THE STEROL COMPOSITION OF POWDERY MILDEWS

被引：22
|
作者：
LOEFFLER, RST
BUTTERS, JA
HOLLOMON, DW
机构：
[1] Department of Agricultural Sciences, University of Bristol, AFRC Institute of Arable Crops Research, Bristol, BS18 9AF, Long Ashton
来源：
PHYTOCHEMISTRY | 1992年 / 31卷 / 05期
关键词：
ERYSIPHE-GRAMINIS; SPHAEROTHECA-FULIGINEA; PODOSPHAERA-LEUCOTRICHA; ERYSIPHACEAE; POWDERY MILDEW; STEROLS; ERGOSTA-5,24(241)-DIEN-3-BETA-OL;
D O I：
10.1016/0031-9422(92)83106-9
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 sterol composition of conidia of powdery mildews of apple (Podosphaera leucotricha), barley (Erysiphe graminis f.sp. hordei), and cucurbits (Sphaerotheca fuliginea) was very similar, and simple compared with that of other plant pathogenic fungi. Ergosta-5,24(24(1))-dien-3-beta-ol was the principal sterol in all three species, accompanied by much smaller amounts of 5-alpha-ergosta-7,24(24(1))-dien-3-beta-ol in apple and barley mildews, and cholesterol in the cucurbit mildew. All the ergostane derivatives found share the structural feature of a 24(24(1))-double bond, suggesting that in powdery mildews sterol side-chain biosynthesis does not proceed beyond the initial introduction of C-24(1).
引用
收藏
页码：1561 / 1563
页数：3
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