Plant uptake and leaching potential upon application of amendments in soils spiked with heavy metals (Cd and Pb).

08:00 EDT 9th September 2019 | BioPortfolio

Summary of "Plant uptake and leaching potential upon application of amendments in soils spiked with heavy metals (Cd and Pb)."

The aim of this study was to assess the effects of soil amendments (organic and inorganic) on phytoavailability and leaching of cadmium (Cd) and lead (Pb) during enhanced phytoextraction. The vertical column study was carried out to investigate the metal leaching meanwhile studying plant biomass and metals uptake for phytoextraction by Pelargonium hortroum. For this purpose, soil amendments at several concentration levels, such as ethylene diaminetetraacetic acid (EDTA 0, 4, 5 mmol kg), ammonium nitrate (0, 8, 10 mmol kg), citric acid (0, 8, 10 mmol kg), compost (0, 8%, 10%) and titanium dioxide nanoparticles (TNPs, 0, 80, 100 mg kg) were used. Results revealed that EDTA efficiently improved Cd and Pb accumulation (mg kg) in shoots and roots. Cd accumulation was significantly increased by 270%, 44%, 145%, and 6.4% in shoot and 94%, 19%, 48% and 14% in root upon EDTA, ammonium nitrate, citric acid and TNPs application, respectively compared to the control without amendment (WA). Similarly, Pb accumulation was significantly increased by 71%, 58% and 52% in shoot and 88.8%, 70.6% and 64.6% in root upon exposure to higher levels of EDTA, citric acid and ammonium nitrate, respectively when compared to the WA control. Application of TNPs reduced the Pb-accumulation in shoots and roots by 33% and 28%, respectively. Similarly, the Pb-accumulation in shoots and roots was decreased by 39% and 35%, respectively upon compost addition. Plant biomass was significantly increased upon application of soil amendments, with the exception of EDTA. The maximum Cd and Pb uptake was found in citric acid amended soil. Leachate analysis revealed that the concentrations of Cd and Pb were increased by 109% and 101% in leachates upon EDTA application as compared to other amendments. In comparison with other amendments, citric acid may be recommended as an environmentally friendly alternative for non-biodegradable EDTA for enhanced phytoextraction of Cd and Pb.


Journal Details

This article was published in the following journal.

Name: Journal of environmental management
ISSN: 1095-8630
Pages: 109408


DeepDyve research library

PubMed Articles [19343 Associated PubMed Articles listed on BioPortfolio]

Conventional and novel techniques for the determination of Hg uptake by lettuce in amended agricultural peri-urban soils.

Peri-urban agriculture provides environmental benefits to the nearby urban areas. However, domestic and industrial infrastructures can be sources of pollution that can affect agricultural production. ...

Enrofloxacin and copper plant uptake by Phragmites australis from a liquid digestate: Single versus combined application.

Application of anaerobically digested sludges and manure (digestates) to agricultural fields reduces the need for fertilizer application, but might also pose environmental risks due to the introductio...

Rice straw biochar and phosphorus inputs have more positive effects on the yield and nutrient uptake of Lolium multiflorum than arbuscular mycorrhizal fungi in acidic Cd-contaminated soils.

The purpose of the study was to examine biochar amendment, phosphorus (P) fertilizer and arbuscular mycorrhizal fungi (AMF) on the yield, nutrient and cadmium (Cd) absorption of Lolium multiflorum in ...

Comparative effectiveness of different biochars and conventional organic materials on growth, photosynthesis and cadmium accumulation in cereals.

Although biochar and conventional organic materials have been widely studied for lowering cadmium (Cd) uptake by plants but information regarding their comparative effectiveness is lacking. In this st...

Effects of zeolite and vermiculite addition on exchangeable radiocaesium in soil with accelerated ageing.

Soil amendments with zeolite and vermiculite were expected to prevent radiocaesium (Cs) dissolution and uptake from the soil by plants. In this study, we investigated how zeolite and vermiculite added...

Clinical Trials [5266 Associated Clinical Trials listed on BioPortfolio]

The Influence of Dietary Plant Sterols and Plant Stanols on Cholesterol and Plant Sterol Levels in Atheromatous Plaques

This study aims to explore whether the increased supply of dietary plant sterols and plant stanols have any influence on serum levels of phytosterols and on consistency of carotid atheroma...

Lipid-lowering Effect of Plant Stanol Ester Yoghurt Drinks

The aim is to investigate the effects of yoghurt drinks containing two doses of plant stanol ester either with or without added camelina oil on the serum cholesterol levels in moderately h...

Dietary Phytosterols and Human Aortic Valve

This randomized controlled double-blind intervention study unravels influence of dietary plant sterols and stanols on the structure and the sterol composition of the human aortic valve. Th...

Genetic Basis for Prediction of Non-responders to Dietary Plant Sterol Intervention

The objective of the present Mitacs project is to determine and utilize information on associations between genetic predisposition pertaining to multiple single nucleotide polymorphisms (S...

Plant Stanol Esters and Preventing Asthma Symptoms

Plant stanols are known to lower low-density lipoprotein cholesterol. However, studies have suggested that these compounds also influence the immune system. Asthmatic responses are predomi...

Medical and Biotech [MESH] Definitions

Strategies required by the US Food and Drug Administration (FDA) Amendments Act of 2007 when a question exists as to whether the benefits of a drug outweigh its risks. These constitute a safety plan with several potential components, including a medication guide, a communication plan, elements to ensure safe use and an implementation system to help guide the prescribers, pharmacists and patients.

Drugs that inhibit the transport of neurotransmitters into axon terminals or into storage vesicles within terminals. For many transmitters, uptake determines the time course of transmitter action so inhibiting uptake prolongs the activity of the transmitter. Blocking uptake may also deplete available transmitter stores. Many clinically important drugs are uptake inhibitors although the indirect reactions of the brain rather than the acute block of uptake itself is often responsible for the therapeutic effects.

Improving the NUTRITIONAL VALUE of plant foods by augmenting the plant's environment, by using PLANT BREEDING, or by GENETIC ENGINEERING plants to increase their ability to synthesize VITAMINS or uptake essential NUTRIENTS from the soil.

Drugs that block the transport of DOPAMINE into axon terminals or into storage vesicles within terminals. Most of the ADRENERGIC UPTAKE INHIBITORS also inhibit dopamine uptake.

Uptake of substances by the body, tissues, or cells. The uptake may occur by various forms of BIOLOGICAL TRANSPORT or by simple DIFFUSION.

Quick Search

DeepDyve research library

Searches Linking to this Article