Ultrastructural Study on the Salivary Gland of a Korean Freshwater Pulmonate, Radixauricularia coreana
Kye- Heon Jeong and Yong- Hwan An
Division of Lif e Sciences, College of Natural Sciences, Soonchunhyang University
A histochemica l and ultrastructural study on the salivary gland of a freshwater snail Radix auricularia coreana was conducted. The epithelial cells of the salivary gland are composed of 9 types of cells . Two types out of them work as frame cells supporting the epithelium and the secretory cells embedded within the epithelium. Seven types of secretory cells are classifiable depend on their histochemical reactions and ultrastructures. The materia ls secreted by the secretory cells are neutral mucopolysaccharide, acid mucopolysaccharide, and glycogen.
