Fig. 6.

Epidermal patterning mutants show deviations in gravitropic responses. (A) After 16h gravistimulation (135°) roots were assigned to four sectors of 15° on a gravitropism diagram. The length of the bars in the diagram represents the percentage of seedlings assigned to the respective sector. wer myb23 mutants show a slightly delayed and cpc try mutants an enhanced response to gravity. (B) Kinetics of the gravitropic response after 90° gravistimulation. The angle of every seedling was measured with respect to the initial (old) gravity vector after 2, 4, 8, 12, and 24h. The data were statistically evaluated using Student’s t test. *P <0.05, **P <0.01; n=12 for (A) and n=8–12 individual plants for (B).