Figure 2.

Sexual development and virulence of NADPH oxidase deletion mutants. (A) Perithecium formation by the NADPH oxidase deletion mutants. Cirrhi (indicated by white arrows) were observed in the wild‐type (WT) and in the noxB and noxC deletion mutants 10 days after sexual induction. Scale bar, 500 µm. (B) Virulence on wheat heads. The centre spikelet of each wheat head was injected with 10 µL of a conidial suspension, and photographs were taken at 21 days after inoculation. Arrowheads indicate the inoculated spikelets. ‘Mock’ indicates wheat heads that were mock inoculated with 0.01% Tween 20.