Data/hora: 19/06/2024 09:20:31

Biblioteca(s): | Embrapa Meio Ambiente.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 10/01/2011
Data da última atualização: | 28/04/2011
Autoria: | CANOVA, S. P.; PETTA, T.; REYES, L. F.; ZUCCHI, T. D.; MORAES, L. A. B. de; MELO, I. S. de.
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.
Título: | Characterization of lipopeptides from Paenibacillus sp. (IIRAC30) suppressing Rhizoctonia solani.
Ano de publicação: | 2010
Fonte/Imprenta: | World Journal of Microbiology and Biotechnology, v. 26, n. 12, p. 2241-2247, 2010.
DOI: | 10.1007/s11274-010-0412-9
Idioma: | Inglês
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.
Thesagro: | Controle Biológico; Doença de Planta.
Categoria do assunto: | --
Registro original: | Embrapa Meio Ambiente (CNPMA)
Exemplares: | CNPMA - (9527-1) - UPC - SP - PP - AP - PAT 2010 - 2010.00075 - DIS