Phytotoxicity of fumonisin B1, moniliformin, and T-2 toxin to corn callus cultures.
1992
Van Asch M.A.J. | Rijkenberg F.H.J. | Coutinho T.A.
The phytotoxicity of the Fusarium moniliforme metabolite, fumonisin B, (FB1), to corn callus cultures was determined and compared with two other Fusarium mycotoxins with known phytotoxic effects, moniliformin, and T-2 toxin. The callus was grown on modified MS medium containing either 0.1, 1.0, 10, or 100 mg of toxin per liter. Callus growth was reduced as the concentration of FB1 in the culture medium increased, resulting in a significant inhibition at 1.0 mg/L (1.30 micromolar) and higher toxin levels. The micromolar concentrations of each toxin required to cause > 50% reduction in growth of corn calli relative to toxin-free controls was 13.0 micromolar for FB1, 102 micromolar for moniliformin, and 215 micromolar for T-2 toxin.
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