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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
03/07/2017 |
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Data da última atualização: |
10/07/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
VARGAS-HOYOS, H. A.; CHIARAMONTE, J. B.; SANTOS, S. N.; QUEIROZ, S. C. do N. de; MELO, I. S. de. |
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Afiliação: |
H. A. VARGAS-HOYOS; J. B. CHIARAMONTE; S. N. SANTOS; SONIA CLAUDIA DO N DE QUEIROZ, CNPMA; ITAMAR SOARES DE MELO, CNPMA. |
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Título: |
Bioprospecting of culturable actinobacteria from soil and rhizosphere as potential inhibitors of Sclerotinia sclerotiorum. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 49., 2016, Maceió. Anais... Maceió: Sociedade Brasileira de Fitopatologia, 2016. Ref. 174. |
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Idioma: |
Inglês |
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Conteúdo: |
White mold, caused by S. sclerotiorum, is one important disease of soybean crops (Glicyne Max. (L)Merrill.) with considerable yield losses. Absence of effective control and resistance of the fungus to commercial fungicides make this phytopathogen a serious problem in tropical regions. Streptomyces species turn out to be potential candidates for agricultural applications due to their biotechnological features. The goal of this research was bioprospecting Streptomyces sp. for biocontrol of white mold. In order to evaluate the antifungal activity, six pre-selected isolates: S. rishiriensis (3AS4), S. albolungus (3BS4), S. champavatti (CanV2 39), S. violascens (CanV2 06f) and S. covourensis (1AS2a, 1AS2c) were used. They were grown for 2 weeks at 28 ºC at 135 rpm and crude extracts were obtained with Ethyl acetate (EtOAc) and Dichloromethane (DCM). Minimum inhibitory concentration (MIC) and spent media were performed against S. sclerotiorum. Biocontrol was evaluated under greenhouse conditions with inoculated nonsterile soil. The best MIC was determined as 0,165 mg.mL-1 for 1AS2a DCM extract. 3BS4 showed the highest mycelial inhibition growth (85,94%). Isolates 3AS4, 3BS4, 1AS2a and 1AS2c were capable of controlling white mold symptoms under greenhouse conditions. Regarding plant growth promotion, 1AS2a displayed the highest shoot:root ratio. These results suggest actinobacteria can be used as a potent biological control agent against white mold. |
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Palavras-Chave: |
Biocontrol. |
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Thesagro: |
Controle biológico. |
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Thesaurus Nal: |
Actinobacteria. |
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Categoria do assunto: |
W Química e Física |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/161609/1/hoyos.pdf
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Marc: |
LEADER 02192nam a2200193 a 4500
001 2071846
005 2017-07-10
008 2016 bl uuuu u00u1 u #d
100 1 $aVARGAS-HOYOS, H. A.
245 $aBioprospecting of culturable actinobacteria from soil and rhizosphere as potential inhibitors of Sclerotinia sclerotiorum.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 49., 2016, Maceió. Anais... Maceió: Sociedade Brasileira de Fitopatologia, 2016. Ref. 174.$c2016
520 $aWhite mold, caused by S. sclerotiorum, is one important disease of soybean crops (Glicyne Max. (L)Merrill.) with considerable yield losses. Absence of effective control and resistance of the fungus to commercial fungicides make this phytopathogen a serious problem in tropical regions. Streptomyces species turn out to be potential candidates for agricultural applications due to their biotechnological features. The goal of this research was bioprospecting Streptomyces sp. for biocontrol of white mold. In order to evaluate the antifungal activity, six pre-selected isolates: S. rishiriensis (3AS4), S. albolungus (3BS4), S. champavatti (CanV2 39), S. violascens (CanV2 06f) and S. covourensis (1AS2a, 1AS2c) were used. They were grown for 2 weeks at 28 ºC at 135 rpm and crude extracts were obtained with Ethyl acetate (EtOAc) and Dichloromethane (DCM). Minimum inhibitory concentration (MIC) and spent media were performed against S. sclerotiorum. Biocontrol was evaluated under greenhouse conditions with inoculated nonsterile soil. The best MIC was determined as 0,165 mg.mL-1 for 1AS2a DCM extract. 3BS4 showed the highest mycelial inhibition growth (85,94%). Isolates 3AS4, 3BS4, 1AS2a and 1AS2c were capable of controlling white mold symptoms under greenhouse conditions. Regarding plant growth promotion, 1AS2a displayed the highest shoot:root ratio. These results suggest actinobacteria can be used as a potent biological control agent against white mold.
650 $aActinobacteria
650 $aControle biológico
653 $aBiocontrol
700 1 $aCHIARAMONTE, J. B.
700 1 $aSANTOS, S. N.
700 1 $aQUEIROZ, S. C. do N. de
700 1 $aMELO, I. S. de
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| Registros recuperados : 8 | |
| 6. |  | SILVA, L. J. da; SOUZA, D. T.; GENUÁRIO, D. B.; VARGAS-HOYOS, H. A.; SANTOS, S. N.; ROSA, L. H.; ZUCCHI, T. D.; MELO, I. S. de. Rhodococcus psychrotolerans sp. nov., isolated from rhizosphere of Deschampsia antarctica. Antonie van Leeuwenhoek, v. 111, n. 4, p. 629-636, 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 7. | | VARGAS HOYOS, H. A.; SANTOS, S. N.; SILVA, L. J. da; SILVA, F. S. P. da; GENUÁRIO, D. B.; ZUCCHI, T. D.; MELO, I. S. de. Streptomyces rhizosphaericola sp. nov., an actinobacterium isolated from the wheat rhizosphere. International Journal of Systematic and Evolutionary Microbiology, v. 69, n. 8, p. 2431?2439, 2019.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| 8. | | VARGAS HOYOS, H. A.; CHIARAMONTE, J. B; BARBOSA-CASTELIANI, A G.; , ORAIS, J. F.; PEREZ-JARAMILLO, J. E.; SANTOS, S. N.; QUEIROZ, S. C. do N. de; MELO, I. S. de. An Actinobacterium strain from soil of Cerrado promotes Phosphorus solubilization and plant growth in soybean plants. Frontiers in Bioengineering and Biotechnology, v. 9, article 2019, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Meio Ambiente. |
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| Registros recuperados : 8 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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