FINE-STRUCTURE OF AFFERENT SYNAPSE OF HAIR CELLS IN SACCULAR MACULA OF GOLDFISH, WITH SPECIAL REFERENCE TO ANASTOMOSING TUBULES
FINE-STRUCTURE OF AFFERENT SYNAPSE OF HAIR CELLS IN SACCULAR MACULA OF GOLDFISH, WITH SPECIAL REFERENCE TO ANASTOMOSING TUBULES
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DOI：
10.1007/bf01178223
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发表时间：
1977-01-01
期刊：
影响因子：
--
通讯作者：
SAITO, K
中科院分区：
文献类型：
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作者：
HAMA, K;SAITO, K
对金鱼球囊黄斑毛细胞传入突触的精细结构进行了研究。突触前膜上可见一个球形致密小体，周围环绕着突触小泡。在致密小体下方的突触前膜上，可观察到致密条和一排排突触小泡的交替平行排列。每排由5-6个立即可用的突触小泡组成，每个突触观察到5-6排这样的小泡。有时在致密的小体周围可见吻合的小管。这些小管是由质膜直接向内折叠形成的。在吻合小管的外围可见许多包被的小泡。文中还讨论了吻合小管在突触囊泡膜翻转中的可能作用。
The fine structure of the afferent synapse was studied in the hair cells of the goldfish saccular macula. A spherical dense body which is surrounded by synaptic vesicles is observed in association with the presynaptic membrane. An alternating, parallel arrangement of dense bars and of rows of synaptic vesicles is observed on the presynaptic membrane beneath the dense body. Each row consists of 5-6 immediately available synaptic vesicles, and 5-6 such rows of vesicles are observed per synapse. Sometimes anastomosing tubules are found around the dense body. The tubules are formed by direct infolding of the plasma membrane. Many coated vesicles are found at the periphery of the anastomosing tubules. A possible role of the anastomosing tubules in the turnover of the synaptic vesicle membrane was discussed.