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Patterns of nucleolar activity during spermatogenesis of two triatomines, Panstrongylus megistus and P. herreri

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dc.contributor.authorTartarotti, Ester [UNESP]
dc.contributor.authorOliveira, Maria Tercília Vilela de Azeredo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:19:45Z
dc.date.available2014-05-27T11:19:45Z
dc.date.issued1999-07-01
dc.description.abstractThe present work analyzed spermatogenesis in two species of triatomines (genus Panstrongylus) using silver-ion impregnation. The sex chromosomes of P. megistus and P. herreri had nucleolar organizing activity and became strongly impregnated during the phases of meiotic prophase I. Fragmentation of the nucleolus occurred in both species during the meiotic cycle. The nucleolar region could be observed up to diakinesis in meiotic prophase after which only nucleolar bodies and fragments were seen. Postmeiotic reactivation of rRNA synthesis occurred in these two species and was probably related to cell differentiation.en
dc.description.affiliationDepartamento de Biologia Instituto de Biociências IBILCE-UNESP, Rua Cristovão Colombo, no 2265, 15054-000, Sao Jose do Rio Preto-SP
dc.description.affiliationUnespDepartamento de Biologia Instituto de Biociências IBILCE-UNESP, Rua Cristovão Colombo, no 2265, 15054-000, Sao Jose do Rio Preto-SP
dc.format.extent177-184
dc.identifierhttp://dx.doi.org/10.1080/00087114.1998.10589171
dc.identifier.citationCaryologia, v. 52, n. 3-4, p. 177-184, 1999.
dc.identifier.doi10.1080/00087114.1998.10589171
dc.identifier.issn0008-7114
dc.identifier.lattes6045437265946340
dc.identifier.scopus2-s2.0-0040788652
dc.identifier.urihttp://hdl.handle.net/11449/65802
dc.language.isoeng
dc.relation.ispartofCaryologia
dc.relation.ispartofjcr0.608
dc.relation.ispartofsjr0,281
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectNucleolar persistence
dc.subjectNucleolus
dc.subjectPanstrongylus
dc.subjectSpermatogenesis
dc.subjectTriatomines
dc.titlePatterns of nucleolar activity during spermatogenesis of two triatomines, Panstrongylus megistus and P. herrerien
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/permissions/reusingOwnWork.asp
dspace.entity.typePublication
unesp.author.lattes6045437265946340
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt
unesp.departmentBiologia - IBILCEpt

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São José do Rio Preto - IBILCE - Instituto de Biociências, Letras e Ciências Exatas