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Insect antifeedant activity associated with compounds isolated from species ofLonchocarpus andTephrosia |
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| Authors: | M S J Simmonds W M Blaney F Delle Monache G B Marini Bettolo |
| Affiliation: | (1) Behavioral Entomology Group Jodrell Laboratory, Royal Botanic Gardens Kew, TW9 3DS Richmond, Surrey, England;(2) Behavioral Entomology Group Department of Biology, Birkbeck College (University of London), Malet Street, WC1E 7HX London, England;(3) Centro Chimica dei Recettori and Istituto di Chimica, Universita Cattolica del Sacro Cuore, Largo Francesco Vito I, 00168 Rome, Italy |
| Abstract: | The antifeedant activity of a series of 21 chalcones, flavanes, and flavanones isolated from the generaLonchocarpus andTephrosia (Leguminosae) was assessed by behavioral and electrophysiological bioassays against larvae ofSpodoptera littoralis andS. exempta. The antifeedant activity is related to the molecular structure of the compounds, and possible modes of interaction with the insect taste receptors are discussed. |
| Keywords: | Spodoptera littoralis Spodoptera exempta Lepidoptera Noctuidae Lonchocarpus Tephrosia antifeedant feeding behavior gustatory codes |
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