Figure 6.

Antibacterial activity of nanoZn. (a) Growth curves of Ps in KB media and in the presence of ZnSO₄, ACP, and nanoZn. (b) Optical density (OD) at 600 nm at the end of the growth experiments (time = 21 h) of panel a with the corresponding statistical analysis. (c) Percentage of seedlings showing Ps-related no symptoms, incidence, and mortality under each treatment: negative control C– (no inoculated + sterile water), positive control C+ (inoculated + sterile water), inoculated treated with nanoZn (100 ppm Zn), and inoculated treated with ZnSO₄ (100 ppm Zn). (d) Photographs of tomato seedlings 12 days post inoculation with Ps. Dotted circles indicate leaves with chlorosis associated with Ps infection. Both statistical analyses in (b) and (c) were performed using the one-way ANOVA test and Bonferroni’s post hoc test. *p-value < 0.05, **p-value < 0.01, or ***p-value < 0.001.