Fig. 6

Effect of salt stress on PeWRKY31-overexpressed tobacco. a: SOD, b: POD, and c: MDA contents under NaCl stress. Variation in the d: relative conductivity, e: plant height, and f: ground diameter. The means ± SD of three biological replicates are presented. Error bars represent the standard deviation of the mean. Different letters above the bars indicate a statistically significant difference between the transgenic lines at the P < 0.05 level according to LSD multiple range test