Deoxynivalenol and contaminant mycoflora in freshly harvested Argentinian wheat in 1993 |
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| Authors: | H H L González A Pacin S L Resnik E J Martinez |
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| Institution: | (1) Consejo National de Investigaciones Cientificas y Técnicas, Argentina;(2) Facultad de Ingenieria, Universidad de Buenos Aires, Argentina;(3) Universidad National de Luján, Argentina;(4) Comisión de Investigaciones Cientificas de la Provincia de Buenos Aires, Argentina;(5) Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina;(6) Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 Buenos Aires, Argentina |
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| Abstract: | A mycological survey was carried out on wheat heads from the main production area of Argentina. The isolation frequency and relative density of species from genus Fusarium and dematiaceous fungi were calculated. F graminearum was the predominant Fusarium species; similar to that observed in the USA and Canada. An analysis of deoxynivalenol (DON) natural contamination also was performed on a limited number (44) of samples. DON contamination levels in positive samples ranged from 0.2 to 30 ppm. A stepwise regression procedure showed that, among the species analysed, F. graminearum relative density was related to the DON contamination level and that other prevalent fungi did not influence or modify that relationship. |
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| Keywords: | Fusarium graminearum corn deoxynivalenol Alternaria |
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