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  • Title: Effect of saponin on the phytoextraction of Pb, Cd and Zn from soil using Italian ryegrass.
    Author: Zhu T, Fu D, Yang F.
    Journal: Bull Environ Contam Toxicol; 2015 Jan; 94(1):129-33. PubMed ID: 25380647.
    Abstract:
    Chemically enhanced phytoextraction has been proposed as an effective approach to remove metals from contaminated soil through the Italian ryegrass (Lolium multiflorum Lam.). The bioconcentration factor (BCF) and translocation factor (TF) are important determinants for phytoextraction of metals. In microcosm experiments, effects of saponin on the uptake of Pb, Zn and Cd by Italian ryegrass were studied. Results of BCF indicated that Italian ryegrass was the most efficient in Zn uptake, followed by Cd and Pb (Zn > Cd > Pb). TF results were identical to the BCF results. In addition, the effect of metal stress on antioxidative enzyme activity was studied. Results revealed that under the metal stress, saponin played an important role in the antioxidative activities of Italian ryegrass.
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