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Antifeedant activity of two phenylpropanoid glucosides from Aegiphila obducta against Chilo partellus larvae

Published online by Cambridge University Press:  19 September 2011

Suzana Guimarães Leitão
Affiliation:
Departamento de Farmacognosia, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Ilha da Cidade Universitária, 21941-590, Rio de Janeiro, Brazil
Maria Auxiliadora C. Kaplan
Affiliation:
Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, CCS Bl. H, Ilha da Cidade Universitária, 21941-590, Rio de Janeiro, Brazil
Franco Delle Monache
Affiliation:
Centro Chimica dei Recettori del C.N.R., Università Cattolica, S. Cuore, Largo Francesco Vito 1, 00168, Rome, Italy
Edward Nyandat
Affiliation:
The International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi, Kenya
Emil F. Rwekika
Affiliation:
The International Centre of Insect Physiology and Ecology, P.O. Box 30772, Nairobi, Kenya
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Abstract

Two phenylpropanoid glucosides, namely acetylmartynoside A and 4”-O-acetylmartynoside, isolated from Aegiphila obducta (Verbenaceae) were studied for insect antifeedant activity against fourth-instar larvae of Chilo partellus (Lepidoptera: Pyralidae). Acetylmartynoside A showed weak antifeedant activity at all the concentrations tested while 4”-O-acetylmartynoside showed strong antifeedant activity, particularly at the higher concentrations of 400 and 500 μg/disk.

Résumé

Deux glucosides phenylpropanoidiques-acetylmartynoside A et 4”-O-acetyhnartynoside-isolés d'Aegiphila obducta (Verbenaceae) ont été étudiés pour leur activité phagodeterrente sur les larves du quatrième stade de Chilo partellus (Lepidoptera: Pyralidae). Acetylmartynoside A a montré un faible activité phagodéterrente à toutes les concentrations testées tandis que 4”-O-acetylmartynoside a montré une forte activité phagodeterrente, particulièrement aux plus hautes concéntrations de 400 et 500 μg/disque.

Type
Research Articles
Copyright
Copyright © ICIPE 1995

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