CONTRIBUTION TO PROBLEM OF STRUCTURAL ORGANIZATION OF PRESYNAPTIC AREA

被引：131

作者：

PFENNINGER, K

SANDRI, C

AKERT, K

EUGSTER, CH

机构：

[1] Brain Research Institute, Department of Organic Chemistry, University of Zurich, Zurich

来源：

BRAIN RESEARCH | 1969年 / 12卷 / 01期

关键词：

D O I：

10.1016/0006-8993(69)90051-1

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

A new method of synaptic staining has been developed by using bismuthiodide block impregnation combined with uranyl acetate and lead hydroxide contrast. Synaptic junctions of the cat subfornical organ have been studied in detail with this procedure. Special emphasis was placed upon the spatial organization of presynaptic dense projections of Gray which consist of a grid with hexagonal pattern of peaks, interconnecting filaments and holes. A three-dimensional reconstruction of the presynaptic area is presented. The new impregnation spares the 'clear' vesicles but impregnates the large dark-cored vesicles (1000-1500 Å) rather well. The similar appearance of vesicular cores and presynaptic dense projections as well as their occasional proximity is discussed with respect to functional relationships between the two structures. © 1969.

引用

页码：10 / +

页数：1

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