Hydroxybenzoic Acid Derivatives in a Nonhost Rutaceous Plant, Orixa japonica, Deter Both Oviposition and Larval Feeding in a Rutaceae-Feeding Swallowtail Butterfly, Papilio xuthus L. |
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Authors: | Hajime Ono Yasumasa Kuwahara Ritsuo Nishida |
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Affiliation: | Laboratory of Chemical Ecology, Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan. |
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Abstract: | A Rutaceae-feeding swallowtail butterfly. Papilio xuthus L., feeds on various rutaceous plants but always rejects Orixa japonica Thunb. (Rutaceae). Females were strongly deterred from laying eggs by a methanolic extract of O. japonica leaves. Larvae also rejected a diet leaf medium impregnated with O. japonica leaf extracts. Several components in the water-soluble fraction of the leaf extract were found to deter both oviposition and feeding responses. Two major deterrent compounds were characterized as 5-2-O-(beta-D-apiofuranosyl)-beta-D-glucopyranosyl]oxy]-2-hydroxybenzoic acid and adisyringoyl aldaric acid. These compounds induced potent deterrence of both oviposition and larval feeding by P. xuthus, which suggests a congruent chemosensory mechanism of allomonal chemicals acting on both female tarsal chemoreceptors and larval maxillary taste receptors. |
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Keywords: | Papilio
xuthus Orixa
japonica Rutaceae oviposition deterrent feeding deterrent 5-{[2-O-(-D-apiofuranosyl)-gif" alt="beta" align="MIDDLE" BORDER="0">-D-apiofuranosyl)--D-glucopyranosyl]oxy}-2- hydroxybenzoic acid" target="_blank">gif" alt="beta" align="MIDDLE" BORDER="0">-D-glucopyranosyl]oxy}-2- hydroxybenzoic acid aldaric acid disyringoyl ester host selection |
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