title: The histochemistry and fine structure of the embryophore of Shipleya inermis (Cestoda).
abstract: The embryophore (inner capsule) of the tapeworm Shipleya inermis was studied with histochemistry and electron microscopy. It was found to be unique for the cestodes in that it has a laminated construction. During development lamina are added until there are 10 which are arranged in an irregular zig-zag pattern. The embryophore is positive to tests for acid and alkaline phosphatase, and the Hales test for acid mucopolysaccharides. Permeability of tapeworm egg coverings is discussed.
mesh_terms: D000135:Acid Phosphatase / Q000032:analysis; D000469:Alkaline Phosphatase / Q000032:analysis; D000818:Animals; D002589:Cestoda / Q000032:analysis / Q000254:growth & development / Q000648:ultrastructure*; D005260:Female; D006025:Glycosaminoglycans / Q000032:analysis; D010063:Ovum / Q000648:ultrastructure; D010539:Permeability
chemical_list: D006025:Glycosaminoglycans; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase