New genetic opportunities from legume intercrops for controlling Striga spp. parasitic weeds

被引：44

作者：

Hooper, Antony M. ^{[1
]}

Hassanali, Ahmed ^{[2
]}

Chamberlain, Keith ^{[1
]}

Khan, Zeyaur ^{[2
]}

Pickett, John A. ^{[1
]}

机构：

[1] Rothamsted Res, Dept Biol Chem, Ctr Sustainable Pest & Dis Management, Harpenden AL5 2JQ, Herts, England

[2] Int Ctr Insect Physiol & Ecol, Nairobi, Kenya

来源：

PEST MANAGEMENT SCIENCE | 2009年 / 65卷 / 05期

基金：

英国生物技术与生命科学研究理事会;

关键词：

Desmodium uncinatum; Striga hermonthica; C-glycosylflavone; C-glycosyltransferase; Zea mays; allelopathy; weed control; isoschaftoside; PUSH-PULL TECHNOLOGY; C-GLYCOSYLFLAVONES; DESMODIUM SPP; ISOFLAVONOIDS; BIOSYNTHESIS; HERMONTHICA; STEMBORERS; CLONING; MAIZE;

D O I：

10.1002/ps.1731

中图分类号：

S3 [农学（农艺学）];

学科分类号：

090104 [作物信息科学与技术];

摘要：

In smallholder farming in East Africa, intercropping of maize with the cattle forage legume, Desmodium uncinatum Jacq., prevents parasitism by Striga hermonthica (Del.) Benth. (witchweed) through an allelopathic mechanism. Isoschaftoside, a di-C-glycosylflavone, isolated from the root extract and root exudate of Desmodium, interferes with in vitro radicle development of germinated Striga. The biosynthetic pathway of this class of compound is already mostly present in edible legumes and in cereals, so characterisation of the enzyme and genes that control C-glycosylflavone biosynthesis has the potential to create this protection mechanism in other agriculturally important plants. (C) 2009 Society of Chemical Industry

引用

页码：546 / 552

页数：7

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