+ Translate
+ Most Popular
Spermatogenic and steroidogenic impairment after chromium treatment in rats
Prediction of enthalpy of formation based on refined crystal structures of multisite compounds; Part 1, Theories and examples
Intrastromal photorefractive keratectomy for myopia by Nd:YLF picosecond laser
Teachers' beliefs about the role of prior language knowledge in learning and how these influence teaching practices
Classification and genesis of submarine iron-manganese deposits
Insecta a Cl. G. N. Potanin in China et in Mongolia novissime lecta. XVII. Hemiptera-Heteroptera
On the occurrence of the splendid genus Machaerothrix Haupt in Tsushima, with some remarks on the genus (Hymenoptera, Pompilidae)
Enamel craze lines
Gynecologic examination of the child and the adolescent
Periosteal osteoclasts, skeletal development and ageing
Fibrodysplasia ossificans progressiva in a Nigerian: a case report
The chronically ill patient with anorexia nervosa development, phenomenology, and therapeutic considerations
Kummelonautilus taiwanum sp. nov. (Nautilida) from the early Miocene Shihmen Formation, Chungliao, Nantou, west-central Taiwan
Efficacy of Droncit against Dipylidium caninum in dogs
Pierids of the genus Euchloe Klots (Lepidoptera, Pieridae) from Siberia and the Far East.
C5A anaphylatoxin and its seven transmembrane-segment receptor
Failure to practice evidence-based medicine: why do physicians not treat patients with heart failure with angiotensin-converting enzyme inhibitors?
Empirical comparisons of proportional hazards regression, Poisson regression, and logistic regression in the analysis of occupational cohort data
Pollination of flowers of sweet and sour cherries
Isopodi terrestri raccolti nell' Estremo Oriente
Morphometric observations on Dipylidium caninum from dogs and cats in Austria
Chelation effectiveness of zinc proteinates demonstrated
Alopecia--a psychosomatic disease picture? I. Review of the literature
Monitoring equity in health and healthcare: a conceptual framework
Hemodynamic evaluation of the Biocor heterologous prosthesis

EDTA and HEDTA effects on Cd, Cr, and Ni uptake by Helianthus annuus

EDTA and HEDTA effects on Cd, Cr, and Ni uptake by Helianthus annuus

Chemosphere 45(1): 21-28

ISSN/ISBN: 0045-6535

PMID: 11572587

DOI: 10.1016/s0045-6535(01)00031-5

Phytoremediation has shown great potential as an alternative treatment for the remediation of heavy-metal-contaminated soils and groundwater. However, the lack of a clear understanding pertaining to metal uptake/translocation mechanisms, enhancement amendments, and external effects on phytoremediation has hindered its full-scale application. The objective of this research was to investigate the ability of synthetic chelators for enhancing the phytoremediation of cadmium-, chromium- and nickel-contaminated soil. Ethylenediaminetriacetic acid (EDTA) and N-(2-hydroxyethyl)-ethylenediaminetriacetic acid (HEDTA) were applied to the soil at various dosages to elevate metal mobility. Uptake into and translocation within Helianthus annuus was determined. It was found that EDTA at a rate of 0.5 g/kg significantly increased the shoot concentrations of Cd and Ni from 34 and 15 to 115 and 117 mg/kg, respectively. The total removal efficiency for EDTA was 59 microg/plant. HEDTA at the same application rate resulted in a total metal uptake of 42 microg/plant. These research demonstrated that chelator enhancement is plant- and metal-specific and is subjective to inhibition when multiple heavy metals are present. Results also showed that chelator toxicity reduced the plant's biomass, thereby decreasing the amount of metal accumulation.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 003720367

Download citation: RISBibTeXText

Related references

Final report on the safety assessment of EDTA, calcium disodium EDTA, diammonium EDTA, dipotassium EDTA, disodium EDTA, TEA-EDTA, tetrasodium EDTA, tripotassium EDTA, trisodium EDTA, HEDTA, and trisodium HEDTA. International Journal of Toxicology 21(Suppl): 95-142, 2002

Effects of EDTA, Sheep Manure Extract, and Their Application Time on Cd Uptake by Helianthus annuus from a Calcareous Mine Soil. Soil and Sediment Contamination 19(3): 378-390, 2010

