Tyagi M P, Dalela R C, Verma S R
Z Mikrosk Anat Forsch. 1980;94(1):21-32.
The alkaline phosphatase activity is mapped in all the parts of the digestive system of Colisa fasciatus, Macrognathus aculeatus, Notopterus notopterus and Nandus nandus. In the posterior region of the alimentary canal of all the 4 fishes the activity is poorer as compared to other parts. In Colisa fasciatus and Macrognathus aculeatus, the activity at the distal end of pyloric caeca is poorer as compared to the proximal part. In Notopterus notopterus and Nandus nandus however, it is practically of the same intensity at both the parts. Mucosal and submucosal layers have been found to have intense alkaline phosphatase activity as compared to muscularis and serosal layers. Except Nandus nandus, gastric glands of all the remaining fishes show partial activity of this enzyme. However, gastric epithelium of all the four fishes shows good activity. Hepatic cells are rich in alkaline phosphatase activity. The cytoplasm of the hepatic cells and pancreatic acinar cells have intense reaction. Presence of alkaline phosphatase is in relation with the secretory and absorption activity of tissue or cells.
对条纹斗鱼、尖吻鲈、长背鱼和南鲈消化系统的所有部位进行了碱性磷酸酶活性定位。与其他部位相比，这4种鱼消化道的后部区域活性较低。在条纹斗鱼和尖吻鲈中，幽门盲囊远端的活性比近端低。然而，在长背鱼和南鲈中，这两个部位的活性实际上相同。已发现黏膜层和黏膜下层的碱性磷酸酶活性比肌层和浆膜层强。除南鲈外，其余所有鱼类的胃腺均显示该酶的部分活性。然而，所有4种鱼的胃上皮均显示出良好的活性。肝细胞富含碱性磷酸酶活性。肝细胞和胰腺腺泡细胞的细胞质有强烈反应。碱性磷酸酶的存在与组织或细胞的分泌和吸收活性有关。
