Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.401.716 [Categoria DeCS]
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[PMID]:28570890
[Au] Autor:Nadgórska-Socha A; Kandziora-Ciupa M; Trzesicki M; Barczyk G
[Ad] Endereço:University of Silesia, Department of Ecology, Bankowa 9, PL 40-007, Katowice, Poland. Electronic address: aleksandra.nadgorska-socha@us.edu.pl.
[Ti] Título:Air pollution tolerance index and heavy metal bioaccumulation in selected plant species from urban biotopes.
[So] Source:Chemosphere;183:471-482, 2017 Sep.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:This research was carried out on plants Taraxacum officinale, Plantago lanceolata, Betula pendula and Robinia pseudoacacia growing in urban biotopes with different levels of heavy metal contamination in the city of Dabrowa Górnicza (southern Poland). Based on the pollution index, the highest heavy metal contamination was determined in the site 4 (connected with industry emitters) and 6 (high traffic). The metal accumulation index (MAI) values ranged within the biotopes in Dabrowa Górnicza between 7.3 and 20.6 for R. pseudoacacia, 4.71-23.1 for P. lanceolata, 4.68-28.1 for T. officinale and 10.5-27.2 for B. pendula. Increasing tendency in proline content in biotopes connected with high traffic was found in the leaves of investigated plants (except R. pseudoacacia). Similar tendency was observed for ascorbic acid content in the foliage of the plants as well as in T. officinalle in stands connected industrial emission. Non-protein thiols content increased especially in the leaves of R. pseudoacacia in biotopes with high traffic emissions as well as in T. officinale in stands connected with industry. The mean values of APTI (Air Pollution Tolerance Index) within the city of Dabrowa Górnicza for investigated plants were found in the following ascending order P. lanceolata < R. pseudoacacia < B. pendula < T. officinale. Among the investigated plants B. pendula and T. officinale may be postulated as appropriate plants in urban areas with considerable soil and air contamination, especially with heavy metals. The results indicate that species deemed tolerant according to APTI are suitable plants in barriers areas to combat atmospheric pollution.
[Mh] Termos MeSH primário: Poluentes Atmosféricos/análise
Monitoramento Ambiental/métodos
Metais Pesados/análise
Folhas de Planta/metabolismo
[Mh] Termos MeSH secundário: Poluentes Atmosféricos/metabolismo
Ácido Ascórbico/análise
Betula/química
Betula/metabolismo
Cidades
Metais Pesados/metabolismo
Modelos Biológicos
Folhas de Planta/química
Plantago/química
Plantago/metabolismo
Polônia
Robinia/química
Robinia/metabolismo
Estações do Ano
Poluentes do Solo/análise
Especificidade da Espécie
Taraxacum/química
Taraxacum/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Air Pollutants); 0 (Metals, Heavy); 0 (Soil Pollutants); PQ6CK8PD0R (Ascorbic Acid)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170915
[Lr] Data última revisão:
170915
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170602
[St] Status:MEDLINE


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[PMID]:28497296
[Au] Autor:Gang L; Jun L; Yexin L; Ting W; Yazhuo L; Xinyang F
[Ad] Endereço:College of Land and Environment, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China. lvgang2637@126.com.
[Ti] Título:Preferential flow characteristics of reclaimed mine soils in a surface coal mine dump.
[So] Source:Environ Monit Assess;189(6):266, 2017 Jun.
