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Phytoextraction du cuivre par le radis (Raphanus sativus)

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dc.contributor.author HAMAD, Hanane
dc.date.accessioned 2018-11-26T10:47:18Z
dc.date.available 2018-11-26T10:47:18Z
dc.date.issued 2017
dc.identifier.uri http://e-biblio.univ-mosta.dz/handle/123456789/2481
dc.description.abstract Copper is an essential trace element for the development of plants due to its importance role in the physiology of plants. But it is also a toxic heavy metal with high concentration. Some species grown on sites with high copper concentrations have developed protective mechanisms that will allow them to tolerate this excess metal. The aim of this work is to study the abilities of radish (Raphanus sativus) to decontaminate soils contaminated by copper. The study focuses on the exposure of radish plants (Raphanus sayivus) to copper at different doses (0, 400, 800, 1000 ppm) for two weeks just after one week of germination and five weeks of culture. Physiological analysis of exposure to copper showed inhibition of foliar and root elongation masses of fresh and dry matter of different organs of radish plants compared to controls and a decrease in foliar chlorophyll pigment content (chlorophyll a,b and total) relative to the controls. Water analysis of exposure to copper showed an increase in the relative water content (RWC) of radish plants compared to controls. While transpiration water loss (RWL) of radish plants decreases compared to controls. Biochemical analysis showed a rise in tatol protein levels of radish plants exposed to copper et different concentrations, compared to controls. Thes modified physiological, hydric and biochemical parameters suggest that copper induces stress in radish (Raphanus sayivus) during it growthcompared to controls, but radish has protective mechanisms that allow it to tolerate this exess in copper. en_US
dc.language.iso fr en_US
dc.subject Cuivre en_US
dc.subject Radis en_US
dc.subject phytoremédiation en_US
dc.subject paramètres morphophysiologiques en_US
dc.subject paramètres biochimiques en_US
dc.subject paramètres hydriques. en_US
dc.subject النحاس en_US
dc.subject الفجل en_US
dc.subject إعدادات بيوكيميائية en_US
dc.subject إعدادت معدنية en_US
dc.subject copper en_US
dc.subject radish en_US
dc.subject phytoremediation en_US
dc.subject morphophysiological parameters en_US
dc.subject biochemical parameters en_US
dc.subject water parameters. en_US
dc.title Phytoextraction du cuivre par le radis (Raphanus sativus) en_US
dc.type Other en_US

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