title: Behavior of Trifolium repens and Lolium perenne growing in a heavy metal contaminated field: Plant metal concentration and phytotoxicity.
abstract: The use of a vegetation cover for the management of heavy metal contaminated soils needs prior investigations on the plant species the best sustainable. In this work, behaviors of Trifolium repens and Lolium perenne, growing in a metal-polluted field located near a closed lead smelter, were investigated through Cd, Pb and Zn-plant metal concentrations and their phytotoxicity. In these plant species, metals were preferentially accumulated in roots than in shoots, as follow: Cd>Zn>Pb. Plant exposure to such metals induced oxidative stress in the considered organs as revealed by the variations in malondialdehyde levels and superoxide dismutase activities. These oxidative changes were closely related to metal levels, plant species and organs. Accordingly, L. perenne seemed to be more affected by metal-induced oxidative stress than T. repens. Taken together, these findings allow us to conclude that both the plant species could be suitable for the phytomanagement of metal-polluted soils.
authors.affiliation: Laboratoire Sols et Environnement, Institut Supérieur d'Agriculture, Lille Cedex, France.
authors.forename: G
authors.initials: G
authors.lastname: Bidar
authors.forename: G
authors.initials: G
authors.lastname: Garçon
authors.forename: C
authors.initials: C
authors.lastname: Pruvot
authors.forename: D
authors.initials: D
authors.lastname: Dewaele
authors.forename: F
authors.initials: F
authors.lastname: Cazier
authors.forename: F
authors.initials: F
authors.lastname: Douay
authors.forename: P
authors.initials: P
authors.lastname: Shirali
mesh_terms: D001673:Biodegradation, Environmental; D002104:Cadmium / Q000032:analysis / Q000633:toxicity; D004781:Environmental Exposure / Q000009:adverse effects; D004784:Environmental Monitoring / Q000379:methods; D007854:Lead / Q000032:analysis / Q000633:toxicity; D008129:Lolium / Q000737:chemistry* / Q000201:enzymology; D008315:Malondialdehyde / Q000378:metabolism; D019216:Metals, Heavy / Q000032:analysis / Q000633:toxicity*; D018384:Oxidative Stress / Q000502:physiology; D018517:Plant Roots / Q000737:chemistry / Q000201:enzymology; D018520:Plant Shoots / Q000737:chemistry / Q000201:enzymology; D012987:Soil / Q000032:analysis; D012989:Soil Pollutants / Q000032:analysis / Q000633:toxicity*; D013482:Superoxide Dismutase / Q000378:metabolism; D029921:Trifolium / Q000737:chemistry* / Q000201:enzymology; D015032:Zinc / Q000032:analysis / Q000633:toxicity
chemical_list: D019216:Metals, Heavy; D012987:Soil; D012989:Soil Pollutants; D002104:Cadmium; D007854:Lead; D008315:Malondialdehyde; D013482:Superoxide Dismutase; D015032:Zinc