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| 51. |  | NECHET, K. de L.; VILELA, E. S. D.; HALFELD-VIEIRA, B. de A.; DONETTI, C. A. Expressão de enzimas de defesa de plantas na interação morangueiro, Botrytis cinerea, Clonostachys rosea em diferentes condições de radiação UV-B em campo. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 46.; REUNIÃO BRASILEIRA DE CONTROLE BIOLÓGICO, 11., 2013, Ouro Preto. Anais... Ouro Preto: UFV, 2013. 1 CD ROM. Resumo 401-2.| Biblioteca(s): Embrapa Meio Ambiente. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Meio Ambiente. Para informações adicionais entre em contato com cnpma.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/11/2019 |
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Data da última atualização: |
25/11/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MATES, A. P. K.; PONTES, N. de C.; HALFELD-VIEIRA, B. de A. |
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Afiliação: |
AVELINE DE PAULA CUYAT MATES, UFRR; NADSON DE CARVALHO PONTES, Instituto Federal Goiano; BERNARDO DE ALMEIDA HALFELD VIEIRA, CNPMA. |
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Título: |
Bacillus velezensis GF267 as a multi-site antagonist for the control of tomato bacterial spot. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Biological Control, v. 137, 2019. Article 104013. |
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Páginas: |
8 p. |
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ISSN: |
1049-9644 |
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DOI: |
https://doi.org/10.1016/j.biocontrol.2019.104013 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Some isolates of sporogenic bacteria can reduce the plant disease intensity through different mechanisms. In the present study, 29 isolates of this group of bacteria were evaluated for the control of tomato bacterial spot in order to select strains with multiple modes of action in disease suppression. In the first experiment, tomato seedlings received three applications of the antagonists on leaves or on soil which were then challenged with Xanthomonas perforans after the second application. There was no effect of the dispensing methods and eight isolates significantly reduced the disease intensity when compared to control. These strains were reassessed for disease control, and characterized based on siderophore production and antibiosis. Eight isolates significantly reduced disease severity in the second in vivo experiment. Among these, strains GF203, GF264, and GF267 inhibited the development of the pathogen in vitro and were able to produce siderophores. Carbon source utilization profile revealed the strain GF267, besides the greatest reduction in the intensity of bacterial spot, presented a reciprocal competition ability with the pathogen. This strain was identified as Bacillus velezensis and, when applied on soil, increased the activity of peroxidase and polyphenoloxidase, provided increment of chlorophyll content, and reduced the disease intensity. Our study demonstrated B. velezensis GF267 as being a multi-site antagonist, which may have potential application in controlling tomato bacterial spot. MenosAbstract: Some isolates of sporogenic bacteria can reduce the plant disease intensity through different mechanisms. In the present study, 29 isolates of this group of bacteria were evaluated for the control of tomato bacterial spot in order to select strains with multiple modes of action in disease suppression. In the first experiment, tomato seedlings received three applications of the antagonists on leaves or on soil which were then challenged with Xanthomonas perforans after the second application. There was no effect of the dispensing methods and eight isolates significantly reduced the disease intensity when compared to control. These strains were reassessed for disease control, and characterized based on siderophore production and antibiosis. Eight isolates significantly reduced disease severity in the second in vivo experiment. Among these, strains GF203, GF264, and GF267 inhibited the development of the pathogen in vitro and were able to produce siderophores. Carbon source utilization profile revealed the strain GF267, besides the greatest reduction in the intensity of bacterial spot, presented a reciprocal competition ability with the pathogen. This strain was identified as Bacillus velezensis and, when applied on soil, increased the activity of peroxidase and polyphenoloxidase, provided increment of chlorophyll content, and reduced the disease intensity. Our study demonstrated B. velezensis GF267 as being a multi-site antagonist, which may have potential applicatio... Mostrar Tudo |
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Palavras-Chave: |
Bacillus velezensis; Competition; Induced systemic resistance; Xanthomonas perforans. |
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Thesagro: |
Bactéria; Controle biológico; Mancha Bacteriana; Tomate. |
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Thesaurus NAL: |
Antibiosis; Bacterial diseases of plants; Biological control agents; Induced resistance; Solanum lycopersicum. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
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001 2115012
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008 2019 bl uuuu u00u1 u #d
022 $a1049-9644
024 7 $ahttps://doi.org/10.1016/j.biocontrol.2019.104013$2DOI
100 1 $aMATES, A. P. K.
245 $aBacillus velezensis GF267 as a multi-site antagonist for the control of tomato bacterial spot.$h[electronic resource]
260 $c2019
300 $a8 p.
520 $aAbstract: Some isolates of sporogenic bacteria can reduce the plant disease intensity through different mechanisms. In the present study, 29 isolates of this group of bacteria were evaluated for the control of tomato bacterial spot in order to select strains with multiple modes of action in disease suppression. In the first experiment, tomato seedlings received three applications of the antagonists on leaves or on soil which were then challenged with Xanthomonas perforans after the second application. There was no effect of the dispensing methods and eight isolates significantly reduced the disease intensity when compared to control. These strains were reassessed for disease control, and characterized based on siderophore production and antibiosis. Eight isolates significantly reduced disease severity in the second in vivo experiment. Among these, strains GF203, GF264, and GF267 inhibited the development of the pathogen in vitro and were able to produce siderophores. Carbon source utilization profile revealed the strain GF267, besides the greatest reduction in the intensity of bacterial spot, presented a reciprocal competition ability with the pathogen. This strain was identified as Bacillus velezensis and, when applied on soil, increased the activity of peroxidase and polyphenoloxidase, provided increment of chlorophyll content, and reduced the disease intensity. Our study demonstrated B. velezensis GF267 as being a multi-site antagonist, which may have potential application in controlling tomato bacterial spot.
650 $aAntibiosis
650 $aBacterial diseases of plants
650 $aBiological control agents
650 $aInduced resistance
650 $aSolanum lycopersicum
650 $aBactéria
650 $aControle biológico
650 $aMancha Bacteriana
650 $aTomate
653 $aBacillus velezensis
653 $aCompetition
653 $aInduced systemic resistance
653 $aXanthomonas perforans
700 1 $aPONTES, N. de C.
700 1 $aHALFELD-VIEIRA, B. de A.
773 $tBiological Control$gv. 137, 2019. Article 104013.
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