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出 处:《烟台大学学报(自然科学与工程版)》1999年第4期263-267,308,共6页Journal of Yantai University(Natural Science and Engineering Edition)
基 金:国家自然科学基金
摘 要:以多种组织化学方法研究了扁玉螺的消化系统.除直肠外,其余消化道的纤毛柱状细胞呈现蛋白酶、非特异性酯酶和脂酶活性,其游离端质膜呈现碱性磷酸酶活性.杯状细胞分泌弱硫酸化酸性粘多糖.食道腺腺细胞以及肝脏消化细胞显示蛋白酶、非特异性酯酶和脂酶活性,后者还显示酸性磷酸酶活性.隐窝细胞含有铁.The digestive system of Neverita didyma Rding is studied with the histochemical method. The cilliated columnar cells of the digestive tract except rectum show activity of proteinase, non?specific esterase and lipase. The apical membrane of the cells show alkaline phosphatase activity. The goblet cells secrete acid muco?polysaccharides. The activity of proteinase, non?specific esterase and lipase occure in the gland cells in the esophagus gland and digestive cells in the liver. The digestive cells in the liver also show activity of acid phosphatase. The crypt cells and the storage cells in the liver contain iron and glycogen respectively.
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