title: Metal dynamics and tolerance of Typha domingensis exposed to high concentrations of Cr, Ni and Zn.
abstract: Typha domingensis was exposed to a 100mgL(-1) Cr+100mgL(-1) Ni+100mgL(-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.
authors.affiliation: Química Analítica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santiago del Estero 2829, 3000 Santa Fe, Argentina. Electronic address: mmufarrege@fiq.unl.edu.ar.
authors.forename: M M
authors.initials: MM
authors.lastname: Mufarrege
authors.affiliation: Química Analítica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santiago del Estero 2829, 3000 Santa Fe, Argentina; Facultad de Humanidades y Ciencias (UNL), Paraje El Pozo, 3000 Santa Fe, Argentina.
authors.forename: H R
authors.initials: HR
authors.lastname: Hadad
authors.affiliation: Química Analítica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santiago del Estero 2829, 3000 Santa Fe, Argentina.
authors.forename: G A
authors.initials: GA
authors.lastname: Di Luca
authors.affiliation: Química Analítica, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Santiago del Estero 2829, 3000 Santa Fe, Argentina.
authors.forename: M A
authors.initials: MA
authors.lastname: Maine
mesh_terms: D019015:Geologic Sediments / Q000737:chemistry; D019216:Metals, Heavy / Q000032:analysis / Q000378:metabolism* / Q000633:toxicity*; D018515:Plant Leaves / Q000033:anatomy & histology / Q000737:chemistry / Q000187:drug effects / Q000378:metabolism; D018517:Plant Roots / Q000737:chemistry / Q000187:drug effects / Q000378:metabolism; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism / Q000633:toxicity; D032401:Typhaceae / Q000737:chemistry / Q000187:drug effects* / Q000378:metabolism*
chemical_list: D019216:Metals, Heavy; D012989:Soil Pollutants
keywords: Contaminants; Emergent macrophytes; Phytoxicity; Wetlands