OCCURRENCE AND LEVELS OF ECDYSTEROIDS IN SPINACH

被引：45

作者：

GREBENOK, RJ

RIPA, PV

ADLER, JH

机构：

[1] MICHIGAN TECHNOL UNIV, DEPT BIOL SCI, HOUGHTON, MI 49931 USA

[2] MICHIGAN TECHNOL UNIV, DEPT CHEM, HOUGHTON, MI 49931 USA

来源：

LIPIDS | 1991年 / 26卷 / 08期

关键词：

D O I：

10.1007/BF02536433

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 dominant ecdysteroid in spinach, Spinacia oleracea L., is 20-hydroxyecdysone (2-beta,3-beta,14-alpha,20R,22R,25-hexahydroxy-5-beta-cholest-7-en-6-one) with the presence of a smaller amount of polypodine B (2-beta,3-beta,5-beta,14-alpha,20R,22R,25-hepta-hydroxycholest-7-en-6-one). Ecdysteroids are present in the seed embryo at 14-mu-g ecdysteroid/seed, and ecdysteroid levels increase in the plant during growth and development. During the onset of ecdysteroid production, the ratio of ecdysteroid to total sterol shifts from a value of one to about ten over the course of a week. Spinach may serve as a model to study ecdysteroid biosynthesis in plants.

引用

页码：666 / 668

页数：3

共 20 条

[1] CO-OCCURRENCE OF C-24 ALKYLATED DELTA-7-STEROLS AND DELTA-5-STEROLS IN THE LEAVES OF BETA-VULGARIS [J].