Effect of short-term Zn/Pb or long-term multi-metal stress on physiological and morphological parameters of metallicolous and nonmetallicolous Echium vulgare L. populations.
作者： Sławomir Dresler , Magdalena Wójciak-Kosior , Ireneusz Sowa , Grzegorz Stanisławski , Izabela Bany
DOI: 10.1016/J.PLAPHY.2017.04.016
关键词:
摘要: The aim of the study was to determine response metallicolous and nonmetallicolous Echium vulgare L. populations chronic multi-metal (Zn, Pb, Cd) acute Zn (200, 400 μM) Pb (30, 60 μM) stress. Three E. vulgare, one from uncontaminated two metal-contaminated areas, were studied. Two types experiments performed - a short-term hydroponic experiment with or stress long-term manipulative soil use soils sites origin three populations. Growth parameters, such as shoot root fresh weight leaf area, well organic acid accumulation determined. Moreover, concentration selected secondary metabolites antioxidant capacity in exposed excess measured. Both generally achieved higher biomass compared population cultivated under metal hydroponics on metalliferous substrates. Plants contaminated substrate exhibited malate citrate concentrations reference (no stress) plants. It observed that increased allantoin, chlorogenic rosmarinic acids, total phenolics, flavonoids. it shown sequestration roots translocation shoots may play role enhanced tolerance Pb/Zn
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