[Is] ISSN:1573-2959
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:There are a large number of macropores/tubular channels of a few centimeters and plant roots in reclaimed dump soils, which are the main reasons for the formation of soil macropores and soil preferential flow. To systematically study the morphological characteristics and variation of soil preferential flow for different reclaimed vegetations in a dump, a dye-staining experiment and physical and chemical analysis were carried out to investigate the formation mechanism and influencing factors of soil preferential flow in the vegetation restoration process. The results indicate that there were differences in the soil water breakthrough curves for different plots. The macropore effluent rate generally increased at first and then tended to stabilize. The soil steady effluent rate decreased with increasing soil depth, which reached the maximum and minimum values at the depths of 0∼5 cm (0.0193∼0.0315 mm s ) and 50∼60 cm (0.0028∼0.0035 mm s ), respectively. Furthermore, the radius of soil macropores under different types of reclaimed vegetation ranged from 0.03 to 4.71 mm, most of which ranged from 0.11 to 2.36 mm. The soil macroporosity of different reclaimed vegetation types ranged from 0.03 to 16.58%, which was significantly greater than 5%. The soil macroporosity determined 65% of the variation in the steady effluent rate and 42% of the variation in the saturated hydraulic conductivity. Furthermore, the dye coverage ratio decreased as the soil layer depth increased in different plots, and there were some differences in each plot. The maximum dye coverage ratio occurred in the 0∼5 cm soil layer, which reached 90.37%. The dye coverage ratio at a depth of 0∼60 cm in six plots followed the order of Robinia pseudoacacia (26.48%) > Ulmus pumila (20.12%) > mixed forest (17.32%) > farmland (15.06%) > shrub (13.97%) > weeds (10.07%). The soil preferential flow mostly occurred in the 0∼40 cm soil depth layer, which occupied more than 93% of the total soil profile (0∼60 cm). Moreover, a Pearson correlation was used to analyze the relationship between environmental factors (soil, water, and plant factors) and the dye coverage ratio. The dye coverage ratio of soil preferential flow under different reclamation vegetations was very significantly or significantly positively correlated with the gravel content, mean radius of soil macropores, soil saturated hydraulic conductivity, root weight density, and root length density, which promoted the formation and development of soil preferential flow. This study will provide a scientific basis for understanding the formation mechanism and perfecting the research system of soil preferential flow, vegetation restoration, and reconstruction in a dump; furthermore, this research offers significance guidance in the construction of green mines and the development of regional economics.
[Mh] Termos MeSH primário: Minas de Carvão
Monitoramento Ambiental
Instalações de Eliminação de Resíduos
[Mh] Termos MeSH secundário: Nucleotídeos de Desoxiuracil
Florestas
Robinia
Solo/química
Movimentos da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Deoxyuracil Nucleotides); 0 (Soil); 964-26-1 (2'-deoxyuridylic acid)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170513
[St] Status:MEDLINE
[do] DOI:10.1007/s10661-017-5977-4


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[PMID]:28407532
[Au] Autor:Wang J; Gu D; Wang M; Guo X; Li H; Dong Y; Guo H; Wang Y; Fan M; Yang Y
[Ad] Endereço:School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
[Ti] Título:Rational approach to solvent system selection for liquid-liquid extraction-assisted sample pretreatment in counter-current chromatography.
[So] Source:J Chromatogr B Analyt Technol Biomed Life Sci;1053:16-19, 2017 May 15.
[Is] ISSN:1873-376X
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:A rational liquid-liquid extraction approach was established to pre-treat samples for high-speed counter-current chromatography (HSCCC). n-Hexane-ethyl acetate-methanol-water (4:5:4:5, v/v) and (1:5:1:5, v/v) were selected as solvent systems for liquid-liquid extraction by systematically screening K of target compounds to remove low- and high-polarity impurities in the sample, respectively. After liquid-liquid extraction was performed, 1.4g of crude sample II was obtained from 18.5g of crude sample I which was extracted from the flowers of Robinia pseudoacacia L., and then separated with HSCCC by using a solvent system composed of n-hexane-ethyl acetate-methanol-water (1:2:1:2, v/v). As a result, 31mg of robinin and 37mg of kaempferol 7-O-α-l-rhamnopyranoside were isolated from 200mg of crude sample II in a single run of HSCCC. A scale-up separation was also performed, and 160mg of robinin with 95% purity and 188mg of kaempferol 7-O-α-l-rhamnopyranoside with 97% purity were produced from 1.2g of crude sample II.
