Fig. 1

Response of rel1-D to drought stress. a, Phenotype of WT and rel1-D with drought treatment. Two-month-old seedlings were used, bars = 10 cm. b, Survival rate of WT and rel1-D were derived from the (A). c, Third leaf stage seedling of WT and rel1-D were treated by different concentration of PEG, bars = 5 mm. d, Measurement of SOD activity in wild type and rel1-D. E-I, Expression of drought-responsive genes in wild type and rel1-D. b and e-i, Data were presented as mean ± S.E., * p-value < 0.05, ** p-value < 0.01, two-tailed, two sample Student’s t test