No inhibitory effect on receptor neurone activity by sulphur analogues of the 
sex pheromone component (Z)-5-decenyl acetate in the turnip moth, Agrotis 
segetum (Lepidoptera: Noctuidae)

Hansson, Bill; Ochieng, S. A.; Wellmar, U.; Jönsson, S.; Liljefors, T.

doi:10.1111/j.1365-3032.1996.tb00865.x

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No inhibitory effect on receptor neurone activity by sulphur analogues of the sex pheromone component (Z)-5-decenyl acetate in the turnip moth, Agrotis segetum (Lepidoptera: Noctuidae)

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Citation

Hansson, B., Ochieng, S. A., Wellmar, U., Jönsson, S., & Liljefors, T. (1996). No inhibitory effect on receptor neurone activity by sulphur analogues of the sex pheromone component (Z)-5-decenyl acetate in the turnip moth, Agrotis segetum (Lepidoptera: Noctuidae). Physiological Entomology, 21(4), 275-282. doi:10.1111/j.1365-3032.1996.tb00865.x.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0014-6765-B

Abstract

Olfactory responses from the entire antenna and from single antennal sensilla of the male turnip moth, Agrotis segetum (Lepidoptea: Noctuidae Schiff.), were recorded after stimulation of the antenna with the sex pheromone component, (Z)-5-decenyl acetate (Z5-10:OAc), and three sulphur analogues of this compound. Adaptation of olfactory receptor neurones tuned to Z5-10:OAc was investigated after pre-exposure of these receptor neurones to the key stimulus and to the three sulphur analogues. Both electro-antennographic and single sensillum recordings revealed that the sulphur analogues had a significantly decreased effect compared to the natural stimulus. The pre-exposure experiments demonstrated that no further inhibition of neural activity was observed than could be expected from receptor neurone adaptation. Earlier reports, describing sulphur analogues as possible hyperagonists acting on moth pheromone receptor neurones, are not supported by the present study.