Fig. 4

Relative lignification in wsr root tips after ISX treatment. Lignification in root tips of Col-0, wsr1–1, wsr1–2, wsr2–1, wsr2–2, wsr3–1, wsr3–2, wsr4–1 and wsr4–2 seedlings was quantified after 24 h of ISX treatment. Bars represent mean values from 3 independent experiments and error bars indicate SD. Asterisks indicate statistically significant differences to the wild type according to Student‘s t test (*p < 0.05)