Effect of DA-6 and EDTA alone or in combination on uptake, subcellular distribution and chemical form of Pb in Lolium perenne.


:The effects of growth-promoting hormone diethyl aminoethyl hexanoate (DA-6) and EDTA, either alone or in combination applied to original soil or lead (Pb) spiked soil on Pb phytoextraction, subcellular distribution and chemical forms in Lolium perenne were studied. EDTA addition alone significantly reduced plant biomass though it increased Pb accumulation (P<0.05). Foliar spray of DA-6 alone increased both plant biomass and Pb accumulation (P<0.05), with 10μM DA-6 being the most effective. DA-6 combined with EDTA compensated the adverse effect of the latter on plant growth, and resulted in a synergistic effect on Pb uptake and translocation, with the maximum accumulation occurring in the EDTA+10μM DA-6 treatment. At the subcellular level, about 35-66% of Pb was distributed in cell wall and 21-42% in soluble fraction, with a minority present in cellular organelles fraction. EDTA addition alone increased the proportion of Pb in soluble and cellular organelles fraction, while DA-6 detoxified Pb in plant by storing additional Pb in cell wall, and 10μM DA-6 was the most effective. Of the total Pb in plant shoot, 27-52% was NaCl extractable, 22-47% HAc extractable, followed by other fractions. Contrary to EDTA, DA-6 significantly decreased Pb migration in plant. These results suggest that Pb fixation by pectates and proteins in cell wall and compartmentalization by vacuole might be responsible for Pb detoxification in plant, and the combined use of EDTA and 10μM DA-6 appears to be optimal for improving the remediation efficiency of L. perenne for Pb contaminated soil.






He S,Wu Q,He Z




Has Abstract


2013-11-01 00:00:00














  • Ecotoxicity evaluation of selected sulfonamides.

    abstract::Sulfonamides (SAs) are a group of antibiotic drugs widely used in veterinary medicine. The contamination of the environment by these pharmaceuticals has raised concern in recent years. However, knowledge of their (eco)toxicity is still very basic and is restricted to just a few of these substances. Even though their t...


    pub_type: 杂志文章


    authors: Białk-Bielińska A,Stolte S,Arning J,Uebers U,Böschen A,Stepnowski P,Matzke M

    更新日期:2011-10-01 00:00:00

  • Graphitic carbon nitride (g-C3N4)-based photocatalysts for water disinfection and microbial control: A review.

    abstract::Microbial contamination in drinking water is of great concern around the world because of high pathogenic risks to humans. Semiconductor photocatalysis has aroused an increasing interest as a promising environmental remediation technology for water disinfection and microbial control. Among various photocatalysts, grap...


    pub_type: 杂志文章,评审


    authors: Zhang C,Li Y,Shuai D,Shen Y,Xiong W,Wang L

    更新日期:2019-01-01 00:00:00

  • Occurrence and congener specific profiles of polybrominated diphenyl ethers and their hydroxylated and methoxylated derivatives in breast milk from Catalonia.

    abstract::The presence of polybrominated diphenyl ethers (PBDEs) from mono to hepta brominated and 11 hydroxylated (OH-) and methoxylated (MeO-) PBDEs was examined in 37 breast milk samples collected from 11 mothers living in Barcelona. An extraction method based on accelerated solvent extraction followed by gas chromatography ...


    pub_type: 杂志文章


    authors: Lacorte S,Ikonomou MG

    更新日期:2009-01-01 00:00:00

  • Characterization of alkylphenol metabolites in fish bile by enzymatic treatment and HPLC-fluorescence analysis.

    abstract::Alkylphenol (AP) metabolites were characterized in the bile of Atlantic cod (Gadus morhua L.) after exposure to nine individual compounds (10mg/kg fish), 2-methylphenol (2-MP), 4-methylphenol (4-MP), 3,5-dimethylphenol (3,5-DMP), 2,4,6-trimethylphenol (2,4,6-TMP), 4-tert-butylphenol (4-t-BP), 4-tert-butyl-2-methylphen...


