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. 2018 Sep;228:158–165. doi: 10.1016/j.jplph.2018.06.005

Fig. 1.

Fig. 1

Schematic time line showing experimental treatments for Arabidopsis thaliana grown in nutrient solution with varying copper (Cu) concentrations up to 72 h or 15 days (15d). During the first 30 days of the experiment, plants received 0.16 μM Cu as a basal condition.