Biosynthesis of 2,3-epoxybrassinosteroids in seedlings of Secale cereale

被引：19

作者：

Antonchick, AP

Schneider, B

Zhabinskii, VN

Konstantinova, OV

Khripach, VA

机构：

[1] Max Planck Inst Chem Ecol, D-07745 Jena, Germany

[2] Natl Acad Sci Belarus, Inst Bioorgan Chem, Minsk 220141, BELARUS

来源：

PHYTOCHEMISTRY | 2003年 / 63卷 / 07期

关键词：

Secale cereale; Gramineae; biosynthesis; brassinosteroids; deuterium labeling; epoxides; secasterol; secasterone;

D O I：

10.1016/S0031-9422(03)00354-6

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：

Two new brassinosteroids, (22R,23R,24S)-22,23-dihydroxy-24-methyl-5alpha-cholest-2-en-6-one (secasterol) and (22R,23R,24S)-22,23-dihydroxy-2alpha,3alpha-epoxy-24-methyl-5alpha-cholest-6-one (2,3-diepisecasterone) have been identified together with a known 2,3-epoxybrassinosteroid, secasterone, in seedlings of Secale cereale. Deuterated secasterol, teasterone, and typhasterol, upon administration to rye seedlings, were incorporated into secasterone and 2,3-diepisecasterone, indicating a biosynthetic route via teasterone/typhasterol to secasterol to 2,3-epoxybrassinosteroids. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：771 / 776

页数：6

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