Morphology, distribution, and specificity of olfactory receptor cells in salmonid fishes.
Morphology, distribution, and specificity of olfactory receptor cells in salmonid fishes.
复制标题
鲑鱼嗅觉受体细胞的形态、分布和特异性。
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
G. Thommesen
中科院分区：
文献类型：
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作者：
G. Thommesen
对三种鲑鱼的嗅觉上皮进行了电生理和解剖学研究。用两个记录电极同时对一个共同的不同电极记录嗅觉花环的不同通道。用扫描电子显微镜(SEM)检查了由两个薄板组成的活检组织，这些薄板分别包围着每个检查走廊。电生理结果证实，胆盐受体在所有走廊的周边部有较高的相对密度，在中央部分有较高的氨基酸受体的相对密度。扫描电子显微镜观察表明，纤毛感受器细胞数量多于微绒毛细胞。纤毛感受器细胞的密度向每个薄片的外缘增加。微绒毛受体细胞的密度向中央边缘增加。电生理和解剖学观察之间的对应关系支持这样的假设，即纤毛的受体细胞是胆盐样物质所特有的，微绒毛是氨基酸所特有的。
Electrophysiological and anatomical investigations of the olfactory epithelium of three salmonid species have been coordinated. Different corridors in the olfactory rosettes were examined by recording of the electro-olfactogram (EOG) using two recording electrodes simultaneously against one common indifferent electrode. Biopsies comprising the two lamellae bounding each of the examined corridors were examined by scanning electron microscopy (SEM). The electrophysiological results confirm a higher relative density of bile salt-receptors in the peripheral parts of all the corridors, and a higher relative density of amino acid-receptors in central parts. The SEM micrographs show that ciliated receptor cells are more numerous than microvillous ones. The density of ciliated receptor cells increases towards the peripheral margin of each lamella. The density of microvillous receptor cells increases towards the central margin. The correspondence between the electrophysiological and the anatomical observations support the hypothesis that the ciliated receptor cells are those specific to bile salt-like substances, the microvillous those specific to amino acids.