Figure 3.

²²Na tracer experiments using O/E and WT plants. (a) Allocation of ²²Na in the shoot of rice plants. The autoradiograph (the upper image) and the picture of the sample (the lower image) were presented. All of the seedlings were composed of sheaths of the 1st leaf (L1), L2, and L3, L3 blade, L4 sheath, L4 blade, L5 sheath, L5 blade, L6, and the basal part of the shoot; (b) Na distribution ratios between the blade and the sheath of 3rd, 4th, and 5th leaves; (c) Sodium uptake rate (nmol/mg root/h) in the nutrient solution containing 10 mM NaCl. The means with standard deviations were presented (n = 3 for Dongjin and n = 4 for the O/E and the sibling WT). Different alphabets in (b) and (c) represent significant differences at the level of 5% (Tukey-Kramer method).