Chemical communication in termites: syn-4,6-Dimethylundecan-1-ol as 3 trail-following pheromone, syn-4,6-dimethylundecanal and 4 (5E)-2,6,10-trimethylundeca-5,9-dienal as the respective male and female sex 5 pheromones in Hodotermopsis sjoestedti (Isoptera, Archotermopsidae)

Abstract : The trail-following pheromone and sex pheromones were investigated in the Indomalayan termite Hodotermopsis sjoestedti belonging to the new family Archotermopsidae. Gas chromatography coupled to mass spectrometry (GC-MS) after solid phase microextraction (SPME) of the sternal gland secretion of pseudergates and trail-following bioassays demonstrated that the trailfollowing pheromone of H. sjoestedti was syn-4,6-dimethylundecan-1-ol, a new chemical structure for termite pheromones. GC-MS after SPME of the sternal gland secretion of alates also allowed the identification of sex-specific compounds. In female alates, the major sex-specific compound was identified as (5E)-2,6,10-trimethylundeca-5,9-dienal, a compound previously identified as the female sex pheromone of the termite Zootermopsis nevadensis. In male alates, the major sex-specific compound was identified as syn-4,6-dimethylundecanal, a homolog of syn-4,6-dimethyldodecanal, which has previously been confirmed as the male sex pheromone of Z. nevadensis. The presence of sex-specific compounds in alates of H. sjoestedti strongly suggests for this termite the presence of sex-specific pairing pheromones which were only known until now in Z. nevadensis. Our results showed therefore a close chemical relationship between the pheromones of the taxa Hodotermopsis and Zootermopsis and, in contrast, a clear difference with the taxa Stolotermes and Porotermes, which is in total agreement with the recent creation of the families Archotermopsidae and Stolotermitidae as a substitute for the former family Termopsidae.
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Article dans une revue
Journal of Insect Physiology, Elsevier, 2011, 57, pp.1585-1591
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Contributeur : Alain Robert <>
Soumis le : jeudi 26 janvier 2012 - 10:16:45
Dernière modification le : vendredi 8 juin 2018 - 14:50:15

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M. J. Lacey, Etienne Semon, Jana Krasulova, David Sillam-Dussès, Alain Robert, et al.. Chemical communication in termites: syn-4,6-Dimethylundecan-1-ol as 3 trail-following pheromone, syn-4,6-dimethylundecanal and 4 (5E)-2,6,10-trimethylundeca-5,9-dienal as the respective male and female sex 5 pheromones in Hodotermopsis sjoestedti (Isoptera, Archotermopsidae). Journal of Insect Physiology, Elsevier, 2011, 57, pp.1585-1591. 〈bioemco-00663115〉

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