Fig. 3.

Effect of hypoxic stress on K⁺ distribution in the root elongation and mature zone in Arabidopsis wild type (Col-0), gork1-1, and rbohD. Representative images of the root elongation and mature zone in Col-0 (A), gork1-1 (B), and rbohD (C) under control and hypoxic treatment are shown. Ten-day-old seedlings was stained with K⁺ indicator (Asante Potassium Green-2) and visualized with a confocal imaging system. One out of nine typical images is shown for each line. Scale bar=50 µm.