Triterpene phytoalexins from nectarine fruits

被引：36

作者：

El Lahlou, H

Hirai, N

Tsuda, M

Ohigashi, H

机构：

[1] Kyoto Univ, Grad Sch Agr, Div Appl Life Sci, Kyoto 6068502, Japan

[2] Kyoto Univ, Grad Sch Agr, Div Environm Sci & Technol, Kyoto 6068502, Japan

来源：

PHYTOCHEMISTRY | 1999年 / 52卷 / 04期

关键词：

Prunus persica; nectarine; Colletotrichum musae; phytoalexin; triterpenoid; antimicrobial activity;

D O I：

10.1016/S0031-9422(99)00316-7

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 [生物化学与分子生物学]; 081704 [应用化学];

摘要：

Seven triterpenoid phytoalexins were isolated from peel of unripe fruits of nectarine (Prunus persica cv Fantasia) wounded and inoculated with Colletotrichum musae. Two were new triterpenoids, identified as 1 beta,2 alpha,3 alpha,24-tetrahydroxyurs-12-en-28-oic acid and 1 beta,2 alpha,3 alpha,24-tetrahydroxyolean-12-en-28-oic acid. 2 alpha,3 alpha,24-Trihydroxyolean-12-en-28-oic acid, 2 alpha,3 alpha,24-trihydroxyurs-12-en-28-oic acid, 2 alpha,3 beta,24-trihydroxyolean-12-en-28-oic acid, 2 alpha,3 alpha-dihydroxyolean-12-en-28-oic acid, and 2 alpha,3 alpha-dihydroxyurs-12-en-28-oic acid were previously reported as constitutive natural products from other plants, but were never described as phytoalexins. All showed antifungal activity against the fungus mentioned. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：623 / 629

页数：7

共 18 条

[1]

AHMAD VU, 1986, PHYTOCHEMISTRY, V25, P1487

[2]

MASS SPECTROMETRY IN STRUCTURAL AND STEREOCHEMICAL PROBLEMS .32. PENTACYCLIC TRITERPENES [J].