Phytoavailability of zirconium in relation to its initial added form and soil characteristics

Ferrand, Emmanuelle; Dumat, Camille; Leclerc-Cessac, E.; Benedetti, Marc F.

doi:10.1007/s11104-006-9079-2

Cited by 26 publications

(27 citation statements)

References 29 publications

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“…After 6 h exposure, V. faba seedlings were harvested, roots were rapidly washed in distilled water and the lead bound to the rhizoderm was removed by 0.01 M HCl according to Ferrand et al (2006). The roots were washed by shaking for another 5 min in distilled water.…”

Section: Lead Content Analysismentioning

confidence: 99%

Lead-induced genotoxicity to Vicia faba L. roots in relation with metal cell uptake and initial speciation

Shahid

Pinelli

Pourrut

et al. 2011

Ecotoxicology and Environmental Safety

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228

102

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. Lead-induced genotoxicity to Vicia faba L.roots in relation with metal cell uptake and initial speciation. Ecotoxicology and Environmental Safety, Elsevier, 2011, vol. 74, pp. 78-84. <10.1016/j.ecoenv.2010 a b s t r a c tFormation of organometallic complexes in soil solution strongly influence metals phytoavailability. However, only few studies deal with the influence of metal speciation both on plant uptake and genotoxicity. In the present study, Vicia faba seedlings were exposed for 6 h in controlled hydroponic conditions to 5 mM of lead nitrate alone and chelated to varying degrees by different organic ligands.Ethylenediaminetetraacetic acid and citric acid were, respectively, chosen as models of humic substances and low weight organic acids present in natural soil solutions. Visual Minteq software was used to estimate free lead cations concentration and ultimately to design the experimental layout. For all experimental conditions, both micronucleus test and measure of lead uptake by plants were finally performed. Chelation of Pb by EDTA, a strong chelator, dose-dependently increased the uptake in V. faba roots while its genotoxicity was significantly reduced, suggesting a protective role of EDTA. A weak correlation was observed between total lead concentration absorbed by roots and genotoxicity (r 2 ¼0.65). In contrast, a strong relationship (r 2 ¼0.93) exists between Pb 2 + concentration in exposure media and genotoxicity in the experiment performed with EDTA. Citric acid induced labile organometallic complexes did not demonstrate any significant changes in lead genotoxicity or uptake. These results demonstrate that metal speciation knowledge could improve the interpretation of V. faba genotoxicity test performed to test soil quality.

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Section: Lead Content Analysismentioning

confidence: 99%

Lead-induced genotoxicity to Vicia faba L. roots in relation with metal cell uptake and initial speciation

Shahid

Pinelli

Pourrut

et al. 2011

Ecotoxicology and Environmental Safety

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228

102

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“…In addition to origin (whether natural or anthropogenic), several other factors in fl uence the mobility of Zr in soils, such as soil characteristics, interactions with organic matter, and climate (Ferrand et al 2006 ;Davydov et al 2006 ) . These factors, separately or in combination, affect the bioavailability of Zr, particularly when adsorption/desorption processes are involved ( Klechkovsky and Gulyakin 1958 ;Schulin et al 2007 ) .…”

Section: Retention Mobility and Bioavailability Of Zr In Soilsmentioning

confidence: 99%

“…Soil organic content affects the mobilization of Zr, because this element may be adsorbed by it, or may form stable complexes with it (Ferrand et al 2006 ) . Such interactions may result from the interaction of metal ions with the acidic binding sites on carboxylic and phenolic hydroxyl groups of SOM (Oliva et al 1999 ;Viers et al 2000 ;Pokrovsky and Schott 2002 ) .…”

Section: Retention Mobility and Bioavailability Of Zr In Soilsmentioning

confidence: 99%

“…Zr exists in several forms in the soil and in liquid media, and these forms have different levels of solubility and bioavailability (Fodor et al 2005 ;Davydov et al 2006 ;Ryzhenko et al 2008 ;Prisyagina et al 2008 ;Louvel et al 2009 ) . Different Zr species affect the solubility, mobility, and uptake of Zr by plants (Davydov et al 2006 ;Ferrand et al 2006 ;Ryzhenko et al 2008 ) . Therefore, although it is relatively easier to measure, one cannot rely on the total Zr content in a plant as an indicator of uptake and toxicity (Shahid et al 2012b ) .…”

Section: Zr Speciationmentioning

confidence: 99%

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Behavior and Impact of Zirconium in the Soil–Plant System: Plant Uptake and Phytotoxicity

