Figure 2.

Imaging and analysis of¹⁰⁷Cd transport into shoots of six rice cultivars (vegetative stage). (a) Photograph of test plants. The large dotted rectangle indicates the FOV of PETIS. (b) Serial images of Cd movement (0-36 h). (c) Time course of Cd amounts in ROI-1 (shoot bases). (d) Time course of Cd amounts in ROI-2 (leaf sheaths and leaf blades). The relevant portion of each ROI is surrounded by red lines in the black and white photograph. Cd in ROI-1(pmol) and Cd in ROI-2(pmol) in Figure 2 indicate the sums of radioactive¹⁰⁷Cd and nonradioactive Cd.