2000•Journal of the Science of Food and AgricultureRequires access
Fumonisin B1, zearalenone and deoxynivalenol production byFusarium moniliforme,F proliferatum andF graminearum in mixed cultures on irradiated maize kernels
Andrea Velluti, Sonia Mar�n, Roger González, Antonio J. Ramos, Vicente Sanchís
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Abstract
The impact on fungal growth and mycotoxin formation of interactions between fumonisin-producing isolates of Fusarium moniliforme and F proliferatum and a zearalenone (ZEA)- and deoxynivalenol (DON)-producing isolate of F graminearum inoculated together on irradiated maize at 15 and 25 °C and at 0.98, 0.95 and 0.93 aw was studied. The presence of F graminearum decreased the fungal populations (CFU g−1 grain) of F moniliforme and F proliferatum under almost all conditions tested. In the presence of F moniliforme, CFUs of F graminearum increased significantly at 25 °C, especially at 0.93 and 0.95 aw, while the presence of F proliferatum caused them to increase at 15 °C. The presence of F graminearum always inhibited FB1 production, except at 25 °C and 0.98 aw where it increased. However, the observed differences were not statistically significant. There was no effect of fungal interaction on ZEA production by F graminearum; however, when paired with F moniliforme and F proliferatum, DON production by F graminearum was significantly stimulated, especially at 0.98 aw. © 2000 Society of Chemical Industry