Figure 1

Transgenic lines with varying root hair lengths. (a) Representative root images of the control (Cont; ProE7:YFP) and transgenic lines overexpressing RHS10 (RHS10ox, ProE7:RHS10), axr2-1 (axr2-1ox, ProE7:axr2-1), RSL4 (RSL4ox, ProE7:RSL4), and IAA2mImII (IAA2mImIIox, ProE7:IAA2mImII). Bar is 100 µm for all. (b) Root hair length of the tested lines. Data represent mean ± s.e.m. (n = 151–511 root hairs from 13–39 roots from each line). (c) Primary root widths and lengths of the tested lines. Data represent mean ± s.e.m. (n = 12–36 roots from each line). Statistically significant differences are denoted with different letters (one-way ANOVA with Tukey’s unequal N-HSD post hoc test, P < 0.05, b,c).