Chelate-assisted phytoextraction: Effect of EDTA and EDDS on copper uptake by Brassica napus L.

Zeremski, Tijana; Sekulić, Petar; Maksimović, Ivana; Šeremešić, Srđan; Ninkov, Jordana; Milić, Stanko; Vasin, Jovica

doi:10.2298/jsc091207086z

Cited by 23 publications

(8 citation statements)

References 14 publications

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“…Based on data presented in Table 2 it can be concluded that biomass production is strongly influenced by the chelator application rate. Chelators applied in low doses, e.g., 2 mmol/kg EDDS and EDTA [111] and 3 mmol/kg GLDA [89], did not influence plant growth, but the higher concentrations significantly affected biomass production. The highest reduction in biomass (72.6%) was observed in B. juncea growing in soil treated with 10 mmol/kg EDTA and B. napus growing in soil treated with 8 mmol/kg EDDS.…”

Section: Chemically Assisted Phytoextractionmentioning

confidence: 87%

“…Numerous studies on the effect of applications of different chelating agents on metal uptake and translocation by Brassica sp. [89,[111][112][113][114][115][116] addressed the pronounced phytotoxicity which affects plant biomass production as one of the most frequently observed side effects of increased metal bioavailability. The influence of the application of different chelators on biomass reduction in cultivated Brassica species is presented in Table 2.…”

Section: Chemically Assisted Phytoextractionmentioning

confidence: 99%

“…Increasing the concentration of chelators increases the uptake of metals by plants, but this effect is less pronounced at higher chelator concentrations due to the strong phytotoxic effect of heavy metals. For example, Zeremski et al [111] reported an insignificant difference in Cu uptake by B. napus after soil treatment with EDTA at concentrations of 4 and 8 mmol/kg. A similar phenomenon was observed by Di Guo [112] in Cd and Zn uptake by B. juncea after treatment with EDTA at concentrations of 5 and 10 mmol/kg and after soil treatment with a combination of 5 mmol/kg EDTA with 5 and 10 mmol/kg OA.…”

Section: Chemically Assisted Phytoextractionmentioning

confidence: 99%

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Brassica Species in Phytoextractions: Real Potentials and Challenges

Zeremski

Ranđelović

Jakovljević

et al. 2021

Plants

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The genus Brassica is recognized for including species with phytoaccumulation potential and a large amount of research has been carried out in this area under a variety of conditions, from laboratory experiments to field trials, with spiked or naturally contaminated soils, using one- or multi-element contaminated soil, generating various and sometimes contradictory results with limited practical applications. To date, the actual field potential of Brassica species and the feasibility of a complete phytoextraction process have not been fully evaluated. Therefore, the aim of this study was to summarize the results of the experiments that have been performed with a view to analyzing real potentials and limitations. The reduced biomass and low metal mobility in the soil have been addressed by the development of chemically or biologically assisted phytoremediation technologies, the use of soil amendments, and the application of crop management strategies. Certain issues, such as the fate of harvested biomass or the performance of species in multi-metal-contaminated soils, remain to be solved by future research. Potential improvements to current experimental settings include testing species grown to full maturity, using a greater amount of soil in experiments, conducting more trials under real field conditions, developing improved crop management systems, and optimizing solutions for harvested biomass disposal.

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Section: Chemically Assisted Phytoextractionmentioning

confidence: 87%

Section: Chemically Assisted Phytoextractionmentioning

confidence: 99%

Section: Chemically Assisted Phytoextractionmentioning

confidence: 99%

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Brassica Species in Phytoextractions: Real Potentials and Challenges

Zeremski

Ranđelović

Jakovljević

et al. 2021

Plants

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“…The third is surfactants such as RH (rhamnose) [21]. To date, it has been established that numerous chelating agents exhibit different degrees of activation for lead (Pb), cadmium (Cd), copper (Cu), and zinc (Zn), and other heavy metals [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Comparative Activation Process of Pb, Cd and Tl Using Chelating Agents from Contaminated Red Soils

