Figure 2.

Cellular root phenotypes of the Brachypodium Bdaux1 mutant. (a) Mature central metaxylem cell length in indicated genotypes. (b) Histological cross‐sections (toluidine blue‐stained) through 2‐d‐old roots of indicated genotypes, taken from the mature part of the root, above the elongation zone. (c) Quantification of cell files in different mature tissue layers of indicated genotypes (2‐d‐old roots). (d) Illustration of root hair development in indicated genotypes (light microscopy, differential interference contrast; composite images). Box plots display second and third quartiles, maximum, minimum and mean (white dot). Statistically significant differences are indicated (Student's t‐test: a, P < 0.001; b, P < 0.03).