Figure 6

Etiolated hypocotyl length upon heavy metal and trace element exposures. (a) On different concentrations of Ni²⁺. Represented are means +/− SEM of up to 60 seedlings from three independent experiments. Stars indicate significant difference according to Student’s t-test with *p < 0.05 and (n.s.) p > 0.05 to wildtype, in gray for mds^4GG, mds^12NN and mds^11aZ1, in black for mds^11aZ3, (b) on media supplemented with Cd²⁺, Cu²⁺, Zn²⁺ and Pb²⁺. Center lines show medians of up to 60 seedlings from three independent experiments; box limits indicate the 25^th and 75^th percentiles as determined by R software; whiskers extend 1.5 times the interquartile range from the 25^th and 75^th percentiles, outliers are represented by dots.