[Effects of EDTA on lead accumulation in Tagetes patula and Salvia spendens].
Pot experiments were conducted to investigate the effects of EDTA on the Pb availability in rhizospheric soil and the Pb accumulation in Tagetes patula and Salvia spendens. The results showed that 7 days after applying EDTA (3.0 mmol x kg(-1)) into soil, the concentration of ammonium acetate (1 mol x L(-1)) -extracted Pb in rhizospheric soil increased significantly (P < 0.01), and the Pb content in T. patula and S. spendens leaves reached to 2415.88 and 1083.68 mg x kg(-1), being 61.36 and 5.37 times of the control, respectively. The Pb content also had a marked increase in T. patula and S. spendens stems, but had a slight decrease in their roots.
Shenyang Key Laboratory of Environmental Engineering, Shenyang University, Shenyang 110044, China. liyushuang@syu.edu.cn
Yu-Shuang
YS
Li
Li-Na
LN
Sun
Tie-Heng
TH
Sun
D004492:Edetic Acid / Q000494:pharmacology*; D007854:Lead / Q000378:metabolism*; D018515:Plant Leaves / Q000187:drug effects / Q000378:metabolism; D018517:Plant Roots / Q000187:drug effects / Q000378:metabolism; D027544:Salvia / Q000187:drug effects / Q000378:metabolism*; D012987:Soil / Q000032:analysis; D012989:Soil Pollutants / Q000378:metabolism; D031686:Tagetes / Q000187:drug effects / Q000378:metabolism*
D012987:Soil; D012989:Soil Pollutants; D007854:Lead; D004492:Edetic Acid