Figure 4.

Effects of hypergravity on alignment angle of epidermal cell files in hypocotyls of Arabidopsis tubulin mutants. Wild type (WT) and tubulin mutants were grown as in Figure 1, and the angle of cells 10 to 12 to the longitudinal axis was measured using a protractor, as in Figure 3. Values are means ± se (n = 20). *, Mean values with significant differences between 1g and 300g treatments (P < 0.05).