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Record Details

Record 9 of 412
Effects of solar ultraviolet radiations on Bacillus subtilis spores and T-7 bacteriophage
Author and Affiliation:
Spizizen, J.
Isherwood, J. E.(Scripps Clinic and Research Foundation, La Jolla, Calif., United States)
Taylor, G. R.(NASA Johnson Space Center, Houston, Tex., United States)
Abstract: Spores of Bacillus subtilis HA 101 and the DNA polymerase I-defective mutant HA 101 (59)F were exposed to selected wavelengths of solar ultraviolet light and space vacuum during the return of Apollo 16. In addition, coliphage T-7 suspensions were exposed to solar ultraviolet radiation as part of the Microbial Response to Space Environment Experiment. Optical filters were employed to provide different energy levels at wavelengths 254 nm and 280 nm. Dose-response curves for lethal and mutagenic effects were compared with ground-based data. A close parallel was observed between the results of solar radiation and ground tests with spores of the two strains. However, significantly greater inactivation of T-7 bacteriophage was observed after exposure to solar ultraviolet radiation.
Publication Date: Jan 01, 1975
Document ID:
19750060071
(Acquired Dec 01, 1995)
Accession Number: 75A44143
Subject Category: LIFE SCIENCES (GENERAL)
Document Type: Conference Proceedings
Publication Information: SEE A75-44126 22-51
Publisher Information: German Democratic Republic
Meeting Information: 17th Life sciences and space research XIII; Seventeenth Plenary Meeting; June 17, 1974-July 1, 1974; Sao Paulo; Brazil
Financial Sponsor: NASA; United States
Description: 7p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: BACILLUS; BACTERIOPHAGES; RADIATION EFFECTS; SOLAR RADIATION; SPORES; ULTRAVIOLET RADIATION; BIOLOGICAL EFFECTS; DEOXYRIBONUCLEIC ACID; MICROORGANISMS; RADIATION DOSAGE; SPACE ENVIRONMENT SIMULATION
Imprint And Other Notes: In: Life sciences and space research XIII; Proceedings of the Seventeenth Plenary Meeting, Sao Paulo, Brazil, June 17-July 1, 1974. (A75-44126 22-51) Berlin, East Germany, Akademie-Verlag GmbH, 1975, p. 143-149.
Availability Source: Other Sources
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