Figure 3.

Disease development on Arabidopsis inoculated with A. brassicicola. A, Necrotic lesions on leaves of 4-week-old Arabidopsis wild-type (Col-0), ein2-1, and coi1-1 plants drop-inoculated with spores of A. brassicicola. B, Average diameter of lesions formed after 6 d on 4-week-old Arabidopsis plants inoculated with a spore suspension of A. brassicicola. Data points represent averages ± se of measurements from 60 lesions on 15 different plants. Bars with different letter labels indicate that the corresponding data are significantly different (P > 0.95) according to Tukey's studentized range test (Neter et al., 1996). C, Percentage fungal RNA of total RNA in infection sites at different times after inoculation of leaves with A. brassicicola. Data points represent measurements on RNA extracted from 30 leaf discs. ○, Col-0; □, ein2-1; and ♦, coi1-1. The experiment was repeated twice with similar results.