Figure 2.

BIK1 Is Required for PTI to B. cinerea.

Disease symptoms (A) and mean lesion size (B) of water (−) and flg22-treated (+) bik1 and BIK1 substitution mutants after drop inoculation with B. cinerea (2.5 × 10⁵ spores/mL). Data in (B) represent mean ± se from a minimum of 30 disease lesions. The statistical significance of the mean lesion sizes was determined using analysis of variance and Tukey’s test. The mean values followed by different letters are significantly different from each other (P = 0.01) Experiments were repeated at least three times with similar results. Images were taken 3 d after inoculation. The BIK1 site-directed mutants and the wild-type (wt) BIK1-HA are expressed in the bik1 mutant background.