Heavy Metal and Arsenic Resistance of the Halophyte Atriplex halimus L. Along a Gradient of Contamination in a French Mediterranean Spray Zone
| Autor: | Isabelle Laffont-Schwob, Alain Tonetto, Brahim Lotmani, Ahlem Ellili, Jacques Rabier, Marie-Dominique Salducci, Anca Pricop, Pascale Prudent, Véronique Masotti, Gabriel d’Enjoy-Weinkammerer |
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| Přispěvatelé: | Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE), Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement [IRD] : UMR237-Centre National de la Recherche Scientifique (CNRS), Laboratoire Chimie de l'environnement (LCE), Aix Marseille Université (AMU)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Aix-Marseille Université - Faculté des Sciences (AMU SCI), Aix Marseille Université (AMU) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
Environmental Engineering Population chemistry.chemical_element 010501 environmental sciences Biology Mediterranean saltbush 01 natural sciences Atriplex halimus Halophyte Botany Inorganic contamination Environmental Chemistry [CHIM]Chemical Sciences [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Trace metal education Arsenic 0105 earth and related environmental sciences Water Science and Technology Non-invasive sensors [SDV.EE]Life Sciences [q-bio]/Ecology environment education.field_of_study Ecological Modeling Root symbioses Lead smelting biology.organism_classification Pollution 6. Clean water chemistry Bioaccumulation Metalloid Phytostabilization Salt-affected soils 010606 plant biology & botany |
| Zdroj: | Water, Air, and Soil Pollution Water, Air, and Soil Pollution, Springer Verlag, 2014, 225 (7), pp.1993. ⟨10.1007/s11270-014-1993-y⟩ Water, Air, and Soil Pollution, 2014, 225 (7), pp.1993. ⟨10.1007/s11270-014-1993-y⟩ |
| ISSN: | 0049-6979 1573-2932 |
| Popis: | International audience; Elements uptake, histological distributions as well as mycorrhizal and physiological statuses of Atriplex halimus were determined on trace metal and metalloid polluted soils from the surrounding spray zones of a former lead smelter in the South-East coast of Marseille (France). Analyses of heavy metal and arsenic distribution in soil and plant organs showed that A. halimus tolerance is largely due to exclusion mechanisms. No specific heavy metal concentration in leaf or root tissues was observed. However, accumulation of salts (NaCl, KCl, Mg and Ca salts) on leaf bladders and peripheral tissues of roots was observed and may compete with metal element absorption. Occurrence of endomycorrhizal structures was detected in roots and may contribute to lower element transfer from root into the aerial parts of plants. The non-destructive measurements of leaf epidermal chlorophylls, flavonols and phenols showed a healthy state of the A. halimus population on the metal and metalloid polluted sites. Considering the low metal bioaccumulation and translocation factors along with a reduced metal stress diagnosis, A. halimus appeared as a good candidate for phytostabilization of trace metals and metalloids and notably arsenic in contaminated soils of the Mediterranean spray zone. However, its invasive potential has to be determined before an intensive in situ use. |
| Databáze: | OpenAIRE |
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