ABCD2 and infection: Interestingly, relative to WT, ald1 showed increased susceptibility to PstDC3000 ΔAvrPto/ΔAvrPtoB infection with a higher concentration (OD600 = 0.001) (middle panel in Figure 2C) as well as after spray-inoculation of the strain (OD600 = 0.1) (right panel in Figure 2C).