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Evaluation of cytotoxic effects of fipronil on ovaries of semi-engorged Rhipicephalus sanguineus (Latreille, 1806) (Acari : Ixodidae) tick female

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dc.contributor.authorde Oliveira, Patricia Rosa [UNESP]
dc.contributor.authorBechara, Gervasio Henrique [UNESP]
dc.contributor.authorCamargo-Mathias, Maria Izabel [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:55:06Z
dc.date.available2014-05-20T13:55:06Z
dc.date.issued2008-07-01
dc.description.abstractThe ovary of the Rhipicephalus sanguineus dog tick female is structurally formed by oocytes in five different stages of development (from I to V) and attached to the gonad by the pedicel. The present study evaluated possible toxic effects of the acaricide fipronil (Frontline (R)) on ovaries of semi-engorged ticks. Sixty partially fed females of R. sanguineus tick were distributed into four groups of 15 specimens each: I - non-treated; II, III and IV - treated with 1, 5 and 10 ppm of fipronil, respectively. The acaricide induced structural changes in the oocytes of individuals of the different treated groups ranging from the presence of a few small vacuoles to cellular death. In conclusion, germinative cells of semi-engorged R. sanguineus tick female are affected by different concentrations of fipronil leading to the reduction of tick fertility. (c) 2008 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUNESP, Dept Biol, IB, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUNESP, FCAV, Dept Patol Vet, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUnespUNESP, Dept Biol, IB, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUNESP, FCAV, Dept Patol Vet, BR-14884900 Jaboticabal, SP, Brazil
dc.format.extent2459-2465
dc.identifierhttp://dx.doi.org/10.1016/j.fct.2008.03.034
dc.identifier.citationFood and Chemical Toxicology. Oxford: Pergamon-Elsevier B.V. Ltd, v. 46, n. 7, p. 2459-2465, 2008.
dc.identifier.doi10.1016/j.fct.2008.03.034
dc.identifier.issn0278-6915
dc.identifier.urihttp://hdl.handle.net/11449/19705
dc.identifier.wosWOS:000257480200024
dc.language.isoeng
dc.publisherPergamon-Elsevier B.V. Ltd
dc.relation.ispartofFood and Chemical Toxicology
dc.relation.ispartofjcr3.977
dc.relation.ispartofsjr1,144
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectRhipicephalus sanguineusen
dc.subjectFipronilen
dc.subjectOvaryen
dc.subjectAcaricideen
dc.subjectCytotoxicityen
dc.subjectReproductionen
dc.titleEvaluation of cytotoxic effects of fipronil on ovaries of semi-engorged Rhipicephalus sanguineus (Latreille, 1806) (Acari : Ixodidae) tick femaleen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderPergamon-Elsevier B.V. Ltd
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Rio Claropt
unesp.departmentPatologia Veterinária - FCAVpt
unesp.departmentBiologia - IBpt

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Rio Claro - IB - Instituto de Biociências
Jaboticabal - FCAV - Faculdade de Ciências Agrárias e Veterinárias