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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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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
12/01/2011 |
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Data da última atualização: |
19/01/2011 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CUNHA, B. A.; NUNES, M. A.; FREITAS-ASTUA, J. de; BERGAMINI, M. P.; BASTIANEL, M.; NOVELLI, V. M. |
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Afiliação: |
Bruna Aparecida da Cunha, APTA; Maria Andréia Nunes, APTA; JULIANA DE FREITAS ASTUA, CNPMF; Marcela P. Bergamini, APTA; Marinês Bastianel, APTA; Valdenice M. Novelli, APTA. |
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Título: |
Different symptomatic tissues as sources of inoculum to citrus leprosis virus c (CILV-C). |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. |
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Idioma: |
Inglês |
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Notas: |
128-PS2
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010 |
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Conteúdo: |
Citrus leprosis virus C (CiLV-C), transmitted by Brevipalpus sp. (Acari: Tenuipalpidae), is the causal agent of citrus leprosis, a disease that causes estimated annual losses of US$ 100 million in Brazilian orchards. Studies showed that the vector has no ability to transmit the virus to their offspring and needs to feed on infected tissue for the CiLV-C acquisition. Furthermore, the virus does not invade the host systemically, remaining inside the localized lesions it induces in infected tissues. These two features significantly increase the importance of the presence of the inoculum in the orchard, and pruning of symptomatic branches have been recommended as a way to reduce the source of inoculum in the field. However, there is no consistent information on the relative importance of different plant tissues or age of lesions as sources of inoculum. In this study, we evaluated the colonization and multiplication of the mites in branches of different diameters, and the efficiency of these branches, as well as leaves with chlorotic or necrotic lesions as sources of CiLV-C inoculum. A clonal population of B. phoenicis was maintained onto the different tissues for 96 h for viral acquisition. Part of the viruliferous mites were transferred to seedlings of Pera sweet orange (Citrus sinensis L. Osbeck), highly susceptible to CiLV-C, while others were submitted to RT-PCR to confirm the presence of the virus. After two weeks, large numbers of eggs and nymphs were observed on the branches, suggesting efficient colonization from the mites. Leprosis symptoms were observed in citrus seedlings infested with mites maintained in leaves and branches as sources of inoculum. Our data suggest that CiLV-C is present in both tissues and different types of lesions, which may play a role as sources of inoculum in the field. MenosCitrus leprosis virus C (CiLV-C), transmitted by Brevipalpus sp. (Acari: Tenuipalpidae), is the causal agent of citrus leprosis, a disease that causes estimated annual losses of US$ 100 million in Brazilian orchards. Studies showed that the vector has no ability to transmit the virus to their offspring and needs to feed on infected tissue for the CiLV-C acquisition. Furthermore, the virus does not invade the host systemically, remaining inside the localized lesions it induces in infected tissues. These two features significantly increase the importance of the presence of the inoculum in the orchard, and pruning of symptomatic branches have been recommended as a way to reduce the source of inoculum in the field. However, there is no consistent information on the relative importance of different plant tissues or age of lesions as sources of inoculum. In this study, we evaluated the colonization and multiplication of the mites in branches of different diameters, and the efficiency of these branches, as well as leaves with chlorotic or necrotic lesions as sources of CiLV-C inoculum. A clonal population of B. phoenicis was maintained onto the different tissues for 96 h for viral acquisition. Part of the viruliferous mites were transferred to seedlings of Pera sweet orange (Citrus sinensis L. Osbeck), highly susceptible to CiLV-C, while others were submitted to RT-PCR to confirm the presence of the virus. After two weeks, large numbers of eggs and nymphs were observed on the branc... Mostrar Tudo |
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Palavras-Chave: |
Brevipalpus sp; Citrus sinensis L. Osbeck; Plant disease. |
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Thesagro: |
Doença de Planta. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02673nam a2200229 a 4500
001 1872747
005 2011-01-19
008 2010 bl uuuu u00u1 u #d
100 1 $aCUNHA, B. A.
245 $aDifferent symptomatic tissues as sources of inoculum to citrus leprosis virus c (CILV-C).
