van den Hurk R, Resink J W, Peute J
Cell Tissue Res. 1987 Mar;247(3):573-82. doi: 10.1007/BF00215751.
The seminal vesicle of the African catfish, Clarias gariepinus, consists of 36-44 fingerlike lobes built up of tubules in which a fluid is secreted containing acid polysaccharides, acid-, neutral- and basic proteins, and phospholipids. In this fluid sperm cells are stored. The seminal vesicle fluid immobilizes the sperm cells. After ejaculation, it prolongs the period of sperm activity. The seminal vesicle fluid is secreted by the epithelium lining the tubules. The tubules in the proximal part of the lobes are predominantly lined by a simple cylindrical and those of the distal part by a simple squamous epithelium. These epithelial cells contain enzymes involved in energy-liberating processes, the enzyme activities being proportional to the height of the cells. Interstitial cells between the tubules have enzyme-histochemical and ultrastructural features indicative of steroid biosynthesis. Similar characteristics are found in testicular interstitial cells. The most rostral seminal vesicle lobes and the most caudal testicular efferent tubules form a network of tubules that opens at the point where the paired parts of the sperm ducts fuse with each other. The tubules of most seminal vesicle lobes, however, form a complex system that fuses with the unpaired part of the sperm duct.
非洲鲶鱼（Clarias gariepinus）的精囊由36 - 44个指状叶组成，这些叶由小管构成，小管中分泌一种含有酸性多糖、酸性、中性和碱性蛋白质以及磷脂的液体。精子细胞储存在这种液体中。精囊液可使精子细胞失去活动能力。射精后，它能延长精子的活动期。精囊液由衬于小管的上皮细胞分泌。叶近端部分的小管主要由单层柱状上皮衬里，远端部分则由单层鳞状上皮衬里。这些上皮细胞含有参与能量释放过程的酶，酶活性与细胞高度成正比。小管之间的间质细胞具有酶组织化学和超微结构特征，表明有类固醇生物合成。在睾丸间质细胞中也发现了类似特征。最前端的精囊叶和最尾端的睾丸输出小管形成一个小管网络，该网络在输精管成对部分相互融合的点处开口。然而，大多数精囊叶的小管形成一个复杂的系统，与输精管的不成对部分融合。
