24 pp.
24 pp.
| 1024 K 24 pp. | |
| View Document | ||
| Title | The Path of Carbon in Photosynthesis XVI. Kinetic Relationships of the Intermediates in Steady State Photosynthesis | |
| Author(s) | Benson, A. A.; Kawaguchi, S.; Hayes, P.; Calvin, M. | |
| Publication Date | June 05, 1952 | |
| Report Number | UCRL--1658-Rev. | |
| Unique Identifier | ACC0319 | |
| Other Numbers | OSTI ID: 915057 | |
| Research Org | University of California Radiation Laboratory, Berkeley, CA; Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US) [LBL][LBNL] | |
| Contract No | W-7405-eng-48; DE-AC02-05CH11231 | |
| Sponsoring Org | U.S. Atomic Energy Commission (AEC) | |
| Subject | 14 Solar Energy; Carbon Cycle; Carbon Dioxide; Carboxylation; Fructose; Glucose; Chemical Reaction Kinetics; Malic Acid; Phosphates; Photosynthesis; Ribulose; Saccharides; Carbon 14 Compounds; Reaction Intermediates | |
| Keywords | Biology And Medicine; Biochemistry; Carbon 14; Chromatography; Labelled Compounds; Light; Organic Acids; Organic Compounds; Phosphorylation; Photochemistry; Radioactivity; Reaction Kinetics; Ribulose; Sedoheptulose; Sugars | |
| Related Web Pages | Melvin Calvin and Carbon in Photosynthesis | |
| Abstract | A kinetic study of the accumulation of C{sup 14} in the intermediates of steady state photosynthesis in C{sup 14}O{sub 2} provides information regarding the sequence of reactions involved. The work described applied the radio-chromatographic technique for analysis of the labeled early products. The simultaneous carboxylation reaction resulting in malic acid as well as phosphoglycerate is demonstrated in experiments at high light intensity. A comparison of radioactivities in a number of phosphorylated sugars as a function of time reveals concurrent synthesis of fructose and sedoheptulose phosphates followed by that of ribulose phosphates and later by that of glucose phosphates. The possibility that the cleavage of C{sub 4} compounds to C{sub 2} carbon dioxide acceptors may involve C{sub 7} and C{sub 5} sugars and evidence for this mechanism is presented. | |
| 1024 K 24 pp. | |
| View Document | ||
