Figure 10.

Inhibition of primary root growth in response to auxin treatment of wild-type and ggb seedlings. Ws, ggb-1, Col, and ggb-2 seedlings were grown on vertically oriented plates in the presence of various concentrations of α-NAA for 2 d, rotated 90°, grown for two more days, and the length of the root from the bend to the tip was measured. This procedure was followed to rule out differences in germination time. Standard error of the mean is shown for all data points. No significant differences were observed between wild-type and ggb seedlings.