Olfactory receptors on the antenna ofPeriplaneta: Response constellations that encode food odors
Olfactory receptors on the antenna ofPeriplaneta: Response constellations that encode food odors
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大蠊触角上的嗅觉感受器：编码食物气味的反应星座
DOI：
10.1007/bf00656855
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发表时间：
1978
期刊：
影响因子：
--
通讯作者：
H. Sass
中科院分区：
文献类型：
--
作者：
H. Sass
采用电生理学方法研究了植物源和动物源食物切碎样品的气味刺激美洲大蠊成虫不同类型嗅觉感受器的有效性。感觉细胞以一定的固定组合出现，特别是感器，并根据它们的反应提供了感器的分类。二细胞感器包括戊醇型、辛醇型、己醇型和醇萜型;三细胞感器包括丁酸型;四细胞感器包括冷己酸型和胺型。描述了不同感受器中的各种细胞类型对不同食物的反应。每种受体类型对几种食物有反应，没有观察到只对一种食物有特异性反应的受体。有人建议，食品气味的识别不依赖于关键气味的检测，但在不同类型的受体中产生的非特异性气味成分的组合差异的复杂模式的兴奋。
Electrophysiological methods were used to examine the effectiveness of odours from chopped samples of foods of plant and animal origin in stimulating different types of olfactory receptors in adults of Periplaneta americana (L.). The sense cells occurred in certain fixed combinations in particular sensilla, and provided a classification of sensilla based on their responses. Two-celled sensilla included pentanol, octanol, hexanol and alcohol-terpene types; three-celled sensilla comprised the butyric acid type; and four-celled sensilla included cold-hexanoic acid type and amine type sensilla. The responses of the various cell types in the different sensilla to different foods are described. Each of the receptor types responded to several kinds of food, and no receptor was observed to respond specifically to one kind only. It is suggested that the recognition of food odours depends not on the detection of key odours but on the complicated patterns of excitation in the receptors of different types that arise from differences in the combination of unspecific odour components.