Actions for Effects of light on respiration and development of photosynthetic cells. Renewal application and progress report, March 1-November 1, 1980 [electronic resource].

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Effects of light on respiration and development of photosynthetic cells. Renewal application and progress report, March 1-November 1, 1980 [electronic resource].

Published
Washington, D.C. : United States. Department of Energy. Office of Management, 1980.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
Pages: 13 : digital, PDF file
Additional Creators
United States. Department of Energy. Office of Management and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The oxyhydrogen reaction in the presence and absence of CO/sub 2/ was studied in H/sub 2/- adapted Scenedesmus obliquus by monitoring the initial rates of H/sub 2/, O/sub 2/, and /sup 14/CO/sub 2/ uptake and the effect of inhibitors on these rates. Glucose and acetate respiration was competitive with H/sub 2/ uptake. KCN inhibited equally respiration and the oxyhydrogen reaction in the presence and absence of CO/sub 2/. It was concluded that the oxyhydrogen reaction both in the absence and presence of CO/sub 2/ has properties in common with components of respiration and photosynthesis. Participation of these two processes in the oxyhydrogen reaction would require a closely linked shuttle between mitochondrion and chloroplast. Protoplasts and chloroplasts will be isolated from a H/sub 2/-adapted alga in order to elucidate the cooperation between the two organelles. Acetate was shown to stimulate H/sub 2/ photoproduction in H/sub 2/-adapted algae even more so than an uncoupler of electron transport. The role of these compounds will be evaluated either in terms of the glyoxylate cycle or electron acceptors resulting in formation of alcohols. The term chloroplast respiration was proposed to account for the breakdown of polyglucan within the chloroplast. A means of reoxidizing reduced pyridine nucleotide was required to complete the cycle. A new enzyme ascorbic acid reduced pyridine nucleotide peroxidase was isolated from the chloroplast. The characterization of this enzyme will continue.
Report Numbers
E 1.99:doe/er/03231-5
doe/er/03231-5
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Other Subject(s)
Note
Published through SciTech Connect.
11/20/1980.
"doe/er/03231-5"
Gibbs, M.
Funding Information
AS02-76ER03231
View MARC record | catkey: 13814672