皱纹盘鲍消化腺细胞类型和分泌产物  

THE CELL TYPES AND SECRETION OF THE DIGESTIVE GLAND IN HALIOTIS DISCUS HANNAI INO

作　　者：崔龙波[1] 刘传琳[1] 刘迅[1] 陆瑶华[1] 

机构地区：[1]烟台大学生物化学系,山东烟台264005

出　　处：《动物学报》2001年第1期32-37,T005,T006,共8页ACTA ZOOLOGICA SINICA

基　　金：国家自然科学基金!资助项目 (No .39470 35 1)

摘　　要：对皱纹盘鲍消化腺进行了组织学、组织化学、超微结构及酶活性测定等研究。消化腺由消化细胞和嗜碱性细胞组成。消化细胞能内吞腺管腔内的外源性物质 ,细胞内充满大量与异噬功能有关的囊泡。消化细胞具有内吞和细胞内消化、分泌、贮存等功能。嗜碱性细胞含有发达的粗面内质网以及许多含铁的折光小体 ,具有分泌和贮存金属离子的功能。消化腺还呈现多种水解酶活性。Histology, histochemistry, ultrastructure and activity of some hydrolytical enzymes of the digestive gland of Haliotis discus hannai Ino have been studied.The gland consists of two types of cells, digestive cells and basophilic cells. The digestive cells are capable of ingesting exogenous material from the lumen of the tubule, and contain a number of vesicles concerning with the heterophagic function of the cells. The vesicles exhibit considerable variation in size and appearance in different regions of the cells. Those in the apical and sub apical regions of the cells, which are considered as heterophagosomes, are involved in accumulation of the ingested material. Those in the mid regions, regarded as heterolysosomes, give a positive reaction to tests for acid phosphatase and non specific esterase. They concern with intracellular digestion of the ingested material. The vesicles in the basal regions, considered as residual bodies, are involved in accumulation of undigested and indigestible residues. The digestive cells secrete proteinase. Numerous lipid globules in the cells show that the digestive cells can reserve food material. The basophilic cells are characterized by the possession of a well developed rough endoplasmic reticulum and many refractile spherules which give a intense reaction to test for iron. The cells also secrete proteinase. The refractile spherules which contain metals may serve a detoxification function. The tests for enzymatic activity in vitro show that the digestive gland is positive for diastase, cellulose, aliginase and laminarinase.

关 键 词：皱纹盘鲍 消化腺 组织学 组织化学 超微结构 水解酶 腹足纲 

分 类 号：Q954[生物学—动物学]