Modulation of the sex pheromone detection by nutritional and hormonal signals in a male insect DOI Creative Commons
Evan Force,

Caroline Suray,

Christelle Monsempès

et al.

Journal of Experimental Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

As in other animals, insects can modulate their odor-guided behaviors, especially sexual behavior, according to environmental and physiological factors such as the individual's nutritional state. This behavioral flexibility results from modifications of olfactory pathways under control hormones. Most studies have focused on central modulation system less attention has been paid peripheral system. To understand how inputs influence detection sex pheromones insects, we turned male moth Agrotis ipsilon for which responsiveness is dependent diet reproductive hormones, juvenile hormone (JH) 20-hydroxyecdysone (20E). We demonstrated that a sugar-rich with sodium increases sensitivity receptor neurons (Z)-7-dodecen-1-yl acetate, major pheromone compound, antennal expression binding protein (PBP2) (OR3). Such also induces overexpression Methoprene-tolerant JH underexpression ecdysone 20E antennae. The diet-induced responses were maintained by treatment Cucurbitacin B, antagonist, but suppressed topic application Precocene, biosynthesis inhibitor. These findings reveal positive state enhances through actions actors moths. More broadly our study provides, first time, neuronal molecular basis dietary-dependent endocrine

Language: Английский

Modulation of the sex pheromone detection by nutritional and hormonal signals in a male insect DOI Creative Commons
Evan Force,

Caroline Suray,

Christelle Monsempès

et al.

Journal of Experimental Biology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

As in other animals, insects can modulate their odor-guided behaviors, especially sexual behavior, according to environmental and physiological factors such as the individual's nutritional state. This behavioral flexibility results from modifications of olfactory pathways under control hormones. Most studies have focused on central modulation system less attention has been paid peripheral system. To understand how inputs influence detection sex pheromones insects, we turned male moth Agrotis ipsilon for which responsiveness is dependent diet reproductive hormones, juvenile hormone (JH) 20-hydroxyecdysone (20E). We demonstrated that a sugar-rich with sodium increases sensitivity receptor neurons (Z)-7-dodecen-1-yl acetate, major pheromone compound, antennal expression binding protein (PBP2) (OR3). Such also induces overexpression Methoprene-tolerant JH underexpression ecdysone 20E antennae. The diet-induced responses were maintained by treatment Cucurbitacin B, antagonist, but suppressed topic application Precocene, biosynthesis inhibitor. These findings reveal positive state enhances through actions actors moths. More broadly our study provides, first time, neuronal molecular basis dietary-dependent endocrine

Language: Английский

Citations

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