INSIGHTS INTO SOME PHYSIOLOGICAL AND BIOCHEMICAL RESPONSES OFPOPULUS ALBA AND POPULUS NIGRA TO LEAD CONTAMINATION

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ETEMADI ELHAM; FAYYAZ PAYAM; ZOLFAGHARI ROGHAYEH

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Journal of Plant Biological Sciences Year:2016 | Volume:8 | Issue:30 Page(s): 1-14

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Title

INSIGHTS INTO SOME PHYSIOLOGICAL AND BIOCHEMICAL RESPONSES OFPOPULUS ALBA AND POPULUS NIGRA TO LEAD CONTAMINATION

Author(s)

ETEMADI ELHAM | FAYYAZ PAYAM | ZOLFAGHARI ROGHAYEH | Issue Writer Certificate

Keywords

HEAVY METALSQ2

POPLARQ3

PHYTOREMEDIATIONQ2

RELATIVE WATER CONTENTQ1

MEMBRANE PERMEABILITYQ1

Abstract

The effects of lead (PbCl2) increment, under hydroponic conditions up to 15, 45 and 90 mg/l in presence of EDTA, on some physiological and biochemical traits of one year old saplings of P. nigra and P. alba, were investigated. Six weeks after establishing in target concentration, the amount of lead, biomass, water, soluble sugars, proline, electrolyte leakage, malondialdehyde, and pigments were assessed in different organs. The results revealed that with increasing lead concentration in culture medium in the studied period, the amount of lead in saplings increased, but no effect was observed on their biomass. In both species the magnitude of lead accumulation in root was higher than leaf. P. nigra had more water and less soluble sugars than P. alba. The concentration of soluble sugars increased up to 1.5 times with lead increment in both species, but proline content increased only in P. nigra up to 2 times and remained constant in P. alba. Elevation of electrolyte leakage in saplings of P. nigra in excess lead treatment was accompanied by no change in malondialdehyde content. Concentrations of pigments were not affected by lead, and only the ratio of chlorophyll a to b in P. nigra increased in high lead concentration. In general both species accumulated high extent of lead in their organs. But it seems that P. nigra, at least with respect of enhancing plasma MEMBRANE PERMEABILITY, increasing proline and the ratio of chlorophyll a to b, was more sensitive to this toxic metal in compare with P. alba.

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APA: Copy

ETEMADI, ELHAM, FAYYAZ, PAYAM, & ZOLFAGHARI, ROGHAYEH. (2016). INSIGHTS INTO SOME PHYSIOLOGICAL AND BIOCHEMICAL RESPONSES OFPOPULUS ALBA AND POPULUS NIGRA TO LEAD CONTAMINATION. IRANIAN JOURNAL OF PLANT BIOLOGY, 8(30 ), 1-14. SID. https://sid.ir/paper/160147/en

Vancouver: Copy

ETEMADI ELHAM, FAYYAZ PAYAM, ZOLFAGHARI ROGHAYEH. INSIGHTS INTO SOME PHYSIOLOGICAL AND BIOCHEMICAL RESPONSES OFPOPULUS ALBA AND POPULUS NIGRA TO LEAD CONTAMINATION. IRANIAN JOURNAL OF PLANT BIOLOGY[Internet]. 2016;8(30 ):1-14. Available from: https://sid.ir/paper/160147/en

IEEE: Copy

ELHAM ETEMADI, PAYAM FAYYAZ, and ROGHAYEH ZOLFAGHARI, “INSIGHTS INTO SOME PHYSIOLOGICAL AND BIOCHEMICAL RESPONSES OFPOPULUS ALBA AND POPULUS NIGRA TO LEAD CONTAMINATION,” IRANIAN JOURNAL OF PLANT BIOLOGY, vol. 8, no. 30 , pp. 1–14, 2016, [Online]. Available: https://sid.ir/paper/160147/en

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