff11; Tanaka, Ken12; Tebes, Cinthya9; Vijayarangan, Srinivasan14; Wagner, Michael10; Wang, Allan15; Wei, Jie15 | |
| 通讯作者 | Pointing, Stephen B. |
| 来源期刊 | FRONTIERS IN MICROBIOLOGY
 |
| ISSN | 1664-302X |
| 出版年 | 2019 |
| 卷号 | 10 |
| 英文摘要 | Sediments in the hyper-arid core of the Atacama Desert are a terrestrial analog to Mars regolith. Understanding the distribution and drivers of microbial life in the sediment may give critical clues on how to search for biosignatures on Mars. Here, we identify the spatial distribution of highly specialized bacterial communities in previously unexplored depth horizons of subsurface sediments to a depth of 800 mm. We deployed an autonomous rover in a mission-relevant Martian drilling scenario with manual sample validation. Subsurface communities were delineated by depth related to sediment moisture. Geochemical analysis indicated soluble salts and minerology that influenced water bio-availability, particularly in deeper sediments. Colonization was also patchy and uncolonized sediment was associated with indicators of extreme osmotic challenge. The study identifies linkage between biocomplexity, moisture and geochemistry in Mars-like sediments at the limit of habitability and demonstrates feasibility of the rover-mounted drill for future Mars sample recovery. |
| 英文关键词 | Atacama desert soil mars moisture stress soil bacteria |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | USA ; New Zealand ; Singapore ; Chile |
| 开放获取类型 | Green Published, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000459848300001 |
| WOS关键词 | ATACAMA DESERT ; DRY VALLEY ; DIVERSITY ; LIFE ; SOIL ; ECOLOGY ; LIMITS |
| WOS类目 | Microbiology |
| WOS研究方向 | Microbiology |
| 来源机构 | United States Geological Survey |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/215782 |
| 作者单位 | 1.NASA, Ames Res Ctr, Mountain View, CA USA; 2.SETI Inst, Mountain View, CA USA; 3.Auckland Univ Technol, Sch Sci, Auckland, New Zealand; 4.Univ Washington, Coll Engn, Seattle, WA 98195 USA; 5.Carnegie Mellon Univ, Inst Robot, Pittsburgh, PA 15213 USA; 6.Honeybee Robot Spacecraft Mech Corp, Pasadena, CA USA; 7.Natl Univ Singapore, Yale NUS Coll, Singapore, Singapore; 8.Natl Univ Singapore, Dept Biol Sci, Singapore, Singapore; 9.Univ Catolica Norte, Antofagasta, Chile; 10.Carnegie Mellon Univ, Pittsburgh, PA 15213 USA; 11.Univ Tennessee, Knoxville, TN 37996 USA; 12.US Geol Survey, 959 Natl Ctr, Reston, VA 22092 USA; 13.Auckland Univ Technol, Auckland, New Zealand; 14.Honeybee Robot & Spacecraft Mech Corp, Pasadena, CA USA; 15.Washington Univ, St Louis, MO 63130 USA |
| 推荐引用方式 GB/T 7714 | Warren-Rhodes, Kimberley A.,Lee, Kevin C.,Archer, Stephen D. J.,et al. Subsurface Microbial Habitats in an Extreme Desert Mars-Analog Environment[J]. United States Geological Survey,2019,10. |
| APA | Warren-Rhodes, Kimberley A..,Lee, Kevin C..,Archer, Stephen D. J..,Cabrol, Nathalie.,Ng-Boyle, Linda.,...&Wei, Jie.(2019).Subsurface Microbial Habitats in an Extreme Desert Mars-Analog Environment.FRONTIERS IN MICROBIOLOGY,10. |
| MLA | Warren-Rhodes, Kimberley A.,et al."Subsurface Microbial Habitats in an Extreme Desert Mars-Analog Environment".FRONTIERS IN MICROBIOLOGY 10(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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