Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/2565
Title: Identification of Conjugated Pentadecadienals as Sex Pheromone Components of the Sphingid Moth, Dolbina tancrei
Authors: Uehara, Takuya
Naka, Hideshi
Matsuyama, Shigeru
Lê, Văn Vàng
Ando, Tetsu
Honda, Hiroshi
Keywords: Hawkmoths
Sphingidae
Lepidoptera
(9E,11Z)-9,11-pentadecadienal
(9Z,11Z)-9,11-pentadecadienal
Issue Date: 2013
Series/Report no.: Journal of Chemical Ecology;39 .- p.1441-1447
Abstract: Abstract Homologs of b ombykal, (10E ,12Z )-10,12-hexadecadienal, have been reported to be sex pheromones or sexual attractants of several species of sphingid moths. In this study, we identified novel bombykal analogs as sex pheromone components from a Japanese sphingid moth, Dolbina tancrei. Staudinger (Sphingidae: Lepidoptera). Sex pheromone gland extracts from calling female moths were subjected to gas chromatography/electroantennograhic detection (GC/EAD), gas chromatography/mass spectrometry (GC/MS), and gas chromatography (GC) analyses. GC/EAD analyses showed two active components in the crude pheromone extracts. GC/MS analysis determined these two components to be pentadecadienals. GC/MS of their MTAD derivatives showed conjugated double bonds at the 9- and 11-positions, indicating 9,11-pentadecadienals. The isomeric configurations of these candidates were determined by comparison of their Kováts retention indices with those of synthetic compounds. Field bioassays with the four isomers of 9,11-pentadecadienal and their mixtures confirmed that the two sex pheromone components of D. tancrei are (9E,11Z)-9,11-pentadecadienal and (9Z, 11Z)-9,11-pentadecadienal, with the highest male catches observed for a 90:10 blend. This is the first report of 9,11-pentadecadienals as sex pheromone components in lepidopteran species.
URI: http://172.18.63.105/jspui/handle/123456789/2565
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