Figure 8.

Application of Ferric Citrate Enhances the Virulence of the F. graminearum Δnps6 Strain to Wheat.

(A) Wheat spikes inoculated with Δnps6 strain Fgnps6-3-2 or the wild-type strain of F. graminearum, with or without application of 1 mM ferric citrate, 20 d after inoculation. Mock-inoculated controls are shown at right in both rows.

(B) Kernels from the spikes shown in (A). Numbers correspond to those in (A). Blanks indicate that the kernels were not recovered as a result of the severity of infection.