[Mh] Termos MeSH primário: Distribuição Contracorrente/métodos
Flavonoides/isolamento & purificação
Glicosídeos/isolamento & purificação
Quempferóis/isolamento & purificação
Extração Líquido-Líquido/métodos
Extratos Vegetais/química
Robinia/química
[Mh] Termos MeSH secundário: Acetatos/química
Hexanos/química
Metanol/química
Solventes/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Acetates); 0 (Flavonoids); 0 (Glycosides); 0 (Hexanes); 0 (Kaempferols); 0 (Plant Extracts); 0 (Solvents); 0 (kaempferol-7-O-alpha-L-rhamnopyranoside); 2DDG612ED8 (n-hexane); 75RT1VGM60 (robinin); 76845O8NMZ (ethyl acetate); Y4S76JWI15 (Methanol)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170531
[Lr] Data última revisão:
170531
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170414
[St] Status:MEDLINE


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[PMID]:28293829
[Au] Autor:Burney OT; Redente EF; Lambert CE
[Ad] Endereço:John T Harrington Forestry Research Center, College of Agriculture, Consumer and Environmental Sciences, New Mexico State University, PO Box 359, Mora, NM, 87732, USA. oburney@nmsu.edu.
[Ti] Título:Plant growth in amended molybdenum mine waste rock.
[So] Source:Environ Sci Pollut Res Int;24(12):11215-11227, 2017 Apr.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:This greenhouse study examined the use of organic and inorganic soil amendments in waste rock material from the former Questa Molybdenum Mine in northern New Mexico to promote beneficial soil properties. Waste rock material was amended with 11 soil amendment treatments that included municipal composted biosolids, Biosol®, inorganic fertilizer, and two controls (pure waste rock and sand). Elymus trachycaulus and Robinia neomexicana growth performance and plant chemistry were assessed across all treatments over a period of 99 and 141 days, respectively. Even though waste rock material had more than 200 times the molybdenum concentration of native soils, adverse effects were not observed for either species. The two main limiting factors in this study were soil nutritional status and soil water retention. The biosolid amendment was found to provide the greatest buffer against these limiting factors due to significant increases in both nutrition and soil water retention. As a result, both species responded with the highest levels of biomass production and the least amount of required water demands. Use of organic amendments such as biosolids, even though short lived in the soil, may provide plants the necessary growth stimulus to become more resilient to the harsh conditions found on many mine reclamation sites.
[Mh] Termos MeSH primário: Elymus/crescimento & desenvolvimento
Mineração
Molibdênio/química
Robinia/crescimento & desenvolvimento
Poluentes do Solo/química
[Mh] Termos MeSH secundário: Elymus/efeitos dos fármacos
Fertilizantes
New Mexico
Robinia/efeitos dos fármacos
Solo/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fertilizers); 0 (Soil); 0 (Soil Pollutants); 81AH48963U (Molybdenum)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170316
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-017-8716-z


  5 / 198 MEDLINE  
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[PMID]:28283981
[Au] Autor:Zhou J; Jiang Z; Ma J; Yang L; Wei Y
[Ad] Endereço:School of Horticulture and Landscape Architecture, Institute of Science and Technology of Henan, Xinxiang, Henan, 453003, China.
[Ti] Título:The effects of lead stress on photosynthetic function and chloroplast ultrastructure of Robinia pseudoacacia seedlings.
[So] Source:Environ Sci Pollut Res Int;24(11):10718-10726, 2017 Apr.
[Is] ISSN:1614-7499
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:In this experiment, the effects of different lead (Pb) concentrations (0, 200, 600, 1000, 1400 mg kg ) on photosynthesis and chlorophyll fluorescence in Robinia pseudoacacia seedlings were examined. As Pb concentration increased, chlorophyll a, chlorophyll b, total chlorophyll content, net photosynthetic rate, transpiration rate, stomatal conductance (g ), and mesophyll intercellular carbon dioxide concentration were gradually reduced. Maximal photochemical efficiency, photochemical quenching, and quantum yield also decreased. However, the initial fluorescence and nonphotochemical quenching gradually increased. Chloroplasts swelled owing to local plasmolysis and lost most of their starch content, and their thylakoid lamellae gradually became disordered and loosely packed. When the chloroplast envelope was lost under high Pb stress (≥1000 mg kg ), lipid globules were released into the surrounding mesophyll cell. Multiple regression analysis showed that g and inactivity of the PSII reaction center had the greatest effect on photosynthetic function, whereas inhibition of electron transport had minimal effects on black locust seedlings under Pb stress.
