Tolerance of Chrysantemum maximum to heavy metals：The potential for its use in the revegetation of tailings heaps

• Published in: Journal of environmental sciences (China) Vol. 25; no. 2; pp. 367 - 375
• Main Author: Ma.del Carmen A.Gonzlez-Chvez Rogelio Carrillo-Gonzlez
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.02.2013; Colegio de Postgraduados, Programa de Edafología, Carr.México-Texcoco, km 36.5, Montecillo, Texcoco estado de México 56230, México
• Subjects: biomass; cadmium; Chrysanthemum; Chrysanthemum - drug effects; Chrysanthemum - metabolism; copper; Environmental Restoration and Remediation; flowers; Glomus mosseae; heavy metals; hydroponics; land restoration; lead; metal tolerance; Metals, Heavy - metabolism; Metals, Heavy - toxicity; mine residues; mine tailings; Mycorrhizae; mycorrhizal fungi; nickel; ornamental plants; phytostabilization; polluted soils; remediation; roots; shoots; Soil Pollutants; urban remediation; 公差; 地上部生物量; 尾矿堆; 植被恢复; 菌根真菌; 观赏植物; 重金属累积; 非菌根植物; urban remediation; phytostabilization; ornamental plants; mine residues
• ISSN: 1001-0742; 1878-7320
• DOI: 10.1016/S1001-0742(12)60060-6

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.