Figure 8
Symptoms caused by different bacteria. Analysis of symptoms caused by the non-pathogenic E. coil K12 strain DH5αand the pathogenic Pseudomonas syringae pathovar tomato DC3000. Leaves from 6-week-old Arabidopsis plants were infiltrated with bacterial solution at OD600 = 0.1. a-d: Macroscopic observations of symptom development from 0 to 5 day after infiltration (DAI) with (a): water (mock control), (b): 10 mM MgCl2 (buffer control), (c): E. coli, (d): Pseudomonas syringae. (e): Calculated average percentages of leaf surfaces showing infection symptoms. Five leaves per time point were photographed. Experiment was repeated five times.