[Mh] Termos MeSH primário: Robinia
Plântulas/efeitos dos fármacos
[Mh] Termos MeSH secundário: Clorofila/metabolismo
Cloroplastos/metabolismo
Fluorescência
Fotossíntese/efeitos dos fármacos
Folhas de Planta/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
1406-65-1 (Chlorophyll); 5712ZB110R (chlorophyll b); YF5Q9EJC8Y (chlorophyll a)
[Em] Mês de entrada:1706
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170312
[St] Status:MEDLINE
[do] DOI:10.1007/s11356-017-8713-2


  6 / 198 MEDLINE  
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[PMID]:28061412
[Au] Autor:Labidi S; Firmin S; Verdin A; Bidar G; Laruelle F; Douay F; Shirali P; Fontaine J; Lounès-Hadj Sahraoui A
[Ad] Endereço:Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV), Université du Littoral Côte d'Opale, SFR Condorcet FR CNRS 3417, 50, rue Ferdinand Buisson, F-62228 Calais cedex, France; Université de Carthage, Laboratoire des Sciences Horticoles LR13AGR01, Institut National Agronomique de Tu
[Ti] Título:Nature of fly ash amendments differently influences oxidative stress alleviation in four forest tree species and metal trace element phytostabilization in aged contaminated soil: A long-term field experiment.
[So] Source:Ecotoxicol Environ Saf;138:190-198, 2017 Apr.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Aided phytostabilization using coal fly ashes (CFAs) is an interesting technique to clean-up polluted soils and valorizing industrial wastes. In this context, our work aims to study the effect of two CFAs: silico-aluminous (CFA1) and sulfo-calcic (CFA2) ones, 10 years after their addition, on the phytostabilization of a highly Cd (cadmium), Pb (lead) and Zn (zinc) contaminated agricultural soil, with four forest tree species: Robinia pseudoacacia, Alnus glutinosa, Acer pseudoplatanus and Salix alba. To assess the effect of CFAs on trees, leaf fatty acid composition, malondialdehyde (MDA), oxidized and reduced glutathione contents ratio (GSSG: GSH), 8-hydroxy-2'-deoxyguanosine (8-OHdG), Peroxidase (PO) and Superoxide dismutase (SOD) activities were examined. Our results showed that CFA amendments decreased the CaCl extractable fraction of Cd and Zn from the soil. However, no significant effect was observed on metal trace element (MTE) concentrations in leaves. Fatty acid percentages were only affected by the addition of sulfo-calcic CFA. The most affected species were A. glutinosa and R. pseudoacacia in which C16:0, C18:0 and C18:2 percentages increased significantly whereas the C18:3 decreased. The addition of sulfo-calcic CFA induced the antioxidant systems response in tree leaves. An increase of SOD and POD activities in leaves of trees planted on the CFA2-amended plot was recorded. Conversely, silico-aluminous CFA generated a reduction of lipid and DNA oxidation associated with the absence or low induction of anti-oxidative processes. Our study evidenced oxidative stress alleviation in tree leaves due to CFA amendments. MTE mobility in contaminated soil and their accumulation in leaves differed with the nature of CFA amendments and the selected tree species.
