title: Mercury uptake by Silene vulgaris grown on contaminated spiked soils.
abstract: Mercury is a highly toxic pollutant with expensive clean up, because of its accumulative and persistent character in the biota. The objective of this work was to evaluate the effectiveness of Silene vulgaris, facultative metallophyte which have populations on both non-contaminated and metalliferous soils, to uptake Hg from artificially polluted soils. A pot experiment was carried out in a rain shelter for a full growth period. Two soils (C pH = 8.55 O.M. 0.63% and A pH = 7.07 O.M. 0.16%) were used, previously contaminated with Hg as HgCl(2) (0.6 and 5.5 mg Hg kg(-1) soil). Plants grew healthy and showed good appearance throughout the study without significantly decreasing biomass production. Mercury uptake by plants increased with the mercury concentration found in both soils. Differences were statistically significant between high dosage and untreated soil. The fact that S. vulgaris retains more mercury in root than in shoot and also, the well known effectiveness of these plants in the recovering of contaminated soils makes S. vulgaris a good candidate to phytostabilization technologies.
authors: Dpto. de Investigación Agroambiental, Instituto Madrileño de Investigación y Desarrollo Rural, Agrario y Alimentación, IMIDRA, Finca El Encín, A-II Km, 38.200, 28800, Alcalá de Henares, Madrid, Spain.
authors: Araceli
authors: A
authors: Pérez-Sanz
authors: Rocío
authors: R
authors: Millán
authors: M José
authors: MJ
authors: Sierra
authors: Remedios
authors: R
authors: Alarcón
authors: Pilar
authors: P
authors: García
authors: Mar
authors: M
authors: Gil-Díaz
authors: Saúl
authors: S
authors: Vazquez
authors: M Carmen
authors: MC
authors: Lobo
mesh_terms: D001673:Biodegradation, Environmental; D018533:Biomass; D008628:Mercury / Q000493:pharmacokinetics*; D018517:Plant Roots / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism; D029751:Silene / Q000254:growth & development* / Q000378:metabolism*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000493:pharmacokinetics*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D008628:Mercury