Effects of chelators on chromium and nickel uptake by Brassica juncea on serpentine-mine tailings for phytoextraction

Hsiao, Kai Hsun; Kao, Po-Hsu; Chen, Hsin-Yu

doi:10.1016/j.jhazmat.2007.02.049

Cited by 62 publications

(27 citation statements)

References 41 publications

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“…NH 4 Ac extraction was used here instead of NH 4 Ac-EDTA as the strong complexing agent, EDTA, may overestimate the bioavailable trace-metal concentrations extracted from the soil (Hsiao et al, 2007;Menzies et al, 2007). Nevertheless, it is noteworthy pointing out that there is no universal single extractant suitable for flawlessly assessing the easily available concentrations of multi-elements found in the soil.…”

Section: Chemical Analysesmentioning

confidence: 99%

“…This may imply that the plant effectively controls its relative uptake of this potentially toxic metal and is thus independent of the easily available Ni concentrations in the soil. On the contrary, an inducible mechanism by exudation of organic acids could be initiated by the plant when the concentrations of easily available Ni are low (Kabata-Pendias, 2001;Hsiao et al, 2007).…”

Section: Cobalt Nickel Zinc and Manganesementioning

confidence: 99%

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Chemical composition of cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate soils

Fältmarsch

Österholm

Jacks

2010

Z. Pflanzenernähr. Bodenk.

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The purpose of this study was to investigate the influence of soil geochemistry on the concentrations of Ca, K, Mg, P, Co, Ni, Zn, Mn, Cu, and Fe in cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate (AS) soils in Western Finland. A total of 11 topsoil (0-20 cm) and corresponding cabbage samples and three whole-soil profiles (≈ 0-260 cm) were collected on three agricultural fields. The concentrations of Co and Zn in cabbage were correlated with the NH 4 Acextractable (easily available) concentrations in the topsoil, indicating that the uptake of these elements in cabbage is largely governed by soil geochemistry. Yet, the concentrations of Co and Zn in cabbage were not in general elevated relative to that of Finnish average values, although some AS soils showed enriched concentrations of these metals in the soil and cabbage. Significant geochemical differences (e.g., oxidation depth, organic-matter and S content, pH) were observed among the studied AS soils, while, on the other hand, the concentrations of Ca, K, Mg, P, Ni, Mn, Cu, and Fe in cabbage were relatively similar. The hydroxylamine-extractable concentrations of these elements in the topsoil were not correlated to those in cabbage, suggesting that uptake is not governed by the oxide-bound fraction of these elements in the soil. Similarly, the easily available concentrations of Ca, P, Ni, Mn, Cu, and Fe in the topsoil were not correlated to those in cabbage, indicating that uptake is independent of the easily available concentrations in the soil. Hence, it is suggested that cabbage can regulate and thus optimize its concentrations of Ca, P, Ni, Mn, Cu, and Fe. Oxidation depth affected neither the easily available concentrations of Co, Ni, Zn, and Mn in the topsoil nor the concentrations in cabbage. However, the subsoil with a lower oxidation depth, which is to a smaller extent affected by leaching, may partly be enriched in these metals. Nevertheless, these showed no increased concentrations in cabbage. Based on these findings, it is suggested that the large amounts of metals mobilized in AS soils are easily lost to drains, subsequently contaminating nearby waterways and estuaries whereas they are only partly enriched in cabbage and other previously studied crops (oat).

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Section: Chemical Analysesmentioning

confidence: 99%

Section: Cobalt Nickel Zinc and Manganesementioning

confidence: 99%

Chemical composition of cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate soils

Fältmarsch

Österholm

Jacks

2010

Z. Pflanzenernähr. Bodenk.

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“…Differential 16 . After applying chelating agents, BCF rose significantly in case of EDTA (74%, 23%, 49%) compared to OA (19%, 6%, 11%) subjected to 6.25, 12.5 and 25 mg of Cr(VI), confirming EDTA augments Cr(VI) uptake more efficiently than OA.…”

Section: Uptake and Translocation Of Chromium In Brassica Juncea Lmentioning

confidence: 99%

Interactive Effects of EDTA and Oxalic Acid on Chromium Uptake, Translocation and Photosynthetic Attributes in Indian Mustard (<i>Brassica juncea</i> L. var. Varuna)

