Figure 4.

Effects of N-isobutyl decanamide on wild-type (Ws) and drr1 LR development. A, LRP stage distribution in 6-d-old primary roots grown on medium supplied with the solvent only or with 30 μm N-isobutyl decanamide (indicated as decanamide). B, Emerged LR density in the same experiment. Wild-type and drr1 seedlings were cleared, and the number and stage of LRP were recorded according to Malamy and Benfey (1997). Values shown are means ± sd (n = 15). Different letters represent means statistically different at the 0.05 level. This analysis was repeated twice with similar results.