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Effects of aeolian erosion on microbial release from solids.This study was initiated to determine the percentage of spores that would be expected to be released from the interior of solid materials by aeolian erosion on a planetary surface. Methyl methacrylate and Eccobond disks were fabricated so that each disk contained approximately 40,000 Bacillus subtilis var. niger spores. The disks were placed in a specially designed sandblasting device and eroded. Exposure periods of 0.5, 2 and 24 hours were investigated using filtered air to accelerate the sand. A series of tests was also conducted for a 0.5 hour period using carbon dioxide. Examination of the erosion products showed that less than 1% of the spores originally contained in the solids was released by aeolian erosion.
Document ID
19720059718
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Gustan, E. A.
Olson, R. L.
(Boeing Co. Seattle, Wash., United States)
Taylor, D. M.
Green, R. H.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1972
Subject Category
Biosciences
Accession Number
72A43384
Funding Number(s)
CONTRACT_GRANT: JPL-952916
Distribution Limits
Public
Copyright
Other

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