Nitrilotriacetate- and citric acid-assisted phytoextraction of cadmium by Indian mustard (Brassica juncea (L.) Czernj, Brassicaceae)

Quartacci, Mike Frank; Baker, A. J. M.; Navari-Izzo, F.

doi:10.1016/j.chemosphere.2004.11.053

Cited by 114 publications

(55 citation statements)

References 27 publications

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“…In addition, APCAs exhibit a significant toxicity for plants and soil microorganisms (Huang et al, 1997;Santos et al, 2006) and in some cases show a strong persistence in soil. The use of natural, low molecular weight organic acids (NLMWOA), which are characterized by lower toxicity and higher biodegradability, has been proposed for assisted phytoremediation as an alternative to the above-mentioned chelators, (Quartacci et al, 2005;do Nascimento et al, 2006;Evangelou et al, 2006;Liu et al, 2008), thus providing translocation percentages similar to those obtained with APCAs without increasing the risk of metal leaching.…”

Section: Introductionmentioning

confidence: 99%

“…In fact, heavy metals have a significant toxicity for humans, animals, microorganisms and plants (Wagner 1994;Gaetke and Chow, 2003;HernandezOchoa et al, 2005;Quartacci et al, 2005;Bodar et al, 2006;Fotakis and Timbrell, 2006). Moreover, heavy metals are not subject to degradation processes and therefore remain almost indefinitely in the environment, although the bioavailability of these chemicals can change considerably depending on their interactions with the various soil constituents.…”

Section: Introductionmentioning

confidence: 99%

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Heavy metal distribution between contaminated soil and Paulownia tomentosa, in a pilot-scale assisted phytoremediation study: Influence of different complexing agents

et al. 2008

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a b s t r a c tThe distribution of Cd, Cu, Pb and Zn between a contaminated soil and the tree species Paulownia tomentosa was investigated in a pilot-scale assisted phytoremediation study. The influence of the addition of EDTA, tartrate and glutamate at 1, 5 and 10 mM concentrations on metal accumulation by the plant and on metal mobilization in soil was evaluated. Root/shoot metal concentration ratios were in the range of 3-5 for Zn, 7-17 for Cu, 9-18 for Cd and 11-39 for Pb, depending on the type and concentration of complexing agent. A significant enhancement of metal uptake in response to complexing agent application was mainly obtained in roots for Pb (i.e. 359 mg kg À1 for EDTA 10 mM and 128 mg kg À1 for the control), Cu (i.e. 594 mg kg À1 for glutamate 10 mM and 146 mg kg À1 for the control) and, with the exception of glutamate, also for Zn (i.e. 670 mg kg À1 for tartrate 10 mM and 237 mg kg À1 for the control). Despite its higher metal mobilization capacity, EDTA produced a metal accumulation in plants quite similar to those obtained with tartrate and glutamate. Consequently the concentration gradient between soil pore water and plant tissues does not seem to be the predominant mechanism for metal accumulation in Paulownia tomentosa and a role of the plant should be invoked in the selection of the chemical species taken up. Metal bioavailability in soil at the end of the experiment was higher in the trials treated with EDTA than in those treated with tartrate and glutamate, the latter not being significantly different from the control. These findings indicated the persistence of a leaching risk associated to the use of this chelator, while an increase of the environmental impact is not expected when glutamate and tartrate are applied.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heavy metal distribution between contaminated soil and Paulownia tomentosa, in a pilot-scale assisted phytoremediation study: Influence of different complexing agents

et al. 2008

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“…In recent years, some easily biodegradable chelates, such as NTA (nitrilotriacetate) and EDDS (S,S-ethylenediaminedisuccinic acid), have been proposed to enhance the phytoextraction of heavy metals from contaminated soils (Kulli et al, 1999;Kayser et al, 2000;Grčman et al, 2003;Kos and Leštan, 2003 a and b;Luo et al, 2005;Meers et al, 2005;Quartaccia et al, 2005). However, NTA was less effective than EDTA in increasing the phytoextraction of Pb in cabbage (Shen et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

“…chinensis), along with appropriate chemical treatments to increase the solubility and uptake of Pb (Huang and Cunningham, 1996;Blaylock et al, 1997;Ebbs and Kochian, 1998;Wu et al, 1999;Kayser et al, 2000;Shen et al, 2002;Kos and Leštan, 2003a, b;Quartaccia et al, 2005). Chelates have been shown to enhance the phytoextraction of Pb from contaminated soil.…”

Section: Introductionmentioning

confidence: 99%

Enhanced phytoextraction of Pb and other metals from artificially contaminated soils through the combined application of EDTA and EDDS

Luo

Shen

et al. 2006

Chin. J. Geochem.

