The ses1 mutant is sensitive to salt stress. A, Images of wild-type (WT) and ses1 mutant seedlings grown on one-half-strength Murashige and Skoog (1/2 MS) agar plates with or without 125 mm NaCl treatment. Photographs were taken after growing vertically at 22°C for 7 d. Bar = 1 cm. B, Root length of the seedlings in A. Error bars indicate sd (n = 18). ***, P < 0.001 (Student’s t test). C, Images of 3-week-old wild-type and ses1 plants with or without 200 mm NaCl treatment. D, Survival rate of the wild-type and ses1 plants in C. Error bars indicate sd (n = 60). ***, P < 0.001 (Student’s t test).