Methyl ester of p-coumaric acid: A phytoalexin-like compound from long English cucumber leaves

被引：85

作者：

Daayf, F ^{[1
]}

BelRhlid, R ^{[1
]}

Belanger, RR ^{[1
]}

机构：

[1] UNIV LAVAL,CTR RECH HORT,DEPT PHYTOL,ST FOY,PQ G1K 7P4,CANADA

来源：

JOURNAL OF CHEMICAL ECOLOGY | 1997年 / 23卷 / 06期

关键词：

Cucumis sativus; phenolic; phytoalexin; milsana; induced resistance; p-coumaric acid methyl ester;

D O I：

10.1023/B:JOEC.0000006419.22408.65

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：

Methanolic extracts from long English cucumber leaves were fractionated and tested for their fungitoxicity by direct bioassay against Cladosporium cucumerinum on TLC plates. After separation by several preparative TLCs and flash chromatography and purification through reverse-phase HPLC, a crystalline compound possessing antifungal properties was isolated and identified as p-coumaric acid methyl ester. This antifungal compound was found to increase following infection and treatment with Milsana(R), which could explain in part the prophylactic properties of the natural inducer. As such, p-coumaric acid methyl ester is the first identified compound to be associated with phytoalexin-like behavior in cucumber.

引用

页码：1517 / 1526

页数：10

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