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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
02/10/2012 |
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Data da última atualização: |
25/02/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DOMINGUES, L. N.; BRASIL, B. dos S. A. F.; BELLO, A. C. P. de P.; CUNHA, A. P. da; BARROS, A. T. M. de; LEITE, R. C.; SILAGHI, C.; PFISTER, K.; PASSOS, L. M. F. |
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Afiliação: |
LUÍSA NOGUEIRA DOMINGUES, UFMG; BRUNO DOS SANTOS ALVES FIGUEIREDO BRASIL, UFMG; ANA CRISTINA PASSOS DE PAIVA BELLO, UFMG; ARILDO PINTO DA CUNHA, UFMG; ANTONIO THADEU MEDEIROS DE BARROS, CPAP; ROMÁRIO CERQUEIRA LEITE, UFMG; CORNELIA SILAGHI, UNIVERSITAT MUNCHEN; KURT PFISTER, UNIVERSITAT MUNCHEN; LYGIA MARIA FRICHE PASSOS, UFMG - UNIVERSITAT MUNCHEN. |
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Título: |
Survey of pyrethroid and organophosphate resistance in Brazilian field populations of Rhipicephalus (Boophilus) microplus: Detection of C190A mutation in domain II of the para-type sodium channel gene. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Veterinary Parasitology, v. 189, n.2-4, p. 327-332, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
The cattle tick Rhipicephalus (Boophilus) microplus causes expressive damage to livestock in Brazil and other countries. Its control is becoming more difficult due to the development of resistance in populations. Early detection of resistance can help in developing effective control strategies. This study evaluated the susceptibility of R. microplus to cypermethrin and chlorpyriphos and was the first attempt to identify the mechanism of resistance (target site insensitivity) in cattle tick populations from Minas Gerais state (Southeastern Brazil). Engorged female ticks were collected from 10 ranches within the state of Minas Gerais, and susceptibility was evaluated with the larval packet test (LPT) using technical grade cypermethrin and chlorpyriphos. It was possible to analyze LPT results of seven populations. Target site insensitivity was investigated in all 10 isolates by using molecular approaches for detection of the T2134A substitution within the domain III S6 segment and the C190A in the domain II S4-5 linker from the para-type sodium channel gene. LPT showed that all seven populations were resistant to cypermethrin with resistance ratio (RR) ranging from 16.0 to 25.0 and 85.7% were resistant to chlorpyriphos (RR = 2.2?15.6). Although the T2134A mutation was not detected, the C190A mutation was highly prevalent, being present in 82?100% of the alleles sampled in field populations. A significant correlation was found between the LC50 values for cypermethrin and the frequency of the C190A mutation suggesting that it might be responsible for the phenotypic resistance detected. MenosThe cattle tick Rhipicephalus (Boophilus) microplus causes expressive damage to livestock in Brazil and other countries. Its control is becoming more difficult due to the development of resistance in populations. Early detection of resistance can help in developing effective control strategies. This study evaluated the susceptibility of R. microplus to cypermethrin and chlorpyriphos and was the first attempt to identify the mechanism of resistance (target site insensitivity) in cattle tick populations from Minas Gerais state (Southeastern Brazil). Engorged female ticks were collected from 10 ranches within the state of Minas Gerais, and susceptibility was evaluated with the larval packet test (LPT) using technical grade cypermethrin and chlorpyriphos. It was possible to analyze LPT results of seven populations. Target site insensitivity was investigated in all 10 isolates by using molecular approaches for detection of the T2134A substitution within the domain III S6 segment and the C190A in the domain II S4-5 linker from the para-type sodium channel gene. LPT showed that all seven populations were resistant to cypermethrin with resistance ratio (RR) ranging from 16.0 to 25.0 and 85.7% were resistant to chlorpyriphos (RR = 2.2?15.6). Although the T2134A mutation was not detected, the C190A mutation was highly prevalent, being present in 82?100% of the alleles sampled in field populations. A significant correlation was found between the LC50 values for cypermethrin and the fre... Mostrar Tudo |
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Palavras-Chave: |
Allele-specific PCR; Cattle tick; Chlorpyriphos; Larval packet test; Target site insensitivity. |
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Thesaurus Nal: |
cypermethrin. |
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Categoria do assunto: |
O Insetos e Entomologia |
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Marc: |
LEADER 02556naa a2200289 a 4500
001 1935239
005 2013-02-25
008 2012 bl --- 0-- u #d
100 1 $aDOMINGUES, L. N.
245 $aSurvey of pyrethroid and organophosphate resistance in Brazilian field populations of Rhipicephalus (Boophilus) microplus$bDetection of C190A mutation in domain II of the para-type sodium channel gene.
