雄性美洲驼（小羊驼）的生殖，南美骆驼科动物。I. 成熟睾丸的精子发生及曲细精管间间隙的组织结构
Reproduction in the male llama (Lama glama), a South American camelid. I. Spermatogenesis and organization of the intertubular space of the mature testis.
作者信息
Delhon G A, von Lawzewitsch I
出版信息
Acta Anat (Basel). 1987;129(1):59-66.
The cycle of the seminiferous epithelium of the llama was divided into eight stages, using as criteria the shape and distribution of the germ cell nuclei, the location of the spermatids, the presence of meiotic figures and the release of spermatozoa from the tubular wall. Cell populations making up each stage are described. The relative frequencies of stages 1 through 8 were: 9.86, 12.46, 17.65, 14.12, 5.81, 8.09, 13.04 and 18.89%, respectively. In the seminiferous epithelium, spermatogonia of the A and B type are present and twelve spermiogenic steps can be recognized. Interstitial (Leydig) cells are packaged together forming large masses and elongated cords and share the intertubular space with one or two central great lymphatic vessels and few capillaries. Season male Leydig cells contain lipid droplets in their cytoplasm and show a marked immunoreactive testosterone reaction.
美洲驼生精上皮的周期分为八个阶段，依据生殖细胞核的形状和分布、精子细胞的位置、减数分裂图像的存在以及精子从管壁释放情况作为标准。描述了构成每个阶段的细胞群体。第1至8阶段的相对频率分别为：9.86%、12.46%、17.65%、14.12%、5.81%、8.09%、13.04%和18.89%。在生精上皮中，存在A型和B型精原细胞，可识别出十二个精子发生步骤。间质（莱迪希）细胞聚集在一起形成大团块和细长索状结构，并与一两条中央大淋巴管和少量毛细血管共享管间空间。季节性雄性莱迪希细胞的细胞质中含有脂滴，并显示出明显的睾酮免疫反应阳性。
Zotero 插件