Figure 5.

Partitioning of sulfur in shoots and roots of Flaveria species. Total sulfur, sulfate, Cys, and GSH were determined in shoots and roots of 23-d-old seedlings of five Flaveria species grown in low sulfate (30 µm sulfate; S30) or adequate sulfate (750 µm sulfate; S750) for 16 d. Sulfate, Cys, and GSH concentrations were calculated relative to total sulfur concentrations. Data are presented as mean % of total sulfur and se, n = 4. Different letters represent values significantly different at P < 0.05 (Student´s T-test).