Figure 6.

Effects of Spm and KCl on seedling root growth in WT and pip5k7/9 mutant plants.

Five‐day‐old seedlings were transferred to plates supplemented with (a, b) Spm or (c, d) KCl and grown for 4 more days. (a) Phenotype of WT and mutant seedlings grown with and without 150 µm Spm. (b) Effects of Spm on main root (MR) growth of WT and pip5k7/9 seedlings. (c, d) Phenotype of WT and mutant seedlings grown with and without of 50 mm KCl. Results are expressed as the MR growth ratio. Data are presented as the mean ± SD (n = 40). White dashes indicate the position of the root tip when seedlings were transferred.