FIGURE 9.

Overexpression of SiMADS51 reduces tolerance to drought stress in transgenic rice plants. (A) Phenotypes of CK and SiMADS51-transgenic rice under the treatment of PEG-6000. (B) Survival rate and (C) fresh weight of normal and PEG-6000 stressed plants. (D) POD, and (E) SOD activities were measured under PEG-6000 stress and normal growth conditions. (F) Chlorophyll content were detected in CK and OE plants under PEG-6000 stress or normal growth condition. Data are presented as the means ± SDs of three independent replicates. The asterisks indicate significant differences between WT and SiMADS51-overexpressing lines (*P < 0.05; **P < 0.01; Student’s t-test).