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Naka, H. et al.

Sex pheromone of the persimmon fruit moth, Stathmopoda masinissa: identification and laboratory bioassay of (4E, 6Z)-4,6-hexadecadien-1-ol derivatives.

Three electroantennogram (EAG)-active components were detected by gas chromatography coupled to an electroantennographic detector (GC-EAD) analysis of a hexane extract of the pheromone glands of the persimmon fruit moth, Stathmopoda masinissa. These compounds were identified as (4E,6Z)-4,6-hexadecadienal (E4,Z6-16:Ald) and the corresponding acetate (E4,Z6-16:OAc) and alcohol (E4,Z6-16:OH) by mass spectral, GC retention time (RT), and microchemical test data. The characteristic base peak of the aldehyde at m/z 84 provided a crucial piece of information suggesting the possibility of a 4,6-diene structure. The (4E,6Z)-isomer elicited the strongest EAG responses among the four geometrical isomers of each synthetic 4,6-hexadecadienyl compound. In a laboratory bioassay, only E4,Z6-16:OAc elicited male moth behavioral activity significantly different from the control; the activity of the acetate was not affected by addition of the aldehyde and alcohol. A preliminary field trial confirmed that E4,Z6-16:OAc as a single component attracted male moths. The possible roles of E4,Z6-16:Ald and E4,Z6-16:OH as components of lures for field use remain to be determined.[1]

References

Sex pheromone of the persimmon fruit moth, Stathmopoda masinissa: identification and laboratory bioassay of (4E, 6Z)-4,6-hexadecadien-1-ol derivatives. Naka, H., Vang, l.e. .V., Inomata, S., Ando, T., Kimura, T., Honda, H., Tsuchida, K., Sakurai, H. J. Chem. Ecol. (2003) [Pubmed]

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