Fig. 2From: Cortical microtubule orientation in Arabidopsis thaliana root meristematic zone depends on cell division and requires severing by kataninDiagrams depicting the mean length (parallel to the root axis) of meristematic (a) and fast elongation (b) zone cells in untreated and aphidicolin-treated roots. Error bars represent standard error of the means (n = 300 in a, n = 50 in b). The asterisk denotes the only statistically significant difference compared to the control (p <0.05)Back to article page