Histological and histochemical characterization of the secretory cells of Choeradoplana iheringi Graff, 1899 (Platyhelminthes: Tricladida: Terricola)



Título del documento: Histological and histochemical characterization of the secretory cells of Choeradoplana iheringi Graff, 1899 (Platyhelminthes: Tricladida: Terricola)
Revista: Brazilian journal of biology
Base de datos: PERIÓDICA
Número de sistema: 000275803
ISSN: 1519-6984
Autores: 1
Instituciones: 1Universidade do Vale do Rio dos Sinos, Centro de Ciencias da Saude, Sao Leopoldo, Rio Grande do Sul. Brasil
Año:
Periodo: Ago
Volumen: 64
Número: 3a
Paginación: 511-522
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés The present study aims at providing a detailed description of the histology, as well as the first histochemical characterization, of the secretory cells of the epidermis, pharynx, and copulatory organs of Choeradoplana iheringi, in order to give further support to studies on the physiology of these organs. The secretory cells are distinguished on the basis of secretion morphology and its staining properties, using trichrome methods and histochemical reactions. Four cell types open through the epidermis of Ch. iheringi, three of them secreting basic protein and a fourth containing glycosaminoglycan mucins. The epidermal lining cells store glycogen. In the pharynx, four secretory cell types were distinguished. Two types produce glycoprotein, a third type secretes basic protein, and another one produces glycosaminoglycan mucins. In the male copulatory organs, the prostatic vesicle receives four secretory cell types containing basic protein, except for one type which produces glycoprotein. The two secretory cell types opening into the male atrium secrete, respectively, glycoprotein, and glycosaminoglycan mucins. In the female copulatory organs, the female atrium and its proximal diverticulum, the vagina, receive two types of secretory cells producing, respectively, basic protein and glycosaminoglycan mucins. Another secretory cell type constitutes the so-called shell glands which open into the common glandular duct, secreting basic protein. The lining cells of the male and female atria produce a mucous secretion containing glycosaminog
Disciplinas: Biología
Palabras clave: Anatomía e histología,
Invertebrados,
Reproducción y desarrollo,
Choeradoplana iheringi,
Platyhelminthes,
Espermatóforo,
Histoquímica,
Glándulas,
Organos reproductivos
Keyword: Biology,
Anatomy and histology,
Invertebrates,
Reproduction and development,
Choeradoplana iheringi,
Platyhelminthes,
Spermatophore,
Glands,
Reproductive organs,
Histochemistry
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