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Methyl Salicylate and (-)-(1R,5S)-myrtenal Are Plant-Derived Repellents for Black Bean aphid,Aphis Fabae Scop. (Homoptera: Aphididae)

Methyl Salicylate and (-)-(1R,5S)-myrtenal Are Plant-Derived Repellents for Black Bean aphid,Aphis Fabae Scop. (Homoptera: Aphididae)

J Hardie, R Isaacs, J A Pickett, L J Wadhams, C M Woodcock

J Chem Ecol. 1994 Nov;20(11):2847-55.

PMID: 24241919

Abstract:

Methyl salicylate and (-)-(1R,5S)-myrtenal stimulate specific olfactory cells in the primary rhinaria on the sixth and fifth antennal segments, respectively, of the black bean aphid.Aphis fabae. In behavioral studies employing a linear track olfactometer, both compounds were repellent toA. fabae and also inhibited attraction to volatiles from its host, broad bean (Vicia faba). Methyl salicylate is associated with secondary metabolite-based defense in plants, and the monoterpenoid (-)-(1R,5S)-myrtenal is metabolically related to (-)-(1S,5S)-α-pinene, an abundant component of defensive resins produced by gymnosperms. It is argued that these two compounds are employed byA. fabae as indicators of nutritionally unsuitable or nonhost plants.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP18486696	(1R)-(−)-Myrtenal		18486-69-6	Price

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