Feeding responses ofChilo partellus (Swinhoe) (Lepidoptera: Pyralidae) larvae to sorghum plant phenolics and their analogs
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Date
1991-01
Authors
Hassanali, Ahmed
Torto, B.
Saxena, K. N.
Nokoe, S.
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
Phagostimulatory responses of third-instar larvae ofChilo Partellus to phenolic components identified in an ethyl acetate extract of the leaf whorls of 3-week-old plants ofSorghum bicolor cultivar IS 18363 were studied in no-choice bioassays. The major components in the extract were identified as 4-hydroxybenzaldehyde and 4-hydroxybenzoic acid, with 4-hydroxy-3-methoxycinnamic acid, 3,4-dihydroxycinnamic acid, and 4-hydroxycinnamic acid present in minor amounts. All but 4-hydroxycinnamic acid were stimulatory at the doses tested. 4-Hydroxybenzaldehyde was more stimulatory than other potential biogenetic analogs. Hydroxybenzoic acids generally elicited greater feeding response than cinnamic acids, and the pattern of oxygen substitution in the benzene ring was related to bioactivity.
Description
DOI10.1007/BF00994422
Keywords
Chilo partellus, Lepidoptera, Pyralidae, sorghum, feeding response, phenolics, phagostimulant, 4-hydroxybenzaldehyde, 4-hydroxybenzoic acid, 4-hydroxy-3-methoxycinnamic acid, 3,4-dihydroxycinnamic acid, 4-hydroxycinnamic acid
Citation
ournal of Chemical Ecology January 1991, Volume 17, Issue 1, pp 67-78