Plants increase arsenic in solution but decrease the non-specifically bound fraction in the rhizosphere of an alkaline, naturally rich soil

Autor: Bernard Guy, Jacques Moutte, Cyrille Conord, Jean-Luc Bouchardon, Olivier Faure, Matthieu Bravin, Carole Obeidy
Přispěvatelé: Centre Sciences des Processus Industriels et Naturels (SPIN-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), Département GéoSciences et Environnement (GSE-ENSMSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-SPIN, Environnement, Ville, Société (EVS), École normale supérieure de Lyon (ENS de Lyon)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université Lumière - Lyon 2 (UL2)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Jean Monnet - Saint-Étienne (UJM)-École Nationale des Travaux Publics de l'État (ENTPE)-École nationale supérieure d'architecture de Lyon (ENSAL)-Centre National de la Recherche Scientifique (CNRS), Recyclage et risque (UPR Recyclage et risque), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Université Jean Monnet - Saint-Étienne (UJM), CIRAD-UPR Recyclage et risque, Université de Lyon-CNRS, UMR-5600 EVS, Université Jean Monnet, Environnement Ville Société (EVS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-École nationale supérieure d'architecture de Lyon (ENSAL)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École Nationale des Travaux Publics de l'État (ENTPE)-Université Jean Monnet [Saint-Étienne] (UJM)-Université Jean Moulin - Lyon 3 (UJML), Université de Lyon-Université Lumière - Lyon 2 (UL2)-École normale supérieure - Lyon (ENS Lyon), Université Jean Monnet [Saint-Étienne] (UJM)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Bioavailability
Health
Toxicology and Mutagenesis
Holcus
Alcalinité
Asteraceae
010501 environmental sciences
01 natural sciences
Soil
chemistry.chemical_compound
Soil Pollutants
Transport des substances nutritives
Holcus lanatus
2. Zero hunger
[SDV.EE]Life Sciences [q-bio]/Ecology
environment
Rhizosphere
Plantago
biology
Lessivage du sol
food and beverages
Enracinement
04 agricultural and veterinary sciences
General Medicine
Hydrogen-Ion Concentration
Plants
Dittrichia viscosa
Pollution
Solutions
Horticulture
Arsenate
Phytostabilization
P33 - Chimie et physique du sol
Metalloid
Soil-root interface
F60 - Physiologie et biochimie végétale
chemistry.chemical_element
Arsenic
Alkali soil
Lotus corniculatus
Contamination
Plantago lanceolata
[SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering
Propriété physicochimique du sol
0105 earth and related environmental sciences
fungi
P35 - Fertilité du sol
Public Health
Environmental and Occupational Health
15. Life on land
biology.organism_classification
Rhizosphère
chemistry
Agronomy
Lotus
040103 agronomy & agriculture
0401 agriculture
forestry
and fisheries
Zdroj: Ecotoxicology and Environmental Safety
Ecotoxicology and Environmental Safety, 2016, 126, pp.23-29. ⟨10.1016/j.ecoenv.2015.12.010⟩
Ecotoxicology and Environmental Safety, Elsevier, 2016, 126, pp.23-29. ⟨10.1016/j.ecoenv.2015.12.010⟩
ISSN: 0147-6513
1090-2414
DOI: 10.1016/j.ecoenv.2015.12.010⟩
Popis: International audience; We aimed at determining the major physical-chemical processes that drive arsenic (As) dynamic in the rhizosphere of four species (Holcus lanatus, Dittrichia viscosa, Lotus corniculatus, Plantago lanceolata) tested for phytostabilization.Experiments were performed with an alkaline soil naturally rich in As. Composition of the soil solution of planted and unplanted pots was monitored every 15 days for 90 days, with a focus on the evolution of As concentrations in solution and in the non-specifically bound (i.e. easily exchangeable) fraction.The four species similarly increased As concentration in solution, but decreased As concentration in the non-specifically bound fraction. The major part (60%) of As desorbed from the non-specifically bound fraction in planted pots was likely redistributed on the less available fractions of As on the solid phase. A second part (35%) of desorbed As was taken up by plants. The minor part (5%) of desorbed As supplied As increase in solution.To conclude, plants induced a substantial redistribution of As on the less available fractions in the rhizosphere, as expected in phytostabilization strategies. Plants however concomitantly increased As concentration in the rhizosphere solution which may contribute to As transfer through plant uptake and leaching.
Databáze: OpenAIRE
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