| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Exposure to Conspecific and Heterospecific Sex-Pheromones Modulates Gustatory Habituation in the Moth Agrotis ipsilon
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| Autores: |
Hostachy, Camille
Couzi, Philippe
Portemer, Guillaume
Hanafi-portier, Melissa
Murmu, Meena
Deisig, Nina
Dacher, Matthieu
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| Data: |
2019-12
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| Ano: |
2019
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| Palavras-chave: |
Insect
Moth
Gustatory perception
Sugar responsiveness
Non-associative learning
Habituation
Proboscis extension response
Pheromone
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| Resumo: |
In several insects, sex-pheromones are essential for reproduction and reproductive isolation. Pheromones generally elicit stereotyped behaviors. In moths, these are attraction to conspecific sex-pheromone sources and deterrence for heterospecific sex-pheromone. Contrasting with these innate behaviors, some results in social insects point toward effects of non-sex-pheromones on perception and learning. We report the effects of sex-pheromone pre-exposure on gustatory perception and habituation (a non-associative learning) in male Agrotis ipsilon moths, a non-social insect. We also studied the effect of Z5-decenyl acetate (Z5), a compound of the sex-pheromone of the related species Agrotis segetum. We hypothesized that conspecific sex-pheromone and Z5 would have opposite effects. Pre-exposure to either the conspecific sex-pheromone or Z5 lasted 15 min and was done either immediately or 24 h before the experiments, using their solvent alone (hexane) as control. In a sucrose responsiveness assay, pre-exposure to the conspecific sex-pheromone had no effect on the dose-response curve at either delays. By contrast, Z5 slightly improved sucrose responsiveness 15 min but not 24 h after pre-exposure. Interestingly, the conspecific sex-pheromone and Z5 had time-dependent effects on gustatory habituation: pre-exposing the moths with Z5 hindered learning after immediate but not 24-h pre-exposure, whereas pre-exposure to the conspecific sex-pheromone hindered learning at 24-h but not immediate pre-exposure. They did not have opposite effects. This is the first time a sex-pheromone is reported to affect learning in a non-social insect. The difference in modulation between conspecific sex-pheromone and Z5 suggests that con- and hetero-specific sex-pheromones act on plasticity through different cerebral pathways.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00599/71120/69422.pdf
DOI:10.3389/fphys.2019.01518
https://archimer.ifremer.fr/doc/00599/71120/
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| Editor: |
Frontiers Media SA
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| Formato: |
application/pdf
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| Fonte: |
Frontiers In Physiology (1664-042X) (Frontiers Media SA), 2019-12 , Vol. 10 , N. 1518 , P. 8p.
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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