Artículo
Abstract:
The posterior gills of Uca uruguayensis are mostly lined with a thick tissue which presents the characteristics of a typical salt-transporting epithelium. Electron microscope analysis of gill tissue from crabs acclimated to both low (2.5‰) and high (44‰) salinity showed significant development of the basolateral membrane interdigitations with numerous mitochondria and conspicuous apical membrane infoldings. In high-salinity acclimated crabs, the basolateral interdigitations extended to the apical membrane. Under these conditions, apical infoldings were expanded laterally (forming wide subcuticular spaces), while the apical infoldings of low-salinity adapted animals appeared as regular leaflets. Septate desmosomes were also much more developed in low-salinity exposed animals than in those kept under high-salinity conditions. These morphological observations were analyzed for correlation with the currently-accepted ion hyporegulation model for crustaceans, which is mainly based on transcellular sodium flow. In this study, we propose an ion hyporegulation model involving apical paracellular sodium flux.
Registro:
| Documento: | Artículo |
| Título: | Salinity-induced changes in the fine structure of the gills of the semiterrestrial estuarian crab, Uca uruguayensis (Nobili, 1901) (Decapoda, Ocypodidae) |
| Autor: | Luquet, C.; Pellerano, G.; Rosa, G. |
| Filiación: | Departomento de Ciencias Biologicas, Universidad de Buenos Aires, Pab II Ciudad Universitaria, 1428 Buenos Aires, Argentina |
| Palabras clave: | Crustacea; Epithelium; Gills; Ion regulation; Salt-transportation; Uca; Ultrastructure; sodium; sodium chloride; animal tissue; apical membrane; article; basolateral membrane; cell ultrastructure; controlled study; crab; Crustacea; desmosome; electron microscope; epithelium; gill; mitochondrion; nonhuman; sodium transport; Animalia; Crustacea; Decapoda (Crustacea); Ocypodidae; Uca; Uca uruguayensis |
| Año: | 1997 |
| Volumen: | 29 |
| Número: | 4 |
| Página de inicio: | 495 |
| Página de fin: | 501 |
| DOI: | http://dx.doi.org/10.1016/S0040-8166(97)80035-3 |
| Título revista: | Tissue and Cell |
| Título revista abreviado: | TISSUE CELL |
| ISSN: | 00408166 |
| CODEN: | TICEB |
| CAS: | sodium, 7440-23-5; sodium chloride, 7647-14-5 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00408166_v29_n4_p495_Luquet |
Citas:
---------- APA ----------
Luquet, C., Pellerano, G. & Rosa, G. (1997) . Salinity-induced changes in the fine structure of the gills of the semiterrestrial estuarian crab, Uca uruguayensis (Nobili, 1901) (Decapoda, Ocypodidae). Tissue and Cell, 29(4), 495-501.http://dx.doi.org/10.1016/S0040-8166(97)80035-3
---------- CHICAGO ----------
Luquet, C., Pellerano, G., Rosa, G. "Salinity-induced changes in the fine structure of the gills of the semiterrestrial estuarian crab, Uca uruguayensis (Nobili, 1901) (Decapoda, Ocypodidae)" . Tissue and Cell 29, no. 4 (1997) : 495-501.http://dx.doi.org/10.1016/S0040-8166(97)80035-3
---------- MLA ----------
Luquet, C., Pellerano, G., Rosa, G. "Salinity-induced changes in the fine structure of the gills of the semiterrestrial estuarian crab, Uca uruguayensis (Nobili, 1901) (Decapoda, Ocypodidae)" . Tissue and Cell, vol. 29, no. 4, 1997, pp. 495-501.http://dx.doi.org/10.1016/S0040-8166(97)80035-3
---------- VANCOUVER ----------
Luquet, C., Pellerano, G., Rosa, G. Salinity-induced changes in the fine structure of the gills of the semiterrestrial estuarian crab, Uca uruguayensis (Nobili, 1901) (Decapoda, Ocypodidae). TISSUE CELL. 1997;29(4):495-501.http://dx.doi.org/10.1016/S0040-8166(97)80035-3