    pub_type: 杂志文章


    authors: Jonsson G,Stokke TU,Cavcic A,Jørgensen KB,Beyer J

    更新日期:2008-04-01 00:00:00

  • Removal of sulfadiazine and ciprofloxacin by clays and manganese oxides: Coupled sorption-oxidation kinetic model.

    abstract::Sorption onto clays (montmorillonite and kaolinite), oxidation and sorption by manganese oxides (synthesized MnO and natural MnO), and coupled sorption-oxidation experiments were conducted for the removal of antibiotics sulfadiazine (SDZ) and ciprofloxacin (CIP) at pH 5 and 8. Individual sorption and oxidation modelli...


    pub_type: 杂志文章


    authors: Septian A,Shin WS

    更新日期:2020-07-01 00:00:00

  • Volatile organic compounds in the surface waters of northern Greece.

    abstract::An investigation into the occurrence of volatile organic compounds (VOCs) was conducted for a period of two years in the surface waters of Northern Greece. Samples from four rivers and five lakes were taken seasonally and analyzed for VOCs. The analysis has been performed by purge-and-trap (PAT) gas chromatographic-ma...


    pub_type: 杂志文章


    authors: Kostopoulou MN,Golfinopoulos SK,Nikolaou AD,Xilourgidis NK,Lekkas TD

    更新日期:2000-03-01 00:00:00

  • Pollutants degradation performance and microbial community structure of aerobic granular sludge systems using inoculums adapted at mild and low temperature.

    abstract::Three aerobic granular sequencing batch reactors were inoculated using different inocula from Finland, Spain and a mix of both in order to investigate the effect over the degradation performance and the microbial community structure. The Finnish inoculum achieved a faster granulation and a higher depollution performan...


    pub_type: 杂志文章


    authors: Muñoz-Palazon B,Pesciaroli C,Rodriguez-Sanchez A,Gonzalez-Lopez J,Gonzalez-Martinez A

    更新日期:2018-08-01 00:00:00

  • Biosorption of arsenic from groundwater using Vallisneria gigantea plants. Kinetics, equilibrium and photophysical considerations.

    abstract::Arsenic (V) uptake from groundwater by using Vallisneria gigantea plants was studied using batch experiments. Reflectance and fluorescence of intact plants were investigated and changes in photophysical properties following arsenic absorption were reported. Good correlations have been found between arsenic concentrati...


    pub_type: 杂志文章


    authors: Iriel A,Lagorio MG,Fernández Cirelli A

    更新日期:2015-11-01 00:00:00

  • Biodegradation of tricresyl phosphate isomers by Brevibacillus brevis: Degradation pathway and metabolic mechanism.

    abstract::Tricresyl phosphates (TCPs), a typical sort of organophosphate flame retardants, has received extensive concerns due to its potential adverse effects. However, limited information is available on the efficient and safe removal methods of TCPs. In this regard, TCPs were tentatively biodegraded with Brevibacillus brevis...


    pub_type: 杂志文章


    authors: Liu Y,Yin H,Wei K,Peng H,Lu G,Dang Z

    更新日期:2019-10-01 00:00:00

  • Long-term changes of water quality in aquaculture-dominated lakes as revealed by sediment geochemical records in Lake Taibai (Eastern China).

    abstract::The rapid development and exploitation of the Yangtze River basin in order to ensure human food security and increase living space in recent decades has resulted in significant potential for degradation of water quality in the river and in hundreds of lakes. Understanding how lake environments have evolved to their pr...


    pub_type: 杂志文章


    authors: Zhang Y,Yu J,Su Y,Du Y,Liu Z

    更新日期:2019-11-01 00:00:00

  • Characterizing treated wastewaters of different industries using clustered fluorescence EEM-PARAFAC and FT-IR spectroscopy: implications for downstream impact and source identification.

    abstract::The quantity and spectroscopic features of dissolved organic matter (DOM) in treated wastewaters were studied for up to 57 facilities across 12 industrial categories to evaluate the potential influences of the effluents on downstream ecosystems and the feasibility of spectroscopic techniques in discriminating pollutio...


