Survival of microorganisms under simulated space conditions.
Monocellular layers of stationary phase cells of Escherichia coli B/r were exposed to high vacuum of 10(-6) Torr at different temperatures. After simultaneous irradiation with UV of 254 nm or X-rays, the survival was tested as colony forming ability. In vacuum the sensitivity to UV and X-rays was enhanced compared with the controls at atmospheric pressure. Of UV-inactivation in vacuum no photoreactivation was found.
Bucker
H
H
Arbeitsgruppe fur biophysikalische Weltraumforschung, Universitat Frankfurt/Main, Federal Republic of Germany.
Horneck
G
G
D001274:Atmospheric Pressure; D004926:Escherichia coli / Q000254:growth & development / Q000502:physiology* / Q000528:radiation effects; D005118:Extraterrestrial Environment; D018561:Space Simulation; D013696:Temperature; D014466:Ultraviolet Rays; D014618:Vacuum; D014965:X-Rays