Jasmonic acid induced resistance in grapevines to a root and leaf feeder

被引：61

作者：

Omer, AD ^{[1
]}

Thaler, JS ^{[1
]}

Granett, J ^{[1
]}

Karban, R ^{[1
]}

机构：

[1] Univ Calif Davis, Dept Entomol, Davis, CA 95616 USA

来源：

JOURNAL OF ECONOMIC ENTOMOLOGY | 2000年 / 93卷 / 03期

关键词：

Pacific spider mite; induced resistance; jasmonic acid; grapevines; grape phylloxera;

D O I：

10.1603/0022-0493-93.3.840

中图分类号：

Q96 [昆虫学];

学科分类号：

摘要：

We investigated the effects of induced resistance to the folivore Pacific spider mite, Tetranychus pacificus McGregor (Acari: Tetranychidae), as well as the root-feeding grape phylloxera Daktulosphaira vitifoliae (Fitch) (Homoptera: Phylloxeridae) in grapevines using exogenous applications of the natural plant inducer, jasmonic acid. Foliar jasmonic acid application at concentrations that caused no phytotoxicity significantly reduced the performance of both herbivores. There were less than half as many eggs produced by spider mites feeding on the induced leaves compared with control grapevine leaves. Induction reduced the numbers of phylloxera eggs and nymphal instars by approximately threefold and twofold, respectively, on induced compared with control grapevine roots. The negative demographic effects of jasmonic acid application appeared to be caused by changes in fecundity for the Pacific spider mite, and possibly changes in development rate and fecundity for grape phylloxera.

引用

页码：840 / 845

页数：6

共 39 条

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