Fig. 4From: Identification and characterization of suppressor mutants of stop1 Effect of excess levels of metal ions on root growth of WT, stop1, and tps mutants. Here, 4-d-old seedlings were transferred to pH 5.6 agar plates supplemented without or with (a) 500 μM ZnSO4, (b) 10 mM LiCl, (c) 150 mM NaCl, or (d) 50 μM CdCl2. Root growth of individual seedling was measured after 5 d treatment and relative root growth (RRG%, i.e., root growth (control)/root growth (treatment) was calculated for each line. Values are mean ± SD, n = 15. Letters represent groups with significant differences (P < 0.01) as determined by LSD testBack to article page