Ultrastructural study of the follicular epithelium in oocytes of Pachycondyla (Neoponera) villosa ants (Hymenoptera: Ponerinae)

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorIzabel, Maria-
Autor(es): dc.creatorMathias, Camargo-
Autor(es): dc.creatorCaetano, Flávio Henrique-
Data de aceite: dc.date.accessioned2025-08-21T21:54:54Z-
Data de disponibilização: dc.date.available2025-08-21T21:54:54Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued1998-01-01-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/224483-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/224483-
Descrição: dc.descriptionInsect oocytes are surrounded by the follicular epithelium which is simple and cuboidal, with the mainly functions of: synthesis of vitellin membrane and chorion and synthesis and transport of hemolymph products (proteins). In Pachycondyla (Neoponera) villosa ants workers aged less than 10 days do not present the formation of ovarian follicles (oocytes, nurse cells and follicular cells) indicating that vitellogenesis starts at approximately 10 days of age. Studies of participation of the follicular epithelium in Pachycondyla (Neoponera) villosa showed that in stage I oocytes the epithelium does not present the opening of intercellular spaces. In stage II these spaces begin to be observed together with separation of the follicular epithelium from the oocyte surface. In stage III two types of material were observed in the intercellular spaces: electrodense material in the basal region and compacted material in apical one as well as follicular epithelium/oocytes interface suggesting that the extraovarian material that reach oocytes undergoes some type of modification during passage through the intercellular spaces. The follicular epithelium spaces in queen are bigger than in workers oocytes.-
Descrição: dc.descriptionInst. de Biociências - UNESP Departamento de Biologia Centro de Estudos de Insetos, Ave. 24-A, 1515 - Caixa Postal 199, 13506-900 Rio Claro - SP-
Descrição: dc.descriptionInst. de Biociências - UNESP Departamento de Biologia Centro de Estudos de Insetos, Ave. 24-A, 1515 - Caixa Postal 199, 13506-900 Rio Claro - SP-
Formato: dc.format53-60-
Idioma: dc.languageen-
Relação: dc.relationBiocell-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAnts-
Palavras-chave: dc.subjectFollicular epithelium-
Palavras-chave: dc.subjectOvaries-
Palavras-chave: dc.subjectPonerinae-
Título: dc.titleUltrastructural study of the follicular epithelium in oocytes of Pachycondyla (Neoponera) villosa ants (Hymenoptera: Ponerinae)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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