STEROL AND ECDYSTEROID PROFILES OF SERRATULA-TINCTORIA (L) - PLANT AND CELL-CULTURES PRODUCING STEROIDS

被引:24
作者
CORIOCOSTET, MF
CHAPUIS, L
MOUILLET, JF
DELBECQUE, JP
机构
[1] SPIRAL RD,F-21800 COUTERNON,FRANCE
[2] UNIV BOURGOGNE,CNRS,URA 674,F-21000 DIJON,FRANCE
关键词
CELL CULTURES; CHOLESTEROL; AMYRINS; STEROLS; ECDYSTEROIDS; 20-HYDROXYECDYSONE; SERRATULA-TINCTORIA (L); PERENNIAL PLANT;
D O I
10.1016/0965-1748(93)90098-D
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
Cell suspension cultures have been obtained from Serratula tinctoria, a plant producing ecdysteroids. Sterol profiles and ecdysteroid contents have been analysed and compared in plants and cell cultures. In particular, the composition of free and esterified sterols was investigated using appropriate analytical techniques. In plants, esterified sterols were more abundant (50-70% of the total sterol) than in cell cultures (13-36%). A selectivity for sterol esterification was noted: in plants, the triterpenes (as amyrins) were esterified, whereas it was the 4-desmethylsterols (sitosterol and cholesterol) in cell cultures. Ecdysteroids were present in higher quantities in plant (0.1-1.2% dry wt) than in cell cultures (0.01-0.03%). Analysis confirmed the presence of 20-hydroxyecdysone, 20-hydroxyecdysone-3-acetate and polypodine B as the main compounds. Roots were not only the richest organ in ecdysteroids, but also in cholesterol, lathosterol and 24-methylene-cholesterol. The results obtained suggest interesting relationships between free or esterified sterols and ecdysteroid contents.
引用
收藏
页码:175 / 180
页数:6
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