    pub_type: 杂志文章


    authors: Yang L,Han DH,Lee BM,Hur J

    更新日期:2015-05-01 00:00:00

  • Concentrations of trace elements in American alligators (Alligator mississippiensis) from Florida, USA.

    abstract::Concentrations of 28 trace elements (Li, Mg, Al, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, As, Se, Rb, Sr, Mo, Ag, Cd, In, Sn, Sb, Cs, Tl, Hg, Pb, and Bi) in the livers of juvenile and adult American alligators inhabiting two central Florida lakes, Lake Apopka (LA), and Lake Woodruff National Wildlife Refuge (LW) and one lag...


    pub_type: 杂志文章


    authors: Horai S,Itai T,Noguchi T,Yasuda Y,Adachi H,Hyobu Y,Riyadi AS,Boggs AS,Lowers R,Guillette LJ Jr,Tanabe S

    更新日期:2014-08-01 00:00:00

  • KOH-activated high surface area Douglas Fir biochar for adsorbing aqueous Cr(VI), Pb(II) and Cd(II).

    abstract::Biochar has become a popular research topic in sustainable chemistry for use both in agriculture and pollution abatement. To enhance aqueous Cr(VI), Pb(II) and Cd(II) removal efficiency, high surface area (535 m2/g) byproduct Douglas fir biochar (DFBC) from commercial syn-gas production obtained by fast pyrolysis (900...


    pub_type: 杂志文章


    authors: Herath A,Layne CA,Perez F,Hassan EB,Pittman CU Jr,Mlsna TE

    更新日期:2020-09-28 00:00:00

  • Effect of ZnFe2O4 doping on the photocatalytic activity of TiO2.

    abstract::The photocatalytic oxidation of the organic pollutants with the TiO2 as photocatalyst has been widely studied in the world, and many achievements have been got. The degradation of pollutants is highly related with the photocatalytic activity of TiO2. It is demonstrated that doping ions or oxides to TiO2 is one way to ...


    pub_type: 杂志文章


    authors: Liu GG,Zhang XZ,Xu YJ,Niu XS,Zheng LQ,Ding XJ

    更新日期:2004-06-01 00:00:00

  • Formation of haloacetonitriles and haloacetamides and their precursors during chlorination of secondary effluents.

    abstract::The formation of dichloroacetonitrile (DCAN), dichloroacetamide (DCAcAm) and trichloroacetamide (TCAcAm) during chlorination of secondary effluents was evaluated under different conditions. The formation of DCAN and DCAcAm increased, then decreased with increasing contact time and chlorine dose, while TCAcAm formation...


    pub_type: 杂志文章


    authors: Huang H,Wu QY,Tang X,Jiang R,Hu HY

    更新日期:2016-02-01 00:00:00

  • Heterogeneous Fenton-like catalyst for treatment of rhamnolipid-solubilized hexadecane wastewater.

    abstract::The treatment of wastewater containing hydrophobic organic pollutants solubilized by surfactants is of great environmental importance. In this work, the removal of rhamnolipid-solubilized hexadecane via a salicylic acid-methanol-acetone modified steel converter slag (SMA-SCS) catalyzed Fenton-like process was studied....


    pub_type: 杂志文章


    authors: Liu Y,Cheng M,Liu Z,Zeng G,Zhong H,Chen M,Zhou C,Xiong W,Shao B,Song B

    更新日期:2019-12-01 00:00:00

  • Monometal and competitive adsorption of heavy metals by sewage sludge-amended soil.

    abstract::Sewage sludge-amended soils may alter their ability to adsorb heavy metals over time, due to the decomposition of sludge-borne organic matter. Thus, we studied Cd, Ni, and Zn adsorption by a sewage sludge-amended soil (Typic Xerofluvent) before and after one-year incubation in both monometal and competitive systems. I...


    pub_type: 杂志文章


    authors: Antoniadis V,Tsadilas CD,Ashworth DJ

    更新日期:2007-06-01 00:00:00

  • Effect of magnetic ion exchange (MIEX®) on removal of emerging organic contaminants.

