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A study of phycophysiology in controlled environmentsIn an attempt to understand the responses of CHLORELLA to various quantities and qualities of light in space flight life support system, studies were designed to give the maximum rates of growth as well as maximum yields at different densities of algae under different light intensities, and under light of different wave lengths. The results of studies on the effects of light on algal growth revealed that the effect was not only positive, as had been assumed in the case of photosynthesis, but that light had a negative action also. Light at the blue end of the spectrum was clearly inhibitory to cell division and vegetative reproduction. Carbon dioxide also limited growth by inhibition of cell divisions in CHLORELLA as well as in the colorless yeast SACCHAROMYCES.
Document ID
19730024306
Document Type
Contractor Report (CR)
Authors
Krauss, R. W. (Maryland Univ. College Park, MD, United States)
Date Acquired
September 2, 2013
Publication Date
February 15, 1973
Subject Category
BIOSCIENCES
Report/Patent Number
NASA-CR-135796
SASR-24
TR-1024
Funding Number(s)
CONTRACT_GRANT: NGR-21-002-003
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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