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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
06/02/2017 |
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Data da última atualização: |
06/12/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ARENA, G. D.; RAMOS-GONZÁLEZ, P. L.; NUNES, M. A A.; RIBEIRO-ALVES, M.; RIBEIRO-ALVES, M.; CAMARGO, L. E. A.; KITAJIMA, E. T W.; MACHADO, M. A.; ASTUA, J. de F. |
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Afiliação: |
GABRIELLA D. ARENA, APTA; PEDRO L. RAMOS-GONZÁLEZ, APTA; MARIA A. NUNES, APTA; MARCELO RIBEIRO-ALVES; MARCELO RIBEIRO-ALVES, FIOCRUZ; LUIS E. A. CAMARGO, ESALQ; ELLIOT W. KITAJIMA, ESALQ; MARCOS A. MACHADO, APTA; JULIANA DE FREITAS ASTUA, CNPMF. |
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Título: |
Citrus leprosis virus C Infection Results in Hypersensitive-Like Response, Suppression of the JA/ET Plant Defense Pathway and Promotion of the Colonization of Its Mite Vector. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Frontiers in Plant Science November 2016. |
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ISSN: |
1664-462X |
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DOI: |
10.3389/fpls.2016.01757 |
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Idioma: |
Inglês |
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Conteúdo: |
Leprosis is a serious disease of citrus caused by Citrus leprosis virus C (CiLV-C, genus Cilevirus) whose transmission is mediated by false spider mites of the genus Brevipalpus. CiLV-C infection does not systemically spread in any of its known host plants, thus remaining restricted to local lesions around the feeding sites of viruliferous mites. To get insight into this unusual pathosystem, we evaluated the expression profiles of genes involved in defense mechanisms of Arabidopsis thaliana and Citrus sinensis upon infestation with non-viruliferous and viruliferous mites by using reverse-transcription qPCR. These results were analyzed together with the production of reactive oxygen species (ROS) and the appearance of dead cells as assessed by histochemical assays. After interaction with non-viruliferous mites, plants locally accumulated ROS and triggered the salicylic acid (SA) and jasmonate/ethylene (JA/ET) pathways. ERF branch of the JA/ET pathways was highly activated. In contrast, JA pathway genes were markedly suppressed upon the CiLV-C infection mediated by viruliferous mites. Viral infection also intensified the ROS burst and cell death, and enhanced the expression of genes involved in the RNA silencing mechanism and SA pathway. After 13 days of infestation of two sets of Arabidopsis plants with non-viruliferous and viruliferous mites, the number of mites in the CiLV-C infected Arabidopsis plants was significantly higher than in those infested with the non-viruliferous ones. Oviposition of the viruliferous mites occurred preferentially in the CiLV-C infected leaves. Based on these results, we postulated the first model of plant/Brevipalpus mite/cilevirus interaction in which cells surrounding the feeding sites of viruliferous mites typify the outcome of a hypersensitive-like response, whereas viral infection induces changes in the behavior of its vector. MenosLeprosis is a serious disease of citrus caused by Citrus leprosis virus C (CiLV-C, genus Cilevirus) whose transmission is mediated by false spider mites of the genus Brevipalpus. CiLV-C infection does not systemically spread in any of its known host plants, thus remaining restricted to local lesions around the feeding sites of viruliferous mites. To get insight into this unusual pathosystem, we evaluated the expression profiles of genes involved in defense mechanisms of Arabidopsis thaliana and Citrus sinensis upon infestation with non-viruliferous and viruliferous mites by using reverse-transcription qPCR. These results were analyzed together with the production of reactive oxygen species (ROS) and the appearance of dead cells as assessed by histochemical assays. After interaction with non-viruliferous mites, plants locally accumulated ROS and triggered the salicylic acid (SA) and jasmonate/ethylene (JA/ET) pathways. ERF branch of the JA/ET pathways was highly activated. In contrast, JA pathway genes were markedly suppressed upon the CiLV-C infection mediated by viruliferous mites. Viral infection also intensified the ROS burst and cell death, and enhanced the expression of genes involved in the RNA silencing mechanism and SA pathway. After 13 days of infestation of two sets of Arabidopsis plants with non-viruliferous and viruliferous mites, the number of mites in the CiLV-C infected Arabidopsis plants was significantly higher than in those infested with the non-viruliferou... Mostrar Tudo |
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| 3. |  | KARAM, D.; RIOS, J. N. G.; FERNANDES, R. C. Agrotóxicos. Sete Lagoas: Embrapa Milho e Sorgo; Belo Horizonte: Secretaria de Estado de Agricultura, Pecuária e Abastecimento de Minas Gerais, 2014.| Tipo: Folder/Folheto/Cartilha |
| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 4. | | FERNANDES, R. C.; SOSINSKI JUNIOR, E. E.; BARBIERI, R. L. Caracterização de frutos de Butia odorata em área de conservação in situ no municipio de Tapes (RS). In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 27.; ENCONTRO DE PÓS-GRADUAÇÃO UFPEL, 20.; SEMANA INTEGRADA DE ENSINO, PESQUISA E EXTENSÃO, 4., 2018, Pelotas. Anais... Pelotas: UFPel, 2018.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 15. | | LEAL, M. A. de A.; FERNANDES, R. C.; SANTOS, S. da S. Efeito da adição de rochas silicáticas sobre desempenho orgânico utilizado como substrato para produção de mudas de hortaliças. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa: SBCS, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 18. | | FERNANDES, R. C.; KNEIB, R. B.; DIEZ-RODRÍGUEZ, G. I.; NAVA, D. E.; CASTRO, C. M. Resposta de genótipos de Solanum chacoense ao dano causado por Diabrotica speciosa nas folhas. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 20.; MOSTRA CIENTÍFICA, 3., 2011, Pelotas. [Anais.]. Pelotas: UFPel, 2011. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| Registros recuperados : 32 | |
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