| Registro completo |
| Provedor de dados: |
BJM
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| País: |
Brazil
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| Título: |
Toxigenic potential of Fusarium graminearum isolated from maize of northwest Argentina
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| Autores: |
Sampietro,D.A.
Apud,G.R.
Belizán,M.M.E.
Vattuone,M.A.
Catalán,C.A.N.
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| Data: |
2013-01-01
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| Ano: |
2013
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| Palavras-chave: |
Fusarium graminearum
Trichothecenes
Maize
Chemotypes
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000200011
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| Editor: |
Sociedade Brasileira de Microbiologia
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| Relação: |
10.1590/S1517-83822013000200011
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Microbiology v.44 n.2 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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