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Digitale Medien

Biosynthesis and metabolism of l-ascorbic acid in virginia creeper (Parthenocissus quinquefolia L.) (1981)

Helsper, Johnnes P. F. G. ; Saito, Kazumi ; Loewus, Frank A.

Springer

Planta 152 (1981), S. 171-176

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Details

ISSN: 1432-2048

Schlagwort(e): Ascorbic acid biosynthesis/metabolism ; Tartaric acid biosynthesis ; Glycolaldehyde ; Vitaceae

Quelle: Springer Online Journal Archives 1860-2000

Thema: Biologie

Notizen: Abstract Detached leaves of Parthenocissus quinquefolia L., Vitaceae convert d-glucose to l-ascorbic acid with conservation of the carbon chain sequence and with retention of the hydroxymethyl group at carbon 6. l-Ascorbic acid is cleaved between carbons 4 and 5. The C4 fragment is converted to l-tartaric acid. The C2 fragment, possibly glycolaldehyde, recycles into products of hexose phosphate metabolism. During the metabolic period a relatively high portion of carbon-1 of l-ascorbic acid, as compared with carbon-4, was released as CO2. These studies demonstrate the usefulness of Virginia Creeper for yeararound research on ascorbic-acid metabolism and tartaric-acid biosynthesis in Vitaceae-type plants.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00391190

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