Nickerson S C, Akers R M, Weinland B T
Cell Tissue Res. 1982;223(2):421-30. doi: 10.1007/BF01258499.
Ultrastructural examination of milk secretory cells from lactating bovine mammary gland revealed presence of numerous microtubules in the apical and paranuclear cytoplasm, particularly in the vicinity of Golgi components. Most microtubules were oriented perpendicular to the apical plasma membrane and appeared to form a framework around Golgi dictyosomal elements and secretory vesicles. In comparison, non-secretory cells obtained from involuting glands displayed few microtubules and these were randomly located throughout the cytoplasm with no particular orientation.
对泌乳期奶牛乳腺的乳汁分泌细胞进行超微结构检查发现，顶端和核旁细胞质中存在大量微管，尤其是在高尔基体成分附近。大多数微管垂直于顶端质膜排列，似乎围绕高尔基体的扁平囊泡元件和分泌小泡形成一个框架。相比之下，取自退化腺体的非分泌细胞显示微管较少，且随机分布于整个细胞质中，没有特定的排列方向。
