Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10493-017-0144-8 http://hdl.handle.net/11449/169816 |
Resumo: | The cosmopolitan species Rhipicephalus sanguineus s.l. is one of the most widely distributed ticks all over the world. These ectoparasites are vectors of several pathogens and cause significant direct damage to their hosts. The biological success of these ectoparasites has been attributed to their ovaries and salivary glands, organs that ensure their survival in various environmental conditions. The importance of the ovaries in ticks is that, after mating, the individuals are able to lay approximately three thousand eggs. The present study had the objective to demonstrate the effects of deltamethrin obtained from the product Butox P CE 25® (MSD Saúde Animal, São Paulo, Brazil) on the ovarian development of R. sanguineus s.l. females. The chemical was tested in the concentrations of 25, 50, 100 and 200 ppm (respectively 80, 40, 20 and 10 times lower than the recommended by the manufacturer). Through the application of histological techniques and HE staining, the results showed that the deltamethrin was potentially able to modify the morphophysiology of the oocytes in all developmental stages, interfering in the vitellogenesis, causing intense vacuolation, cytoplasmic disorganization, and alterations in the chorion secretion. In addition, the chemical affected the germ vesicle of some oocytes, causing damages and hypertrophy, fragmenting the chromatin and forming bodies strongly stained by hematoxylin. Therefore, this study confirmed that the deltamethrin had an important action on the reproductive system of the R. sanguineus s.l. females, causing the precocious structural disorganization of the germ cells, consequently preventing the generation of new individuals. |
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Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticksHistologyMorphophysiologyReproductive systemVitellogenesisThe cosmopolitan species Rhipicephalus sanguineus s.l. is one of the most widely distributed ticks all over the world. These ectoparasites are vectors of several pathogens and cause significant direct damage to their hosts. The biological success of these ectoparasites has been attributed to their ovaries and salivary glands, organs that ensure their survival in various environmental conditions. The importance of the ovaries in ticks is that, after mating, the individuals are able to lay approximately three thousand eggs. The present study had the objective to demonstrate the effects of deltamethrin obtained from the product Butox P CE 25® (MSD Saúde Animal, São Paulo, Brazil) on the ovarian development of R. sanguineus s.l. females. The chemical was tested in the concentrations of 25, 50, 100 and 200 ppm (respectively 80, 40, 20 and 10 times lower than the recommended by the manufacturer). Through the application of histological techniques and HE staining, the results showed that the deltamethrin was potentially able to modify the morphophysiology of the oocytes in all developmental stages, interfering in the vitellogenesis, causing intense vacuolation, cytoplasmic disorganization, and alterations in the chorion secretion. In addition, the chemical affected the germ vesicle of some oocytes, causing damages and hypertrophy, fragmenting the chromatin and forming bodies strongly stained by hematoxylin. Therefore, this study confirmed that the deltamethrin had an important action on the reproductive system of the R. sanguineus s.l. females, causing the precocious structural disorganization of the germ cells, consequently preventing the generation of new individuals.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Biology Bioscience Institute São Paulo State University (Unesp)Department of Biology Bioscience Institute São Paulo State University (Unesp)FAPESP: 2015/10275-2CNPq: 300625/2012-0Universidade Estadual Paulista (Unesp)Camargo-Mathias, Maria Izabel [UNESP]Pereira, Natalia Rubio Claret [UNESP]da Silva Reis, Camila [UNESP]de Almeida, Cristiane Regina [UNESP]dos Santos Mendes, Douglas Rodrigo [UNESP]de Araújo, Giselle Bezerra [UNESP]Postali, Lays [UNESP]Figueroa, Tober [UNESP]Ferreira, Allan Roberto Fernandes [UNESP]Santos, Juan Parente [UNESP]de Oliveira, Patrícia Rosa [UNESP]2018-12-11T16:47:43Z2018-12-11T16:47:43Z2017-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article161-169application/pdfhttp://dx.doi.org/10.1007/s10493-017-0144-8Experimental and Applied Acarology, v. 72, n. 2, p. 161-169, 2017.1572-97020168-8162http://hdl.handle.net/11449/16981610.1007/s10493-017-0144-82-s2.0-850203974012-s2.0-85020397401.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengExperimental and Applied Acarology0,7450,745info:eu-repo/semantics/openAccess2024-01-12T06:29:47Zoai:repositorio.unesp.br:11449/169816Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-12T06:29:47Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks |
