Figure 5.

Effect of P availability on auxin-regulated gene expression. Ten-hour GUS staining of DR5:uidA primary roots and LRP at various stages of development in wild-type seedlings grown for 10 d in medium with high (A–F) or low (G–L) P content. Ten-hour GUS staining of DR5:uidA primary roots and LRP at various stages of development in lpr1-2 seedlings grown for 10 d in medium with high (M–P) or low (Q–U) P content. Photographs are representative individuals of at least 20 plants stained. Scale bar = 100 μm.