Arid
DOI10.1089/ast.2009.0430
Damage Escape and Repair in Dried Chroococcidiopsis spp. from Hot and Cold Deserts Exposed to Simulated Space and Martian Conditions
Billi, Daniela1; Viaggiu, Emanuela1; Cockell, Charles S.2; Rabbow, Elke3; Horneck, Gerda3; Onofri, Silvano4
通讯作者Billi, Daniela
来源期刊ASTROBIOLOGY
ISSN1531-1074
EISSN1557-8070
出版年2011
卷号11期号:1页码:65-73
英文摘要

The cyanobacterium Chroococcidiopsis, overlain by 3mm of Antarctic sandstone, was exposed as dried multi-layers to simulated space and martian conditions. Ground-based experiments were conducted in the context of Lichens and Fungi Experiments (EXPOSE-E mission, European Space Agency), which were performed to evaluate, after 1.5 years on the International Space Station, the survival of cyanobacteria (Chroococcidiopsis), lichens, and fungi colonized on Antarctic rock. The survival potential and the role played by protection and repair mechanisms in the response of dried Chroococcidiopsis cells to ground-based experiments were both investigated. Different methods were employed, including evaluation of the colony-forming ability, single-cell analysis of subcellular integrities based on membrane integrity molecular and redox probes, evaluation of the photosynthetic pigment autofluorescence, and assessment of the genomic DNA integrity with a PCR-based assay. Desiccation survivors of strain CCMEE 123 (coastal desert, Chile) were better suited than CCMEE 134 (Beacon Valley, Antarctica) to withstand cellular damage imposed by simulated space and martian conditions. Exposed dried cells of strain CCMEE 123 formed colonies, maintained subcellular integrities, and, depending on the exposure conditions, also escaped DNA damage or repaired the induced damage upon rewetting.


英文关键词Astrobiology Endolithic cyanobacteria Chroococcidiopsis Ground-based experiments
类型Article
语种英语
国家Italy ; England ; Germany
收录类别SCI-E
WOS记录号WOS:000287689200007
WOS关键词CYANOBACTERIUM CHROOCOCCIDIOPSIS ; BACILLUS-SUBTILIS ; DESICCATION ; LIFE ; MICROORGANISMS ; TARDIGRADES ; ENVIRONMENT ; RESISTANCE ; TOLERANCE ; VIABILITY
WOS类目Astronomy & Astrophysics ; Biology ; Geosciences, Multidisciplinary
WOS研究方向Astronomy & Astrophysics ; Life Sciences & Biomedicine - Other Topics ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167188
作者单位1.Univ Roma Tor Vergata, Dipartimento Biol, I-00133 Rome, Italy;
2.Open Univ, Milton Keynes MK7 6AA, Bucks, England;
3.DLR, Inst Aerosp Med, Cologne, Germany;
4.Univ Tuscia, Dipartimento Ecol & Sviluppo Econ Sostenibile, Viterbo, Italy
推荐引用方式
GB/T 7714
Billi, Daniela,Viaggiu, Emanuela,Cockell, Charles S.,et al. Damage Escape and Repair in Dried Chroococcidiopsis spp. from Hot and Cold Deserts Exposed to Simulated Space and Martian Conditions[J],2011,11(1):65-73.
APA Billi, Daniela,Viaggiu, Emanuela,Cockell, Charles S.,Rabbow, Elke,Horneck, Gerda,&Onofri, Silvano.(2011).Damage Escape and Repair in Dried Chroococcidiopsis spp. from Hot and Cold Deserts Exposed to Simulated Space and Martian Conditions.ASTROBIOLOGY,11(1),65-73.
MLA Billi, Daniela,et al."Damage Escape and Repair in Dried Chroococcidiopsis spp. from Hot and Cold Deserts Exposed to Simulated Space and Martian Conditions".ASTROBIOLOGY 11.1(2011):65-73.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Billi, Daniela]的文章
[Viaggiu, Emanuela]的文章
[Cockell, Charles S.]的文章
百度学术
百度学术中相似的文章
[Billi, Daniela]的文章
[Viaggiu, Emanuela]的文章
[Cockell, Charles S.]的文章
必应学术
必应学术中相似的文章
[Billi, Daniela]的文章
[Viaggiu, Emanuela]的文章
[Cockell, Charles S.]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。