Fig. 6

R. solanacearum F1C1 and phcA mutant are more aggressive in eggplant than in tomato seedlings inoculated by the leaf-clip method. Tomato and eggplant seedlings in a single microfuge tube were inoculated with F1C1, hrpB, hrpG or phcA mutants of F1C1 to study R. solanacearum aggressiveness in these two host seedlings. Wild type F1C1 exhibited more disease aggressiveness in eggplant seedlings in comparison to tomato (P < 0.001; log-rank test). Similarly, for phcA mutant inoculation, disease aggressiveness was more in eggplant after 6 dpi than in tomato seedlings (P < 0.001; log-rank test). Interestingly, we found more disease aggressiveness in tomato seedlings than in eggplant upon inoculation with hrpG mutant. However, hrpB was found to be non-pathogenic both in eggplant and tomato seedlings. All data point in the line graph is an average of three independent experiments with two replicates. Error bars are depicting standard errors. Different colors were used to mark the virulence progression of different strains in tomato and eggplant seedlings