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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
23/06/2017 |
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Data da última atualização: |
29/06/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SOARES, D. J.; DATOVO, C. de O. |
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Afiliação: |
DARTANHA JOSE SOARES, CNPA; C. de O. DATOVO, Bolsista PIBIC/CNPq - PUCCAMP. |
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Título: |
Baseline sensitivity of Amphobotrys ricini to fluazinam and thiophanate-methyl. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MICOLOGIA, 8., 2016, Florianópolis. Anais... Florianópolis: Sociedade Brasileira de Micologia (SBMy), 2016. |
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Páginas: |
p. 234. |
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Idioma: |
Inglês |
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Conteúdo: |
Amphobotrys ricini is the causal agent of castor gray mold, one of the most destructive diseases of castor crops. Fungicides are frequently used to manage plant diseases, however no information on the baseline sensitivity of A. ricini to fungicides is available. The aim of the present work was to determine the baseline sensitivity of A. ricini to the fungicides fluazinam and thiophanate-methyl based on 47 isolates from Goias (n=3), Maranhão (n=1), Mato Grosso (n=12), Paraíba (n=3), Rio Grande do Sul (n=18) and São Paulo states (n=10). Mycelial disc (6 mm) removed from 4-day-old colonies were transferred to Petri dishes containing Potato-Dextrose-Agar (PDA) amended with the fungicides in different concentrations. The Petri dishes were then maintained in the dark for 4 days at 25 ± 1 ºC. The evaluation consisted of two perpendicular measurements of the radial fungus growth, which were used to calculate the percentage of mycelial growth inhibition for each treatment (isolate×fungicide×concentration) related to the control. The data of the percentage of mycelial growth inhibition were used to obtain the effective concentration to inhibit 50 % of the fungus mycelial growth (EC50) by means of linear regression. The mean EC50 for fluazinam was 0.1654 ± 0.0879 ?g mL-1 and for thiophanatemethyl 0.3591 ± 0.0903 ?g mL-1. Based on the mean EC50 obtained in the present work, it was possible to conclude that both fungicides have high intrinsic toxicity to A. ricini and they could be an alternative to manage the disease once their efficiency have been corroborated under field condition. MenosAmphobotrys ricini is the causal agent of castor gray mold, one of the most destructive diseases of castor crops. Fungicides are frequently used to manage plant diseases, however no information on the baseline sensitivity of A. ricini to fungicides is available. The aim of the present work was to determine the baseline sensitivity of A. ricini to the fungicides fluazinam and thiophanate-methyl based on 47 isolates from Goias (n=3), Maranhão (n=1), Mato Grosso (n=12), Paraíba (n=3), Rio Grande do Sul (n=18) and São Paulo states (n=10). Mycelial disc (6 mm) removed from 4-day-old colonies were transferred to Petri dishes containing Potato-Dextrose-Agar (PDA) amended with the fungicides in different concentrations. The Petri dishes were then maintained in the dark for 4 days at 25 ± 1 ºC. The evaluation consisted of two perpendicular measurements of the radial fungus growth, which were used to calculate the percentage of mycelial growth inhibition for each treatment (isolate×fungicide×concentration) related to the control. The data of the percentage of mycelial growth inhibition were used to obtain the effective concentration to inhibit 50 % of the fungus mycelial growth (EC50) by means of linear regression. The mean EC50 for fluazinam was 0.1654 ± 0.0879 ?g mL-1 and for thiophanatemethyl 0.3591 ± 0.0903 ?g mL-1. Based on the mean EC50 obtained in the present work, it was possible to conclude that both fungicides have high intrinsic toxicity to A. ricini and they could be an al... Mostrar Tudo |
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Thesaurus Nal: |
Thiophanate-methyl. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://www.alice.cnptia.embrapa.br/alice/bitstream/doc/1071453/1/2016RA089.pdf
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Marc: |
LEADER 02140nam a2200145 a 4500
001 2071453
005 2017-06-29
008 2016 bl uuuu u00u1 u #d
100 1 $aSOARES, D. J.
245 $aBaseline sensitivity of Amphobotrys ricini to fluazinam and thiophanate-methyl.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE MICOLOGIA, 8., 2016, Florianópolis. Anais... Florianópolis: Sociedade Brasileira de Micologia (SBMy)$c2016
300 $ap. 234.
520 $aAmphobotrys ricini is the causal agent of castor gray mold, one of the most destructive diseases of castor crops. Fungicides are frequently used to manage plant diseases, however no information on the baseline sensitivity of A. ricini to fungicides is available. The aim of the present work was to determine the baseline sensitivity of A. ricini to the fungicides fluazinam and thiophanate-methyl based on 47 isolates from Goias (n=3), Maranhão (n=1), Mato Grosso (n=12), Paraíba (n=3), Rio Grande do Sul (n=18) and São Paulo states (n=10). Mycelial disc (6 mm) removed from 4-day-old colonies were transferred to Petri dishes containing Potato-Dextrose-Agar (PDA) amended with the fungicides in different concentrations. The Petri dishes were then maintained in the dark for 4 days at 25 ± 1 ºC. The evaluation consisted of two perpendicular measurements of the radial fungus growth, which were used to calculate the percentage of mycelial growth inhibition for each treatment (isolate×fungicide×concentration) related to the control. The data of the percentage of mycelial growth inhibition were used to obtain the effective concentration to inhibit 50 % of the fungus mycelial growth (EC50) by means of linear regression. The mean EC50 for fluazinam was 0.1654 ± 0.0879 ?g mL-1 and for thiophanatemethyl 0.3591 ± 0.0903 ?g mL-1. Based on the mean EC50 obtained in the present work, it was possible to conclude that both fungicides have high intrinsic toxicity to A. ricini and they could be an alternative to manage the disease once their efficiency have been corroborated under field condition.
650 $aThiophanate-methyl
700 1 $aDATOVO, C. de O.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 3 | |
| 1. |  | SILVA, A. L.; MARCONDES, M. I.; CAMPOS, M. M.; SILVA, T. E.; TRECE, A. S.; SANTOS, J. S. A. A.; MORAES, S. G. S.; RODRIGUES, J. P. P. Dry matter intake in crossbred dairy calves. Journal of Dairy Science, v. 96, p. 398, 2013. Suppl. 1. Edição dos abstracts do ASAS Joint Annual Meeting, 2013, Indianápolis. | Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 2. | | ROTTA, P. P.; VALADARES FILHO, S. C.; SANTOS, T. R.; COSTA E SILVA, L. F.; MARCONDES, M. I.; CARVALHO, B. C. de; LOBO, A. A. G.; SOUZA, J. V. F.; NOVAES, M. A. S.; FERREIRA, M. F. L; SANTOS, J. S. A. A. Effects of stage of gestation and diet on maternal fat deposition. Journal of Dairy Science, v. 96, p. 22, 2013. Suppl. 1. Edição dos abstracts do ASAS Joint Annual Meeting, 2013, Indianápolis. | Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 3. | | GIONBELLI, T. R. S.; ROTTA, P. P.; VELOSO, C. M.; VALADARES FILHO, S. C.; CARVALHO, B. C. de; MARCONDES, M. I.; FERREIRA, M. F. L.; SOUZA, J. V. F.; SANTOS, J. S. A. A.; LACERDA, L. C.; DUARTE, M. S.; GIONBELLI, M. P. Intestinal development of bovine foetuses during gestation is affected by foetal sex and maternal nutrition. Journal of Animal Physiology and Animal Nutrition, v. 101, n. 3, p. 493-501, 2017. Publicado online em 16 ago. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 3 | |
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