Data/hora: 13/06/2024 14:32:06

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Effect of fungicide on Fusarium verticillioidesmycelial morphology and fumonisin B1 production	
Autores: 	Miguel,Tatiana de Á.; Bordini,Jaqueline G.; Saito,Gervásio H.; Andrade,Célia G.T. de J.; Ono,Mario A.; Hirooka,Elisa Y.; Vizoni,Édio; Ono,Elisabete Y.S.	
Data: 	2015-03-01	
Ano: 	2015	
Palavras-chave: 	Toxigenic fungi; Mycotoxin; Scanning electron microscopy; Electron micrographs; Extracellular material.	
Resumo: 	The effect of fludioxonil + metalaxyl-M on the mycelial morphology, sporulation and fumonisin B1 production by Fusarium verticillioides 103 F was evaluated. Scanning electron microscopy analysis showed that the fungicide caused inhibition of hyphal growth and defects on hyphae morphology such as cell wall disruption, withered hyphae, and excessive septation. In addition, extracellular material around the hyphae was rarely observed in the presence of fludioxonil + metalaxyl-M. While promoting the reduction of mycelial growth, the fungicide increased sporulation of F. verticillioides compared to the control, and the highest production occurred on the 14th day in the treatments and on the 10th day in the control cultures. Fumonisin B1production in the culture media containing the fungicide (treatment) was detected from the 7th day incubation, whereas in cultures without fungicide (control) it was detected on the 10th day. The highest fumonisin B1 production occurred on the 14th day, both for the control and for the treatment. Fludioxonil + metalaxyl - M can interfere in F. verticillioides mycelial morphology and sporulation and increase fumonisin B1 levels. These data indicate the importance of understanding the effects of fungicide to minimize the occurrence of toxigenic fungi and fumonisins.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100293	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-838246120120383	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.46 n.1 2015	
Fonte: 	info:eu-repo/semantics/openAccess