Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1974 Nov;54(5):784-7.
doi: 10.1104/pp.54.5.784.

l-Ascorbic Acid Metabolism in Vitaceae: Conversion to (+)-Tartaric Acid and Hexoses

G Wagner  1 , F A Loewus
Affiliations

l-Ascorbic Acid Metabolism in Vitaceae: Conversion to (+)-Tartaric Acid and Hexoses

G Wagner et al. Plant Physiol. 1974 Nov.

Abstract

The metabolic fate of l-ascorbic acid-1-(14)C and -6-(14)C has been investigated in two species in two genera of Vitaceae. Results suggest that ascorbic acid metabolism in the Vitaceae involves splitting the 6-carbon chain into 4- and 2-carbon fragments. The former, corresponding to C1 through C4 of ascorbic acid, is further oxidized to tartaric acid while the latter, corresponding to C5 and C6, is recycled into hexose phosphate metabolism. Comparison of these findings with previous observations on the conversion of ascorbic acid to (+)-tartaric acid in Pelargonium crispum clearly reveals two distinct processes of tartaric acid biosynthesis in those plants identified as tartaric acid accumulators.

PubMed Disclaimer

References

    1. Plant Physiol. 1958 Mar;33(2):155-6 - PubMed
    1. Plant Physiol. 1958 May;33(3):194-9 - PubMed
    1. Plant Physiol. 1973 Dec;52(6):651-4 - PubMed
    1. Biochim Biophys Acta. 1958 Dec;30(3):629-35 - PubMed
    1. Nature. 1950 Sep 9;166(4219):444-5 - PubMed

LinkOut - more resources