Substantial levels of deoxynivalenol, 15-acetyldeoxynivalenol and zearalenone were detected in the severely rotted kernels from one side of ears of a commercial maize hybrid (DeKalb XL-12) that had been wound-inoculated 7 days after silk emergence with strain NRRL 13188 of G. zeae. Storage of the remainder of the ears at 12 or 16 °C for 10 wk produced no change in the concentration of deoxynivalenol recovered, whereas 15-acetyldeoxynivalenol disappeared and zearalenone increased 1.7 to 2.3-fold