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[PMID]: 27771564
[Au] Autor:Nadal M; Rovira J; Díaz-Ferrero J; Schuhmacher M; Domingo JL
[Ad] Address:Laboratory of Toxicology and Environmental Health, School of Medicine, IISPV, Universitat Rovira i Virgili, Sant Llorenç 21, 43201 Reus, Catalonia, Spain.
[Ti] Title:Human exposure to environmental pollutants after a tire landfill fire in Spain: Health risks.
[So] Source:Environ Int;97:37-44, 2016 12.
[Is] ISSN:1873-6750
[Cp] Country of publication:Netherlands
[La] Language:eng
[Ab] Abstract:In May 2016, a fire occurred in one of the largest landfills in Europe (Seseña, Toledo, Spain), where 70,000-90,000tons of tires had been illegally accumulated for >15years. Because of the proximity of population nuclei and the duration of the episode (>20days), we conducted a preliminary human health risk assessment study just after the tire fire. Samples of air and soil were collected in 3 areas surrounding the landfill (El Quiñón, at only 500m, and Seseña Nuevo and Seseña Viejo, both at 4km), as well as in background sites. In addition, samples of crops (barley, wheat, cabbage and lettuce) were also obtained from local farmers. The concentrations of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs) and a number of trace elements (As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Sb, Sn, Tl, and V) were analyzed in all the samples. The concentrations of all the target pollutants, excepting PAHs, were relatively similar at the different sampling zones, irrespective of the distance to the landfill. In turn, a significant increase of PAHs was noted near the tire landfill, with air levels up to 6-times higher than those found at 4km (134 vs. 19.5-22.7ng/m ). Similarly, PAH concentrations in lettuce were relatively higher than those typically found in monitoring programs of food safety. Because of the increase of airborne PAHs, cancer risks due to exposure to environmental pollutants for the population living at El Quiñón, near the landfill, were between 3- and 5-times higher than those estimated for the inhabitants of Seseña. After this preliminary study, further investigations, focused only on PAHs, but more extensive in terms of number of samples, should be conducted to assure that PAHs have been progressively degraded through time.
[Mh] MeSH terms primary: Air Pollutants/analysis
Environmental Pollutants/analysis
Fires
Hazardous Waste/analysis
Polychlorinated Dibenzodioxins/analysis
Soil Pollutants/analysis
Trace Elements/analysis
[Mh] MeSH terms secundary: Air Pollutants/toxicity
Environmental Pollutants/toxicity
Hazardous Waste/adverse effects
Humans
Motor Vehicles
Polychlorinated Biphenyls/analysis
Polychlorinated Biphenyls/toxicity
Polychlorinated Dibenzodioxins/toxicity
Polycyclic Aromatic Hydrocarbons/analysis
Polycyclic Aromatic Hydrocarbons/toxicity
Risk Assessment
Soil Pollutants/toxicity
Spain
Trace Elements/toxicity
Waste Disposal Facilities
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (Air Pollutants); 0 (Environmental Pollutants); 0 (Hazardous Waste); 0 (Polychlorinated Dibenzodioxins); 0 (Polycyclic Aromatic Hydrocarbons); 0 (Soil Pollutants); 0 (Trace Elements); DFC2HB4I0K (Polychlorinated Biphenyls)
[Em] Entry month:1711
[Cu] Class update date: 180311
[Lr] Last revision date:180311
[Js] Journal subset:IM
[Da] Date of entry for processing:161025
[St] Status:MEDLINE

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[PMID]: 29175398
[Au] Autor:Qiu N; Wang R; Sun Y; Wang X; Jiang D; Meng Y; Zhou F
[Ad] Address:School of Life Science, Qufu Normal University, Qufu, Shandong 273165, China.
[Ti] Title:Toxic effects and mechanism of 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) on Lemna minor.
[So] Source:Chemosphere;193:711-719, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:To investigate the toxic effect and mechanism of 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) in aquatic plants, in vivo and in vitro exposure to BDE-47 were conducted. After 14-d exposure to 5-20 µg/L BDE-47, the growth of Lemna minor plants was significantly suppressed, and the chlorophyll and soluble protein contents in fronds markedly decreased. Accordingly, the photosynthetic efficiency (Fv/Fm, PI) decreased. When the thylakoid membranes isolated from healthy fronds was exposed to 5-20 mg/L BDE-47 directly in vitro for 1 h, the photosynthetic efficiency also decreased significantly. In both the in vitro (5-20 µg/L) and in vivo (5-20 mg/L) experiments, BDE-47 led to an increased plasma membrane permeability. Hence, we concluded that BDE-47 had a direct toxicity to photosynthetic membranes and plasma membranes. However, direct effects on the activities of peroxidase (POD), malate dehydrogenase (MDH) and nitroreductase (NR) were not observed by adding 5-20 mg/L BDE-47 into crude enzyme extracts. The malondialdehyde (MDA) and superoxide anion radical (O ) contents in the BDE-47 treated fronds were higher than those in the control fronds, suggesting that L. minor can not effectively relieve reactive oxygen species (ROS). The data above indicates that BDE-47 is toxic to L. minor through acting directly on biomembranes, which induces the production of ROS and thus causes remarkable oxidative damage to cells.
