Figure 7.

Reactive oxygen species staining and physiological indices in ZmLBD5 transgenic Arabidopsis: (A,D) NBT and DAB staining of leaves for H₂O₂ from ZmLBD5 transgenic seedlings and wild-type plants under normal conditions and drought stress (3-week-old seedlings were subjected to drought for 7 days). (B) H₂O₂ content in leaves from ZmLBD5 transgenic seedlings and wild-type plants under normal conditions and drought stress (withholding water for 7 days). (C) SOD activity, (E) POD activity, and (F) CAT activity in leaves from ZmLBD5 transgenic seedlings and wild-type plants under normal and drought conditions (withholding water for 7 days). Significance was analyzed by one-way ANOVA. * p < 0.05; ** p < 0.01; *** p < 0.001. All bars represent means ± SD (n = 6).