[Mh] Termos MeSH primário: Cinza de Carvão
Estresse Oxidativo
Folhas de Planta/metabolismo
Poluentes do Solo/análise
Solo/química
Árvores/metabolismo
[Mh] Termos MeSH secundário: Acer
Alnus
Biodegradação Ambiental
Cádmio/análise
Desoxiguanosina/análogos & derivados
Desoxiguanosina/metabolismo
Ácidos Graxos/metabolismo
Glutationa/metabolismo
Chumbo/análise
Malondialdeído/metabolismo
Peroxidase/metabolismo
Folhas de Planta/química
Folhas de Planta/enzimologia
Robinia
Salix
Superóxido Dismutase/metabolismo
Fatores de Tempo
Oligoelementos/análise
Zinco/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Coal Ash); 0 (Fatty Acids); 0 (Soil); 0 (Soil Pollutants); 0 (Trace Elements); 00BH33GNGH (Cadmium); 2P299V784P (Lead); 4Y8F71G49Q (Malondialdehyde); 88847-89-6 (8-oxo-7-hydrodeoxyguanosine); EC 1.11.1.7 (Peroxidase); EC 1.15.1.1 (Superoxide Dismutase); G9481N71RO (Deoxyguanosine); GAN16C9B8O (Glutathione); J41CSQ7QDS (Zinc)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170107
[St] Status:MEDLINE


  7 / 198 MEDLINE  
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[PMID]:27888422
[Au] Autor:Shigeto J; Ueda Y; Sasaki S; Fujita K; Tsutsumi Y
[Ad] Endereço:Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812-8581, Japan.
[Ti] Título:Enzymatic activities for lignin monomer intermediates highlight the biosynthetic pathway of syringyl monomers in Robinia pseudoacacia.
[So] Source:J Plant Res;130(1):203-210, 2017 Jan.
[Is] ISSN:1618-0860
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:Most of the known 4-coumarate:coenzyme A ligase (4CL) isoforms lack CoA-ligation activity for sinapic acid. Therefore, there is some doubt as to whether sinapic acid contributes to sinapyl alcohol biosynthesis. In this study, we characterized the enzyme activity of a protein mixture extracted from the developing xylem of Robinia pseudoacacia. The crude protein mixture contained at least two 4CLs with sinapic acid 4-CoA ligation activity. The crude enzyme preparation displayed negligible sinapaldehyde dehydrogenase activity, but showed ferulic acid 5-hydroxylation activity and 5-hydroxyferulic acid O-methyltransferase activity; these activities were retained in the presence of competitive substrates (coniferaldehyde and 5-hydroxyconiferaldehyde, respectively). 5-Hydroxyferulic acid and sinapic acid accumulated in the developing xylem of R. pseudoacacia, suggesting, in part at least, sinapic acid is a sinapyl alcohol precursor in this species.
[Mh] Termos MeSH primário: Vias Biossintéticas
Ácidos Cumáricos/metabolismo
Lignina/biossíntese
Metiltransferases/metabolismo
Fenilpropionatos/metabolismo
Robinia/enzimologia
[Mh] Termos MeSH secundário: Coenzima A Ligases/genética
Coenzima A Ligases/metabolismo
Hidroxilação
Metilação
Metiltransferases/genética
Proteínas de Plantas/genética
Proteínas de Plantas/metabolismo
Robinia/química
Xilema/química
Xilema/enzimologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Coumaric Acids); 0 (Phenylpropionates); 0 (Plant Proteins); 1782-55-4 (5-hydroxyferulic acid); 68A28V6010 (sinapinic acid); 8O6NO04SMV (sinapyl alcohol); 9005-53-2 (Lignin); AVM951ZWST (ferulic acid); EC 2.1.1.- (Methyltransferases); EC 2.1.1.68 (caffeate O-methyltransferase); EC 6.2.1.- (Coenzyme A Ligases); EC 6.2.1.12 (4-coumarate-CoA ligase)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161127
[St] Status:MEDLINE
[do] DOI:10.1007/s10265-016-0882-4


  8 / 198 MEDLINE  
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[PMID]:27839882
[Au] Autor:Huang S; Jia X; Zhao Y; Bai B; Chang Y
[Ad] Endereço:School of Environmental Science and Engineering, Chang'an University, Xi'an 710054, PR China.