    abstract::In this study, the removal of nine emerging organic contaminants was investigated by using anion exchange resins. The selected compounds were carbamazepine, atrazine, simazine, estrone, bisphenol A, methylparaben, ethylparaben, propylparaben and butylparaben. Two different magnetic anionic exchanger resins were tested...


    pub_type: 杂志文章


    authors: López-Ortiz CM,Sentana-Gadea I,Varó-Galvañ PJ,Maestre-Pérez SE,Prats-Rico D

    更新日期:2018-10-01 00:00:00

  • Efficacy of the novel continuous sampling system for PCDD/Fs and unintentional persistent organic pollutants.

    abstract::Long-term sampling is essential for monitoring the air pollutants emitted from stack since it can monitor the pollutants emission continuously including the stages of start-up, shutdown and normal operation. However, commercial continuous sampling equipment such as AMESA faces the challenges of high weight and complic...


    pub_type: 杂志文章


    authors: Hsu YC,Chang SH,Chang MB

    更新日期:2020-03-01 00:00:00

  • The influence of selected bivalent metal ions on the photolysis of diethylenetriamine penta(methylenephosphonic acid).

    abstract::DTPMP is predominantly utilized as scale inhibitor. We investigated the reaction rates and degradation mechanism of DTPMP with and without addition of Fe2+, Mg2+ and Ca2+ by performing LC/MS and 31P NMR analyses. DTPMP undergoes conversion with and without addition of bivalent metal ions. The initial cleavage of DTPMP...


    pub_type: 杂志文章


    authors: Kuhn R,Jensch R,Bryant IM,Fischer T,Liebsch S,Martienssen M

    更新日期:2018-11-01 00:00:00

  • Investigating Microcystin-LR adsorption mechanisms on mesoporous carbon, mesoporous silica, and their amino-functionalized form: Surface chemistry, pore structures, and molecular characteristics.

    abstract::Microcystin-LR (MC-LR) is the most common cyanotoxin released from algal-blooms. The study investigated the MC-LR adsorption mechanisms by comparing adsorption performance of protonated mesoporous carbon/silica (MC-H, MS-H) and their amino-functionalized forms (MC-NH2 and MS-NH2) considering surface chemistry and pore...


    pub_type: 杂志文章


    authors: Park JA,Kang JK,Jung SM,Choi JW,Lee SH,Yargeau V,Kim SB

    更新日期:2020-05-01 00:00:00

  • Comparative hepatic in vitro depletion and metabolite formation of major perfluorooctane sulfonate precursors in Arctic polar bear, beluga whale, and ringed seal.

    abstract::Perfluorooctane sulfonate (PFOS) has been reported to be among the most concentrated persistent organic pollutants in Arctic marine wildlife. The present study examined the in vitro depletion of major PFOS precursors, N-ethyl-perfluorooctane sulfonamide (N-EtFOSA) and perfluorooctane sulfonamide (FOSA), as well as met...


    pub_type: 杂志文章


    authors: Letcher RJ,Chu S,McKinney MA,Tomy GT,Sonne C,Dietz R

    更新日期:2014-10-01 00:00:00

  • Research progress in sources, analytical methods, eco-environmental effects, and control measures of microplastics.

    abstract::Microplastics are plastic particles which are widely distributed in the environment. The pollution of microplastics in environment have attracted increasing attention in recent years. This paper reviews research progress in sources, analytical methods, eco-environmental effects and control in environment, and suggests...


    pub_type: 杂志文章,评审


    authors: Gong J,Xie P

    更新日期:2020-09-01 00:00:00

  • Mobility of atrazine from alginate-bentonite controlled release formulations in layered soil.

    abstract::The mobility of atrazine [6-chloro-N2-ethyl-N4-isopropyl-1,3,5-triazine-2,4-diamine] from alginate-bentonite-based controlled release (CR) formulations was investigated by using soil columns. Two CR formulations based on sodium alginate (14.0 g kg(-1), atrazine (6.0 g kg(-1), natural or acid-treated bentonite (50 g kg...


