剑尾鱼肝脏结构的光镜和透射电镜观察  

Light and transmission electron microscopical observation of the liver structure of swordtail,Xiphophorus helleri

作　　者：方展强[1] 林敏朝[1] 

机构地区：[1]华南师范大学生命科学学院,广东广州510631

出　　处：《电子显微学报》2006年第3期265-270,共6页Journal of Chinese Electron Microscopy Society

基　　金：广东省科技计划项目资助项目(No.2004B40101015)

摘　　要：应用光学显微镜和透射电镜对剑尾鱼(Xiphophorus helleri)肝脏的组织结构和超微结构进行了观察。结果表明,剑尾鱼肝细胞存在双态现象,根据其胞质内的电子密度不同可以区分为D细胞和L细胞2种类型。剑尾鱼肝细胞具单核,核仁显著;胞质内含有粗面内质网、线粒体、糖原颗粒和脂滴等细胞器和内含物。胆小管由相邻肝细胞质膜凹陷围成,而肝血窦则由内皮细胞的胞质、成纤维细胞、贮脂细胞和枯氏细胞参与构成。并讨论了硬骨鱼类肝脏的一般组织结构和超微结构特点。The structure and ultrastructure of the liver in Xiphophorus helleri have been investigated using light and transmission electron microscopy. The result shows that, according to the electron density in hepatic cytoplasm, the hepatic cells can be divided into two types——＂light cell＂and ＂dark cell＂. The hepatocyte contained a nucleus. Pronounced nucleoli were observed in each nucleus. Rough endoplasmic reticulum, mitochondria, glycogen and lipid droplets were abundant in cytoplasm of hepatocytes. The bile cannaliculi was makeup by rosettes of hepatocytes. Hepatic sinusoid was formed by endothelial cell, fibroblasts, fat-storing cells and Kupffer＇s cells. The histological structure and ultrastructure of the liver of teleosts were discussed.

关 键 词：肝脏 组织结构 超微结构 剑尾鱼 

分 类 号：Q954.5[生物学—动物学]