Classification of antennal olfactory receptors of the cockroach, Periplaneta americana L
Classification of antennal olfactory receptors of the cockroach, Periplaneta americana L
复制标题
美洲大蠊蟑螂触角嗅觉感受器的分类
作者：
K. Fujimura;F. Yokohari;H. Tateda
研究了美洲大蠊蟑螂触角嗅觉感受器系统的响应谱和特征刺激强度-响应曲线。 1. 记录所有不同类型嗅觉感受器的受体细胞对 50 种任意选择的化学物质的反应，并通过外部结构进行识别。 2. 大多数接受检查的受体细胞（87%）可分为八组之一。一种信息素敏感细胞，基于每个受体细胞响应谱的相似性。 3. 不同组的反应谱存在一定的重叠。 4.单个受体细胞对各种成分的刺激-反应曲线并不总是平行的，从而表明受体可能具有多个位点。 5. 生理上分类为同一组的感受器细胞偶尔可见于两种类型的塞内尔，即具有不同刺激传导系统的塞内尔。我们认为受体膜可能主要有助于感觉器官的辨别特性，而刺激传导系统则起辅助作用。
Response spectra and characteristic stimulus intensity-response curves were investigated in the antennal olfactory receptor system of the cockroach, Periplaneta americana. 1. Responses to 50 arbitrarily selected chemicals were recorded from receptor cells of all the various types of olfactory sensilla, identified by external structure. 2. Most receptor cells (87%) examined could be classified into one of eight groups and. one phermone-sensitive cell, on the basis of similarities in response spectra of each receptor cell. 3. There was some overlap in the response spectra of the different groups. 4. Stimulus-response curves of single receptor cells to various components were not always in parallel, thereby suggesting that the receptor may have multiple sites. 5. Receptor cells classified physiologically into the same group are occasionally seen in two types of senilla, that in senilla with different stimulus conducting systems. We suggest that the receptor membrane may contribute mainly to the discriminatory properties of the sensory organ while the stimulus conducting system plays an auxiliary role.