title |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks |
spellingShingle |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks Camargo-Mathias, Maria Izabel [UNESP] Histology Morphophysiology Reproductive system Vitellogenesis |
title_short |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks |
title_full |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks |
title_fullStr |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks |
title_full_unstemmed |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks |
title_sort |
Deltamethrin as inductor agent of precocious ovarian degeneration in Rhipicephalus sanguineus s.l. (Acari: Ixodidae) ticks |
author |
Camargo-Mathias, Maria Izabel [UNESP] |
author_facet |
Camargo-Mathias, Maria Izabel [UNESP] Pereira, Natalia Rubio Claret [UNESP] da Silva Reis, Camila [UNESP] de Almeida, Cristiane Regina [UNESP] dos Santos Mendes, Douglas Rodrigo [UNESP] de Araújo, Giselle Bezerra [UNESP] Postali, Lays [UNESP] Figueroa, Tober [UNESP] Ferreira, Allan Roberto Fernandes [UNESP] Santos, Juan Parente [UNESP] de Oliveira, Patrícia Rosa [UNESP] |
author_role |
author |
author2 |
Pereira, Natalia Rubio Claret [UNESP] da Silva Reis, Camila [UNESP] de Almeida, Cristiane Regina [UNESP] dos Santos Mendes, Douglas Rodrigo [UNESP] de Araújo, Giselle Bezerra [UNESP] Postali, Lays [UNESP] Figueroa, Tober [UNESP] Ferreira, Allan Roberto Fernandes [UNESP] Santos, Juan Parente [UNESP] de Oliveira, Patrícia Rosa [UNESP] |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Camargo-Mathias, Maria Izabel [UNESP] Pereira, Natalia Rubio Claret [UNESP] da Silva Reis, Camila [UNESP] de Almeida, Cristiane Regina [UNESP] dos Santos Mendes, Douglas Rodrigo [UNESP] de Araújo, Giselle Bezerra [UNESP] Postali, Lays [UNESP] Figueroa, Tober [UNESP] Ferreira, Allan Roberto Fernandes [UNESP] Santos, Juan Parente [UNESP] de Oliveira, Patrícia Rosa [UNESP] |
dc.subject.por.fl_str_mv |
Histology Morphophysiology Reproductive system Vitellogenesis |
topic |
Histology Morphophysiology Reproductive system Vitellogenesis |
description |
The cosmopolitan species Rhipicephalus sanguineus s.l. is one of the most widely distributed ticks all over the world. These ectoparasites are vectors of several pathogens and cause significant direct damage to their hosts. The biological success of these ectoparasites has been attributed to their ovaries and salivary glands, organs that ensure their survival in various environmental conditions. The importance of the ovaries in ticks is that, after mating, the individuals are able to lay approximately three thousand eggs. The present study had the objective to demonstrate the effects of deltamethrin obtained from the product Butox P CE 25® (MSD Saúde Animal, São Paulo, Brazil) on the ovarian development of R. sanguineus s.l. females. The chemical was tested in the concentrations of 25, 50, 100 and 200 ppm (respectively 80, 40, 20 and 10 times lower than the recommended by the manufacturer). Through the application of histological techniques and HE staining, the results showed that the deltamethrin was potentially able to modify the morphophysiology of the oocytes in all developmental stages, interfering in the vitellogenesis, causing intense vacuolation, cytoplasmic disorganization, and alterations in the chorion secretion. In addition, the chemical affected the germ vesicle of some oocytes, causing damages and hypertrophy, fragmenting the chromatin and forming bodies strongly stained by hematoxylin. Therefore, this study confirmed that the deltamethrin had an important action on the reproductive system of the R. sanguineus s.l. females, causing the precocious structural disorganization of the germ cells, consequently preventing the generation of new individuals. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 2018-12-11T16:47:43Z 2018-12-11T16:47:43Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10493-017-0144-8 Experimental and Applied Acarology, v. 72, n. 2, p. 161-169, 2017. 1572-9702 0168-8162 http://hdl.handle.net/11449/169816 10.1007/s10493-017-0144-8 2-s2.0-85020397401 2-s2.0-85020397401.pdf |
url |
http://dx.doi.org/10.1007/s10493-017-0144-8 http://hdl.handle.net/11449/169816 |
identifier_str_mv |
Experimental and Applied Acarology, v. 72, n. 2, p. 161-169, 2017. 1572-9702 0168-8162 10.1007/s10493-017-0144-8 2-s2.0-85020397401 2-s2.0-85020397401.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Experimental and Applied Acarology 0,745 0,745 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
161-169 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965599135170560 |