Fig.3

Iron and chlorophyll status in water spinach plants after L-DOPA treatment. A Iron concentration in roots. Fe accumulated in roots following L-DOPA treatments, and this effect was stronger with L-DOPA solubilized in KOH. B The root Fe content was also affected, showing that the increased Fe concentration resulted from an increased Fe quantity taken up by plants rather than roots being shorter. C Chlorophyll concentration in shoots was not affected by L-DOPA. D Chlorophyll content was also not affected. E Iron concentration in shoots and F Iron content of shoots per plant were not affected following L-DOPA treatment. Error bars represent the standard deviation (Student’s t-test. ** P < 0.01 and *** P < 0.001; n = 8)