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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
10/12/2020 |
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Data da última atualização: |
10/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GUIMARÃES, R. A.; ZANOTTO, E.; PERRONY, P. E. P.; ZANOTTO, L. A. S.; SILVA, L. J.; MACHADO, J. C.; PINTO, F. A. M. F.; MEDEIROS, H. N.; PINHO, R. G. V.; MELO, I. S.; SILVA, J. C. P.; MEDEIROS, F. C. L.; MEDEIROS, F. H. V. |
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Título: |
Integrating a chemical fungicide and Bacillus subtilis BIOUFLA2 ensures leaf protection and reduces ear rot (Fusarium verticillioides) and fumonisin content in maize. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Phytopathology, Nova Jersey, EUA, p. 1-10, 2020. |
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Idioma: |
Inglês |
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Conteúdo: |
Fungicides in maize production under tropical conditions reduce losses from foliar diseases, but only a few reduce ear rot incidence or mycotoxin contamination in kernels. Biocontrol agents (BCAs) may reduce postharvest losses but their efficacy has not been demonstrated in field conditions. Here, we evaluated the use of bacterial isolates in tandem with fungicides on Fusarium verticillioides incidence and fumonisin content. After an early screening, Bacillus subtilis and Streptomyces araujoniae isolates were used in field trials. Maize plants were sprayed twice: at the end of the vegetative stage (V9) and at the beginning of the reproductive stage (R1). Sprays were made by applying water, B. subtilis strain BIOUFLA2, S. araujoniae strain ASBV-1T, or fungicide (cyproconazole + azoxystrobin) in different combinations, totalling nine treatments. Ten days later, all maize ears were inoculated with F. verticillioides. Plants were assessed for foliar diseases, grain yield, F. verticillioides incidence and fumonisin content in kernels. The treatment with two fungicide sprays reduced most of the foliar diseases but not F. verticillioides incidence in kernels. Twice-sprayed B. subtilis and S. araujoniae reduced F. verticillioides, but did not protect leaves against other pathogens. All treatments encompassing a fungicide followed by one of the BCAs reduced F. verticillioides incidence compared to control. Twice-sprayed fungicide increased fumonisin by 50% compared to water control, while fungicide followed by B. subtilis decreased the fumonisin content by 40%. Replacing the second chemical spray with S. araujoniae did not reduce the fumonisin content but provided a higher yield than a twice-sprayed fungicide. Exclusive use of chemical fungicides may not ensure higher grain quality and yield, but the integration with B. subtilis BIOUFLA2 can accomplish both. MenosFungicides in maize production under tropical conditions reduce losses from foliar diseases, but only a few reduce ear rot incidence or mycotoxin contamination in kernels. Biocontrol agents (BCAs) may reduce postharvest losses but their efficacy has not been demonstrated in field conditions. Here, we evaluated the use of bacterial isolates in tandem with fungicides on Fusarium verticillioides incidence and fumonisin content. After an early screening, Bacillus subtilis and Streptomyces araujoniae isolates were used in field trials. Maize plants were sprayed twice: at the end of the vegetative stage (V9) and at the beginning of the reproductive stage (R1). Sprays were made by applying water, B. subtilis strain BIOUFLA2, S. araujoniae strain ASBV-1T, or fungicide (cyproconazole + azoxystrobin) in different combinations, totalling nine treatments. Ten days later, all maize ears were inoculated with F. verticillioides. Plants were assessed for foliar diseases, grain yield, F. verticillioides incidence and fumonisin content in kernels. The treatment with two fungicide sprays reduced most of the foliar diseases but not F. verticillioides incidence in kernels. Twice-sprayed B. subtilis and S. araujoniae reduced F. verticillioides, but did not protect leaves against other pathogens. All treatments encompassing a fungicide followed by one of the BCAs reduced F. verticillioides incidence compared to control. Twice-sprayed fungicide increased fumonisin by 50% compared to water control, ... Mostrar Tudo |
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Palavras-Chave: |
biological control agents; foliar diseases; integrated disease management; Mycotoxin; Zea mays. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02913naa a2200325 a 4500
001 1130450
005 2020-12-10
008 2020 bl uuuu u00u1 u #d
100 1 $aGUIMARÃES, R. A.
