bda1-1 exhibits enhanced susceptibility to P.s.t. DC3000. A, Growth of P.s.t. DC3000 on wild-type (WT), snc2-8, and bda1-1 plants. Leaves of 5-week-old plants were infiltrated with a bacterial suspension at an optical density at 600 nm of 0.0002. The values presented are averages of four replicates ± sd. cfu, Colony-forming units. Statistical differences among the samples are labeled with different letters (P < 0.001). B, Growth of P.s.t. DC3000 on wild-type, snc2-8, and bda1-1 plants. Leaves were collected 2 d after spray inoculation with a bacterial suspension at an optical density at 600 nm of 0.2. The values presented are averages of six replicates ± sd. Statistical differences among the samples are labeled with different letters (P < 0.001).