Figure 3.

Impairment of lateral root elongation in the mutants is transient and specific to the embryonic roots. A, Lateral roots formed at the primary root of WT (left) and slr1 (right) after 25 d. B, Lateral roots formed at the crown root of WT (left) and slr1 (right) after 25 d. C, Lateral roots formed at the primary root of WT (left) and slr2 (right) after 27 d. D, Lateral roots formed at the crown root of WT (left) and slr2 (right) after 27 d. Plants were grown in paper rolls for 12 d and then incubated further in a hydroponic culture system. Bars indicate 2 cm.