Fig. 5. Mean root hair length at four time points: 4, 8, 12 and 24 hours after the shy2-6 or axr3-1 transgene induction from the heat shock promoter (HS). The same transgenic lines without heat shock were used as controls (Con). The mean length of 10 root hairs from at least three plants, at each time point, is shown and bars represent the standard errors of the means.