Abstract
Toxic metals can cause toxicity problems in the organisms exposed to
them. Many substances are able to reverse this toxicity. Among the
secondary metabolites of plant origin investigated are flavonoids. To
evaluate the cytoprotective activity, dry mass and possible damage to
the membranes of Lactuca sativa (lettuce) seedlings subjected to
different concentrations of mercury chloride in association with rutin
in suballelopathic concentration (8 mu g/mL) were determined. It was
observed that rutin gives cytoprotection to lettuce seedlings, allowing
greater growth and development of the roots of these seedlings, probably
through the coordination of mercury with the rutin molecule. The
interaction of rutin with mercury chloride was evidenced through
vibrational spectroscopy (Raman and FTIR). Although mercury chloride
causes cytotoxicity in several plant species, its complex with rutin can
mitigate these effects.
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