Figure 4. Infection assays with flowering wheat heads.

(A) Wheat heads were drop-inoculated with sterile water or conidia from the wild-type strain PH-1, map1 mutant, and complemented map1/PsMAPK1 transformant CF-6. The inoculation sites are marked with arrows. Typical heads were photographed 14 days after inoculation. (B) Disease index scores of PH-1, map1, and CF-6. Mean and standard error were calculated from three independent infection assays.