Fig. 2

Number of ARs in the hypocotyls of wild-type (Col-0), lbd16, lbd18, aux1 and lax3 single and multiple mutants. ARs were measured in seedlings that were grown on vertical plates for 3 d in darkness, until their hypocotyls were 6 mm long, and then transferred to the light for 7 d. Data are presented as means ± SE, determined from at least 90 seedlings. Different letters indicate a significant difference determined by one-way ANOVA followed by Duncan’s post hoc test (P < 0.05)