Role of Ascorbate in the Regulation of the Arabidopsis thaliana Root Growth by Phosphate Availability

Figure 2

Effect of phosphate availability and ascorbate concentration on Arabidopsis root architecture. Wild-type (Col 0) seedlings were grown in the presence of the low (1 μM) P concentration (a) or on the same medium supplemented with 300 μM ASC (b) or 500 μM ASC (c). vtc1 seedlings were grown in the presence of the low (1 μM) P concentration (d) or on the same medium supplemented with 300 μM ASC (e). Wild-type Col 0 seedlings were grown in the presence of high (1 mM) P (f) or on the same medium supplemented with 300 μM ASC (g) or 500 μM ASC (h). vtc1 seedlings were grown in the presence of high (1 mM) P (i) or on the same medium supplemented with 300 μM ASC (j). Seedlings were photographed 12 days after germination. Bar = 1 cm.