Fig. 7

Plant concentration of Indole Acetic Acid (IAA) on wheat plants under Fe deficiency and treated with IAA inhibitors. (a) IAA concentration in shoots of Fe-sufficient (+Fe), Fe-starved (-Fe), and Fe-starved plants treated with PCIB (200 μM) or TIBA (50 μM); in pmol per g of root fresh weight. Harvests were performed at 4, 72 and 96 h of treatment, which corresponded to the three columns per treatment. Average of 3 replicates with 20 plants each. p < 0.05 (Tukey LSD test). b IAA concentration in roots of Fe-sufficient (+Fe), Fe-starved (-Fe), and Fe-starved plants treated with PCIB (200 μM) or TIBA (50 μM); in pmol per g of root fresh weight. Harvests were performed at 4, 72 and 96 h of treatment, which corresponded to the three columns per treatment. Average of 3 replicates with 20 plants each. p < 0.05 (Tukey HSD test)