METABOLISM OF ABSCISIC-ACID AND OCCURRENCE OF EPI-DIHYDROPHASEIC ACID IN PHASEOLUS-VULGARIS

被引：111

作者：

ZEEVAART, JAD ^{[1
]}

MILBORROW, BV ^{[1
]}

机构：

[1] SHELL RES LTD MILSTEAD LAB CHEM ENZYMOL SITTINGBOU, SITTINGBOURNE ME9 8AG, KENT, ENGLAND

来源：

PHYTOCHEMISTRY | 1976年 / 15卷 / 04期

关键词：

D O I：

10.1016/S0031-9422(00)88955-4

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：

When (.+-.)-abscisic acid-[2-14C] or (.+-.)-abscisic acid-[4''-18O] was fed to bean (P. vulgaris) shoots, phaseic acid (PA) and dihydrophaseic acid (DPA) were the major metabolites, while epi-dihydrophaseic acid (epi-DPA) appeared as a minor metabolite. In the acidic fraction the amount of epi-DPA ranged from 18-42% of the DPA content, in the conjugated form from 50-200%. The content of endogenous epi-DPA amounted to only 1-2% of that of the DPA. The applied abscisic acid is not metabolized in a manner identical with that of the endogenous material. DPA and epi-DPA were formed separately from PA and could not be inter-converted either by the extraction conditions employed or when fed to bean shoots during short term experiments.

引用

页码：493 / 500

页数：8

共 23 条

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