Ultrastructure of spermatogenic cells and spermatozoa in Hoplias malabaricus (teleostei, characiformes, erythrinidae)

Registro completo de metadados
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorQuagio-Grassiotto, I-
Autor(es): dc.creatorNegrao, JNC-
Autor(es): dc.creatorCarvalho, E. D.-
Autor(es): dc.creatorForesti, F.-
Data de aceite: dc.date.accessioned2021-03-10T17:11:41Z-
Data de disponibilização: dc.date.available2021-03-10T17:11:41Z-
Data de envio: dc.date.issued2014-05-20-
Data de envio: dc.date.issued2014-05-20-
Data de envio: dc.date.issued2001-12-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/j.1095-8649.2001.tb00214.x-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/18353-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/18353-
Descrição: dc.descriptionThe differentiation of spermatids in Hoplias malabaricus is characterized by chromatin compaction, flagellum development, nuclear rotation, nuclear fossa formation, and excess cytoplasm elimination. In the resulting spermatozoon, the head is round and the nucleus contains chromatin compacted in thick filaments, peripherically arranged, to a central electron-lucent area. The acrosome is absent. The nuclear fossa is eccentric but not pronounced. The proximal centriole penetrates it and is oblique to the flagellum. The long midpiece has several converging elongate vesicles, forming membranous hoops in the initial segment of the flagellum, but has no cytoplasmic channel. The mitochondria are elongate and branched or C-shaped and located around the initial segment of the axoneme. The lateral flagellum does not show lateral projections. The ultrastructural characteristics of H. malabaricus spermatozoa are similar to the Cypriniformes. (C) 2001 the Fisheries Society of the British Isles.-
Formato: dc.format1494-1502-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationJournal of Fish Biology-
Relação: dc.relation1.702-
Relação: dc.relation0,822-
Direitos: dc.rightsclosedAccess-
Palavras-chave: dc.subjectfish-
Palavras-chave: dc.subjectspermatid-
Palavras-chave: dc.subjectsperm-
Palavras-chave: dc.subjectstructure-
Título: dc.titleUltrastructure of spermatogenic cells and spermatozoa in Hoplias malabaricus (teleostei, characiformes, erythrinidae)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.