Figure 2.

Qualitative view of fungal biomass accumulation shows that more fungal tissue grows during an incompatible interaction on wheat leaves. Micrographs of leaves of the susceptible wheat “Thatcher” (upper) and of the same variety bearing the Lr1 resistance gene (lower) inoculated with spores of P. triticina and harvested at the times shown. Images were made using a UV microscope. The white bar indicates a length of 100 µm.