分层膜：硬骨鱼鳔中气体的扩散屏障。

Layered membranes: a diffusion barrier to gases in teleostean swimbladders.

作者信息

Brown D S, Copeland D E

出版信息

Tissue Cell. 1978;10(4):785-96. doi: 10.1016/0040-8166(78)90063-0.

Abstract

Flattened cells are dispersed in an overlapping fashion within the submucosa of closed (physoclistous) swimbladders. Within the cells are located round platelets best seen by phase or interference type microscopy. At the electron microscope level the platelets are revealed as repeated, numerous layers of membranous discs. Each disc is a bilayer with an enlarged rim. The bilayer is strongly and preferentially reactive to osmium tetroxide. Swimbladder walls are known to be highly resistant to passage of gases. The randomly disposed platelets with the highly ordered layering of membranes may provide that physical resistance to gas movement.

摘要

扁平细胞以重叠的方式分散在封闭（闭鳔类）鳔的黏膜下层中。在这些细胞内有圆形血小板，通过相差显微镜或干涉显微镜能最清楚地看到。在电子显微镜下，血小板呈现为重复的、多层的膜状圆盘。每个圆盘是一个带有扩大边缘的双层结构。该双层结构对四氧化锇有强烈且优先的反应性。已知鳔壁对气体通过具有高度抗性。随机分布的血小板以及高度有序的膜层排列可能为气体运动提供了这种物理抗性。