[Ti] Título:Elevated CO benefits the soil microenvironment in the rhizosphere of Robinia pseudoacacia L. seedlings in Cd- and Pb-contaminated soils.
[So] Source:Chemosphere;168:606-616, 2017 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Soil contamination by heavy metals in combination with elevated atmospheric CO has important effects on the rhizosphere microenvironment by influencing plant growth. Here, we investigated the response of the R. pseudoacacia rhizosphere microenvironment to elevated CO in combination with cadmium (Cd)- and lead (Pb)-contamination. Organic compounds (total soluble sugars, soluble phenolic acids, free amino acids, and organic acids), microbial abundance and activity, and enzyme activity (urease, dehydrogenase, invertase, and ß-glucosidase) in rhizosphere soils increased significantly (p < 0.05) under elevated CO relative to ambient CO ; however, l-asparaginase activity decreased. Addionally, elevated CO alone affected soil microbial community in the rhizosphere. Heavy metals alone resulted in an increase in total soluble sugars, free amino acids, and organic acids, a decrease in phenolic acids, microbial populations and biomass, and enzyme activity, and a change in microbial community in rhizosphere soils. Elevated CO led to an increase in organic compounds, microbial populations, biomass, and activity, and enzyme activity (except for l-asparaginase), and changes in microbial community under Cd, Pb, or Cd + Pb treatments relative to ambient CO . In addition, elevated CO significantly (p < 0.05) enhanced the removal ratio of Cd and Pb in rhizosphere soils. Overall, elevated CO benefited the rhizosphere microenvironment of R. pseudoacacia seedlings under heavy metal stress, which suggests that increased atmospheric CO concentrations could have positive effects on soil fertility and rhizosphere microenvironment under heavy metals.
[Mh] Termos MeSH primário: Cádmio/análise
Dióxido de Carbono/química
Chumbo/análise
Rizosfera
Robinia/crescimento & desenvolvimento
Microbiologia do Solo
Poluentes do Solo/análise
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Biomassa
Plântulas/crescimento & desenvolvimento
Solo/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Soil); 0 (Soil Pollutants); 00BH33GNGH (Cadmium); 142M471B3J (Carbon Dioxide); 2P299V784P (Lead)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161115
[St] Status:MEDLINE


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[PMID]:27749263
[Au] Autor:Cudic V; Stojiljkovic D; Jovovic A
[Ti] Título:Phytoremediation potential of wild plants growing on soil contaminated with heavy metals.
[So] Source:Arh Hig Rada Toksikol;67(3):229-239, 2016 Sep 01.
[Is] ISSN:1848-6312
[Cp] País de publicação:Croatia
[La] Idioma:eng
[Ab] Resumo:Phytoremediation is an emerging technology that employs higher plants to cleanup contaminated environments, including metal-polluted soils. Because it produces a biomass rich in extracted toxic metals, further treatment of this biomass is necessary. The aim of our study was to assess the five-year potential of the following native wild plants to produce biomass and remove heavy metals from a polluted site: poplar (Populus ssp.), ailanthus (Ailanthus glandulosa L.), false acacia (Robinia pseudoacacia L.), ragweed (Artemisia artemisiifolia L.), and mullein (Verbascum thapsus L). Average soil contamination with Pb, Cd, Zn, Cu, Ni, Cr, and As in the root zone was 22,948.6 mg kg-1, 865.4 mg kg-1, 85,301.7 mg kg-1, 3,193.3 mg kg-1, 50.7 mg kg-1, 41.7 mg kg-1,and 617.9 mg kg-1, respectively. We measured moisture and ash content, concentrations of Pb, Cd, Zn, Cu, Ni, Cr, and As in the above-ground parts of the plants and in ash produced by combustion of the plants, plus gross calorific values. The plants' phytoextraction and phytostabilisation potential was evaluated based on their bioconcentration factor (BCF) and translocation factor (TF). Mullein was identified as a hyperaccumulator for Cd. It also showed a higher gross calorific value (19,735 kJ kg-1) than ragweed (16,469 kJ kg-1).The results of this study suggest that mullein has a great potential for phytoextraction and for biomass generation, and that ragweed could be an effective tool of phytostabilisation.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Intoxicação por Metais Pesados
