3.5. Effects of lead on soluble protein content
In wheat, lead treatment shows a biphasic effect on soluble
protein concentration (Fig. 3A): protein concentrations increase
for low lead concentrations and then decrease back to
control values at 15 mM Pb. A peak is observed for leaves with
3 mM Pb (190% of control) and for roots with 1.5 mM Pb
(330% of control). A similar increase was previously observed
with young wheat seedlings (Lamhamdi et al., 2011). In spinach,
soluble protein concentrations increase continuously for