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Title
Halophilic archaea : life with desiccation, radiation and oligotrophy over geological times
AuthorStan-Lotter, Helga ; Fendrihan, Sergiu
Published in
Life, Basel, 2015, Vol. 2015, Issue 5, page 1487-1496
PublishedMDPI, 2015
LanguageEnglish
Document typeJournal Article
Keywords (EN)Halococcus species / Halococcus salifodinae / Haloarchaea / long-term survival / halomucin / polyploidy / ancient salt deposit / extraterrestrial halite
ISSN2075-1729
URNurn:nbn:at:at-ubs:3-3547 Persistent Identifier (URN)
DOI:10.3390/life5031487 
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 The work is publicly available
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Halophilic archaea [0.58 mb]
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Abstract (English)

Halophilic archaebacteria (Haloarchaea) can survive extreme desiccation, starvation and radiation, sometimes apparently for millions of years. Several of the strategies that are involved appear specific for Haloarchaea (for example, the formation of halomucin, survival in fluid inclusions of halite), and some are known from other prokaryotes (dwarfing of cells, reduction of ATP). Several newly-discovered haloarchaeal strategies that were inferred to possibly promote long-term survivalhalomucin, polyploidy, usage of DNA as a phosphate storage polymer, production of spherical dormant stagesremain to be characterized in detail. More information on potential strategies is desirable, since evidence for the presence of halite on Mars and on several moons in the solar system increased interest in halophiles with respect to the search for extraterrestrial life. This review deals in particular with novel findings and hypotheses on haloarchaeal long-term survival.

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CC-BY-License (4.0)Creative Commons Attribution 4.0 International License