Effects of Cadmium on Phenolic Composition and Antioxidant Activities ofErica andevalensis

[摘要] We evaluated the effects of cadmium on phenolic composition ofErica andevalensis, an endemic protected heather that grows in mine affected soils. Plants cultivated under laboratory-controlled conditions were exposed to acute doses of cadmium to investigate the mechanisms this species possesses to survive in the presence of toxic metals in its natural habitat. Cadmium increased the total levels of phenolics and flavonoids compounds, and the total antioxidant capacity. Cinnamic acid derivatives, epicatechin, and rutin were increased in the presence of cadmium when applied in levels that did not alter the ratio of chlorophylls. Phenolic compounds play an important role in the metabolism ofE. andevalensisto survive in heavy metal polluted soils.

[学科分类] 植物学