title: Tolerance of Chrysantemum maximum to heavy metals: the potential for its use in the revegetation of tailings heaps.
abstract: To find if ornamental plants are applicable to the remediation of metal-polluted areas, the tolerance of chrysanthemum plants (Chysanthemum maximum) var. Shasta to different metals under hydroponic conditions was studied. Their responses as influenced by the mycorrhizal fungus Glomus mosseae (Nicol. & Gerd.) Gerdemann & Trappe BEG25 on substrates containing mine residues were also investigated. Our results showed that chrysanthemum is a metal-tolerant plant under hydroponic conditions, plants behaving as Pb-excluders, whereas Cd, Cu and Ni were accumulated in roots. Low accumulation in flowers was observed for Cd and Cu but it was concentration-dependent. Ni and Pb were not translocated to flowers. Shoot biomass was not significantly affected by the different rates of mine residue addition for both mycorrhizal and non-mycorrhizal plants. Mycorrhizal plants accumulated less Pb and Cu in both shoots and roots than non-mycorrhizal plants. Chysanthemum could be a prospective plant for revegetation of tailings and the use of inoculation may decrease plant metal accumulation in polluted soils.
authors.affiliation: Colegio de Postgraduados, Programa de Edafología, Carr México-Texcoco, km 36.5, Montecillo, Texcoco estado de México 56230, México. carmeng@colpos.mx
authors.forename: M del Carmen A
authors.initials: Mdel C
authors.lastname: González-Chávez
authors.forename: Rogelio
authors.initials: R
authors.lastname: Carrillo-González
mesh_terms: D031202:Chrysanthemum / Q000187:drug effects* / Q000378:metabolism*; D052918:Environmental Restoration and Remediation; D019216:Metals, Heavy / Q000378:metabolism* / Q000633:toxicity*; D038821:Mycorrhizae; D012989:Soil Pollutants
chemical_list: D019216:Metals, Heavy; D012989:Soil Pollutants