The ultrastructural aspects of vitellogenesis or oocyte secondary growth in Serrasalmus spilopleura (Teleostei, Characiformes, Serrasalminae)

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorGuimaraes, A. C D
dc.creatorQuagio-Grassiotto, I.
dc.date2014-05-27T11:20:27Z
dc.date2016-10-25T18:17:45Z
dc.date2014-05-27T11:20:27Z
dc.date2016-10-25T18:17:45Z
dc.date2002-04-01
dc.date.accessioned2017-04-06T01:02:21Z
dc.date.available2017-04-06T01:02:21Z
dc.identifierJournal of Submicroscopic Cytology and Pathology, v. 34, n. 2, p. 199-206, 2002.
dc.identifier1122-9497
dc.identifierhttp://hdl.handle.net/11449/66868
dc.identifierhttp://acervodigital.unesp.br/handle/11449/66868
dc.identifier2-s2.0-0036527659
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/12117281
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/888382
dc.descriptionOocyte secondary growth in S. spiloleura corresponds to the period in which different vesicular structures are formed, including the cortical alveoli and the yolk granules. The oocytes with cortical alveolus formation show vesicular structures with filamentous content in the cortical cytoplasmic region, which are the cortical alveolus precursors. In these oocytes, electron-dense vesicles of heterogenous content are dispersed in the inner cytoplasmic region and their nuclei are irregular, showing many nucleoli of different sizes. The oocytes in vitellogenesis are filled with many vesicles. The cortical alveolus precursors are in the peripheral region, and electron-dense granules are seen near to the nucleus. These fuse and form yolk granules. The oocytes in vitellogenesis show a very irregular nucleus that has nucleoli of different sizes. In the oocytes in final vitellogenesis, the yolk granules are scattered throughout the cytoplasm, displacing the cortical alveoli toward cell periphery. The nucleus is similar to the other stages.
dc.languageeng
dc.relationJournal of Submicroscopic Cytology and Pathology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectFemale
dc.subjectFish
dc.subjectSerrasalmus spilopleura
dc.subjectVitellogenesis
dc.subjectcell nucleus
dc.subjectcell vacuole
dc.subjectcytoplasm
dc.subjectegg yolk
dc.subjectfemale
dc.subjectnonhuman
dc.subjectoocyte development
dc.subjectteleost
dc.subjectvitellogenesis
dc.subjectanimal
dc.subjectbiosynthesis
dc.subjectBrazil
dc.subjectcytoplasm vesicle
dc.subjectelectron microscopy
dc.subjectfish
dc.subjectgrowth, development and aging
dc.subjectoocyte
dc.subjectphysiology
dc.subjectultrastructure
dc.subjectCharaciformes
dc.subjectSerrasalminae
dc.subjectSerrasalmus
dc.subjectTeleostei
dc.subjectvitellogenin
dc.subjectAnimals
dc.subjectCytoplasmic Vesicles
dc.subjectFishes
dc.subjectMicroscopy, Electron
dc.subjectOocytes
dc.subjectOogenesis
dc.subjectVitellogenins
dc.titleThe ultrastructural aspects of vitellogenesis or oocyte secondary growth in Serrasalmus spilopleura (Teleostei, Characiformes, Serrasalminae)
dc.typeOtro


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