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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental; Embrapa Meio Ambiente; Embrapa Roraima. |
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Data corrente: |
03/11/2014 |
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Data da última atualização: |
25/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
HALFELD-VIEIRA, B. de A.; SILVA, W. L. M.; SCHURT, D. A.; ISHIDA, A. K. N.; SOUZA, G. R. de; NECHET, K. de L. |
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Afiliação: |
BERNARDO DE ALMEIDA HALFELD VIEIRA, CNPMA; DANIEL AUGUSTO SCHURT, CPAF-RR; ALESSANDRA KEIKO NAKASONE ISHIDA, CPATU; GIOVANNI RIBEIRO DE SOUZA, CPAF-RR; KATIA DE LIMA NECHET, CNPMA. |
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Título: |
Understanding the mechanism of biological control of passionfruit bacterial blight promoted by autochthonous phylloplane bacteria. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Biological Control, v. 80, p. 40-49, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
The knowledge of biological control mechanism that provides a significant reduction in disease severity can guide the screening procedures and allow the discovery of new possibilities for disease control. In this study, a reduction of bacterial blight severity, caused by three Xanthomonas axonopodis pv. passiflorae (Xap) strains, was demonstrated by using nine indigenous passionfruit phylloplane bacteria regardless of the pathogen origin. Experiments were done to elucidate preemptive exclusion through carbon sources utilization profiles, siderophores production, iron competition and antibiosis. Furthermore, peroxidase activity and spatial separation assays were conducted to evaluate the ability to induce systemic resistance. Identification by 16S rRNA gene sequencing revealed that nine phylloplane strains show highest similarity to Arthrobacter, Curtobacterium, Enterobacter, Microbacterium, Pseudomonas or Stenotrophomonas. It is concluded that competition for iron and nitrogenate compounds on leaves explains the ability of bacterial phylloplane antagonists to control the disease. For siderophore-producing organisms that present antibiosis evidence, complementary iron supplementation assay is mandatory, to avoid misinterpretation. Results suggest that lack of these compounds could limit the optimal conditions for phylloplane colonization by Xap along the infection process. |
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Palavras-Chave: |
Biocontrol. |
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Thesagro: |
Bactéria; Controle Biológico; Ferrugem; Maracujá. |
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Thesaurus Nal: |
Biological control; Blight; phyllosphere; Siderophores; Xanthomonas axonopodis. |
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Categoria do assunto: |
--
H Saúde e Patologia |
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Marc: |
LEADER 02279naa a2200301 a 4500
001 1999107
005 2018-10-25
008 2015 bl uuuu u00u1 u #d
100 1 $aHALFELD-VIEIRA, B. de A.
245 $aUnderstanding the mechanism of biological control of passionfruit bacterial blight promoted by autochthonous phylloplane bacteria.$h[electronic resource]
260 $c2015
520 $aThe knowledge of biological control mechanism that provides a significant reduction in disease severity can guide the screening procedures and allow the discovery of new possibilities for disease control. In this study, a reduction of bacterial blight severity, caused by three Xanthomonas axonopodis pv. passiflorae (Xap) strains, was demonstrated by using nine indigenous passionfruit phylloplane bacteria regardless of the pathogen origin. Experiments were done to elucidate preemptive exclusion through carbon sources utilization profiles, siderophores production, iron competition and antibiosis. Furthermore, peroxidase activity and spatial separation assays were conducted to evaluate the ability to induce systemic resistance. Identification by 16S rRNA gene sequencing revealed that nine phylloplane strains show highest similarity to Arthrobacter, Curtobacterium, Enterobacter, Microbacterium, Pseudomonas or Stenotrophomonas. It is concluded that competition for iron and nitrogenate compounds on leaves explains the ability of bacterial phylloplane antagonists to control the disease. For siderophore-producing organisms that present antibiosis evidence, complementary iron supplementation assay is mandatory, to avoid misinterpretation. Results suggest that lack of these compounds could limit the optimal conditions for phylloplane colonization by Xap along the infection process.
650 $aBiological control
650 $aBlight
650 $aphyllosphere
650 $aSiderophores
650 $aXanthomonas axonopodis
650 $aBactéria
650 $aControle Biológico
650 $aFerrugem
650 $aMaracujá
653 $aBiocontrol
700 1 $aSILVA, W. L. M.
700 1 $aSCHURT, D. A.
700 1 $aISHIDA, A. K. N.
700 1 $aSOUZA, G. R. de
700 1 $aNECHET, K. de L.
773 $tBiological Control$gv. 80, p. 40-49, 2015.
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Registro original: |
Embrapa Roraima (CPAF-RR) |
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| Registros recuperados : 35 | |
| 16. |  | GALVÃO, E. U. P.; CESAR, J.; ITALIANO, E. C. Estado atual de conhecimentos sobre sistemas de produção de culturas alimentares para o Estado do Amazonas. In: SIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. Anais. Belém, PA: EMBRAPA-CPATU, 1986. v. 3, p. 57-69. (EMBRAPA-CPATU. Documentos, 36).| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Ocidental. |
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| 17. | | GALVÃO, E. U. P.; CESAR, J.; ITALIANO, E. C. Estado atual de conhecimentos sobre sistemas de produção de culturas alimentares para o Estado do Amazonas. In: SIMPÓSIO DO TRÓPICO ÚMIDO, 1., 1984, Belém, PA. Anais. Belém, PA: EMBRAPA-CPATU, 1986. v. 3, p. 57-69. (EMBRAPA-CPATU. Documentos, 36). v.3 Culturas temporarias.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 35 | |
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