COTTON BOLL-WEEVIL ANTIFEEDANT ACTIVITY AND ANTIFUNGAL ACTIVITY (RHIZOCTONIA-SOLANI AND PYTHIUM-ULTIMUM) OF EXTRACTS OF THE STEMS OF WEDELIA-BIFLORA

被引：22

作者：

MILES, DH

CHITTAWONG, V

PAYNE, AM

HEDIN, PA

KOKPOL, U

机构：

[1] MISSISSIPPI STATE UNIV,USDA ARS,CROP SCI LAB,MISSISSIPPI STATE,MS 39762

[2] CHULALONGKORN UNIV,DEPT CHEM,NATL PROD UNIT CELL,BANGKOK 5,THAILAND

来源：

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY | 1990年 / 38卷 / 07期

关键词：

D O I：

10.1021/jf00097a034

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Extracts of the stems of the Thai plant Wedelia biflora (Linn.) DC (Compositae) were shown to have antifeedant activity against the cotton boll weevil (Anthonomus grandis Boh.). This activity also prompted an investigation of antifungal properties. Five compounds with antifeedant and/or antifungal activity were isolated. They include 16-methylkaur-15-en-19-oic acid, 24-ethylcoprostanone, stigma-7-en-3-ol, stigmasterol, grandifloric acid, and ent-kauradienoic acid. 16-Methylkaur-15-en-19-oic acid and grandifloric acid showed antifungal activity against the fungi Pythium ultimum (240% and 70%) and Rhizoctonia solani (280% and 78%). 24-Ethylcoprostanone and enf-kauradienoic acid showed antifeedant activity against the cotton boll weevil (90% and 83%). © 1990, American Chemical Society. All rights reserved.

引用

页码：1591 / 1594

页数：4

共 16 条

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