Shahid

Ferrand

Schreck

et al. 2012

Reviews of Environmental Contamination and Toxicology Volume 221

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Zirconium (Zr) is a transition metal that has both stable and radioactive isotopes.This metal has gained significant attention as a major pollutant of concern, partly because it has been prominent in the debate concerning the growing anthropogenic pressure on the environment. Its numerous past and present uses have induced significant soil and water pollution. Zr is generally considered to have low mobility in soils. The behavior of Zr particularly depends on the characteristics of the media in which it exists, and even its presence in the biosphere as a contaminate may affect its behavior. In this chapter, we describe the relationship between the behavior of Zrand its speciation in soils, its uptake and accumulation by plants, its translocation and toxicity inside plants, and mechanisms by which plants detoxify it.Zr is abundant and occurs naturally in the earth's crust. Zr emissions to the atmosphere are increasing from anthropogenic activities such as its use in industry and nuclear reactors. Zr forms various complexes with soil components, which reduces its soil mobility and phytoavailabilty. The mobility and phytoavailabilty of Zr in soil depend on its speciation and the physicochemical properties of soil that include soil pH, texture, and organic contents. Despite having low soil mobility and phytoavailability,amounts of Zr are absorbed by plants, mainly through the root system and can thereby enter the food chain.After plant uptake, Zr mainly accumulates in root cells. Zr does not have any known essential function in plant or animal metabolism. Although little published data are available, we conclude that the phytotoxicity of Zr is generally low.Notwithstanding, Zr can significantly reduce plant growth and can affect plantenzyme activity. When exposed to Zr-induced toxicity, plants possess numerous defense mechanisms to cope with the toxicity. Such strategies include Zr sequestration in plant roots and activation of various antioxidants. Because Zr may have impact on the biosphere, we believe it deserves to be evaluated in supplementary studies that will enhance the understanding of its behavior in soil-plant systems.

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“…But cationic metals that would ordinarily precipitate at the pH values of most soils are sometimes maintained in solution through complexation with soluble organics (Ferrand et al, 2006). Furthermore, metals participate and/or affect biogeochemical cycles in soils and influence the soil biota (Barajas-Aceves et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Interactions between metals and soil organic matter in various particle size fractions of soil contaminated with waste water

Quénéa¹,

Lamy²,

Winterton³

et al. 2009

Geoderma

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179

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. Interactions between metals and soil organic matter in various particle size fractions of soil contaminated with waste water. Geoderma, Elsevier, 2009Elsevier, , vol. 1, pp. 217-223. 10.1016Elsevier, /j.geoderma.2008 Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Only scarce field studies concern the consequences of natural soil organic matter (SOM) and metal interactions on SOM dynamics in soils. We investigated the interactions of four metals (Pb, Zn, Cu and Cd) with the SOM associated to five different size fractions (between 2000 µm and b2 µm) of a sandy top soil contaminated by waste water. Metal, organic carbon and nitrogen concentrations were measured and chemical extractions (with Na 4 P 2 O 7 and EDTA) were also performed to assess the variations of SOM-metal interactions irrespective of the size fraction. In addition, as in that selected contaminated site, maize (C 4 plant), replaced C 3 crops 15 years ago, natural isotopic 13 C labelling gave new insights into SOM turnover. First, the results suggest that metals influence the SOM dynamics in that sandy soil: a C 3 "old carbon" enrichment was observed in the small or clay size fractions, while the "new" C 4 carbon associated with sandy soil particles presents a rapid turnover. Metal accumulation in the clay fraction is attributed to particulate organic matter (poorly associated) and SOM decay which overtime accumulated metals and eventually these metal-SOM associations prevent the biological decomposition of such carbon pools. Moreover, the δ 13 C signals, C/N ratios and results from chemical extractions clearly showed differences in the origin, nature and reactivity of the SOM as a function of the size fraction with consequences on the metal behaviour. Differences were observed between metals studied: Zn seems to be mainly bound to SOM associated with clay particles, while Pb seems to prefer to interact directly with the mineral surfaces versus the SOM.

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Phytoavailability of zirconium in relation to its initial added form and soil characteristics

Cited by 26 publications

References 29 publications

Lead-induced genotoxicity to Vicia faba L. roots in relation with metal cell uptake and initial speciation

Lead-induced genotoxicity to Vicia faba L. roots in relation with metal cell uptake and initial speciation

Behavior and Impact of Zirconium in the Soil–Plant System: Plant Uptake and Phytotoxicity

Interactions between metals and soil organic matter in various particle size fractions of soil contaminated with waste water

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