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Senecio bonariensis Hook.&*** arsenic phytoextractor from water in laboratory and field trials

Emerging Contaminants 2019年第1期5卷 15-22页

作者： Vanesa Perez Cuadra Viviana Cambi martín esposito María Gabriela Sica MagalíVerolo Amira Siniscalchi Elisa Rosalia Parodi Depto.Biología Bioquímica y Farmacia.Universidad Nacional del Sur(UNS)San Juan 670C.P.8000Bahía BlancaProv.Buenos AiresArgentina CCT BB-InBIOSUR UnS-COnICET San Juan 671C.P.8000Bahía BlancaProv.Buenos AiresArgentina Departamento de Agronomía(UnS) San Andres 800C.P.8000Bahía BlancaProv.Buenos AiresArgentina CCT BB-PLAPIQUI-UnS-COnICET Camino La Carrindanga km 7C.P.8000Bahía BlancaProv.Buenos AiresArgentina CCT BB-IADO-UnS-COnICET Camino La Carrindanga km 7C.P.8000Bahía BlancaProv.Buenos AiresArgentina

The use of plant species to cleanse groundwater with excessive concentrations of arsenic(As)derived from contact with weathered materials has become a valuable option to treat *** aim of this work was to analyze the bioaccumulation capacity of As of Senecio bonariensis(Asteraceae)through controlled laboratory tests and uncontrolled trials in the field in order to generate a low cost method applicable in rural areas that do not have systems of water *** collected from the natural environment were arranged in hydroponic crops under controlled and uncontrolled conditions,in the first case with increasing concentrations of As for 45 days,and in the second,with a constant concentration of As for a period in a range between 45 and 90 *** plants were processed and dried for the measurement of *** both tests,in all the samples there was a noticeable accumulation of As,generally greater in roots than in *** controlled conditions the plants accumulated more As in relation to greater concentration of this element in the *** all the trials a high bioaccumulation of As was found,which turns the plant into a *** to the ability of *** to accumulate As,and even more because of the great biomass produced by this species,it becomes an excellent one to be used for the remediation of arsenical waters.

关键词： Senecio bonariensis Phytoremediation Arsenic Underground water

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