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

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dc.contributor.authorTartarotti, E.
dc.contributor.authorOliveira, Maria Tercília Vilela de Azeredo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:00:25Z
dc.date.available2014-05-20T14:00:25Z
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.affiliationUNESP, IBILCE, Inst Biociencias Letras & Ciências Exatas, Dept Biol, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.description.affiliationUnespUNESP, IBILCE, Inst Biociencias Letras & Ciências Exatas, Dept Biol, BR-15054000 Sao Jose do Rio Preto, SP, Brazil
dc.format.extent177-184
dc.identifierhttp://www.caryologia.unifi.it/past_volumes/52_3_4/52_3_4abst.html
dc.identifier.citationCaryologia. Florence: Univ Florence Botany Inst, v. 52, n. 3-4, p. 177-184, 1999.
dc.identifier.issn0008-7114
dc.identifier.lattes6045437265946340
dc.identifier.urihttp://hdl.handle.net/11449/21370
dc.identifier.wosWOS:000087136600011
dc.language.isoeng
dc.publisherUniv Florence Botany Inst
dc.relation.ispartofCaryologia
dc.relation.ispartofjcr0.608
dc.relation.ispartofsjr0,281
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectnucleolar persistencept
dc.subjectnucleoluspt
dc.subjectPanstrongyluspt
dc.subjectspermatogenesispt
dc.subjecttriatominespt
dc.titlePatterns of nucleolar activity during spermatogenesis of two triatomines, Panstrongylus megistus and P-herrerien
dc.typeArtigo
dcterms.licensehttp://journalauthors.tandf.co.uk/preparation/copyright.asp
dcterms.rightsHolderUniv Florence Botany Inst
unesp.author.lattes6045437265946340
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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Artigos - Biologia - IBILCE