Olfactory-based discrimination learning in the moth, Manduca sexta
Olfactory-based discrimination learning in the moth, Manduca sexta
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DOI：
10.1016/s0022-1910(00)00117-7
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发表时间：
2001-04-01
影响因子：
2.2
通讯作者：
Smith, BH
中科院分区：
文献类型：
--
作者：
Daly, KC;Durtschi, ML;Smith, BH
飞蛾具有高度可调的嗅觉能力，可以探测到极低浓度的信息素气味。关于蛾子嗅觉系统的结构和功能，关于信息素的检测，人们已经知道了很多。然而，我们缺乏对更广泛的嗅觉系统的了解，特别是飞蛾在多大程度上能够检测和区分不是信息素混合物成分的气味。在这里，我们描述了一种方法，用于研究蛾的非信息素气味的可区分性。在一系列实验中，我们发现六分蛾可以(1)辨别许多不同的气味，但(2)茉莉酸甲酯既不容易获得食物奖励，也不容易与其他气味区分开来。茉莉酸甲酯缺乏反应可能与其在寄主植物防御中的作用有关。这项工作为未来将昆虫非信息素编码的生理和药理学研究映射到对这些气味的习得行为反应提供了基础。(C)2001爱思唯尔科学有限公司。保留所有权利。
Moths possess highly tuned olfactory capabilities, which can detect very low concentrations of pheromonal odorants. Much is known about the structure and function of the moth olfactory system with respect to detection of pheromones. However, we lack an understanding of the broader olfactory system, in particular, to what degree are moths capable of detecting and discriminating odorants that are not components of pheromone blends. Here we describe a methodology used to investigate the discriminability of nonpheromonal odors in moths. In a series of experiments we show that the moth Manduca sexta can (1) discriminate a number of different odors but (2) that methyl jasmonate, neither readily conditions to a food reward nor is it readily discriminated from another odor. The lack of a response to methyl jasmonate may be related to its role in host plant defense. This work provides a basis for future mapping of physiological and pharmacological studies of nonpheromonal coding in insects onto learned behavioral responses to those odorants. (C) 2001 Elsevier Science Ltd. All rights reserved.