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The Response of Bacillus subtilis to Simulated Martian Conditions and to the Space Environment

Rettberg, Petra (2007) The Response of Bacillus subtilis to Simulated Martian Conditions and to the Space Environment. In: Microorganisms and the Martian Environment - Report of the ROME Topical Team ESA-SP-1298

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Abstract

Bacillus subtilis is a non-pathogenic, gram-positive, rod-shaped, aerobic, ubiquitous bacterium that is commonly found in soil. It has become widely adopted as a model organism for laboratory studies on the survivability under extreme conditions like those on Mars. The metabolically inactive resting form of this bacterium, the spore, is usually more resistant to various environmental stresses than its counterpart, the vegetative form. Its genome is completely sequenced and the genetics and physiology of DNA protection and repair is well understood. The high resistance of B. subtilis spores is mainly due to a dehydrated, highly mineralised core enclosed in a thick protective envelop, the cortex and the spore coat layers, and the saturation of their DNA with small, acid-soluble proteins whose binding greatly alters the chemical and enzymatic reactivity of the DNA (Setlow, 1995)

Item URL in elib:https://elib.dlr.de/54278/
Document Type:Contribution to a Collection
Title:The Response of Bacillus subtilis to Simulated Martian Conditions and to the Space Environment
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Rettberg, PetraUNSPECIFIEDUNSPECIFIED
Date:2007
Journal or Publication Title:Microorganisms and the Martian Environment - Report of the ROME Topical Team ESA-SP-1298
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmailEditor's ORCID iD
Cockell, Charles S. (Editor)UNSPECIFIEDUNSPECIFIED
ESA, ESTEC, Noordwijk, UNSPECIFIEDUNSPECIFIED
Status:Published
Keywords:Mars, Bacillus subtilis
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W FR - Forschung unter Weltraumbedingungen (old)
DLR - Research area:Space
DLR - Program:W FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):W - Vorhaben Strahlenbiologie (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerospace Medicine > Radiation Biology
Deposited By: Kopp, Kerstin
Deposited On:19 Jun 2008
Last Modified:27 Apr 2009 14:59

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