Liu

Luo

Yao

et al. 2020

IJERPH

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Adding chelating agents is a critical technique of heavy metal activation for enhancing phytoextraction through the formation of soluble metal complexes which will be more readily available for extraction. The preliminary, dynamic, equilibrium activation experiments and speciation analysis of Pb, Cd and Tl in contaminated red soils were used to select six chelates with relatively good activation performance from nine chelates, and the effects of dosage and pH on the heavy metals activation were studied systematically. Results showed that the activation of Pb, Cd and Tl by chelates reached equilibrium within 2 h, and the activation process showed three stages. Under neutral conditions, chelates had better activation performance on Pb- and Cd-contaminated soils. Except for S,S-ethylenediamine disuccinic acid (S,S-EDDS) and citric acid (CA), the maximum equilibrium activation effect (MEAE) of ethylenediaminetetraacetic acid (EDTA), N,N-bis (carboxymethyl) glutamic acid (GLDA), diethylenetriaminepentaacetic acid (DTPA) and aminotriacetic acid (NTA) was over 81%. The MEAE of Tl-contaminated soil was less than 15%. The decreasing order of the dosage of chelating agents corresponding to MEAE for three types of contaminated soils was Pb-, Cd- and Tl-contaminated soil, relating to the forms of heavy metals, the stability constants of metal–chelates and the activation of non-target elements Fe in red soil. Under acidic conditions, the activation efficiencies of chelates decreased to differing degrees in Pb- and Cd-contaminated soils, whereas the activation efficiencies of chelating agents in Tl-contaminated soils were slightly enhanced.

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“…EDTA promotes the Cd solubility as it has definite affinity and binding ability with Cd, but it did not enhances the Cd uptake in plants and consequently ameliorate its toxic effect (Romkens et al, 2002). However, most synthetic chelators like EDTA and EDDS form complexes with metals which have high stability and contaminate the groundwater (Zeremski-Skoric et al, 2010). Low-molecular-weight organic acids (LMWOA) like oxalic acid (OA) and citric acid (CA) may prove environmentally compatible alternatives for synthetic chelators because they are the part of root exudates thus acting as natural chelators (Hsiao et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Exogenous Application of Ethylenediaminetetraacetic Acid and Oxalic Acid Improve the Seed Germination and Enzymes Activities of Sunflower (Helianthus annuus) Under Cadmium Stress

Sadiq¹,

Hussain²,

Ashraf³

et al. 2015

IJAB

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To cite this paper: Sadiq, R., M. Hussain, M. Ashraf and K.U. Rehman, 2015. Exogenous application of ethylenediaminetetraacetic acid and oxalic acid improve the seed germination and enzymes activities of sunflower (Helianthus annuus) under cadmium stress. AbstractThe study was conducted to examine the deleterious effects of cadmium (Cd) on metabolic enzymes and their end products during seed germination and the effect of ethylenediaminetetraacetic acid (EDTA) and oxalic acid (OA) in easing the Cd toxicity in two sunflower hybrids (Hysun-33 and FH-533). To accomplish this, a pot experiment was carried out in small sandfilled plastic pots under normal environment temperature (28±2ºC). Seeds of both sunflower hybrids were exposed to Cd levels (250 and 450 mg/kg) alone and in combination of optimized level of chelating agents EDTA and OA (each at the rate of 1g/kg) at the time of sowing. The enzymes activities of two germinating hybrids were recorded over time from 24 to 120 h after sowing. When Cd was applied alone it reduced the germination rate, enzymes activities and total soluble sugars contents. Mobilization of stored proteins and amino acids were also suppressed in germinating seeds of both hybrids. However, application of EDTA and OA in combination with Cd improved the germination rate of seeds by surpassing the biochemical metabolism and enhanced the activities of α-amylase and protease revealing the ameliorating effect to Cd toxicity. Results revealed that minimum values of all the attributes are obtained at 450 mg/kg of Cd level, while chelators treatments proved effective in relieving Cd stress of which OA had 10% more pronounced germination percentage than EDTA and 30% more as compared to control. Interactive studies showed that both the chelators detoxify the 250 mg/kg of Cd more as compared to 450 mg/kg of Cd. Results clearly indicated that sunflower hybrid Hysun-33 showed greater activities of two hydrolyzing enzymes and efficient mobilization of reserved sugars and proteins than hybrid FH-533 under Cd stress, so it can be grown on Cd contaminated soils for higher plant productivity. Thereafter EDTA and OA could be supportive to improve the seed germination security in Cd polluted soil.

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Chelate-assisted phytoextraction: Effect of EDTA and EDDS on copper uptake by Brassica napus L.

Cited by 23 publications

References 14 publications

Brassica Species in Phytoextractions: Real Potentials and Challenges

Brassica Species in Phytoextractions: Real Potentials and Challenges

Comparative Activation Process of Pb, Cd and Tl Using Chelating Agents from Contaminated Red Soils

Exogenous Application of Ethylenediaminetetraacetic Acid and Oxalic Acid Improve the Seed Germination and Enzymes Activities of Sunflower (Helianthus annuus) Under Cadmium Stress

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