Data/hora: 09/06/2024 17:30:41

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