Data/hora: 23/06/2024 22:38:53

Biblioteca(s): 	Embrapa Meio Ambiente.	
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