260 $c2012
520 $aThe cattle tick Rhipicephalus (Boophilus) microplus causes expressive damage to livestock in Brazil and other countries. Its control is becoming more difficult due to the development of resistance in populations. Early detection of resistance can help in developing effective control strategies. This study evaluated the susceptibility of R. microplus to cypermethrin and chlorpyriphos and was the first attempt to identify the mechanism of resistance (target site insensitivity) in cattle tick populations from Minas Gerais state (Southeastern Brazil). Engorged female ticks were collected from 10 ranches within the state of Minas Gerais, and susceptibility was evaluated with the larval packet test (LPT) using technical grade cypermethrin and chlorpyriphos. It was possible to analyze LPT results of seven populations. Target site insensitivity was investigated in all 10 isolates by using molecular approaches for detection of the T2134A substitution within the domain III S6 segment and the C190A in the domain II S4-5 linker from the para-type sodium channel gene. LPT showed that all seven populations were resistant to cypermethrin with resistance ratio (RR) ranging from 16.0 to 25.0 and 85.7% were resistant to chlorpyriphos (RR = 2.2?15.6). Although the T2134A mutation was not detected, the C190A mutation was highly prevalent, being present in 82?100% of the alleles sampled in field populations. A significant correlation was found between the LC50 values for cypermethrin and the frequency of the C190A mutation suggesting that it might be responsible for the phenotypic resistance detected.
650 $acypermethrin
653 $aAllele-specific PCR
653 $aCattle tick
653 $aChlorpyriphos
653 $aLarval packet test
653 $aTarget site insensitivity
700 1 $aBRASIL, B. dos S. A. F.
700 1 $aBELLO, A. C. P. de P.
700 1 $aCUNHA, A. P. da
700 1 $aBARROS, A. T. M. de
700 1 $aLEITE, R. C.
700 1 $aSILAGHI, C.
700 1 $aPFISTER, K.
700 1 $aPASSOS, L. M. F.
773 $tVeterinary Parasitology$gv. 189, n.2-4, p. 327-332, 2012.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Florestas; Embrapa Pantanal; Embrapa Unidades Centrais. |
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Data corrente: |
17/04/2018 |
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Data da última atualização: |
10/10/2018 |
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Tipo da produção científica: |
Autoria/Organização/Edição de Livros |
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Autoria: |
VILELA, G. F.; BENTES, M. P. de M.; OLIVEIRA, Y. M. M. de; MARQUES, D. K. S.; SILVA, J. C. B. (ed.). |
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Afiliação: |
GISELE FREITAS VILELA, CNPM; MICHELLINY PINHEIRO DE MATOS BENTES, CPATU; YEDA MARIA MALHEIROS DE OLIVEIRA, CNPF; DEBORA KARLA SILVESTRE MARQUES, CPAP; JULIANA CORREA BORGES SILVA, CPAP. |
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Título: |
Vida terrestre: contribuições da Embrapa. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Brasília, DF: Embrapa, 2018. |
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Série: |
(Objetivos de Desenvolvimento Sustentável, 15). |
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ISBN: |
978-85-7035-795-3 |
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Idioma: |
Português |
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Notas: |
E-book. |
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Conteúdo: |
Este volume apresenta as contribuições da Empresa Brasileira de Pesquisa Agropecuária (Embrapa) ao Objetivo de Desenvolvimento Sustentável (ODS) 15, cujo tema é Vida Terrestre: Proteger, recuperar e promover o uso sustentável dos ecossistemas terrestres, gerir de forma sustentável as florestas, combater a desertificação, deter e reverter a degradação da terra e deter a perda de biodiversidade. |
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Palavras-Chave: |
Agricultura de montanha. |
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Thesagro: |
Biossegurança; Conservação; Controle biológico; Desenvolvimento sustentável; Desmatamento; Ecossistema; Políticas Públicas; Recuperação do Solo. |
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Categoria do assunto: |
--
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183494/1/ODS-15.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/176242/1/15-Vida-terrestre-contribui-es-da-embrapa-gisele-frei.epub
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Marc: |
LEADER 01281nam a2200301 a 4500
001 2090912
005 2018-10-10
008 2018 bl uuuu 00u1 u #d
020 $a978-85-7035-795-3
100 1 $aVILELA, G. F.
245 $aVida terrestre$bcontribuições da Embrapa.$h[electronic resource]
260 $aBrasília, DF: Embrapa$c2018
490 $a(Objetivos de Desenvolvimento Sustentável, 15).
500 $aE-book.
520 $aEste volume apresenta as contribuições da Empresa Brasileira de Pesquisa Agropecuária (Embrapa) ao Objetivo de Desenvolvimento Sustentável (ODS) 15, cujo tema é Vida Terrestre: Proteger, recuperar e promover o uso sustentável dos ecossistemas terrestres, gerir de forma sustentável as florestas, combater a desertificação, deter e reverter a degradação da terra e deter a perda de biodiversidade.
650 $aBiossegurança
650 $aConservação
650 $aControle biológico
650 $aDesenvolvimento sustentável
650 $aDesmatamento
650 $aEcossistema
650 $aPolíticas Públicas
650 $aRecuperação do Solo
653 $aAgricultura de montanha
700 1 $aBENTES, M. P. de M.
700 1 $aOLIVEIRA, Y. M. M. de
700 1 $aMARQUES, D. K. S.
700 1 $aSILVA, J. C. B.
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Embrapa Amazônia Oriental (CPATU) |
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