Figure 6

Long-term shoot and whole-plant ¹⁰⁹Cd accumulation in durum wheat seedlings. Time-course of ¹⁰⁹Cd translocation to shoots (A) and Cd accumulation per plant (B) of high (TL-H) and low (TL-L) Cd-accumulating isolines of durum wheat. Roots of 6-d old seedlings were exposed for up to 60 h (solutions changed every 12 h) in complete nutrient solution containing 50 pM ¹⁰⁹Cd and 0.5 μM ⁶⁵Zn, followed by a 30 min (2°C) desorption in non-radiolabelled nutrient solution containing 50 μM DTPA. Means and standard errors of 7 replicates (3 plants per replicate) are plotted.