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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleTesticular interstitial cells, and steroidogenic detection in the protogynous fish, Synbranchus marmoratus (Teleostei, Synbranchidae)pt_BR
dc.contributor.authorLo Nostro, FLpt_BR
dc.contributor.authorAntoneli, FNpt_BR
dc.contributor.authorQuagio-Grassiotto, Ipt_BR
dc.contributor.authorGuerrero, GApt_BR
unicamp.author.emailfabi@bg.fcen.uba.arpt_BR
unicamp.authorUBA, FCEN, Dept Biodiversidad & Biol Expt, Lab Embriol Anim, Buenos Aires, DF, Argentina UNICAMP, Inst Biol, Dept Biol Celular, BR-13083970 Campinas, SP, Brazil Univ Estadual Paulista Julio Mesquita Filho, Inst Biociencias, Dept Morphol, BR-18618000 Botucatu, SP, Brazilpt_BR
dc.subjectsynbranchiformespt_BR
dc.subjectsex reversalpt_BR
dc.subjectprotogynouspt_BR
dc.subjectinterstitial compartmentpt_BR
dc.subjectLeydig cellspt_BR
dc.subjectblood cellspt_BR
dc.subject.wosNatural Sex Reversalpt_BR
dc.subject.wosPadogobius-martensipt_BR
dc.subject.wosThalassoma-duperreypt_BR
dc.subject.wosOncorhynchus-mykisspt_BR
dc.subject.wosSalmo-gairdneript_BR
dc.subject.wosPrimary Culturept_BR
dc.subject.wosRainbow-troutpt_BR
dc.subject.wosVas-deferenspt_BR
dc.subject.wosCoris-julispt_BR
dc.subject.wosLeydig Cellpt_BR
dc.description.abstractThe swamp eel, Synbranchus marmoratus, is a freshwater protogynic diandric species. Primary males develop directly as males while secondary males arise from the sex reversal of females. Fishes from Argentine and Brazil inland waters were collected, examined and compared for this study. In order to characterize the interstitial testicular compartment, light and electron microscopy techniques and an enzyme histochemical examination for steroidogenic cells detection were used. The interstitial compartment of S. marmoratus is composed of Leydig and myoid cells, collagen fibers, blood cells, macrophages,and amyelinic nerves. At the ultrastructural level, no differences were observed in the interstitial tissue, either between specimens from the different sampling sites or between primary and secondary males. Leydig cells are present in all testes examined throughout the year. A cytoplasmatic reaction of 3beta-HSD was detected only in Leydig cells during sex reversal and in both type of males, mainly during the regressed and early maturation classes (autumn and winter). Leydig cells possess the typical fine structural characteristics associated with steroidogenesis. Furthermore, in both type of males, during sex reversal and after the spawning period, the number of granulocytes and macrophages present in the testes increased, suggesting that they could be involved in phagocytosis and resorption of damaged cells. (C) 2004 Elsevier Ltd. All rights reserved.pt
dc.relation.ispartofTissue & Cellpt_BR
dc.relation.ispartofabbreviationTissue Cellpt_BR
dc.publisher.cityEdinburghpt_BR
dc.publisher.countryEscóciapt_BR
dc.publisherChurchill Livingstonept_BR
dc.date.issued2004pt_BR
dc.date.monthofcirculationAUGpt_BR
dc.identifier.citationTissue & Cell. Churchill Livingstone, v. 36, n. 4, n. 221, n. 231, 2004.pt_BR
dc.language.isoenpt_BR
dc.description.volume36pt_BR
dc.description.issuenumber4pt_BR
dc.description.firstpage221pt_BR
dc.description.lastpage231pt_BR
dc.rightsfechadopt_BR
dc.sourceWeb of Sciencept_BR
unicamp.cruespUNESPpt_BR
dc.identifier.issn0040-8166pt_BR
dc.identifier.wosidWOS:000223461700001pt_BR
dc.identifier.doi10.1016/j.tice.2004.03.001pt_BR
dc.date.available2014-11-19T19:28:17Z
dc.date.available2015-11-26T17:30:25Z-
dc.date.accessioned2014-11-19T19:28:17Z
dc.date.accessioned2015-11-26T17:30:25Z-
dc.description.provenanceMade available in DSpace on 2014-11-19T19:28:17Z (GMT). No. of bitstreams: 1 WOS000223461700001.pdf: 1205707 bytes, checksum: f952a95bd7d0a4825532c88218b1b173 (MD5) Previous issue date: 2004en
dc.description.provenanceMade available in DSpace on 2015-11-26T17:30:25Z (GMT). No. of bitstreams: 2 WOS000223461700001.pdf: 1205707 bytes, checksum: f952a95bd7d0a4825532c88218b1b173 (MD5) WOS000223461700001.pdf.txt: 43928 bytes, checksum: 95d3a31410d8200a1198f7b7e235e537 (MD5) Previous issue date: 2004en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/78595pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/78595
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/78595-
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