

@article {11642,
	title = {{Differentiation of the tegument and associated structures in Diphyllobothrium dendriticum Nitsch (1824) (Cestoda: Pseudophyllidea). An electron microscopical study.}},
	journal = {International Journal of Parasitology},
	volume = {3},
	number = {3},
	year = {1973},
	pages = {321{\textendash}327},
	abstract = {Grammeltvedt {\{}Anne-Fran{\{}{\c c}{\}}ois{\}} 1973. Differentiation of the tegument and associated structures in Diphyllobothrium dendriticum Nitsch 1824 {\{}(Cestoda{\}} : Pseudophyllidea). An electron microscopical study. International Journal for Parasitology3: 321{\textendash}327. The differentiation of the tegument and associated structures of the coracidium, procercoid, plerocercoid and adult is described. The embryophore is composed of four zones and is covered by a fibrous layer resembling a glycocalyx. The oncospheral plasma membrane is extensively folded. A typical cestode tegument, with a distal and perinuclear cytoplasm, is probably already existing in the coracidium. The formation of the microvilli starts after about three days in the copepod host. In young procercoids ribosomes and Golgi complexes were observed in the distal cytoplasm. These organelles disappear at later stages. The infective procercoid has a typical tegument. The microvilli are shaped like a thorn compressed from the sides. They have an electron dense tip and a less dense base in which microfilaments are seen. Bodies, called disc-shaped and lamellated bodies, are described. The microvilli of the plerocercoid are characterized by a great variation in shape. The villi are bounded by two unit membranes. The lamellated bodies are especially well developed. The adult microvilli are uniform in shape. The lamellated bodies are few in young adults and disappear in mature worms.},
	issn = {0020-7519},
	doi = {10.1016/0020-7519(73)90110-0},
	author = {Grammeltvedt, A}
}
