Actas de congresos
Paracrystalline Structures In The Epithelial Principal Cells Of The Epididymis Of Water Buffalo (bubalus Bubalis)
Registro en:
Tissue And Cell. , v. 31, n. 3, p. 335 - 341, 1999.
408166
10.1054/tice.1999.0038
2-s2.0-0032798022
Autor
Santos J.N.
Dolder H.
Institución
Resumen
The ultrastructure of many principal cells in the cauda epididymis of water buffaloes with ages varying between 4, 18, 24, 30 and 36 months, revealed, in many cells, the presence of long, curved paracrystalline structures that are quite large and frequently encountered in the cytoplasm, usually near the nucleus. Concomitantly or not, smaller rod-like, hexagonal or curled structures can be found in the nucleus. Both structures, cytoplasmic and intranuclear, are made up of a sheath of parallel filaments. These paracrystals may appear as thin, regularly spaced filaments that are associated with fine, evenly spaced subunits. Occasionally, the association of paracrystalline structures with membranes similar to the endoplasmic reticulum was observed, but no membranes were consistently found in close contact with the nuclear crystalloids. It is postulated that both structures are proteinaceous and may represent stored enzymes or substances present in the intraluminal fluid, which are absorbed and initially stored in numerous intraepithelial vacuoles of the corpus and cauda of the buffalo epididymis. 31 3 335 341 Arias, A.E., Bendayan, M., Intracisternal crystals in pancreatic acinar cells: Failure in the distinct aggregation of secretory proteins (1993) Eur. J. Cell Biol., 62, pp. 282-293 Baccetti, B., Dallai, R., Pallini, F., Afzeluis, B.A., Protein of insect sperm mitochondrial crystals: Cristallomitin (1977) J. Cell Biol., 73, pp. 594-600 Báo, S.N., Lins, U., Farina, M., Sousa, W., Mitochondrial derivatives of Culex quinquefasciatus (Culicidae) spematozoon: Some new aspects evindenced by cytochemistry and image processing (1992) J. Struct. Biol., 109, pp. 46-51 Báo, S.N., Quaggio-Grassiotto, I., Dolder, H., Acrosome formation in Ceratites capitata (Díptera, Teraphrytidae) (1987) Cytobios, 58, pp. 93-100 Bigazzi, M., Ultrastructural and cytochemical investigations on the functional role of proteinaceous nuclear inclusions (PNIs) in chlorenchyma plant cells (1993) Biol. Cell, 79, pp. 147-159 Dolder, H., Cytoskeletal bridges between organelles in sperm flagellum of T. infestans (Hemiptera, Rediviidae) (1988) J. Ultrastruct. and Mol. Struct. Res., 101, pp. 159-164 Gouranton, J., Folliot, R., Thomas, D., Fine structure and nature of the crystalloid intranuclear and intracitoplasmic inclusions in dog cauda epididymidis (1979) J. Ultrastruc. Res., 69, pp. 273-278 Hawkes, F., Presence of a crystal in the cytoplasm of the male germ cells of the garden dormouse Eliomys quercinus L (1993) J. Submicrosc. Cytol. Pathol., 25, pp. 407-415 Kömüves, L.G., Nichols, B.L., Hutchens, T.W., Heath, J.P., Formation of crystalloid inclusions in the small intestine of neonatal pigs: An immunocytochemical study using colloidal gold (1993) Histochem. J., 25, pp. 19-29 Landim, E., Alvarenga, F.C., Crystaloid inclusions present in the epididymal principal cells of the buffalo (Bubalus bubalis: Bovidae) (1988) Rev. Bras. Biol., 48, pp. 281-288 López, M.L., Grez, P., Gribbel, I., Bustos-Obregón, E., Cytochemical and ultrastructural characteristics of the stallion epididymis (Equus caballus) (1989) J. Submicrosc. Cytol. Pathol., 21, pp. 103-120 Piomboni, P., Microanatomy of the edididymis and vas deferens J (1997) Submicrosc. Cytol. Pathol., 29, pp. 583-593 Santos, J.N., Estrutura e Ultraestrutura do epitélio epididimário de búfalos (Bubalus bubalis) em diferentes idades (1995) Master Science Thesis. Santos, J.N., Dolder, H., Intracytoplasmic and intranuclear paracrystalline structures in principal cells of the epididymary epithelium of the water buffalo (Bubalus bubalis) (1995) Acta Microsc., 4 (Supplement, p. 217 Sousa, M., Azevedo, C., Cytochemical study of the spermatozoon and the early fertilization in marthasterias glacialis (Echinodermata, Asteriodae) (1986) Biol. Cell, 56, pp. 79-83 Stadhouders, A.M., Jap, P.H.K., Winkler, H.P., Eppenberger, H.M., Wallimann, T., Mitochondrial creatine kinase: A major constituent of pathological inclusions seen in mitochondrial myopathies (1994) Proc. Nat. Acad. Sci. USA., 91, pp. 5089-5093 Vicentini, C.A., Orsi, A.M., Gregório, E.A., Dias, S.M., Ultraestrutura do segmento terminal do epidídimo no gato (Felix domestica) (1985) Rev. Bras. Ciênc. Morfol., 2, pp. 24-31