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2 results on '"MTE mobility"'

1. Nature of fly ash amendments differently influences oxidative stress alleviation in four forest tree species and metal trace element phytostabilization in aged contaminated soil: A long-term field experiment.

Author

Labidi, Sonia, Firmin, Stéphane, Verdin, Anthony, Bidar, Géraldine, Laruelle, Frédéric, Douay, Francis, Shirali, Pirouz, Fontaine, Joël, and Lounès-Hadj Sahraoui, Anissa

Subjects
FLY ash -- Environmental aspects, PLANTS, OXIDATIVE stress, PHYTOREMEDIATION, SOIL pollution, CADMIUM poisoning
Abstract

Aided phytostabilization using coal fly ashes (CFAs) is an interesting technique to clean-up polluted soils and valorizing industrial wastes. In this context, our work aims to study the effect of two CFAs: silico-aluminous (CFA1) and sulfo-calcic (CFA2) ones, 10 years after their addition, on the phytostabilization of a highly Cd (cadmium), Pb (lead) and Zn (zinc) contaminated agricultural soil, with four forest tree species: Robinia pseudoacacia , Alnus glutinosa , Acer pseudoplatanus and Salix alba . To assess the effect of CFAs on trees, leaf fatty acid composition, malondialdehyde (MDA), oxidized and reduced glutathione contents ratio (GSSG: GSH), 8-hydroxy-2′-deoxyguanosine (8-OHdG), Peroxidase (PO) and Superoxide dismutase (SOD) activities were examined. Our results showed that CFA amendments decreased the CaCl 2- extractable fraction of Cd and Zn from the soil. However, no significant effect was observed on metal trace element (MTE) concentrations in leaves. Fatty acid percentages were only affected by the addition of sulfo-calcic CFA. The most affected species were A. glutinosa and R. pseudoacacia in which C16:0, C18:0 and C18:2 percentages increased significantly whereas the C18:3 decreased. The addition of sulfo-calcic CFA induced the antioxidant systems response in tree leaves. An increase of SOD and POD activities in leaves of trees planted on the CFA2-amended plot was recorded. Conversely, silico-aluminous CFA generated a reduction of lipid and DNA oxidation associated with the absence or low induction of anti-oxidative processes. Our study evidenced oxidative stress alleviation in tree leaves due to CFA amendments. MTE mobility in contaminated soil and their accumulation in leaves differed with the nature of CFA amendments and the selected tree species. [ABSTRACT FROM AUTHOR]

Published
2017
Full Text
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2. Nature of fly ash amendments differently influences oxidative stress alleviation in four forest tree species and metal trace element phytostabilization in aged contaminated soil: A long-term field experiment

Author

Géraldine Bidar, Anthony Verdin, Frédéric Laruelle, Joël Fontaine, Stéphane Firmin, Pirouz Shirali, Sonia Labidi, Anissa Lounès-Hadj Sahraoui, Francis Douay, Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), Université du Littoral Côte d'Opale (ULCO), Université de Carthage - University of Carthage, Hydrogeochemistry Interactions Soil Environment unit (HYDRISE), Institut Polytechnique LaSalle Beauvais, Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 (LGCgE), Université d'Artois (UA)-Université de Lille-Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-JUNIA (JUNIA), Agro-écologie, Hydrogéochimie, Milieux et Ressources (AGHYLE), UniLaSalle, and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)

Subjects
Antioxidant, Time Factors, Health, Toxicology and Mutagenesis, medicine.medical_treatment, [SDV]Life Sciences [q-bio], 010501 environmental sciences, Alnus, 01 natural sciences, Trees, chemistry.chemical_compound, Soil, Malondialdehyde, Soil Pollutants, Cadmium, biology, Robinia, Fatty Acids, Salix, 04 agricultural and veterinary sciences, General Medicine, Acer pseudoplatanus, Pollution, Soil contamination, Glutathione, Alnus glutinosa, Horticulture, Zinc, Biodegradation, Environmental, Coal fly ashes, 8-Hydroxy-2'-Deoxyguanosine, Phytostabilization, chemistry.chemical_element, Context (language use), Acer, Forest trees, Coal Ash, complex mixtures, Botany, medicine, MTE mobility, 0105 earth and related environmental sciences, Peroxidase, Superoxide Dismutase, Public Health, Environmental and Occupational Health, Deoxyguanosine, 15. Life on land, biology.organism_classification, Trace Elements, Plant Leaves, Oxidative Stress, chemistry, Lead, 13. Climate action, 040103 agronomy & agriculture, 0401 agriculture, forestry, and fisheries
Abstract

Aided phytostabilization using coal fly ashes (CFAs) is an interesting technique to clean-up polluted soils and valorizing industrial wastes. In this context, our work aims to study the effect of two CFAs: silico-aluminous (CFA1) and sulfo-calcic (CFA2) ones, 10 years after their addition, on the phytostabilization of a highly Cd (cadmium), Pb (lead) and Zn (zinc) contaminated agricultural soil, with four forest tree species: Robinia pseudoacacia , Alnus glutinosa , Acer pseudoplatanus and Salix alba . To assess the effect of CFAs on trees, leaf fatty acid composition, malondialdehyde (MDA), oxidized and reduced glutathione contents ratio (GSSG: GSH), 8-hydroxy-2′-deoxyguanosine (8-OHdG), Peroxidase (PO) and Superoxide dismutase (SOD) activities were examined. Our results showed that CFA amendments decreased the CaCl 2- extractable fraction of Cd and Zn from the soil. However, no significant effect was observed on metal trace element (MTE) concentrations in leaves. Fatty acid percentages were only affected by the addition of sulfo-calcic CFA. The most affected species were A. glutinosa and R. pseudoacacia in which C16:0, C18:0 and C18:2 percentages increased significantly whereas the C18:3 decreased. The addition of sulfo-calcic CFA induced the antioxidant systems response in tree leaves. An increase of SOD and POD activities in leaves of trees planted on the CFA2-amended plot was recorded. Conversely, silico-aluminous CFA generated a reduction of lipid and DNA oxidation associated with the absence or low induction of anti-oxidative processes. Our study evidenced oxidative stress alleviation in tree leaves due to CFA amendments. MTE mobility in contaminated soil and their accumulation in leaves differed with the nature of CFA amendments and the selected tree species.

Published
2017
Full Text
View/download PDF

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