[Mh] MeSH terms primary: Araceae/drug effects
Halogenated Diphenyl Ethers/toxicity
Water Pollutants, Chemical/toxicity
[Mh] MeSH terms secundary: Araceae/enzymology
Araceae/metabolism
Chlorophyll/metabolism
Ether
Malondialdehyde/metabolism
Oxidation-Reduction
Peroxidase/metabolism
Reactive Oxygen Species/metabolism
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (Halogenated Diphenyl Ethers); 0 (Reactive Oxygen Species); 0 (Water Pollutants, Chemical); 0F5N573A2Y (Ether); 0N97R5X10X (2,2',4,4'-tetrabromodiphenyl ether); 1406-65-1 (Chlorophyll); 4Y8F71G49Q (Malondialdehyde); EC 1.11.1.7 (Peroxidase)
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[Js] Journal subset:IM
[Da] Date of entry for processing:171128
[St] Status:MEDLINE

  3 / 6228 MEDLINE  
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[PMID]: 28858706
[Au] Autor:Modlitbová P; Novotný K; Porízka P; Klus J; Lubal P; Zlámalová-Gargosová H; Kaiser J
[Ad] Address:Central European Institute of Technology (CEITEC) Brno University of Technology, Technická 3058/10, 616 00 Brno, Czech Republic. Electronic address: Pavlina.Skarkova@ceitec.vutbr.cz.
[Ti] Title:Comparative investigation of toxicity and bioaccumulation of Cd-based quantum dots and Cd salt in freshwater plant Lemna minor L.
[So] Source:Ecotoxicol Environ Saf;147:334-341, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] Country of publication:Netherlands
[La] Language:eng
[Ab] Abstract:The purpose of this study was to determine the toxicity of two different sources of cadmium, i.e. CdCl and Cd-based Quantum Dots (QDs), for freshwater model plant Lemna minor L. Cadmium telluride QDs were capped with two coating ligands: glutathione (GSH) or 3-mercaptopropionic acid (MPA). Growth rate inhibition and final biomass inhibition of L. minor after 168-h exposure were monitored as toxicity endpoints. Dose-response curves for Cd toxicity and EC50 values were statistically evaluated for all sources of Cd to uncover possible differences among the toxicities of tested compounds. Total Cd content and its bioaccumulation factors (BAFs) in L. minor after the exposure period were also determined to distinguish Cd bioaccumulation patterns with respect to different test compounds. Laser-Induced Breakdown Spectroscopy (LIBS) with lateral resolution of 200µm was employed in order to obtain two-dimensional maps of Cd spatial distribution in L. minor fronds. Our results show that GSH- and MPA-capped Cd-based QDs have similar toxicity for L. minor, but are significantly less toxic than CdCl . However, both sources of Cd lead to similar patterns of Cd bioaccumulation and distribution in L. minor fronds. Our results are in line with previous reports that the main mediators of Cd toxicity and bioaccumulation in aquatic plants are Cd ions dissolved from Cd-based QDs.
[Mh] MeSH terms primary: Araceae/drug effects
Cadmium Chloride/toxicity
Cadmium Compounds/toxicity
Environmental Monitoring/methods
Quantum Dots/toxicity
Tellurium/toxicity
Water Pollutants, Chemical/toxicity
[Mh] MeSH terms secundary: 3-Mercaptopropionic Acid/chemistry
Adsorption
Araceae/growth & development
Araceae/metabolism
Biomass
Cadmium Chloride/metabolism
Cadmium Compounds/metabolism
Fresh Water/chemistry
Glutathione/chemistry
Models, Theoretical
Quantum Dots/metabolism
Tellurium/metabolism
Water Pollutants, Chemical/chemistry
[Pt] Publication type:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Name of substance:0 (Cadmium Compounds); 0 (Water Pollutants, Chemical); B03TJ3QU9M (3-Mercaptopropionic Acid); GAN16C9B8O (Glutathione); J6K4F9V3BA (Cadmium Chloride); NQA0O090ZJ (Tellurium); STG188WO13 (cadmium telluride)
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[Js] Journal subset:IM
[Da] Date of entry for processing:170901
[St] Status:MEDLINE

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[PMID]: 29520545
[Au] Autor:Milani PA; Debs KB; Labuto G; Carrilho ENVM
[Ad] Address:Laboratório de Materiais Poliméricos e Biossorventes, Universidade Federal de São Carlos, Araras, SP, 13600-970, Brazil.
