Abstract In order to evaluate the function of the circadian timing system in space, the circadian rhythm of conidiation of the fungus was monitored in constant darkness on the STS 9 flight of the Space Shuttle Columbia. During the first 7 days of spaceflight many tubes showed a marked reduction in the apparent amplitude of the conidiation rhythm, and some cultures appeared arrhythmic. There was more variability in the growth rate and circadian rhythms of individual cultures in space than is usually seen on earth. The results of this experiment indicate that while the circadian rhythm of conidiation can persist outside of the earth's environment, either the timekeeping process or its expression is altered in space.
Preliminary characterization of persisting circadian rhythms during space flight
Advances in Space Research ; 4 , 10 ; 39-46
1984-01-01
8 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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