Fig. 5

Na⁺ and K⁺ content in Arabidopsis plants. WT and transgenic plants were grown for 10 days in soil containing 0 or 200 mM NaCl. Na⁺ (a) and K⁺ (b) in the leaves of these plants were measured as described in the Methods section. Data are presented as mean ± SE of three replicates. Different letters above the columns indicate statistically significant differences at a p < 0.05 level among the different experimental cohorts. SpSOS1, SpSOS1-overexpressing plants; SpAHA1, SpAHA1-overexpressing plants; SpSOS1-SpAHA1, SpSOS1 and SpAHA1 co-expressing plants; WT, wild-type plants