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Cd uptake in wild type and SaPCR2-overexpressed transgenic Arabidopsis thaliana lines (OX1 and OX2). The plants were cultured on 1/2 MS solid medium with 15 and 30 μM CdCl2 for 7 days, every 20 plants for one treatment, each treatment repeated three times. Error bars are ± SE of n = 3. Different letters indicate significant differences between genotypes (p < 0.05).
