Mazet F, Cartaud J
J Cell Sci. 1976 Nov;22(2):427-34. doi: 10.1242/jcs.22.2.427.
The freeze-fracturing technique was used to characterize the junctional devices involved in the electrical coupling of frog atrial fibres. These fibres are connected by a type of junction which can be interpreted as a morphological variant of the "gap junction" or "nexus". The most characteristic features are rows of 9-nm junctional particles forming single or anastomosed circular profiles on the inner membrane face, and corresponding pits on the outer membrane face. Very seldom aggregates consisting of few geometrically disposed 9-nm particles are found. The significance of the junctional structures in the atrial fibres is discussed, with respect to present knowledge about junctional features of gap junctions in various tissues, including embryonic ones.
冷冻断裂技术被用于描述参与蛙心房纤维电耦合的连接装置。这些纤维通过一种连接相连，这种连接可被解释为“间隙连接”或“连接子”的一种形态变体。最具特征性的是在内膜面上形成单个或吻合的圆形轮廓的9纳米连接颗粒排，以及在外膜面上的相应凹坑。极少发现由少量按几何排列的9纳米颗粒组成的聚集体。结合目前关于包括胚胎组织在内的各种组织中间隙连接的连接特征的知识，讨论了心房纤维中连接结构的意义。
