Figure 7.

Auxin restoration of LR development in drr1 plants. A, Total LR number per plant in 11-d-old wild-type (Ws) and drr1 plants that were first grown for 7 d in 0.2 × MS agar medium and then transferred to 0.2 × MS liquid medium supplied with the solvent or with varied concentrations of NAA for an additional 4-d growth period. B to I, Representative photographs of wild-type and drr1 LRs in plants exposed to NAA. Values shown in A are means ± sd (n = 15). Different letters represent means statistically different at the 0.05 level. This analysis was repeated twice with similar results. [See online article for color version of this figure.]