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Chemically enhanced phytoextraction is achieved by the application of chelates to soils. Using pot experiments, the effect of the combined application of EDTA and EDDS on the uptake of Cu, Pb Zn and Cd by Zea mays L. was studied. Among the tested application ratios of 1:1, 1:2, and 2:1 (EDTA/EDDS), 2:1 of EDTA:EDDS was the most efficient ratio for increasing the concentrations of Cu, Pb, Zn and Cd in the shoots. The This is the Pre-Published Version.2 combined application of EDTA + EDDS did not involve a change in the pH of the soil.The increase in the phytoextraction of Pb by the shoots of Zea mays L. was more pronounced than the increase of Pb in the soil solution with the combined application of EDTA and EDDS. It was thought that the major role of EDDS might be to increase the uptake and translocation of Pb from the roots to the shoots of plants.

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“…Of the five chemical agents tested, EDTA showed the most effective Pb mobilization (Huang et al 1997), however EDTA is little biodegradable and can enhance leaching of metals to groundwater (Grčman et al 2001). Due to the potential risks, chemical agents with high biodegradability, low phytotoxicity and chelating strength (NTA, citric acid and succinamic acid) were proposed for the chemically assisted phytoextraction of HMs (Quartacci et al 2005).…”

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confidence: 99%

Heavy metals phytoextraction from heavily and moderately contaminated soil by field crops grown in monoculture and crop rotation

Čechmánková¹,

Vácha²,

Skála³

et al. 2011

Soil & Water Res.

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Abstract:The uptake of Pb, Cd, Zn and biomass production of the plants Brassica juncea v. Opaleska, Triticale hexaploides var. Gabo and Helianthus annuus v. Maritza were observed in a field (trial) and a pot experiments during four years. The plants were grown in monoculture variants and also in crop rotation. The field experiment (plots about 1 × 1 m) was set up in heavily contaminated Haplic Fluvisol in the Litavka River alluvium. Pb, Cd, and Zn phytoextraction from the identical Haplic Fluvisol and Haplic Cambisol less contaminated mainly by atmospheric deposition was observed in the pot experiment. The application of 0.2 g EDTA (ethylenediaminetetraacetic acid)/kg and 1 g citric acid/kg into the soils of field (250 kg of soil/m 2 plot) and pot (6 kg of soil/pot) experiments was realized. The comparison was accomplished between natural phytoextraction efficiency of B. juncea, H. annuus, and T. hexaploides. Crop rotation with and without chemical induction was tested. EDTA application had an immediate strong mobilization effect on the elements tested in both experiments and both soils. In the pot experiment, Pb, Cd, and Zn were more mobilized in Cambisol with initial lower mobile contents of elements in comparison with Fluvisol. The highest mobilization by EDTA was achieved for Pb. Strong Pb mobilization in Cambisol after EDTA addition resulted in a high Pb uptake and translocation from the roots of B. juncea into the shoots. EDTA application increased Pb phytoextraction by harvested B. juncea. Naturally grown H. annuus proved the high phytoextraction efficiency for Cd and Zn in the experiment. The assumed effect of the cultivation method, i.e. crop rotation vs. Monoculture, was not statistically proved in our experiments.

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Nitrilotriacetate- and citric acid-assisted phytoextraction of cadmium by Indian mustard (Brassica juncea (L.) Czernj, Brassicaceae)

Cited by 114 publications

References 27 publications

Heavy metal distribution between contaminated soil and Paulownia tomentosa, in a pilot-scale assisted phytoremediation study: Influence of different complexing agents

Heavy metal distribution between contaminated soil and Paulownia tomentosa, in a pilot-scale assisted phytoremediation study: Influence of different complexing agents

Enhanced phytoextraction of Pb and other metals from artificially contaminated soils through the combined application of EDTA and EDDS

Heavy metals phytoextraction from heavily and moderately contaminated soil by field crops grown in monoculture and crop rotation

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