Long-Term Field Metal Extraction by<i>Pelargonium:</i>Phytoextraction Efficiency in Relation to Plant Maturity

Shahid, Muhammad; Arshad, Muhammad; Kaemmerer, M.; Pinelli, Éric; Probst, Anne; Baqué, David; Pradère, Philippe; Dumat, Camille

doi:10.1080/15226514.2011.604689

Cited by 69 publications

(33 citation statements)

References 40 publications

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“…This contradiction has affected the multi-metal extraction efficiency. To solve this problem, researchers have investigated multi-metal hyperaccumulators (Abu Bakar et al 2013, Keller 2006, Marchiol et al 2004, Shahid et al 2012. P. vittata can accumulate As, Pb (Wan et al 2014), Cr (Su et al 2005), and Sb, although not in a single population.…”

Section: Discussionmentioning

confidence: 99%

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

Wan

Lei

Chen

2016

Environ Sci Pollut Res

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Arsenic (As) and antimony (Sb) are chemical analogs that display similar characteristics in the environment. The As hyperaccumulator Pteris vittata L. is a potential AsSb co-accumulating species. However, when this plant is exposed to different As and Sb speciation, the associated accumulating mechanisms and subsequent assimilation processes of As and Sb remain unclear. A 2-week hydroponic experiment was conducted by exposing P. vittata to single AsIII, AsV, SbIII, and SbV or the co-existence of AsIII and SbIII and AsV and SbV. P. vittata could co-accumulate As and Sb in the pinna (>1000 mg kg −1 ) with high translocation (>1) of As and Sb from the root to the pinna. P. vittata displayed apparent preference to the trivalent speciation of As and Sb than to the pentavalent speciation. Under the single exposure of AsIII or SbIII, the pinna concentration of As and Sb was 84 and 765 % higher than that under the single exposure of AsV or SbV, respectively. Despite the provided As speciation, the main speciation of As in the root was AsV, whereas the main speciation of As in the pinna was AsIII. The Sb in the roots comprised SbV and SbIII when exposed to SbV but was exclusively SbIII when exposed to SbIII. The Sb in the pinna was a mixture of SbV and SbIII regardless of the provided Sb speciation. Compared with the single exposure of As, the coexistence of As and Sb increased the As concentration in the pinna of P. vittata by 50-66 %, accompanied by a significant increase in the AsIII percentage in the root. Compared with the single exposure of Sb, the co-existence of Sb and As also increased the Sb concentration in the pinna by 51-100 %, but no significant change in Sb speciation was found in P. vittata.

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Section: Discussionmentioning

confidence: 99%

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

Wan

Lei

Chen

2016

Environ Sci Pollut Res

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“…During recent decades, different remediation techniques have been developed to reduce total or bioavailable concentrations of heavy metals in soils and thus minimize their accumulation in the food chain (Shahid et al 2012;Clemente et al 2012). However, several soil remediation techniques, such as ex situ excavation (Li et al 2011), verification (Boisson et al 1999), and electrokinetics (Fan et al 2010), have not been widely utilized because of their relatively high costs or level of soil disruption.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of different amendments and foliar fertilizer for immobilization of heavy metals in contaminated soils

et al. 2017

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Purpose The aim of this study was to evaluate the effectiveness of soil amendments and foliar fertilizer on Cd and Pb immobilization in contaminated soils. Materials and methods A field experiment was conducted in contaminated soils, wherein four amendments (sepiolite (SE), single superphosphate (SSP), triple super phosphate (TSP), calcium magnesium phosphate (CMP)) in combination with one foliar fertilizer (ZnSO 4 ) were investigated to reduce Cd and Pb bioavailability in calcareous soils. Total Cd and Pb concentrations in wheat, soil, and amendments were determined using inductively coupled plasma mass spectrometry. Available concentrations of Cd and Pb in soils were extracted using diethylenetriamine pentaacetic acid. Results and discussion The results indicated that application of these amendments and foliar fertilizer significantly decreased Cd availability in soils and Cd accumulation in wheat (P < 0.05); however, the soil amendments plus Zn fertilizer did not significantly decrease Cd and Pb concentrations in wheat. Compared with the control, application of soil amendments effectively reduced the available Cd and Pb in soils by 25.69~54.13% and 9.86~42.14%, respectively. Accordingly, the reduction of Cd and Pb concentrations in wheat grain by the soil amendments was 20.68~41.38% and 23.68~55.26%, respectively.Conclusions Among all the treatments, the addition of SE + SSP and SE + CMP exhibited the most efficiency in reducing Cd and Pb availability, respectively, in the soil.

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“…The second important factor in the success of phytoaccumulation is the availability of heavy metals in the soil. For this purpose, different chelating agents such as oxalic acid, citric acid, ethylenediaminedisuccinate (EDDS), ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetate (NTA) have reported in literature (16,17,12). Most of studies have focused on EDTA -assisted phytoextraction of Cd.…”

Section: -2mentioning

confidence: 99%

Comparison of EDTA, Citric Acid and TiO2 Nanoparticles to Support Cd Phytoaccumulation in Spiked Soil

Gul¹,

Manzoor²,

Hashim³

et al. 2018

International Conference of Recent Trends in Environmental Science and Engineering

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-Chelating agents can increase the bioavailability of cadmium (Cd) which is an important factor in phytoremediation. Current study aimed at comparing potential of organic and inorganic ligands for improving phytoextraction of Cd in soil. The greenhouse experiment was carried out to investigate the impacts of ethylenediaminetetraacetic acid (EDTA), citric acid and titanium dioxide nanoparticles (TiO 2 NPs) on the Cd accumulation and growth of Pelargonium hortroum. For this purpose, soil was spiked with different levels of Cd. One month old seedlings of P. hortorum were transplanted in each pot and different concentrations of EDTA, citric acid and TiO 2 were applied. After harvesting, plant biomass was measured and plant parts were digested in mixture of acid for the determination of Cd in root and shoot. The results revealed that the dry biomass of P. hortorum decreased by 46.5% with increasing levels of Cd and EDTA. However, the dry plant biomass increased with increasing levels of citric acid and TiO 2 NPs. The maximum dry plant biomass was observed in soil amended with TiO 2 NPs followed by citric acid and EDTA. The maximum accumulation of Cd in root (350, 260, ) and shoot (997, 650, 450 mg Cd kg -1 ) was observed at 4 mmol kg -1 EDTA followed by 10 mmol kg -1 citric acid and 100 mg kg -1 TiO 2 NPs, respectively. Our results demonstrated that citric acid and TiO 2 NPs had affirmative effect on the Cd uptake in the artificially Cd-contaminated soil.

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Long-Term Field Metal Extraction byPelargonium:Phytoextraction Efficiency in Relation to Plant Maturity

Cited by 69 publications

References 40 publications

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

Interaction of As and Sb in the hyperaccumulator Pteris vittata L.: changes in As and Sb speciation by XANES

Evaluation of different amendments and foliar fertilizer for immobilization of heavy metals in contaminated soils

Comparison of EDTA, Citric Acid and TiO2 Nanoparticles to Support Cd Phytoaccumulation in Spiked Soil

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