Accessory Nuclei in the Oocytes of Pachycondyla (Neoponera) villosa (Hymenoptera: Ponerinae) as a Source of Annulate Lamellae

Registro completo de metadados
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorCamargo Mathias, Maria Izabel-
Autor(es): dc.creatorCaetano, Flávio Henrique-
Autor(es): dc.creatorDenardi, Sandra Eloisi-
Data de aceite:
Data de disponibilização:
Data de envio:
Data de envio:
Data de envio:
Fonte completa do material: dc.identifier
Fonte: dc.identifier.uri
Descrição: dc.descriptionIn insects' oocytes, structures called accessory nuclei can be observed. They are similar to the nucleus of the oocyte and have been detected in Hymenoptera as well as in other groups, with their source and functions still under discussion (Cassidy & King 1972). Through the use of histochemical techniques as well as ultrastructural ones, it was possible to observe several accessory nuclei surrounding the oocyte nucleus in the immature oocytes of Pachycondyla (Neoponera) villosa ants. Morphologically they were seen to be round and smaller than the germinal vesicle. When using these histochemical techniques, the only positive reaction was for proteins. Ultrastructurally they have the same morphology as the oocyte nucleus and a fine and electrondense granulation was observed inside them. The function of accessory nuclei in P (Neoponera) villosa is probably as a source of anullate lamellae and as an RNA reservoir in the oocytes. In mature oocytes (stage III), these structures are not observed, suggesting that they disappeared before this stage by releasing their contents into the oocytes' cytoplasm, according to Camargo-Mathias and Caetano (1993).-
Formato: dc.format589-598-
Idioma: dc.languageen-
Publicador: dc.publisherCalifornia State University-
Relação: dc.relationSociobiology-
Relação: dc.relation0.604-
Relação: dc.relation0,396-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectannulate lamellae-
Palavras-chave: dc.subjectP. (Neoponera) villosa-
Palavras-chave: dc.subjectants-
Palavras-chave: dc.subjectaccessory nuclei-
Título: dc.titleAccessory Nuclei in the Oocytes of Pachycondyla (Neoponera) villosa (Hymenoptera: Ponerinae) as a Source of Annulate Lamellae-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.