2017

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The accumulation and toxicity of chromium (Cr) in Indian mustard (Brassica juncea L.) under ethylene diamine tetraacetic acid (EDTA) and oxalic acid (OA) as chelating agents was studied. Plants were exposed to Cr(VI) and chelating agents in four experimental set-ups as Cr(VI), Cr(VI) + EDTA (1 : 1), Cr(VI) + OA (1 : 1) and Cr(VI) + EDTA + OA (1 : 1 : 1), where each set-up comprised of 0, 6.25, 12.5 and 25.0 mg of Cr(VI) and/or chelating agents in 250 g of soil. Results conferred that EDTA augmented bio-concentration factor in all the three doses of Cr(VI), OA considerably increased translocation factor in all the treatments, including control, and the combined application of the two chelates escalated both the aforesaid factors. Moreover, these chelating agents help in ameliorating Cr(VI) toxicity asserted by low degree of lipid peroxidation, insubstantial damage in root and shoot length, fresh and dry biomass, chlorophyll and leaf gas exchange parameters. Besides, plants showed a robust detoxification mechanism primarily by significant (P < 0.05) production of reduced glutathione and phytochelatins among other enzymatic and nonenzymatic antioxidants under these chelating agents. The present findings suggest that Indian mustard could be used as a potential phytoremediator of Cr(VI) under the combined application of EDTA and OA.

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“…For example, a study of Cu, Pb, Zn and Cd absorption efficiency in Zea mays L. and Chrysanthemum coronariumshowed that the EDTA agent had higher Pb absorption efficiency than the EDDS agent (Luo et al, 2006). The EDTA agent had higher Cr absorption efficiency than oxalic acid (Hsiao et al, 2007) and the EDTA agent had high heavy metal absorption efficiency from soil, but had limited ability to transfer this solution from root to leaf (Madrid et al, 2003).…”

Section: Efficiency Of Chelating Agents On Absorptionof Cr and Pb By mentioning

confidence: 99%

COMPARISON OF EDTA AND EDDS ENHANCTED PHYTOEXTRACTION OF Cr AND Pb FROM CONTAMINATED SOIL BY <i>ANANAS COMOSUS</i> (L.) MERR.

Sampanpanish¹,

Pojanaporn²

2014

American Journal of Agricultural and Biological Sciences

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The effects of chelating agents on Chromium (Cr) and lead (Pb) absorption were studied by planting pineapple, Ananas comosus (L.) Merr. in contaminated soil. All plant samples were grown in a nursery for 30 days and then separated into seven sets: Set (1) had nothing added (Blank); (2) had Pb added as Pb(II) Nitrate (Pb(NO 3 ) 2 ) at 500 mg kg −1 soil; (3) added Pb(II) nitrate and EDTA, a chelating agent; (4) contained both Pb (II) nitrate and EDDS, a second chelating agent; (5) only added Cr as potassium dichromate (K 2 Cr 2 O 7 ), at 400 mg kg −1 soil; (6) was treated with Cr (potassium dichromate) plus EDTA; and (7) contained both Cr (potassium dichromate) and EDDS. The chelating agent concentrations were 2 millimoles per kilogram soil. Soil and plant contamination levels were measured by analyzing the Cr, Cr(VI) and total Pb after growing for 30, 60, 90 and 120 days. The analysis divided the plant samples into two parts: Aboveground and underground. Plant growth was also analyzed by dry weight, root length and expression of toxicity through withered leaves and yellow leaf symptoms. The results of this study indicate that after 60 days, the EDTA agent had the highest Pb absorption efficiency, with the plant sample absorbing 288.14 mg Pb per kg soil in the aboveground part and 796.66 mg kg −1 soil in the underground part. The EDTA agent had high Cr absorption efficiency, with the plant sample absorbing Cr at 545.72 mg kg −1 soil in the aboveground part and 2267.99 mg kg −1 soil in the underground part after 90 days. The EDTA and EDDS agents did not affect pineapple growth and expression of toxicity symptoms were statistically significant (p≤0.05) compared with the control sets.

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Effects of chelators on chromium and nickel uptake by Brassica juncea on serpentine-mine tailings for phytoextraction

Cited by 62 publications

References 41 publications

Chemical composition of cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate soils

Chemical composition of cabbage (Brassica oleracea L. var. capitata) grown on acid sulfate soils

Interactive Effects of EDTA and Oxalic Acid on Chromium Uptake, Translocation and Photosynthetic Attributes in Indian Mustard (<i>Brassica juncea</i> L. var. Varuna)

COMPARISON OF EDTA AND EDDS ENHANCTED PHYTOEXTRACTION OF Cr AND Pb FROM CONTAMINATED SOIL BY <i>ANANAS COMOSUS</i> (L.) MERR.

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