Figure 1.

RMD and its suppressor SOR8 participate in the control of root circumnutation. (A) Root phenotypes of 7-day-old wild type (WT), rmd, rmd sor8, and sor8 lines grown in water. Each root tip is magnified on the right. Scale bars, 2 cm (original image); 0.5 cm (magnified image). (B) Movement during primary root circumnutation in four different genotypes at 20 min intervals over 3 h growth (3-day-old plants). Scale bar, 1 cm. (C) Cell morphology of four lines visualized by propidium iodide staining. Scale bar, 50 μm. (D) Cell lengths of root epidermis cells on the outer and inner sides of the bent-root region. Data are means ± s.d. of three biological replicates (n = 21 cells) for each genotype. Different letters represent significant differences determined by ordinary one-way ANOVA with Tukey’s multiple comparisons test, p < 0.05.