Article

Journal of Chemical Ecology

, Volume 22, Issue 9, pp 1607-1619

First online:

Electroantennogram activity from antennae ofCeratitis capitata (Wied.) to fresh orange airborne volatiles

  • M. M. HernándezAffiliated withInstituto de Tecnología química, Dpto de Biotecnología, Universidad Politécnia
  • , I. SanzAffiliated withInstituto de Tecnología química, Dpto de Biotecnología, Universidad Politécnia
  • , M. AdelantadoAffiliated withInstituto de Tecnología química, Dpto de Biotecnología, Universidad Politécnia
  • , S. BallachAffiliated withDpto de Estadíslica e Investigación Operativa, Universidad Politécnica
  • , E. PrimoAffiliated withInstituto de Tecnología química, Dpto de Biotecnología, Universidad Politécnia

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Abstract

Twenty-six compounds have been identified from fresh orange airborne volatiles, the most abundant being limonene and alloaromadendrene. Ethyl- and butylhexanoates were found in middle concentrations, whereas the other compounds occur at low levels. Electroantennograms recorded fromCeratitis capitata Wied. (males and females) revealed limonene. butyl hexanoate, dihydrocarvone, and limonene oxide to be most active. In the case of dihydrocarvone, 4-ethyl acetophenone, and carvone, female antennae give greater responses than antennae of males. Limonene oxide was more active for males than females. Total airborne volatiles recovered from oranges elicited high EAGs, with females being more sensitive than males.

Key Words

Oranges fruit volatiles odor Ceratitis capitata Mediterranean fruit fly Diptera Tephritidae olfaction electroantennogram electrophysiology