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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
10/01/2011 |
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Data da última atualização: |
28/04/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CANOVA, S. P.; PETTA, T.; REYES, L. F.; ZUCCHI, T. D.; MORAES, L. A. B. de; MELO, I. S. de. |
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Afiliação: |
Sarah P. Canova, Centro de Pesquisas Biotecnológicas - USP; Tânia Petta, FFCL de Ribeirão Preto - USP; Luciana F. Reyes, Centro de Pesquisas Biotecnológicas - USP; Tiago D. Zucchi, ESALQ-USP; Luiz A. b. Moraes, FFCL de Ribeirão Preto - USP; ITAMAR SOARES DE MELO, CNPMA. |
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Título: |
Characterization of lipopeptides from Paenibacillus sp. (IIRAC30) suppressing Rhizoctonia solani. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
World Journal of Microbiology and Biotechnology, v. 26, n. 12, p. 2241-2247, 2010. |
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DOI: |
10.1007/s11274-010-0412-9 |
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Idioma: |
Inglês |
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Conteúdo: |
The main aim was to identify the active compound against Rhizoctonia solani produced by the cassava endophyte Paenibacillus sp. IIRAC-30. The compounds produced were extracted with ethyl acetate and purified by Sephadex column prior to analysis by Q-TOF mass spectrometry. A C15-lipopeptide with an estimated molecular weight of 1036 Da and homologues were identified. The lipopeptide had a cyclic structure, which was deduced by interpreting the ESI?MS/MS spectra of main protonated homologues containing 15:0 FA, and the amino acid composition was Glu-Leu-Leu-Val-Asp-Leu-Leu. Therefore, the lipopeptides produced by isolate IIRAC-30 was characterized as a surfactin series. Thus, the main mechanism used by Paenibacillus sp. IIRAC-30 to suppress R. solani was elucidated. Furthermore, because lipopeptides active against phytopathogens generally show low toxicity to humans and the environment, the positive findings presented here suggest that the isolate IIRAC-30 could be a possible candidate for biocontrol of R. solani. |
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Thesagro: |
Controle Biológico; Doença de Planta. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01699naa a2200217 a 4500
001 1872513
005 2011-04-28
008 2010 bl --- 0-- u #d
024 7 $a10.1007/s11274-010-0412-9$2DOI
100 1 $aCANOVA, S. P.
245 $aCharacterization of lipopeptides from Paenibacillus sp. (IIRAC30) suppressing Rhizoctonia solani.
260 $c2010
520 $aThe main aim was to identify the active compound against Rhizoctonia solani produced by the cassava endophyte Paenibacillus sp. IIRAC-30. The compounds produced were extracted with ethyl acetate and purified by Sephadex column prior to analysis by Q-TOF mass spectrometry. A C15-lipopeptide with an estimated molecular weight of 1036 Da and homologues were identified. The lipopeptide had a cyclic structure, which was deduced by interpreting the ESI?MS/MS spectra of main protonated homologues containing 15:0 FA, and the amino acid composition was Glu-Leu-Leu-Val-Asp-Leu-Leu. Therefore, the lipopeptides produced by isolate IIRAC-30 was characterized as a surfactin series. Thus, the main mechanism used by Paenibacillus sp. IIRAC-30 to suppress R. solani was elucidated. Furthermore, because lipopeptides active against phytopathogens generally show low toxicity to humans and the environment, the positive findings presented here suggest that the isolate IIRAC-30 could be a possible candidate for biocontrol of R. solani.
650 $aControle Biológico
650 $aDoença de Planta
700 1 $aPETTA, T.
700 1 $aREYES, L. F.
700 1 $aZUCCHI, T. D.
700 1 $aMORAES, L. A. B. de
700 1 $aMELO, I. S. de
773 $tWorld Journal of Microbiology and Biotechnology$gv. 26, n. 12, p. 2241-2247, 2010.
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Embrapa Meio Ambiente (CNPMA) |
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