Fig. 7

Hypersensitivity of cipk15 mutant plants to NH₄⁺and MeA. Representative images (a) and quantification results of primary root length of plants grown on plates containing 20 mM NHCl₄ (b) or 20 mM MeA (c). Primary root length in wild-type (Col-0), qko mutant, and cipk15 mutants on 20 mM NH₄Cl (b) or on 20 mM MeA (c) are presented as box and whiskers. Center lines show the medians; box limits indicate the 25th and 75th percentiles as determined by Prism software; whiskers extend 1.5 times the interquartile range from the 25th and 75th percentiles, outliers are represented by dots (means ± SE; n ≥ 15). p, significant change of qko mutant and cipk15 mutants compared to wild-type plants (two-way ANOVA followed by Tukey’s post-test). Scale bar: 0.1 cm