title: Insect antifeedant activity associated with compounds isolated from species ofLonchocarpus andTephrosia.
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.
authors.affiliation: Behavioral Entomology Group Jodrell Laboratory, Royal Botanic Gardens Kew, TW9 3DS, Richmond, Surrey, England.
authors.forename: M S
authors.initials: MS
authors.lastname: Simmonds
authors.forename: W M
authors.initials: WM
authors.lastname: Blaney
authors.forename: F
authors.initials: F
authors.lastname: Delle Monache
authors.forename: G B
authors.initials: GB
authors.lastname: Marini Bettolo