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Cohen S, Petcoff G, Freijo RO, Portiansky EL, Barbeito CG, Macchi GJ, Díaz AO. Histochemical Characterization of Oocytes in the Pink Cuskeel (Genypterus blacodes). Zoolog Sci 2015; 32:383-8. [PMID: 26245226 DOI: 10.2108/zs140235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In the present study we histochemically and lectinhistochemically characterized the growing oocytes of the pink cuskeel (Genypterus blacodes). We used histochemical methods for the localization and characterization of glycoconjugates (GCs) and lectin histochemical techniques for the identification of specific sugar residues. We analyzed presence and distribution of GCs in the different structures of the growing follicles (cortical alveoli, globules, yolk granules and zona radiata). During the initial stage of vitellogenesis, the oocytes presented small yolk granules composed of GCs that gradually increased during exogenous vitellogenesis. These GCs contained moderate quantities of α-D-mannose, D-glucose, N-acetylglucosamine and N-acetyl-neuraminic acid. The cortical alveoli contained both neutral and carboxylated GCs, and lectin techniques detected N-acetylgalactosamine, galactose and L-fucose. The zona radiata showed a strong positive reaction to PAS and it reacted weakly with more specific techniques, such as KOH/PA*S and PA/Bh/KOH/PAS. This structure showed GCs with oxidizable vicinal diols, O-acyl sugars and sialic acid residues with different substitution types and presented N-acetylgalactosamine and L-fucose specific residues. The oocytes follicular envelope evidenced neutral and acidic non-sulfated GCs and high concentrations of α-D-mannose, D-glucose, galactose and N-acetylgalactosamine. The intergranular cytoplasmic GCs were mainly rich in α-D-mannose, D-glucose, N-acetylgalactosamine, N-acetylglucosamine and N-acetyl-neuraminic acid. These results enhance the comprehension of the structure and functionality of the pink cuskeel ovarian follicles, and provide a useful tool for the study of this tissue in other teleost species.
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Affiliation(s)
- Stefanía Cohen
- 1 Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, CONICET- Universidad Nacional de Mar del Plata. Funes 3250. (7600) Mar del Plata, Argentina.,2 Consejo Nacional de Investigaciones Científicas y Técnicas (Conicet), Argentina
| | - Gladys Petcoff
- 3 Departamento de Biología. Facultad de Ciencias Exactas y Naturales. Universidad Nacional de Mar del Plata
| | - Roberto O Freijo
- 3 Departamento de Biología. Facultad de Ciencias Exactas y Naturales. Universidad Nacional de Mar del Plata
| | - Enrique L Portiansky
- 2 Consejo Nacional de Investigaciones Científicas y Técnicas (Conicet), Argentina.,4 Departamento de Histología y Embriología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata (UNLP), 60 y 118, (1900) La Plata, Argentina
| | - Claudio G Barbeito
- 2 Consejo Nacional de Investigaciones Científicas y Técnicas (Conicet), Argentina.,5 Instituto de Patología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata (UNLP), 60 y 118, (1900) La Plata, Buenos Aires, Argentina
| | - Gustavo J Macchi
- 1 Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, CONICET- Universidad Nacional de Mar del Plata. Funes 3250. (7600) Mar del Plata, Argentina.,2 Consejo Nacional de Investigaciones Científicas y Técnicas (Conicet), Argentina.,6 Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Paseo Victoria Ocampo 1, Mar del Plata, General Pueyrredón (7600), Buenos Aires, Argentina
| | - Alcira O Díaz
- 1 Instituto de Investigaciones Marinas y Costeras (IIMyC), FCEyN, CONICET- Universidad Nacional de Mar del Plata. Funes 3250. (7600) Mar del Plata, Argentina
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Chiarini-Garcia H, Vieira FO, Godinho HP. Morphofunctional changes of female germinal epithelium to support spermatozoa along the annual reproductive cycle in an inseminating catfish (Trachelyopterus galeatus, Auchenipteridae). J Morphol 2013; 275:65-75. [DOI: 10.1002/jmor.20197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Revised: 06/04/2013] [Accepted: 08/12/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Hélio Chiarini-Garcia
- Departamento de Morfologia, Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais 31270-901 Brasil
| | - Francisco O. Vieira
- Departamento de Morfologia, Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais 31270-901 Brasil
| | - Hugo P. Godinho
- Departamento de Morfologia, Instituto de Ciências Biológicas; Universidade Federal de Minas Gerais; Belo Horizonte Minas Gerais 31270-901 Brasil
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Flamini MA, Barbeito CG, Portiansky EL. A morphological, morphometric and histochemical study of the oviduct in pregnant and non-pregnant females of the plains viscacha (Lagostomus maximus). ACTA ZOOL-STOCKHOLM 2012. [DOI: 10.1111/azo.12018] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mirta A. Flamini
- Department of Histology and Embryology; School of Veterinary Sciences; National University of La Plata; P.O. Box 296 1900 La Plata Argentina
| | - Claudio G. Barbeito
- Department of Histology and Embryology; School of Veterinary Sciences; National University of La Plata; P.O. Box 296 1900 La Plata Argentina
- Institute of Pathology; School of Veterinary Sciences; National University of La Plata; P.O. Box 296 1900 La Plata Argentina
| | - Enrique L. Portiansky
- Institute of Pathology; School of Veterinary Sciences; National University of La Plata; P.O. Box 296 1900 La Plata Argentina
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