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Enhanced Phytoextraction of Lead from Artificially Contaminated Soil by Mirabilis jalapa with Chelating Agents. 2017

Li Yan, and Cuilan Li, and Jinjing Zhang, and Odeshnee Moodley, and Shuoran Liu, and Chang Lan, and Qiang Gao, and Wenjing Zhang
College of Resource and Environmental Science, Jilin Agricultural University, Changchun, 130118, China.

A microcosm experiment was conducted to compare how different chelating agents enhance the phytoextraction of lead (Pb) by Mirabilis jalapa from an artificially Pb-contaminated soil. Chelating agents used included ethylene diamine tetraacetic acid (EDTA), nitrilotriacetic acid (NTA), ethylene diamine disuccinic acid (EDDS), oxalic acid, humic acid, citric acid and tartaric acid, with concentrations ranging from 0 to 2000 mg/kg. Results show that with increasing concentrations of chelating agents, the concentrations, bioaccumulation coefficients, and translocation factors of Pb in M. jalapa gradually increased. Of all chelating agents used, the concentrations, bioaccumulation coefficients and translocation factors of Pb in M. jalapa were higher for EDTA and NTA than for the other chelating agents. Given the potential environmental risks of EDTA, we recommend NTA be used as a suitable chelating agent to increase the phytoremediation of Pb-contaminated soil with M. jalapa.

UI MeSH Term Description Entries
D007854 Lead A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.
D002614 Chelating Agents Chemicals that bind to and remove ions from solutions. Many chelating agents function through the formation of COORDINATION COMPLEXES with METALS. Chelating Agent,Chelator,Complexons,Metal Antagonists,Chelators,Metal Chelating Agents,Agent, Chelating,Agents, Chelating,Agents, Metal Chelating,Antagonists, Metal,Chelating Agents, Metal
D004492 Edetic Acid A chelating agent that sequesters a variety of polyvalent cations such as CALCIUM. It is used in pharmaceutical manufacturing and as a food additive. EDTA,Edathamil,Edetates,Ethylenediaminetetraacetic Acid,Tetracemate,Calcium Disodium Edetate,Calcium Disodium Versenate,Calcium Tetacine,Chelaton 3,Chromium EDTA,Copper EDTA,Coprin,Dicobalt EDTA,Disodium Calcitetracemate,Disodium EDTA,Disodium Ethylene Dinitrilotetraacetate,Distannous EDTA,Edetate Disodium Calcium,Edetic Acid, Calcium Salt,Edetic Acid, Calcium, Sodium Salt,Edetic Acid, Chromium Salt,Edetic Acid, Dipotassium Salt,Edetic Acid, Disodium Salt,Edetic Acid, Disodium Salt, Dihydrate,Edetic Acid, Disodium, Magnesium Salt,Edetic Acid, Disodium, Monopotassium Salt,Edetic Acid, Magnesium Salt,Edetic Acid, Monopotassium Salt,Edetic Acid, Monosodium Salt,Edetic Acid, Potassium Salt,Edetic Acid, Sodium Salt,Ethylene Dinitrilotetraacetate,Ethylenedinitrilotetraacetic Acid,Gallium EDTA,Magnesium Disodium EDTA,N,N'-1,2-Ethanediylbis(N-(carboxymethyl)glycine),Potassium EDTA,Stannous EDTA,Versenate,Versene,Acid, Edetic,Acid, Ethylenediaminetetraacetic,Acid, Ethylenedinitrilotetraacetic,Calcitetracemate, Disodium,Dinitrilotetraacetate, Disodium Ethylene,Dinitrilotetraacetate, Ethylene,Disodium Versenate, Calcium,EDTA, Chromium,EDTA, Copper,EDTA, Dicobalt,EDTA, Disodium,EDTA, Distannous,EDTA, Gallium,EDTA, Magnesium Disodium,EDTA, Potassium,EDTA, Stannous,Edetate, Calcium Disodium,Ethylene Dinitrilotetraacetate, Disodium,Tetacine, Calcium,Versenate, Calcium Disodium
D005029 Ethylenediamines Derivatives of ethylenediamine (the structural formula NH2CH2CH2NH2).
D001673 Biodegradation, Environmental Elimination of ENVIRONMENTAL POLLUTANTS; PESTICIDES and other waste using living organisms, usually involving intervention of environmental or sanitation engineers. Bioremediation,Phytoremediation,Natural Attenuation, Pollution,Environmental Biodegradation,Pollution Natural Attenuation
D012987 Soil The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants. Peat,Humus,Soils
D012989 Soil Pollutants Substances which pollute the soil. Use for soil pollutants in general or for which there is no specific heading. Soil Pollutant,Pollutant, Soil,Pollutants, Soil
D052918 Environmental Restoration and Remediation Restoration of an environment, ecosystem, or habitat that was physically damaged during land development or by natural disaster, or contaminated by ENVIRONMENTAL POLLUTANTS. This is accomplished by various chemical, biological, and bulk movement methods, in conjunction with ENVIRONMENTAL MONITORING. Environmental Cleanup,Environmental Remediation,Environmental Restoration,Pollution Remediation,Site Remediation,Cleanup, Environmental,Cleanups, Environmental,Environmental Cleanups,Environmental Remediations,Remediation, Environmental,Remediation, Pollution,Remediation, Site,Remediations, Environmental,Remediations, Site,Restoration, Environmental,Site Remediations
D039282 Mirabilis A plant genus of the family NYCTAGINACEAE. Members contain Mirabilis antiviral protein (a ribosome-inactivating protein). Mirabili

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