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Structural and ultrastructural aspects of folliculogenesis in Didelphis albiventris, the South-American opossum / Aspectos estructurales y ultraestructurales de la foliculogénesis de Didelphis albiventris, la zarigüeña sudamericana
Cesario, Maria Dalva; Matheus, Selma M. Michelin.
  • Cesario, Maria Dalva; UNESP. Campus de Botucatu. Instituto de Biociências. Departamento de Morfologia. BR
  • Matheus, Selma M. Michelin; UNESP. Campus de Botucatu. Instituto de Biociências. Departamento de Anatomia. BR
Int. j. morphol ; 26(1): 113-120, 2008. ilus
Article in English | LILACS | ID: lil-558583
ABSTRACT
The ovarian histology, the structural and the ultrastructural characteristics of the folliculogenesis in Didelphis albiventris were described in detail. Recent studies suggest that methatherian mammals have unusual reproductive cycle but there are few informations regarding the marsupials reproductive life. Despite of the opossum folliculogenesis pattern resembles methatherian and eutherian pattern in many aspects, the analysis shows some peculiar features of the oocyte structure and ultrastructure that make available new data on the reproductive biology of marsupials.
RESUMEN
Fueron descritas con detalles la histología ovárica, las características estructurales y ultra-estructurales de la foliculogénesis del Didelphys albiventris. Estudios recientes sugieren que mamíferos metaterios tienen un ciclo reproductivo inusual, pero existen pocas informaciones en relación a la vida reproductiva de los marsupiales. A pesar de que el modelo de foliculogénesis de la zarigüeya se parece al modelo metaterio y euterio en muchos aspectos, el análisis muestra algunos rasgos peculiares de las estructura y ultra-estructura del oocito, que colocan a disposición nuevos datos en la biología reproductiva de los marsupiales.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Oocytes / Opossums / Ovarian Follicle Type of study: Prognostic study Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: UNESP/BR

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Full text: Available Index: LILACS (Americas) Main subject: Oocytes / Opossums / Ovarian Follicle Type of study: Prognostic study Limits: Animals Language: English Journal: Int. j. morphol Journal subject: Anatomy Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: UNESP/BR