Greenhouse evaluation of EDTA effectiveness at enhancing Cd, Cr, and Ni uptake in Helianthus annuus and Thlaspi caerulescens. Journal of Soils and Sediments 8(2): 116-122, 2008

Enhanced phytoextraction: II. Effect of EDTA and citric acid on heavy metal uptake by Helianthus annuus from a calcareous soil. International Journal of Phytoremediation 7(2): 143-152, 2005

The effect of EDTA on Helianthus annuus uptake, selectivity, and translocation of heavy metals when grown in Ohio, New Mexico and Colombia soils. Chemosphere 58(8): 1087-1095, 2005

Attitudine combinatoria in lince pure di girasole (Helianthus annuus L.) - Aptitude à la combinaison de lignées pures de tournesol (Helianthus annuus L.) - Combining ability in inbred lines of sunflower (Helianthus annuus L.). Sementi Elette 36(3-4): 3-5, 1990

Superficie fogliare e caratteri quantitativi in girasole (Helianthus annuus L.) - Superficie foliaire et caractère quantitatif chez le tournesol (Helianthus annuus L.) - Leaf area and quantitative characters on sunflower (Helianthus annuus L.). Sementi Elette 34(6): 3-8, 1988

Untersuchungen über die Bestäubungs- und Befruchtungsverhältnisse der Sonnenblume (Helianthus annuus L.) - Etude des relations entre pollinisation et fertilisation chez le tournesol (Helianthus annuus L.) - Studies on pollination and fertilisation relationships in sunflowers (Helianthus annuus L.). Angewandte Botanik 63(5-6): 429-437, 1989

Biosintesi degli acilgliceroli nei semi di Helianthus annuus L. nel corso della maturazione - Biosynthèse des glycérides dans les graines d'Helianthus annuus L. au cours de la maturation - Glyceride biosynthesis in Helianthus annuus L. seeds during maturation. Agricoltura Mediterranea (Pisa) 118(3): 237-245, 1988

Vliv inzuchtu na alejnatost Fo nažek slunečnice (Helianthus annuus L.) - Effet de l'inbreeding sur la teneur en huile dans les graines de la génération Fo du tournesol (Helianthus annuus L.) - The effect of inbreeding on the oil content of the Fo seeds of sunflower (Helianthus annuus L.). Sb. Uvtiz., Genet. Slechteni 20(1): 81-84, 1984

Antheren- und Ovarienkultur von Sonnenblumen (Helianthus annuus L.) - Culture d'anthère et d'ovaire de tournesol (Helianthus annuus L.) - Anther and ovary culture of Helianthus annuus L. Landbauforsch. Voelkenrode 35(3): 153-156, 1985

Acúmulo de matéria seca por duas cultivares de girassol (Helianthus annuus L.), em função da idade e da adubação - Accumulation de matière sèche chez deux cultivars de tournesol (Helianthus annuus L.) en fonction de l'âge et de la fertilisation - Dry matter production by two cultivars on sunflower (Helianthus annuus L.). Anais da Escola Superior de Agricultura Luiz de Queiroz 41(1): 21-36, 1984

In vitro Spross- und Wurzelregeneration aus Gewebeteilen der Sonnenblume (Helianthus annuus L.) - Développement in vitro de tiges et de racines à partir de différents tissus chez le tournesol (Helianthus annuus L.) - In vitro shoot- and root development of different sunflower tissue (Helianthus annuus L.). Landbauforsch. Voelkenrode 36(2): 127-129, 1986

Avaliação de métodos de detecção de fungos em sementes de girassol (Helianthus annuus L.) - Evaluation de la détection des maladies des semences du tournesol (Helianthus annuus L.) - Evaluation of methods for the detection of seed-borne fungi in sunflower (Helianthus annuus L.) seeds. Summa Phytopathol 10(3-4): 252-259, 1984

Aplicación del modelo de Hayman-Jinks al estudio de la genética del contenido en grasa de girasol (Helianthus annuus L.) - Application du modèle de Hayman-Jinks à l'étude de la génétique de la teneur en huile du tournesol (Helianthus annuus L.) - The genetics of oil content in sunflower (Helianthus annuus L.). Anales de la Estacion Experimental de Aula dei 19(1-2): 31-36, 1988