Extremophiles survival to simulated space conditions: an astrobiology model study.
Orig Life Evol Biosph
; 44(3): 231-7, 2014 Sep.
Article
in En
| MEDLINE
| ID: mdl-25573749
In this work we investigated the ability of four extremophilic bacteria from Archaea and Bacteria domains to resist to space environment by exposing them to extreme conditions of temperature, UV radiation, desiccation coupled to low pressure generated in a Mars' conditions simulator. All the investigated extremophilic strains (namely Sulfolobus solfataricus, Haloterrigena hispanica, Thermotoga neapolitana and Geobacillus thermantarcticus) showed a good resistance to the simulation of the temperature variation in the space; on the other hand irradiation with UV at 254 nm affected only slightly the growth of H. hispanica, G. thermantarcticus and S. solfataricus; finally exposition to Mars simulated condition showed that H. hispanica and G. thermantarcticus were resistant to desiccation and low pressure.
Full text:
1
Database:
MEDLINE
Main subject:
Space Simulation
/
Euryarchaeota
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Thermotoga neapolitana
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Sulfolobus solfataricus
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Geobacillus
Language:
En
Journal:
Orig Life Evol Biosph
Journal subject:
BIOLOGIA
/
BIOLOGIA MOLECULAR
Year:
2014
Type:
Article