| Literature DB >> 28965594 |
Agnieszka Kutrowska1, Arleta Małecka2, Aneta Piechalak2, Wacław Masiakowski2, Anetta Hanć3, Danuta Barałkiewicz3, Barbara Andrzejewska4, Janina Zbierska4, Barbara Tomaszewska2.
Abstract
The interaction between lead, copper, cadmium and zinc in their binary combinations was investigated in Indian mustard seedlings (Brassica juncea L. var. Malopolska). Fourteen-days-old seedlings were treated with Pb(NO3)2, CuSO4, CdCl2, ZnSO4 at 50μmol of metal ion concentration and at 25μmol of each metal ion in combinations. Metal combinations were generally more inhibiting in terms of biomass production. This inhibiting effect followed an order: Cu+Cd>Cu+Zn, Cd+Pb>Cu+Pb>Zn+Pb, Cu>Cd>Zn>Zn+Cd>Pb. We observed synergistic and antagonistic effects of metal uptake in binary metal treatments, suggesting metal crosstalk at the plant uptake site. Metal content in plant tissues varied among different combinations. The metal concentrations followed an order of Pb>Cu>Zn>Cd in roots, Zn>Cu>Pb>Cd in the stem and Zn>Cu>Cd>Pb in leaves. Presence of metals altered the distribution of micronutrients (Cu, Zn) in plants: Cu concentration was lowered in roots and leaves and increased in stems; Zn content was increased in plants, with stems having up to 4 or 5 times more Zn than in control plants.Entities:
Keywords: Metal crosstalk; Metal uptake; Phytoextraction; Phytoremediation; Trace elements
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Year: 2017 PMID： 28965594 DOI： 10.1016/j.jtemb.2017.05.007
Source DB: PubMed Journal: J Trace Elem Med Biol ISSN： 0946-672X Impact factor: 3.849