Smith F E, Berlin J D
Cell Tissue Res. 1977 Jan 12;176(2):235-42. doi: 10.1007/BF00229464.
Electron microscopic examination of normal human testicular tissue revealed annulate lamellae (AL) in the cytoplasm of primary spermatocytes and spermatids. AL of primary spermatocytes are encountered in the perinuclear region, parallel to the nuclear envelope and form single or multiple membranous profiles containing numerous annuli (500-600 A in diameter) frequently associated with a fibrillar electron dense material. Spermatids contain numerous layers of AL either continuous with the nuclear envelope and caudal to the acrosome or peripherally positioned in the cytoplasm. Individual lamellae possess terminal dilations and display continuities with the endoplasmic reticulum. The interlamellar space in spertmatid AL is entirely filled with a fine granular electron dense material. Additionally, the breakdown of AL in spermatozoan residual bodies is indicated by a dilation of AL cisternae to form vacuoles following the dissolution of pore complexes.
对正常人类睾丸组织的电子显微镜检查显示，初级精母细胞和精子细胞的细胞质中存在环状片层（AL）。初级精母细胞的环状片层出现在核周区域，与核膜平行，形成单个或多个膜状结构，其中包含许多环（直径500 - 600埃），这些环常与一种纤维状电子致密物质相关联。精子细胞含有多层环状片层，它们要么与核膜连续且位于顶体尾部，要么位于细胞质周边。单个片层具有末端扩张，并与内质网相连。精子细胞环状片层的片层间空间完全充满了细颗粒状电子致密物质。此外，精子残余体中环状片层的分解表现为在孔复合体溶解后，环状片层池扩张形成液泡。
