Figure 5.

Inflorescence stems of transgenic plants show a reduced gravitropic bending. A, Gravitropic bending was measured in inflorescence stems of 6-week-old Arabidopsis plants. Plants were first placed upright in the dark for 1 to 2 h and then placed horizontally in the dark. Bending was measured after 45 min. Data plotted are the average of five independent experiments ±se (n = 25/experiment). B, Gravitropic bending of the inflorescence stems was monitored every 15 min for 2 h. The graph shows the average of six representative wild-type and transgenic inflorescence stems ±se. The experiment was repeated twice with similar results.