The DM infection significantly (p < 0.005) increased SOD activity (2.6-fold) and GSH content (5.7-fold) in comparison to control, while luffa plants pre-inoculated with ThM9 and TvA1 and infected with a pathogen (P. cubensis) resulted in a further increase in the SOD activity (7.8-fold) and GSH content (15-fold) in comparison to control plants (Figure 7A). This evidence concerns the gene SOD1 and infection.