ASCORBIC-ACID METABOLISM IN GERANIUM AND GRAPE

被引：26

作者：

WILLIAMS, M ^{[1
]}

SAITO, K ^{[1
]}

LOEWUS, FA ^{[1
]}

机构：

[1] WASHINGTON STATE UNIV,DEPT AGRI CHEM,PULLMAN,WA 99164

来源：

PHYTOCHEMISTRY | 1979年 / 18卷 / 06期

关键词：

biosynthesis; d-ascorbic acid; Geraniaceae; geranium; grape; l-(+)-tartaric acid; l-ascorbic acid; metabolism; oxalic acid; Pelargonium crispum; Vitaceae; Vitis labrusca;

D O I：

10.1016/S0031-9422(00)91456-0

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

l-Ascorbic acid-[UL-14C] has been used to follow the appearance of 14C-labeled oxalic acid and tartaric acid as metabolic products of oxidative cleavage of ascorbic acid in geranium apices (Pelargonium crispum). The enantiomeric specificity of ascorbic acid metabolism was established in geranium by comparing the incorporation of d- and l-ascorbic acid-[6-14C] in the presence of l-ascorbic acid-[4-3H]. l-Ascorbic acid-[4-3H] has been used to demonstrate the retention of 3H during biosynthesis of l-(+)-tartaric acid in the geranium and its exchange with water during biosynthesis of l-( +)-tartaric acid in the grape. © 1979.

引用

页码：953 / 956

页数：4

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