Hama K, Saito K
J Neurocytol. 1977 Aug;6(4):361-73. doi: 10.1007/BF01178223.
The fine structure of the afferent synapse has been 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 five to six immediately available synaptic vesicles, and five to six 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 is discussed.
已经对金鱼球囊斑毛细胞传入突触的精细结构进行了研究。在与突触前膜相关联的位置观察到一个被突触小泡包围的球形致密体。在致密体下方的突触前膜上观察到致密条带和突触小泡排的交替平行排列。每排由五到六个立即可用的突触小泡组成，每个突触观察到五到六排这样的小泡。有时在致密体周围发现吻合小管。这些小管由质膜直接内陷形成。在吻合小管的周边发现许多有被小泡。讨论了吻合小管在突触小泡膜周转中的可能作用。
