472 K
14 pp.
 
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TitleThe Path of Carbon in Photosynthesis VIII. The Role of Malic Acid
Author(s)Bassham, James A.; Benson, Andrew A.; Calvin, Melvin
Publication DateJanuary 25, 1950
Report NumberUCRL--584
Unique IdentifierACC0311
Other NumbersOSTI ID: 4431795; OSTI ID: 910351
Research OrgErnest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) [LBL][LBNL]; University of California Radiation Laboratory, Berkeley, CA
Contract NoDE-AC02-05CH11231
Sponsoring OrgU.S. Atomic Energy Commission (AEC)
Subject14 Solar Energy; Carbon Cycle; Carbon Dioxide; Fumaric Acid; Malic Acid; Photosynthesis; Succinic Acid; Chemical Reaction Kinetics
KeywordsBiology And Medicine; Carbon 14; Chromatography; Labelled Compounds; Organic Acids; Plants; Radioautography; Tracer Techniques; Carbon Isotopes
Related Web PagesMelvin Calvin and Carbon in Photosynthesis
AbstractMalonate has been found to inhibit the formation of malic acid during short periods of photosynthesis with radioactive carbon dioxide. This result, together with studies which show the photosynthetic cycle to be operating normally at the same time, indicates that malic acid is not an intermediate in photosynthesis but is probably closely related to some intermediate of the cycle. Absence of labeled succinic and fumaric acids in these experiments, in addition to the failure of malonate to inhibit photosynthesis, precludes the participation of these acids as intermediates in photosynthesis.
472 K
14 pp.
 
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