260 $aIn: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM.$c2010
500 $a128-PS2 Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010
520 $aCitrus leprosis virus C (CiLV-C), transmitted by Brevipalpus sp. (Acari: Tenuipalpidae), is the causal agent of citrus leprosis, a disease that causes estimated annual losses of US$ 100 million in Brazilian orchards. Studies showed that the vector has no ability to transmit the virus to their offspring and needs to feed on infected tissue for the CiLV-C acquisition. Furthermore, the virus does not invade the host systemically, remaining inside the localized lesions it induces in infected tissues. These two features significantly increase the importance of the presence of the inoculum in the orchard, and pruning of symptomatic branches have been recommended as a way to reduce the source of inoculum in the field. However, there is no consistent information on the relative importance of different plant tissues or age of lesions as sources of inoculum. In this study, we evaluated the colonization and multiplication of the mites in branches of different diameters, and the efficiency of these branches, as well as leaves with chlorotic or necrotic lesions as sources of CiLV-C inoculum. A clonal population of B. phoenicis was maintained onto the different tissues for 96 h for viral acquisition. Part of the viruliferous mites were transferred to seedlings of Pera sweet orange (Citrus sinensis L. Osbeck), highly susceptible to CiLV-C, while others were submitted to RT-PCR to confirm the presence of the virus. After two weeks, large numbers of eggs and nymphs were observed on the branches, suggesting efficient colonization from the mites. Leprosis symptoms were observed in citrus seedlings infested with mites maintained in leaves and branches as sources of inoculum. Our data suggest that CiLV-C is present in both tissues and different types of lesions, which may play a role as sources of inoculum in the field.
650 $aDoença de Planta
653 $aBrevipalpus sp
653 $aCitrus sinensis L. Osbeck
653 $aPlant disease
700 1 $aNUNES, M. A.
700 1 $aFREITAS-ASTUA, J. de
700 1 $aBERGAMINI, M. P.
700 1 $aBASTIANEL, M.
700 1 $aNOVELLI, V. M.
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Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
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| Registros recuperados : 10 | |
| 1. |  | BASTIANEL, M.; NOVELLI, V. M.; FREITAS-ASTUA, J. de. Field assessments reveal different levels of susceptibility among mandarins and hybrids to Citrus Leprosis Virus c. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 129.PS2
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 2. | | RODRIGUES, A. S.; BARBOSA, C. de J.; SOARES FILHO, W. dos S.; FREITAS-ASTUA, J. de. Citrus rootstock hybrids tolerants to citrus tristeza virus and Bahia bark scaling disease. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 106_PS2
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 3. | | KUBO, K. S.; ARENA, G. D.; KITAJIMA, E. W; MACHADO, M. A.; FREITAS-ASTUA, J. de. Transmission of citrus leprosis virus c (CiLV-C) to Arabidopsis thaliana by Brevipalpus phoenicis mites. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 085 PS1
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 4. | | CUNHA, B. A.; NUNES, M. A.; FREITAS-ASTUA, J. de; BERGAMINI, M. P.; BASTIANEL, M.; NOVELLI, V. M. Different symptomatic tissues as sources of inoculum to citrus leprosis virus c (CILV-C). In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 128-PS2
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 7. | | SILVA, M. F. e; MIROLI, D. M. B. P.; CARDINALI, M. C. B.; MASCARENHAS, Y. P.; MARTINS, P. K.; FREITAS ASTUA, J. de; MACHADO, M. A. Application of fourier transform infrared spectroscopy (FTIR) for early diagnosis of citrus greening disease. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 120_PS2
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 8. | | LOCALI-FABRIS, E. C.; MAFRA, V. S.; MARTINS, P. K.; RIBEIRO- ALVES, M.; FRANCISCO, C. S.; FREITAS ASTUA, J. de; KISHI, L. T.; MACHADO, M. A. Gene set enrichment analysis in sweet orange plants infected by Candidatus Liberibacter americanus. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 0058 PSO
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 9. | | FREITAS ASTUA, J. de; KUBO, K. S.; KITAJIMA, E. W.; BASTIANEL, M.; COSTA, F. M.; NOVELLI, V. M.; MACHADO, M. A. The leprosis pathosystem: interactions between host, virus and vector. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS,18., CAMPINAS, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 009 PSO
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 10. | | CÁCERES, S.; AGUIRRE, A.; COSTA, N.; SEGAÑA, L. G.; FARIÑA, N.; FREITAS ASTUA, J. de; MORAES, G. J.; TASSI, A. D.; KITAJIMA, E. W. Present situation of the citrus leprosis in Argentina and Paraguay. In: CONFERENCE INTERNATIONAL ORGANIZATION CITRUS VIROLOGISTS, 18., Campinas, SP, 2010. Proceedings... Campinas: IOCV, 2010. 1 CD-ROM. 054 PSO.
Publicado também em: Citrus Research & Technology, Cordeirópolis, v. 31, Suplemento, 2010| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 10 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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