    pub_type: 杂志文章


    authors: Fernández-Pérez M,González-Pradas E,Villafranca-Sánchez M,Flores-Céspedes F

    更新日期:2001-04-01 00:00:00

  • Impact of soil water regime on degradation and plant uptake behaviour of the herbicide isoproturon in different soil types.

    abstract::The environmental fate of the worldwide used herbicide isoproturon was studied in four different, undisturbed lysimeters in the temperate zone of Middle Europe. To exclude climatic effects due to location, soils were collected at different regions in southern Germany and analyzed at a lysimeter station under identical...


    pub_type: 杂志文章


    authors: Grundmann S,Doerfler U,Munch JC,Ruth B,Schroll R

    更新日期:2011-03-01 00:00:00

  • Determination of cyclic volatile methylsiloxanes in water, sediment, soil, biota, and biosolid using large-volume injection-gas chromatography-mass spectrometry.

    abstract::Several methods were developed to detect the cyclic volatile methylsiloxanes (cVMSs) including octamethylcyclotetrasiloxane (D4), decamethylcyclopentasiloxane (D5), and dodecamethylcyclohexasiloxane (D6) in water, sediment, soil, biota, and biosolid samples. Analytical techniques employed to optimize measurement of th...


    pub_type: 杂志文章


    authors: Wang DG,Alaee M,Steer H,Tait T,Williams Z,Brimble S,Svoboda L,Barresi E,Dejong M,Schachtschneider J,Kaminski E,Norwood W,Sverko E

    更新日期:2013-10-01 00:00:00

  • Impact of plant growth promoting Pseudomonas monteilii PsF84 and Pseudomonas plecoglossicida PsF610 on metal uptake and production of secondary metabolite (monoterpenes) by rose-scented geranium (Pelargonium graveolens cv. bourbon) grown on tannery sludge

    abstract::Bacterial strains PsF84 and PsF610 were isolated from tannery sludge polluted soil, Jajmau, Kanpur, India. 16S rRNA gene sequence and phylogenetic analysis confirmed the taxonomic affiliation of PsF84 as Pseudomonas monteilii and PsF610 as Pseudomonas plecoglossicida. A greenhouse study was carried out with rose-scent...


    pub_type: 杂志文章


    authors: Dharni S,Srivastava AK,Samad A,Patra DD

    更新日期:2014-12-01 00:00:00

  • Removal of added nitrate in cotton burr compost, mulch compost, and peat: mechanisms and potential use for groundwater nitrate remediation.

    abstract::We conducted batch tests on the nature of removal of added nitrate in cotton burr compost, mulch compost, and sphagnum peat that may be potentially used in a permeable reactive barrier (PRB) for groundwater nitrate remediation. A rigorous steam autoclaving protocol (121 degrees C for 2h each day for three consecutive ...


    pub_type: 杂志文章


    authors: Su C,Puls RW

    更新日期:2007-01-01 00:00:00

  • Resolving the variability of CDOM fluorescence to differentiate the sources and fate of DOM in Lake Taihu and its tributaries.

    abstract::Taihu Basin is the most developed area in China, which economic development has resulted in pollutants being produced and discharged into rivers and the lake. Lake Taihu is located in the center of the basin, which is characterized by a complex network of rivers and channels. To assess the sources and fate of dissolve...


    pub_type: 杂志文章


    authors: Yao X,Zhang Y,Zhu G,Qin B,Feng L,Cai L,Gao G

    更新日期:2011-01-01 00:00:00

  • Transport and attenuation of dissolved glyphosate and AMPA in a stormwater wetland.

    abstract::Glyphosate is an herbicide used widely and increasingly since the early 1990s in production of many crops and in urban areas. However, knowledge on the transport of glyphosate and its degradation to aminomethylphosphonic acid (AMPA) in ecosystems receiving urban or agricultural runoff is lacking. Here we show that tra...


    pub_type: 杂志文章


    authors: Imfeld G,Lefrancq M,Maillard E,Payraudeau S

    更新日期:2013-01-01 00:00:00