Figure 6.

TTL4 loss of function increases tolerance to mild NaCl stress. A, Relative fresh weight of single ttl mutants and selected double and triple ttl mutants in MS medium or MS medium supplemented with 120 mm NaCl. All genotypes containing the ttl4 mutation displayed improved growth in medium supplemented with NaCl. Asterisks indicate significant differences between samples as determined by t test (* P < 0.05). B, Images of seedlings grown on MS agar medium for 1 week and transferred to MS agar medium for an additional 7 d without (left) or with (right) 120 mm NaCl. C, Sodium content in the shoot of the seedlings depicted in B. The asterisk indicates a significant difference between samples as determined by t test (* P < 0.05). WT, Wild type. [See online article for color version of this figure.]