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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Effect ofjuvenile hormone on the central nervous processing of sex pheromone in an insect
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Effect ofjuvenile hormone on the central nervous processing of sex pheromone in an insect

机译：幼激素对昆虫性信息素中枢神经加工的影响

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摘要

Behavioral sex pheromone responsiveness in the male moth Agrotis ipsilon was previously shown to be controlled by juvenile hormone (JH). However, this morphogenetic hormone did not change the sensitivity of antennae to sex pheromones. To analyze the possible involvement of JH in the central integration of the female-produced sex pheromone, we investigated the pheromone response of olfactory antennal lobe (AL) interneurons in male A. ipsilon as a function of age and JH status by using intracellular recordings. When the antennae were stimulated with the sex pheromone blend, the sensitivity of olfactory AL neurons increased with ageg as does the JH-dependent behavioral and physiological development of A. Ipsilon males. Furthermore, males surgically deprived of JH showed a significant decrease in the sensitivity of the AL neurons. JH injection in operated or in young males restored or induced, respectively, a high sensitivity of the AL neurons. JH seems likely to be involved in the plasticity of the adult insect brain by modulating the central nervous processing of olfactory information, thus allowing mate recognition and reproduction at the optimal time.
机译：先前已证明雄蛾Agrotis ipsilon中的行为性信息素反应受幼年激素（JH）控制。但是，这种形态发生激素并未改变触角对性信息素的敏感性。为了分析JH可能参与女性产生的性信息素的中央整合，我们通过使用细胞内记录研究了雄性i。ipsilon中嗅触叶（AL）中间神经元的信息素响应与年龄和JH状态的关系。当用性信息素混合物刺激触角时，嗅觉AL神经元的敏感性随年龄的增长而增加，A。Ipsilon雄性的JH依赖行为和生理发育也随之增加。此外，被手术剥夺JH的男性表现出AL神经元敏感性的显着下降。手术或年轻男性的JH注射分别恢复或诱导了AL神经元的高敏感性。 JH可能通过调节嗅觉信息的中枢神经处理，从而参与了成虫昆虫大脑的可塑性，从而允许在最佳时间识别并繁殖伴侣。

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