Data/hora: 09/06/2024 16:42:11

Provedor de dados: 	5	
País: 	France	
Título: 	Exposure to Conspecific and Heterospecific Sex-Pheromones Modulates Gustatory Habituation in the Moth Agrotis ipsilon	
Autores: 	Hostachy, Camille; Couzi, Philippe; Portemer, Guillaume; Hanafi-portier, Melissa; Murmu, Meena; Deisig, Nina; Dacher, Matthieu.	
Data: 	2019-12	
Ano: 	2019	
Palavras-chave: 	Insect; Moth; Gustatory perception; Sugar responsiveness; Non-associative learning; Habituation; Proboscis extension response; Pheromone.	
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.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00599/71120/69422.pdf

DOI:10.3389/fphys.2019.01518

https://archimer.ifremer.fr/doc/00599/71120/	
Editor: 	Frontiers Media SA	
Formato: 	application/pdf	
Fonte: 	Frontiers In Physiology (1664-042X) (Frontiers Media SA), 2019-12 , Vol. 10 , N. 1518 , P. 8p.	
Fonte: 	info:eu-repo/semantics/openAccess

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