Relationship between Fusarium graminearum and Alternaria alternata contamination and deoxynivalenol occurrence on Argentinian durum wheat

A mycological survey was carried out on durum wheat (Triticum durum) samples from the main production area of Argentina. The isolation frequency and relative density of species of dematiaceous fungi, and genus Fusarium were calculated. Alternaria alternata and Fusarium graminearum were the predomina...

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Detalles Bibliográficos
Autores principales: González, H.H.L., Martínez, E.J., Pacin, A., Resnik, S.L.
Formato: JOUR
Materias:
Alternaria alternata
Deoxynivalenol
Durum wheat
Fusarium graminearum
trichothecene derivative
vomitoxin
Alternaria
Argentina
article
bacterial count
food control
Fusarium
isolation and purification
microbiology
nonparametric test
wheat
Colony Count, Microbial
Food Microbiology
Statistics, Nonparametric
Trichothecenes
Triticum
Alternata alternata
Bacteria (microorganisms)
Fungi
Gibberella zeae
Triticum aestivum
Triticum turgidum subsp. durum
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0301486X_v144_n2_p97_Gonzalez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:A mycological survey was carried out on durum wheat (Triticum durum) samples from the main production area of Argentina. The isolation frequency and relative density of species of dematiaceous fungi, and genus Fusarium were calculated. Alternaria alternata and Fusarium graminearum were the predominant fungal species. An analysis of deoxynivalenol (DON) natural contamination was also performed on a limited number of samples (60). DON contamination levels in positive samples ranged from 26 to 6400 μg/kg. The non-parametric techniques applied showed that there is a positive relationship between DON contamination and F. graminearum relative densities and a negative relationship between DON contamination and A. alternata relative densities.

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