Toxigenic potential of Fusarium graminearum isolated from maize of northwest Argentina
| Autor: | Diego A. Sampietro, G. R. Apud, María Belizán, Marta Amelia Vattuone, César A.N. Catalán |
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| Rok vydání: | 2013 |
| Předmět: |
Fusarium
Veterinary medicine Mycotoxin contamination FUSARIUM GRAMINEARUM lcsh:QR1-502 Argentina Biology maize Zea mays Microbiology lcsh:Microbiology Ciencias Biológicas purl.org/becyt/ford/1 [https] chemotypes Biología Celular Microbiología trichothecenes TRICHOTHECENES purl.org/becyt/ford/1.6 [https] Hybrid Oryza sativa Chemotype food and beverages Oryza Rice grain biology.organism_classification Fungal biomass Fusarium graminearum Agronomy CHEMOTYPES CIENCIAS NATURALES Y EXACTAS MAIZE Research Paper |
| Zdroj: | Brazilian Journal of Microbiology CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET Brazilian Journal of Microbiology v.44 n.2 2013 Sociedade Brasileira de Microbiologia (SBM) instacron:SBM Brazilian Journal of Microbiology, Volume: 44, Issue: 2, Pages: 417-422, Published: 2013 Brazilian Journal of Microbiology, Vol 44, Iss 2, Pp 417-422 (2013) |
| ISSN: | 1517-8382 |
| DOI: | 10.1590/s1517-83822013000200011 |
| Popis: | 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. Fil: Sampietro, Diego Alejandro. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Apud, Gisselle Raquel. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Belizán, María Melina Eleonora. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Vattuone, Marta Amelia. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Catalan, Cesar Atilio Nazareno. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Instituto de Quimica del Noroeste; Argentina; Argentina |
| Databáze: | OpenAIRE |
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