[Ti] Title:Agricultural solid waste for sorption of metal ions: part I-characterization and use of lettuce roots and sugarcane bagasse for Cu(II), Fe(II), Zn(II), and Mn(II) sorption from aqueous medium.
[So] Source:Environ Sci Pollut Res Int;, 2018 Mar 08.
[Is] ISSN:1614-7499
[Cp] Country of publication:Germany
[La] Language:eng
[Ab] Abstract:Sugarcane bagasse and hydroponic lettuce roots were used as biosorbents for Cu(II), Fe(II), Zn(II), and Mn(II) removal from monoelemental solutions in aqueous medium, at pH 5.5, using batch procedures. These biomasses were studied in natura (lettuce roots, NLR, and sugarcane bagasse, NSB) and modified with HNO (lettuce roots, MLR, and sugarcane bagasse, MSB). Langmuir, Freundlich, and Dubinin-Radushkevich non-linear isotherm models were used to evaluate the data from the metal ion adsorption assessment. The maximum adsorption capacities (q ) in monoelemental solution, calculated using the Langmuir isothermal model for Cu(II), Fe(II), Zn(II), and Mn(II), were respectively 24.61, 2.64, 23.04, and 5.92 mg/g for NLR; 2.29, 16.89, 1.97, and 2.88 mg/g for MLR; 0.81, 0.06, 0.83, and 0.46 mg/g for NSB; and 1.35, 2.89, 20.76, and 1.56 mg/g for MSB. The Freundlich n parameter indicated that the adsorption process was favorable for Cu(II) uptake by NLR; Fe(II) retention by MLR and MSB; and Zn(II) sorption by NSB, MLR, and NSB and favorable for all biomasses in the accumulation of Mn(II). The Dubinin-Radushkevich isotherm was applied to estimate the energy (E) and type of adsorption process involved, which was found to be a physical one between analytes and adsorbents. Organic groups such as O-H, C-O-C, CH, and C=O were found in the characterization of the biomass by FTIR. In the determination of the biomass surface charges by using blue methylene and red amaranth dyes, there was a predominance of negative charges.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:Publisher
[do] DOI:10.1007/s11356-018-1615-0

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[PMID]: 29518958
[Au] Autor:Hu Y; Wang L; Xiang L; Wu Q; Jiang H
[Ad] Address:College of Biosystems Engineering and Food Science, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China. yhu@zju.edu.cn.
[Ti] Title:Automatic Non-Destructive Growth Measurement of Leafy Vegetables Based on Kinect.
[So] Source:Sensors (Basel);18(3), 2018 Mar 07.
[Is] ISSN:1424-8220
[Cp] Country of publication:Switzerland
[La] Language:eng
[Ab] Abstract:Non-destructive plant growth measurement is essential for plant growth and health research. As a 3D sensor, Kinect v2 has huge potentials in agriculture applications, benefited from its low price and strong robustness. The paper proposes a Kinect-based automatic system for non-destructive growth measurement of leafy vegetables. The system used a turntable to acquire multi-view point clouds of the measured plant. Then a series of suitable algorithms were applied to obtain a fine 3D reconstruction for the plant, while measuring the key growth parameters including relative/absolute height, total/projected leaf area and volume. In experiment, 63 pots of lettuce in different growth stages were measured. The result shows that the Kinect-measured height and projected area have fine linear relationship with reference measurements. While the measured total area and volume both follow power law distributions with reference data. All these data have shown good fitting goodness ( ² = 0.9457-0.9914). In the study of biomass correlations, the Kinect-measured volume was found to have a good power law relationship ( ² = 0.9281) with fresh weight. In addition, the system practicality was validated by performance and robustness analysis.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:In-Process

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[PMID]: 29518239
[Au] Autor:Rafael K; Marchioro AA; Colli CM; Tiyo BT; Evangelista FF; Bezagio RC; Falavigna-Guilherme AL
[Ad] Address:Postgraduate Program in Health Sciences, State University of Maringa (UEM). Av. Colombo, 5790, CEP: 87020-900 Maringá.
