Figure 5. Reduction in cell length is not sufficient to account for increased hair density under Pi-deficient conditions.

A, Distributions of epidermal cell lengths for wild-type, cpc, scm and wer mutant plants grown under control and Pi-deficient conditions. B, Root hair capture probability distributions for plants grown under control conditions (+Pi) compared with normalized capture probabilities for plants grown under Pi-deficient conditions (|−Pi|, dark blue box plots). The un-normalized capture probabilities for plants grown under Pi-deficient conditions are shown in light blue for comparison.