Fig. 6From: The beneficial endophytic microbes enhanced tobacco defense system to resist bacterial wilt diseaseThe effects of R. solanacearum infection on the activities of several representative defense enzymes (SOD, PPO, POD, PAL, CAT and β-1,3-GA) in tobacco root and stem. Different letters above the columns indicate significant differences at P < 0.05 as indicated by the Tukey’s testBack to article page