Fig. 2

Ascorbic acid (AsA) improves the high salinity tolerance of ABI4-overexpressing lines. a The survival phenotype of different ABI4 genotypes after 150 mM NaCl treatment (with or without 40 μM AsA). 3-day-old seedlings were transferred to 1/2 MS medium containing salt with or without exogenous AsA and grown for another four days. Bar =1.4 cm. b The survival rate of different ABI4 genotypes after 150 mM NaCl treatment (with or without 40 μM AsA). Values are means ± SD (n = 3). Statistically significant differences are indicated by different letters (P < 0.05, ANOVA with Tukey’s test)