Fig. 2.

Response of the atcsp3–2 mutant to salt or drought stress. (A) Phenotype of atcsp3–2 on high-salt medium (200 mM NaCl). Seven-d-old wild type and mutant seedlings grown on MS agar medium were transferred to MS medium supplemented with 200 mM NaCl. The photograph was taken after 3 d of salt treatment. (B) Survival rates were calculated from three independent experiments (n = 25) and are expressed as the means ± SE. (C) Phenotype of atcsp3–2 mutants after re-watering subsequent to drought stress induced by withholding water for 5 d. The photographs were taken 1 d after re-watering. Note that pots were rearranged to better show the differences between genotypes. Survivors are surrounded by lines. (D) Survival rates were calculated from three independent experiments (n = 48). Data represent the means ± SE. Asterisks in (B) and (D) indicate significantly lower survival rates than wild-type (WT) plants as determined by Student's t test (**P < 0.01).