title: Heavy-metal-contaminated industrial soil: Uptake assessment in native plant species from Brazilian Cerrado.
abstract: Plants of the Cerrado have shown some potential for restoration and/or phytoremediation projects due to their ability to grow in and tolerate acidic soils rich in metals. The aim of this study is to evaluate the tolerance and accumulation of metals (Cd, Cu, Pb, and Zn) in five native tree species of the Brazilian Cerrado (Copaifera langsdorffii, Eugenia dysenterica, Inga laurina, Cedrela fissilis, Handroanthus impetiginosus) subjected to three experiments with contaminated soils obtained from a zinc processing industry (S1, S2, S3) and control soil (S0). The experimental design was completely randomized (factorial 5 × 4 × 3) and conducted in a greenhouse environment during a 90-day experimentation time. The plant species behavior was assessed by visual symptoms of toxicity, tolerance index (TI), translocation factor (TF), and bioaccumulation factor (BF). C. fissilis has performed as a Zn accumulator by the higher BFs obtained in the experiments, equal to 3.72, 0.88, and 0.41 for S1, S2, and S3 respectively. This species had some ability of uptake control as a defense mechanism in high stress conditions with the best behavior for phytoremediation and high tolerance to contamination. With economical and technical benefits, this study may support a preliminary analysis necessary for using native tree species in environmental projects.
authors: a SENAI Institute of Technology in Environment/Center for Innovation and Technology SENAI, Campus CETEC Horto Florestal, Belo Horizonte / MG , Brazil.
authors: Sylvia Therese
authors: ST
authors: Meyer
authors: a SENAI Institute of Technology in Environment/Center for Innovation and Technology SENAI, Campus CETEC Horto Florestal, Belo Horizonte / MG , Brazil.
authors: Samuel Rodrigues
authors: SR
authors: Castro
authors: a SENAI Institute of Technology in Environment/Center for Innovation and Technology SENAI, Campus CETEC Horto Florestal, Belo Horizonte / MG , Brazil.
authors: Marcus Manoel
authors: MM
authors: Fernandes
authors: a SENAI Institute of Technology in Environment/Center for Innovation and Technology SENAI, Campus CETEC Horto Florestal, Belo Horizonte / MG , Brazil.
authors: Aylton Carlos
authors: AC
authors: Soares
authors: b Environmental Department, Votorantim Metals , Três Marias / MG , Brazil.
authors: Guilherme Augusto
authors: GA
authors: de Souza Freitas
authors: b Environmental Department, Votorantim Metals , Três Marias / MG , Brazil.
authors: Edvan
authors: E
authors: Ribeiro
mesh_terms: D001673:Biodegradation, Environmental; D001938:Brazil; D002617:Chemical Industry; D019216:Metals, Heavy / Q000378:metabolism*; D012989:Soil Pollutants / Q000378:metabolism*; D014197:Trees / Q000378:metabolism*; D015032:Zinc
chemical_list: D019216:Metals, Heavy; D012989:Soil Pollutants; D015032:Zinc
keywords: metals accumulation; phytoremediation; species from Cerrado; zinc contamination