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Fig. 3 | BMC Plant Biology

Fig. 3

From: Toxicity responses of Cu and Cd: the involvement of miRNAs and the transcription factor SPL7

Fig. 3

Root growth parameters of A. thaliana wildtype and spl7 knockout plants. Primary root growth after transfer a is expressed relative to the control for each genotype and total lateral root length b is expressed per unit primary root length. Seven-days-old plants were exposed for another 7 days to 1, 3 and 10 μM CuSO4 or 0.5, 1.5 and 5 μM CdSO4 or further grown under control conditions. Data are given as the mean ± S.E. of at least 11 biological independent replicates. Significant differences (P < 0.05) after two-way ANOVA test (primary root growth) and Tukey correction or after non-parametrical ANOVA test (Kruskal-Wallis; lateral root length) and correction with pairwise Wilcoxon rank sum test are indicated as following: treatment difference with an asterisk (*) and genotype difference with connection lines

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