Lead uptake,toxicity and accumulation in Phaseolus vulgaris plants |
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Authors: | A. Piechalak A. Malecka D. Barałkiewicz B. Tomaszewska |
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Affiliation: | (1) Department of Biochemistry, A. Mickiewicz University, Umultowska 89, PL-61614 Poznan, Poland;(2) Department of Spectroscopy Analysis of Trace Elements, A. Mickiewicz University, PL-60780 Poznan, Poland |
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Abstract: | The effects of lead were investigated in bean plants (Phaseolus vulgaris L. cv. Zlota Saxa) grown hydroponically in nutrient solution and exposed to Pb(NO3)2 (0.1, 0.5, 1 mM) with or without equimolar concentrations of chelator ethylenediaminetetraacetic acid (EDTA). The roots treated only with Pb(NO3)2 accumulated up to 25 g(Pb) kg−1(d.m.), during 4-d exposure. However, in bean plants exposed to 0.5 mM Pb + 0.5 mM EDTA or 1 mM Pb + 1 mM EDTA 2.5 times less Pb was determined. In bean plants treated only with Pb, less than 6 % of total lead accumulated was transported to the aboveground parts, while in the case of plants grown with Pb + EDTA, around 50 % of total Pb was transported to the shoots. |
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Keywords: | KeywordHeading" >Additional bean EDTA hydroponics lead translocation |
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