Marziyeh Sarmadi; Mahbubeh Irani; Francoise Bernard
Volume 8, Issue 3 , April 2011
Abstract
Phytoremediation is a technology for extracting or inactivating pollutants. In this study, the ability of Glycyrrhiza glabra (var. glabra and var. glandulifera) for phytoremediation, tolerance to cadmium and accumulation of it within plant was investigated. The seeds of G. glabra var. glabra and var. ...
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Phytoremediation is a technology for extracting or inactivating pollutants. In this study, the ability of Glycyrrhiza glabra (var. glabra and var. glandulifera) for phytoremediation, tolerance to cadmium and accumulation of it within plant was investigated. The seeds of G. glabra var. glabra and var. glandulifera were cultured in pots and were watered with distilled water (control) and 100 & 200 μM cadmium chloride solution (treatment). Then the plants were analyzed after 20 days. Cadmium causes a decrease in seed germination. The dry weight of root in both variety and the length of root in var. glandulifera decreases significantly in proportion to the control group. Whereas, the dry and fresh weight of shoot, the length of shoot and the fresh weight of root in both variety and the length of root in var. glabra didn’t change significantly. No metal-toxicity symptoms such as burning and redness of the tissue were observed in Cd treatment. Plants containing more than 100 mg.kg-1 of Cd in dry shoot tissues should be considered as hyperaccumulators of this metal. Cd concentrations in the aerial organs of var. glabraand var. glandulifera were 116.9-147.9 and 116/0-119.5 mg.kg-1 (on a dry weight basis), respectively. We conclude that plantlet of G. glabra is a hyperaccumulator of Cd. G. glabra and so shows promise in the phytoremediation of Cd from polluted sites.
Yahedeh Chaghari; Fatemeh Aghayari; Gholamhossein Ebrahimpour; Hossen Shaker-Bazarnov; Francoise Bernard
Volume 4, Issue 13 , October 2006
Abstract
The Effects of Gas Oil on Germination and Seedling Development of Some Crop SpeciesZahedeh Chaghari M. Sc. Student in Plant Biotechnology and Phsiology, Faculty of Biological Sciences, Shahid Beheshti UniversityFatemeh Aghayari M. Sc. Student in Plant Biotechnology and Phsiology, Faculty of Biological ...
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The Effects of Gas Oil on Germination and Seedling Development of Some Crop SpeciesZahedeh Chaghari M. Sc. Student in Plant Biotechnology and Phsiology, Faculty of Biological Sciences, Shahid Beheshti UniversityFatemeh Aghayari M. Sc. Student in Plant Biotechnology and Phsiology, Faculty of Biological Sciences, Shahid Beheshti University Gholamhossein Ebrahimipour, Ph.D. Assistant Professor, Faculty of Biological Sciences, Shahid Beheshti University Hossein Shaker-Bazarnov, Ph.D. Assistant Professor, Faculty of Biological Sciences, Shahid Beheshti University Françoise Bernard, Ph. D. Associate Professor, Faculty of Biological Sciences, Shahid Beheshti University Abstract The aim of the study was to determine the effect of soil contamination with gas oil (4.5 g/kg soil) on the germination in Trifolium repens L., Triticum lontherium L., Hordeum vulgaris L., Medicago sativa L., Carthamus tintoriusL. and Zea mays L. Delayed seed emergence and reduced percentage germination was observed for the majority of plant species. Germination in M.sativa and T. lontheriumhad reduced significantly after 4 weeks. Fresh weight of root and shoot also reduced for all speices; but dry weight in shoot and root in Z.mays and C. tintorius increased. In other hand was the effects of high soil contamination were investigated on Maize and safflower (9, 13.5 and 22 g/kg soil). In two recent species significantly reduction in fresh weight of shoot and root was observed in 9, 13.5 g/kg soil, dry weight of shoot and root increased in Z. mays, although this increased happened only for root of C. tintorius. Keywords:, growth, hydrocarbon, phytoremediation
