Accumulation of heavy metals in Silphium perfoliatum L. plants grown in a mining-contaminated soil

What is it about?

A greenhouse experiment was conducted to evaluate the phytoremediation capacity of Silphium perfoliatum L. plants, in the vegetative growth stages, on a soil polluted with Cu, Zn, Cr and Pb, taken from a former mining area compared to an unpolluted soil

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Why is it important?

Plants grown on polluted soil accumulated a significantly higher amount of Cu by 189%, and in Zn by 37.95% compared to Us. The Cr and Pb content of the plants recorded a progressive and significant increase from one stage to another, more intense between 3 and 5 leaves. Therefore, the results confirm the hypothesis that the S. perfoliatum plants have a good absorption, accumulation and translocation capacity of heavy metals and can be used for cleaning up of contaminated sites.