Abstract
Labeled tartaric acids from Pelargonium crispum apices which had been fed l-ascorbic acid-6-14C and Vitis labrusca and Parthenocissus inserta tissues which had been fed l-ascorbic acid-1-14C were examined by chemical means to determine chiral configuration. In each instance, label was associated with (+)-tartaric acid.
Similar experiments with labeled tartaric acid from P. crispum which had been labeled with d-glucose-1-14C or -6-14C led to the same result. No evidence was obtained for formation of labeled meso-tartaric acid in experiments described above. The recent suggestion of H. Ruffner and D. Rast (Z. Pflanzenphysiol. 73: 45-55, 1974) that conversion of l-ascorbic acid to tartaric acid in plants is a nonenzymatic process is re-examined in the light of present findings.
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Selected References
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- Chang W. H., Tolbert N. E. Excretion of Glycolate, Mesotartrate and Isocitrate Lactone by Synchronized Cultures of Ankistrodesmus braunii. Plant Physiol. 1970 Sep;46(3):377–385. doi: 10.1104/pp.46.3.377. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Loewus F. A., Stafford H. A. Observations on the Incorporation of C into Tartaric Acid and the Labeling Pattern of D-Glucose from an Excised Grape Leaf Administered L-Ascorbic Acid-6-C. Plant Physiol. 1958 Mar;33(2):155–156. doi: 10.1104/pp.33.2.155. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Oettmeier W., Heupel A. p-Coumaroyl-meso-tartaric acid from spinach chloroplast preparations. Z Naturforsch B. 1972 May;27(5):586–587. doi: 10.1515/znb-1972-0531. [DOI] [PubMed] [Google Scholar]
- Wagner G., Loewus F. A. l-Ascorbic Acid Metabolism in Vitaceae: Conversion to (+)-Tartaric Acid and Hexoses. Plant Physiol. 1974 Nov;54(5):784–787. doi: 10.1104/pp.54.5.784. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Wagner G., Loewus F. The Biosynthesis of (+)-Tartaric Acid in Pelargonium crispum. Plant Physiol. 1973 Dec;52(6):651–654. doi: 10.1104/pp.52.6.651. [DOI] [PMC free article] [PubMed] [Google Scholar]