Figure 1.

Leaves of nakr1-1 Contain Higher Na⁺, K⁺, and Rb⁺ Than Col-0.

Plant growth conditions and ICP-MS analysis were as described by Lahner et al. (2003). Rosette leaves were sampled after 5 to 6 weeks of growth. Differences in content of the mutant compared with Col-0 for each element analyzed are plotted as z-values (sd) for individual plants. The zero line indicates the average for Col-0 grown in the same tray.