245 $aIntegrating a chemical fungicide and Bacillus subtilis BIOUFLA2 ensures leaf protection and reduces ear rot (Fusarium verticillioides) and fumonisin content in maize.$h[electronic resource]
260 $c2020
520 $aFungicides in maize production under tropical conditions reduce losses from foliar diseases, but only a few reduce ear rot incidence or mycotoxin contamination in kernels. Biocontrol agents (BCAs) may reduce postharvest losses but their efficacy has not been demonstrated in field conditions. Here, we evaluated the use of bacterial isolates in tandem with fungicides on Fusarium verticillioides incidence and fumonisin content. After an early screening, Bacillus subtilis and Streptomyces araujoniae isolates were used in field trials. Maize plants were sprayed twice: at the end of the vegetative stage (V9) and at the beginning of the reproductive stage (R1). Sprays were made by applying water, B. subtilis strain BIOUFLA2, S. araujoniae strain ASBV-1T, or fungicide (cyproconazole + azoxystrobin) in different combinations, totalling nine treatments. Ten days later, all maize ears were inoculated with F. verticillioides. Plants were assessed for foliar diseases, grain yield, F. verticillioides incidence and fumonisin content in kernels. The treatment with two fungicide sprays reduced most of the foliar diseases but not F. verticillioides incidence in kernels. Twice-sprayed B. subtilis and S. araujoniae reduced F. verticillioides, but did not protect leaves against other pathogens. All treatments encompassing a fungicide followed by one of the BCAs reduced F. verticillioides incidence compared to control. Twice-sprayed fungicide increased fumonisin by 50% compared to water control, while fungicide followed by B. subtilis decreased the fumonisin content by 40%. Replacing the second chemical spray with S. araujoniae did not reduce the fumonisin content but provided a higher yield than a twice-sprayed fungicide. Exclusive use of chemical fungicides may not ensure higher grain quality and yield, but the integration with B. subtilis BIOUFLA2 can accomplish both.
653 $abiological control agents
653 $afoliar diseases
653 $aintegrated disease management
653 $aMycotoxin
653 $aZea mays
700 1 $aZANOTTO, E.
700 1 $aPERRONY, P. E. P.
700 1 $aZANOTTO, L. A. S.
700 1 $aSILVA, L. J.
700 1 $aMACHADO, J. C.
700 1 $aPINTO, F. A. M. F.
700 1 $aMEDEIROS, H. N.
700 1 $aPINHO, R. G. V.
700 1 $aMELO, I. S.
700 1 $aSILVA, J. C. P.
700 1 $aMEDEIROS, F. C. L.
700 1 $aMEDEIROS, F. H. V.
773 $tJournal of Phytopathology, Nova Jersey, EUA, p. 1-10, 2020.
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Epagri-Sede (Epagri-Sede) |
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| Registros recuperados : 3 | |
| 1. |  | ZANOTTO, E.; GUIMARÃES, R. A.; ZANOTTO, L. A. S.; MACHADO, J. C.; MELO, I. S.; PINHO, R. G. V.; PINTO, F. A. M. F.; FORTES, P. H. O. S.; MEDEIROS, H. N.; MEDEIROS, F. H. V. Effect of integrating fungicide and biocontrol foliar sprays on maize grain yield and fumonisin content. IOBC-WPRS Bulletin, Darmstadt, v. 117, p. 79-82, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
| Biblioteca(s): Epagri-Sede. |
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| 2. | | GUIMARÃES, R. A.; ZANOTTO, E.; ZANOTTO, L. A. S.; MACHADO, J. C.; MELO, I. S.; PINHO, R. G. V.; PINTO, F. A. M. F.; FÔRTES, P. H. O. S.; MEDEIROS, H. N.; MEDEIROS, F. H. V. Integrating fungicide and biocontrol foliar spray on maize grain yield and fumonisin content. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 49., 2016, Maceió, AL. Resumos... Viçosa, MG: Sociedade Brasileira de Fitopatologia, 2016.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Epagri-Sede. |
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| 3. | | GUIMARÃES, R. A.; ZANOTTO, E.; PERRONY, P. E. P.; ZANOTTO, L. A. S.; SILVA, L. J.; MACHADO, J. C.; PINTO, F. A. M. F.; MEDEIROS, H. N.; PINHO, R. G. V.; MELO, I. S.; SILVA, J. C. P.; MEDEIROS, F. C. L.; MEDEIROS, F. H. V. Integrating a chemical fungicide and Bacillus subtilis BIOUFLA2 ensures leaf protection and reduces ear rot (Fusarium verticillioides) and fumonisin content in maize. Journal of Phytopathology, Nova Jersey, EUA, p. 1-10, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
| Biblioteca(s): Epagri-Sede. |
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| Registros recuperados : 3 | |
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