동양달팽이 (Nesiohelix samarangae) 타액선의 조직화학적 및 미세구조적 연구

Histochemical and Ultrastructural Studies on the Salivary Gland of a Land Snail, Nesiohelix samarangae

Histochemical and ultrastructural studies on the salivary gland and salivary duct of a land snail Nesiohelix samarangae were conducted to observe structural characteristics and function. The salivary gland consisted of one type of epithelial cell, one type of supporting cell, and six types of gland cells. Four out of six gland cell types were histochemically identified on these secretions. The one secreted acid mucopolysaccharide and the other three secreted neutral mucopolysaccharide. The salivary duct epithelium had only one type of columnar cell with microvilli on its luminal surface. The basal protoplasmic membranes of the epithelial cells were deeply infolded so many times all along the cell bases.