摘要
为探讨大菱鲆的消化生理,用组织学和组织化学方法对其消化系统进行了研究。胃黏膜上皮由柱状细胞组成,胃腺上皮由Ⅰ型细胞和Ⅱ型细胞构成,幽门盲囊与肠黏膜上皮由柱状细胞和数量不等的黏液细胞组成。胃黏膜柱状细胞呈现酸性磷酸酶和一定的脂酶活性;胃腺Ⅰ型细胞分泌黏液,Ⅱ型细胞呈现蛋白酶活性。幽门盲囊与肠黏膜柱状细胞呈现蛋白酶、脂酶和非特异性酯酶活性,其游离端胞质和质膜还分别具有酸性磷酸酶和碱性磷酸酶活性。肝细胞呈现蛋白酶活性,另有贮存糖原和脂肪等功能。胰腺仅显示较弱的脂酶及非特异性酯酶活性。
To investigate the digestive mechanism of Scophthalmus maximus L. , the digestive system was studied with histological and histochemical methods. The epithelium of the stomach consisted of columnar cells. The epithelium of the gastric gland was made up of type Ⅰ and type Ⅱ cells. The epithelium of the pyloric caecum and the intestine consisted of columnar cells and different numbers of mucous cells. The columnar cells of the stomach showed activity of acid phosphatase and weak lipase. The type Ⅰ cells of the gastric gland secreted mucous, and the type Ⅱ cells showed activity of proteinase. The columnar cells of the pyloric caecum and the intestine showed activity of proteinase, lipase, non-specific esterase, and the cytoplast and plasma membrane of their free ends showed activity of acid phosphatase and alkaline phosphatase. The hepatocytes showed activity of proteinase, and the function of storing glycogen and fat. The pancrease only showed weak activity of lipase and non-specific esterase.
出处
《海洋水产研究》
CSCD
北大核心
2008年第6期47-51,共5页
Marine Fisheries Research
基金
山东省科技攻关项目(2004GG220513)资助
关键词
大菱鲆
消化系统
组织学
组织化学
Scophthalmus maximus Digestive system Histology Histochemistry