Metais Pesados/metabolismo
Raízes de Plantas/metabolismo
Envenenamento/metabolismo
Poluentes do Solo/metabolismo
[Mh] Termos MeSH secundário: Ailanthus/metabolismo
Artemisia
Monitoramento Ambiental
Populus/metabolismo
Robinia/metabolismo
Sérvia
Verbascum/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals, Heavy); 0 (Soil Pollutants)
[Em] Mês de entrada:1704
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161018
[St] Status:MEDLINE


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[PMID]:27423497
[Au] Autor:Jia X; Zhao Y; Liu T; Huang S; Chang Y
[Ad] Endereço:School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Key Laboratory of Environmental Protection & Pollution and Remediation of Water and Soil of Shaanxi Province, Chang'an University, Xi'an 710054,
[Ti] Título:Elevated CO increases glomalin-related soil protein (GRSP) in the rhizosphere of Robinia pseudoacacia L. seedlings in Pb- and Cd-contaminated soils.
[So] Source:Environ Pollut;218:349-357, 2016 Nov.
[Is] ISSN:1873-6424
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Glomalin-related soil protein (GRSP), which contains glycoproteins produced by arbuscular mycorrhizal fungi (AMF), as well as non-mycorrhizal-related heat-stable proteins, lipids, and humic materials, is generally categorized into two fractions: easily extractable GRSP (EE-GRSP) and total GRSP (T-GRSP). GRSP plays an important role in soil carbon (C) sequestration and can stabilize heavy metals such as lead (Pb), cadmium (Cd), and manganese (Mn). Soil contamination by heavy metals is occurring in conjunction with rising atmospheric CO in natural ecosystems due to human activities. However, the response of GRSP to elevated CO combined with heavy metal contamination has not been widely reported. Here, we investigated the response of GRSP to elevated CO in the rhizosphere of Robinia pseudoacacia L. seedlings in Pb- and Cd-contaminated soils. Elevated CO (700 µmol mol ) significantly increased T- and EE- GRSP concentrations in soils contaminated with Cd, Pb or Cd + Pb. GRSP contributed more carbon to the rhizosphere soil organic carbon pool under elevated CO + heavy metals than under ambient CO . The amount of Cd and Pb bound to GRSP was significantly higher under elevated (compared to ambient) CO ; and elevated CO increased the ratio of GRSP-bound Cd and Pb to total Cd and Pb. However, available Cd and Pb in rhizosphere soil under increased elevated CO compared to ambient CO . The combination of both metals and elevated CO led to a significant increase in available Pb in rhizosphere soil compared to the Pb treatment alone. In conclusion, increased GRSP produced under elevated CO could contribute to sequestration of soil pollutants by adsorption of Cd and Pb.
[Mh] Termos MeSH primário: Cádmio/química
Dióxido de Carbono/farmacologia
Proteínas Fúngicas/metabolismo
Glicoproteínas/metabolismo
Chumbo/química
Poluentes do Solo/química
[Mh] Termos MeSH secundário: Atmosfera/química
Ecossistema
Poluição Ambiental
Proteínas Fúngicas/química
Glicoproteínas/química
Metais Pesados
Micorrizas/efeitos dos fármacos
Micorrizas/metabolismo
Rizosfera
Robinia/microbiologia
Plântulas/microbiologia
Solo/química
Microbiologia do Solo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Fungal Proteins); 0 (Glycoproteins); 0 (Metals, Heavy); 0 (Soil); 0 (Soil Pollutants); 0 (glomalin, Mycorrhizae); 00BH33GNGH (Cadmium); 142M471B3J (Carbon Dioxide); 2P299V784P (Lead)
[Em] Mês de entrada:1701
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160718
[St] Status:MEDLINE



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