[Ti] Title:Genotyping of Giardia duodenalis in vegetables cultivated with organic and chemical fertilizer from street markets and community vegetable gardens in a region of Southern Brazil.
[So] Source:Trans R Soc Trop Med Hyg;, 2018 Mar 06.
[Is] ISSN:1878-3503
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Background: In order to investigate the occurrence of Giardia duodenalis and its genotypes in vegetables that are consumed raw, we analyzed samples cultivated with organic or chemical fertilizer, sold in street markets and from community vegetable gardens in an urban area located in Southern Brazil. Methods: We analyzed 130 samples of vegetables such as crisp lettuce, regular lettuce, kale, chicory and rocket, from street markets, and 130 from community gardens. From each sample, 50 g were washed in Tween 80 solution (1%) and the solution obtained was filtered through a cellulose acetate membrane. The retained material was used for DNA extraction with the commercial kit Purelink®. GDH gene was amplified by semi-nested PCR using the GDHeF, GDHiR and GDHiF primers. Positive samples were genotyped using the PCR-RFLP technique with the restriction enzyme NlaIV. Results: We obtained 7.3% (19/260) positive samples for G. duodenalis, both from street markets (10/130) and from community gardens (9/130), including organic and non-organic products. The assemblage AI was predominant, but assemblages B and E were also found. Conclusions: The molecular technique revealed genotypes with zoonotic potential, evidencing the importance of investigating commercialized vegetables that are consumed raw and establishing a more rigid quality control.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180308
[Lr] Last revision date:180308
[St] Status:Publisher
[do] DOI:10.1093/trstmh/try013

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[PMID]: 29444347
[Au] Autor:Kim Y; Kim H; Beuchat LR; Ryu JH
[Ad] Address:Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Korea.
[Ti] Title:Inhibition of Escherichia coli O157:H7 on stainless steel using Pseudomonas veronii biofilms.
[So] Source:Lett Appl Microbiol;, 2018 Feb 14.
[Is] ISSN:1472-765X
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:We produced a Pseudomonas veronii biofilm on the surface of a stainless steel that is inhibitory to Escherichia coli O157:H7. Pseudomonas veronii strain KACC 81051BP, isolated from lettuce, readily formed biofilm on the surface of stainless steel coupons (SSCs) immersed in tryptic soy broth at 25°C. Cells showed significantly (P ≤ 0·05) enhanced tolerance to desiccation stress (43% relative humidity (RH)) and retained antimicrobial activity against E. coli O157:H7. The number of E. coli O157:H7 (control; 4·1 ± 0·1 log CFU per coupon) on sterile SSCs decreased to 2·7 ± 0·2 log CFU per coupon after exposure to 43% RH at 25°C for 48 h, while the population of E. coli O157:H7 (4·1 ± 0·0 log CFU per coupon) on SSCs containing P. veronii biofilm decreased to below the theoretical detection limit (1·5 log CFU per coupon) within 24 h. The antimicrobial biofilm produced on stainless steel may have application in preventing cross-contamination by E. coli O157:H7 on other abiotic surfaces in food-contact environments. SIGNIFICANCE AND IMPACT OF THE STUDY: The presence of Escherichia coli O157:H7 on environmental surfaces of food manufacturing, transportation and storage facilities is a significant food safety concern because it can result in cross-contamination of food products. In this study, we developed a Pseudomonas veronii biofilm on the surface of a stainless steel that inhibits the growth of E. coli O157:H7. Since P. veronii in biofilm resists desiccation, it provides persistent antimicrobial activity. Information presented here provides novel and practical insights to developing biological strategies to inactivate E. coli O157:H7 on diverse surfaces in food processing and handling environments.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1802
[Cu] Class update date: 180309
[Lr] Last revision date:180309
[St] Status:Publisher
[do] DOI:10.1111/lam.12866

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[PMID]: 29267499
[Au] Autor:Santos APP; Silva MDS; Costa EVL; Rufino RD; Santos VA; Ramos CS; Sarubbo LA; Porto ALF
[Ad] Address:Departamento de Morfologia e Fisiologia Animal, Universidade Federal Rural de Pernambuco, Recife, PE, Brasil.
[Ti] Title:Production and characterization of a biosurfactant produced by Streptomyces sp. DPUA 1559 isolated from lichens of the Amazon region.
[So] Source:Braz J Med Biol Res;51(2):e6657, 2017 Dec 11.
