2,3-Epoxybrassinosteroids are intermediates in the biosynthesis of castasterone in seedlings of Secale cereale

被引：18

作者：

Antonchick, A

Svatos, A

Schneider, B

Konstantinova, OV

Zhabinskii, VN

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 | 2005年 / 66卷 / 01期

关键词：

Secale cereale; gramineae; biosynthesis; brassinosteroids; castasterone; deuterium labelling; epoxides; epoxysteroids; secasterone; steroids;

D O I：

10.1016/j.phytochem.2004.11.008

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：

The involvement of the 2,3-epoxybrassinosteroids secasterone and 2,3-diepisecasterone in the biosynthesis of castasterone has been demonstrated in seedlings of Secale cereale by LC-ESI-MS. Deuterated secasterone, upon administration to rye seedlings, was incorporated into castasterone and its 2beta- and 3beta-epimers. Administration of deuterated 2,3-diepisecasterone resulted in castasterone and 2-epicastasterone. A biosynthetic subpathway from typhasterol/teasterone via 2,3-epoxybrassinosteroid intermediates to castasterone is discussed. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：65 / 72

页数：8

共 31 条

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