Supplementary Data

Files in this Data Supplement:

• Supplemental Figure S1 - Auxin transport inhibitors causing root agravitropism in maize. (A) Roots in control plants show normal gravitropism. Addition of (B) 40 µM N-1-naphthylphthalamic acid, (C) 80 µM hydroxyfluorene-9-carboxylic acid and (D) 80 µM 2,3,5-triiodobenzoic acid cause roots to grow agravitropically.