Data/hora: 09/06/2024 11:24:17

Provedor de dados: 	58	
País: 	Brazil	
Título: 	Toxigenic potential of Fusarium graminearum isolated from maize of northwest Argentina	
Autores: 	Sampietro,D.A.; Apud,G.R.; Belizán,M.M.E.; Vattuone,M.A.; Catalán,C.A.N.	
Data: 	2013-01-01	
Ano: 	2013	
Palavras-chave: 	Fusarium graminearum; Trichothecenes; Maize; Chemotypes.	
Resumo: 	Twenty six isolates of Fusarium graminearum from grains of maize hybrids harvested in ±west Argentina were grown on autoclaved rice grain to assess their ability to produce type B trichothecenes. Chemical analysis indicated that 38% of isolates were nivalenol (NIV) producers only, 31% were major NIV producers with high DON(deoxynivalenol)/NIV ratios, 8% were major DON producers with minor NIV production, and 23% were DON producers only. Isolates showed a high variability in their toxigenic potential which was not related to fungal biomass. The distribution of the different chemotypes as well as the high and the low trichothecene-producing Fusarium isolates could not be associated to a geographical origin. Our results confirmed for the first time that isolates of Fusarium graminearum from maize of northwest Argentina are able to produce DON and NIV. A substancial contamination with both NIV and DON is likely in maize from northwest Argentina. Their contents should be quantified in regional surveillances for mycotoxin contamination.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200011	
Editor: 	Sociedade Brasileira de Microbiologia	
Relação: 	10.1590/S1517-83822013000200011	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Microbiology  v.44 n.2 2013	
Fonte: 	info:eu-repo/semantics/openAccess