Fungi associated with sorghum grain from Argentina |
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Authors: | González HHL Martínez EJ Resnik SL |
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Institution: | (1) Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina;(2) Facultad de Ingeniería, Universidad de Buenos Aires, Argentina;(3) Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina;(4) Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Argentina |
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Abstract: | Sorghum (Sorghum bicolor (L.) Moench) is an important cereal produced in and exported from Argentina. The risk of contamination
by mycotoxins is related to the mycoflora associated with the sorghum grain. This paper reports on the identification of internal
mycoflora of sorghum grain harvested in Argentina in 1991, 1992 and 1993, years with different total rainfall levels.
A mycological survey was carried out on sorghum samples, from a location at the humid Argentinian pampa, using a Fusarium/dematiaceous
fungi selective medium. The relative density of the prevalent fungal genera were statistically compared. Genus Fusarium was
the most prevalent component of the internal seedborne mycoflora in the three harvest seasons. Genera Alternaria, Phoma, Penicillium
and Aspergillus were also isolated. The predominant Fusarium was F. moniliforme and the most frequently isolated species of
Alternaria, Phoma, Penicillium and Aspergillus were Alt. alternata, Pho. sorghima, Pen. funiculosum and Asp. flavus, respectively.
This is the first report of the isolation of Fusarium napiforme in sorghum grain in Argentina.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | Fusarium Alternaria Penicillium Aspergillus Phoma sorghum |
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