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Reinvestigation of female sex pheromone of processionary moth (thaumetopoea pityocampa): no evidence for minor components

Tipo de material: Artículo impreso(a) Artículo impreso(a) Idioma: Inglés Tema(s) en español: Clasificación:
  • AR/595.78 R4
 En: Journal of Chemical Ecology volumen 23, número 3 (1997), páginas 713-726Resumen:
Inglés

The female sex pheromone of the processionary moth Thaumetopoea pityocampa has been reinvestigated to look for possible minor components. Examination by GC-MS and GC-EAD of the contents of virgin female glands, after stimulation with PBAN (pheromone-biosynthesis-activating neuropeptide), showed that the major component, (Z)-13-hexadecen-l 1-ynyl acetate (1), appears to be the only pheromone compound present in the gland. Comparison of female attractivity with that of the natural extract and synthetic (Z)-13-hexadecen-l 1-ynyl acetate showed that this chemical is able to elicit a similar activity to that displayed by virgin females in a wind tunnel. In single cell recording experiments, two specialist receptor cell types were found in the trichoid sensilla. One cell type was tuned to enyne acetate 1. The other one was tuned to (Z,Z)-11,13- hexadecadienal and (Z)-13-hexadecen-l1-ynal, the major components of the pheromone blend of other Thaumetopoea spp., and constitutes a further example of interspecific inhibitor receptor cells. Our results show that the processionary moth may not need minor components tor successful mate recognition.

Número de sistema: 19645
Lista(s) en las que aparece este ítem: Bibliografía DEAMP
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Tipo de ítem Biblioteca actual Colección Signatura topográfica Info Vol Estado Código de barras
Artículos Biblioteca San Cristóbal Archivo vertical (AV) Acervo General AR 595.78 R4 001 Disponible SER001050
Artículos Biblioteca Tapachula Archivo vertical Hemeroteca (AV H) Acervo General 002 Disponible 450214C19716-20

The female sex pheromone of the processionary moth Thaumetopoea pityocampa has been reinvestigated to look for possible minor components. Examination by GC-MS and GC-EAD of the contents of virgin female glands, after stimulation with PBAN (pheromone-biosynthesis-activating neuropeptide), showed that the major component, (Z)-13-hexadecen-l 1-ynyl acetate (1), appears to be the only pheromone compound present in the gland. Comparison of female attractivity with that of the natural extract and synthetic (Z)-13-hexadecen-l 1-ynyl acetate showed that this chemical is able to elicit a similar activity to that displayed by virgin females in a wind tunnel. In single cell recording experiments, two specialist receptor cell types were found in the trichoid sensilla. One cell type was tuned to enyne acetate 1. The other one was tuned to (Z,Z)-11,13- hexadecadienal and (Z)-13-hexadecen-l1-ynal, the major components of the pheromone blend of other Thaumetopoea spp., and constitutes a further example of interspecific inhibitor receptor cells. Our results show that the processionary moth may not need minor components tor successful mate recognition. Inglés