Fig. 4.

Bundling of TALIN–GFP F-actin in the epidermal cells of the primary-root elongation zone in 35S::TALIN–GFP roots of seedling grown under high (2mM) and low (1 µM) Pi conditions (48 HPG). (A–D) TALIN–GFP signal in Col-0 (A, B) or max2-1 mutant (max2-1–28; C, D) grown under high- or low-Pi conditions. Bars, 20 µm. (E) Skewness of F-actin in Col-0 or max2-1–28 mutant seedlings grown under high (white columns) or low (black columns) Pi conditions. (F) Density of F-actin in Col-0 or max2-1–28 mutant seedlings grown under high (white columns) or low (black columns) Pi conditions. Cells (n=20–30) from 10 plants were examined for each of three replicates. Different lower-case letters above the bars indicate statistically significant differences between means by a Student’s t-test (P≤0.05).