Accumulation of zinc, cadmium, and lead in four populations of Sedum alfredii growing on lead/zinc mine spoils

Journal of Integrative Plant Biology
Dong-Mei DengBin Liao

Abstract

Sedum alfredii Hance is a newly reported zinc (Zn) and cadmium (Cd) hyperaccumulator native to China. In this study, four populations of S. alfredii were collected from Yejiwei (YJW), Jinchuantang (JCT) and Qiaokou (QK) lead (Pb)/Zn mines located in Hunan Province as well as Quzhou (QZ) Pb/Zn mine located in Zhejiang Province for exploring the intraspecies difference of this plant in metal accumulation. Although they grew in the Pb/Zn spoils with relatively similar levels of Zn, Cd and Pb, remarkable differences among the four populations in tissue heavy metal concentrations were observed. The shoot Zn concentration of QZ population (11,116 mg/kg) was highest and nearly five times higher than that of the JCT population (1930 mg/kg). Furthermore, the shoot Cd concentration observed in the QZ population (1090 mg/kg) was also highest and 144 times higher than that found in the JCT population (7.5 mg/kg). As for Pb concentrations in the shoot of different populations, a fourfold difference between the highest and the lowest was also found. Such difference on metal accumulation was population-specific and may be significantly explained by differences in the soil properties such as pH, organic matter (OM), and electrical conductivity...Continue Reading

Citations

Aug 2, 2012·New Biotechnology·Meyer Claire-Lise, Verbruggen Nathalie
Jan 14, 2011·Journal of Hazardous Materials·Thi Hoang Ha NguyenTrong Nhuan Mai
Feb 11, 2020·Environmental Geochemistry and Health·Vishnu RajputSvetlana Sushkova
Nov 17, 2016·Environmental Science and Pollution Research International·Zhenling HuangChuanqin Xia
May 4, 2020·Ecotoxicology and Environmental Safety·Weiqin XingLiping Li

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