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Artículo

Metal dynamics and tolerance of Typha domingensis exposed to high concentrations of Cr, Ni and Zn

Mufarrege, María de Las MercedesIcon ; Hadad, Hernán RicardoIcon ; Di Luca, Gisela AlfonsinaIcon ; Maine, Maria AlejandraIcon
Fecha de publicación: 05/2014
Editorial: Elsevier
Revista: Ecotoxicology and Environmental Safety
ISSN: 0147-6513
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Meteorología y Ciencias Atmosféricas

Resumen

T. domingensis was exposed to a 100 mg L-1 Cr + 100 mg L-1 Ni + 100 mg L-1 Zn solution. Metal tolerance and metal accumulation in plant tissues and sediment were studied over time. Although removal rates were different, the three metals were efficiently removed from water. Leaf and root tissues showed high metal concentration. However, the sediment showed the highest accumulation. During the first hours of contact, metals were not only accumulated by sediment and roots but they were also taken up by the leaves in direct contact with the solution. Over time, metals were translocated from roots to leaves and vice versa. Metals caused growth inhibition and a decrease in chlorophyll concentration, and affected anatomical parameters. Despite these sub-lethal effects, T. domingensis demonstrated that it could accumulate Cr, Ni and Zn efficiently and survive an accidental dump of high concentrations of contaminants in systems such as natural and constructed wetlands.
Palabras clave: Contaminants , Emergent Macrophytes , Phytoxicity , Wetlands
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)
Identificadores
URI: http://hdl.handle.net/11336/31258
URL: http://www.sciencedirect.com/science/article/pii/S0147651314001481
DOI: http://dx.doi.org/10.1016/j.ecoenv.2014.04.008
Colecciones
Articulos(CCT - SANTA FE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - SANTA FE
Citación
Mufarrege, María de Las Mercedes; Hadad, Hernán Ricardo; Di Luca, Gisela Alfonsina; Maine, Maria Alejandra; Metal dynamics and tolerance of Typha domingensis exposed to high concentrations of Cr, Ni and Zn; Elsevier; Ecotoxicology and Environmental Safety; 105; 5-2014; 90-96
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