The solar UV environment and bacterial spore UV resistance: considerations for Earth-to-Mars transport by natural processes and human spaceflight

被引：140

作者：

Nicholson, WL

Schuerger, AC

Setlow, P

机构：

[1] Univ Connecticut, Ctr Hlth, Dept Mol Microbial & Struct Biol, Farmington, CT 06030 USA

[2] Univ Florida, Dept Microbiol & Cell Sci, Kennedy Space Ctr, FL 32899 USA

[3] Univ Florida, Dept Plant Pathol, Space Life Sci Lab, Kennedy Space Ctr, Kennedy Space Ctr, FL 32899 USA

来源：

MUTATION RESEARCH-FUNDAMENTAL AND MOLECULAR MECHANISMS OF MUTAGENESIS | 2005年 / 571卷 / 1-2期

基金：

美国国家航空航天局; 美国国家卫生研究院;

关键词：

spores; Bacillus; spore resistance; UV resistance; planetary protection; interplanetary transfer;

D O I：

10.1016/j.mrfmmm.2004.10.012

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The environment in space and on planets such as Mars can be lethal to microorganisms because of the high vacuum and high solar radiation flux, in particular UV radiation, in such environments. Spores of various Bacillus species are among the organisms most resistant to the lethal effects of high vacuum and UV radiation, and as a consequence are of major concern for planetary contamination via unmanned spacecraft or even natural processes. This review focuses on the spores of various Bacillus species: (i) their mechanisms of UV resistance; (ii) their survival in unmanned spacecraft, space flight and simulated space flight and Martian conditions; (iii) the UV flux in space and on Mars; (iv) factors affecting spore Survival in such high UV flux environments. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：249 / 264

页数：16

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