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dc.contributor.CRUESPUNIVERSIDADE DE ESTADUAL DE CAMPINASpt_BR
dc.typeArtigo de periódicopt_BR
dc.titleStructural And Ultrastructural Characterization Of Male Reproductive Tracts And Spermatozoa In Fig Wasps Of The Genus Pegoscapus (hymenoptera, Chalcidoidea).pt_BR
dc.contributor.authorFiorillo, B Spt_BR
dc.contributor.authorLino-Neto, Jpt_BR
dc.contributor.authorBáo, S Npt_BR
unicamp.authorB S Fiorillo, Programa de Pós Graduação em Biologia Celular e Estrutural, Institute of Biology, CP 6109, State University of Campinas-UNICAMP, São Paulo, CEP: 13083-970, Brazil. brunofiorillo@yahoo.com.brpt_BR
unicamp.author.externalJ Lino-Neto,pt
unicamp.author.externalS N Báo,pt
dc.subjectAnimalspt_BR
dc.subjectCell Nucleuspt_BR
dc.subjectFicuspt_BR
dc.subjectGenitalia, Malept_BR
dc.subjectMalept_BR
dc.subjectSeminal Vesiclespt_BR
dc.subjectSpecies Specificitypt_BR
dc.subjectSpermatozoapt_BR
dc.subjectWaspspt_BR
dc.description.abstractThe three Pegoscapus species present the same internal reproductive tract features comprising testes with a single testicular tubule, seminal vesicles, vasa deferentia, accessory glands and an ejaculatory duct. The seminal vesicle shows two morphologically distinct portions although they do not resemble the separate chambers found in other Chalcidoidea. The anterior portion of the seminal vesicle shows a prominent epithelium and stores the mature spermatozoa, while the posterior region is formed by a thicker muscular sheath that participates on ejaculation. The sexual maturation in Pegoscapus is achieved at emergence, when the testicular degeneration occurs. The spermatozoa of Pegoscapus reveal a basic structure similar to that of other Chalcidoidea. In Pegoscapus sp1. and Pegoscapus sp2. they present the same features, whereas Pegoscapus tonduzi comprises some different characteristics. It measures approximately 160 microm in Pegoscapus sp1. and Pegoscapus sp2., while in P. tonduzi the spermatozoa measure about 360 microm. The extracellular sheath thickness is another difference among the species. While Pegoscapus sp1. and Pegoscapus sp2. show a thick extracellular sheath, in P. tonduzi this sheath is very thin resulting in a large space intervening between the extracellular sheath and the nucleus. Despite these differences, the three species analyzed share some characteristics that allow the establishment of an identity to the spermatozoon of the genus Pegoscapus: the seminal vesicle not divided in chambers; the absence of acrosomal structures in the spermatozoa; the length of the extracellular sheath; the central microtubules being the firsts to terminate in the sequence of microtubular cutoff at the final axonemal portion.en
dc.relation.ispartofMicron (oxford, England : 1993)pt_BR
dc.relation.ispartofabbreviationMicronpt_BR
dc.date.issued2008-Decpt_BR
dc.identifier.citationMicron (oxford, England : 1993). v. 39, n. 8, p. 1271-80, 2008-Dec.pt_BR
dc.language.isoengpt_BR
dc.description.volume39pt_BR
dc.description.firstpage1271-80pt_BR
dc.rightsfechadopt_BR
dc.sourcePubMedpt_BR
dc.identifier.issn0968-4328pt_BR
dc.identifier.doi10.1016/j.micron.2008.03.005pt_BR
dc.identifier.urlhttp://www.ncbi.nlm.nih.gov/pubmed/18439835pt_BR
dc.date.available2015-11-27T13:12:46Z-
dc.date.accessioned2015-11-27T13:12:46Z-
dc.description.provenanceMade available in DSpace on 2015-11-27T13:12:46Z (GMT). No. of bitstreams: 1 pmed_18439835.pdf: 2361881 bytes, checksum: 50aa49d011124de1606547bb5930e7f1 (MD5) Previous issue date: 2008en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/197779-
dc.identifier.idPubmed18439835pt_BR
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