[Is] ISSN:1414-431X
[Cp] Country of publication:Brazil
[La] Language:eng
[Ab] Abstract:Surfactants are amphipathic compounds containing both hydrophilic and hydrophobic groups, capable to lower the surface or interfacial tension. Considering the advantages of the use of biosurfactants produced by microorganisms, the aim of this paper was to develop and characterize a biosurfactant produced by Streptomyces sp. DPUA1559 isolated from lichens of the Amazon region. The microorganism was cultured in a mineral medium containing 1% residual frying soybean oil as the carbon source. The kinetics of biosurfactant production was accompanied by reducing the surface tension of the culture medium from 60 to values around 27.14 mN/m, and by the emulsification index, which showed the efficiency of the biosurfactant as an emulsifier of hydrophobic compounds. The yield of the isolated biosurfactant was 1.74 g/L, in addition to the excellent capability of reducing the surface tension (25.34 mN/m), as observed from the central composite rotational design when the biosurfactant was produced at pH 8.5 at 28°C. The critical micelle concentration of the biosurfactant was determined as 0.01 g/mL. The biosurfactant showed thermal and pH stability regarding the surface tension reduction, and tolerance under high salt concentrations. The isolated biosurfactant showed no toxicity to the micro-crustacean Artemia salina, and to the seeds of lettuce (Lactuca sativa L.) and cabbage (Brassica oleracea L.). The biochemistry characterization of the biosurfactant showed a single protein band, an acid character and a molecular weight around 14.3 kDa, suggesting its glycoproteic nature. The results are promising for the industrial application of this new biosurfactant.
[Mh] MeSH terms primary: Lichens/microbiology
Streptomyces/metabolism
Surface-Active Agents/metabolism
[Mh] MeSH terms secundary: Analysis of Variance
Colony Count, Microbial
Culture Media
Electrophoresis, Polyacrylamide Gel
Fermentation
Hydrogen-Ion Concentration
Reference Values
Seeds/drug effects
Soybean Oil/chemistry
Spectroscopy, Fourier Transform Infrared
Streptomyces/growth & development
Streptomyces/isolation & purification
Surface Tension
Surface-Active Agents/analysis
Surface-Active Agents/chemistry
Temperature
Time Factors
[Pt] Publication type:JOURNAL ARTICLE
[Nm] Name of substance:0 (Culture Media); 0 (Surface-Active Agents); 8001-22-7 (Soybean Oil)
[Em] Entry month:1803
[Cu] Class update date: 180308
[Lr] Last revision date:180308
[Js] Journal subset:IM
[Da] Date of entry for processing:171222
[St] Status:MEDLINE

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[PMID]: 28987404
[Au] Autor:Xu H; Yu C; Xia X; Li M; Li H; Wang Y; Wang S; Wang C; Ma Y; Zhou G
[Ad] Address:Key Laboratory of Biofuels, Shandong Provincial Key Laboratory of Energy Genetics, Qingdao Engineering Research Center of Biomass Resources and Environment, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
[Ti] Title:Comparative transcriptome analysis of duckweed (Landoltia punctata) in response to cadmium provides insights into molecular mechanisms underlying hyperaccumulation.
[So] Source:Chemosphere;190:154-165, 2018 Jan.
[Is] ISSN:1879-1298
[Cp] Country of publication:England
[La] Language:eng
[Ab] Abstract:Cadmium (Cd) is a detrimental environmental pollutant. Duckweeds have been considered promising candidates for Cd phytoremediation. Although many physiological studies have been conducted, the molecular mechanisms underlying Cd hyperaccumulation in duckweeds are largely unknown. In this study, clone 6001 of Landoltia punctata, which showed high Cd tolerance, was obtained by large-scale screening of over 200 duckweed clones. Subsequently, its growth, Cd flux, Cd accumulation, and Cd distribution characteristics were investigated. To further explore the global molecular mechanism, a comprehensive transcriptome analysis was performed. For RNA-Seq, samples were treated with 20 µM CdCl for 0, 1, 3, and 6 days. In total, 9,461, 9,847, and 9615 differentially expressed unigenes (DEGs) were discovered between Cd-treated and control (0 day) samples. DEG clustering and enrichment analysis identified several biological processes for coping with Cd stress. Genes involved in DNA repair acted as an early response to Cd, while RNA and protein metabolism would be likely to respond as well. Furthermore, the carbohydrate metabolic flux tended to be modulated in response to Cd stress, and upregulated genes involved in sulfur and ROS metabolism might cause high Cd tolerance. Vacuolar sequestration most likely played an important role in Cd detoxification in L. punctata 6001. These novel findings provided important clues for molecular assisted screening and breeding of Cd hyperaccumulating cultivars for phytoremediation.
[Mh] MeSH terms primary: Araceae/drug effects
Araceae/genetics
Biodegradation, Environmental
Cadmium/pharmacokinetics
Gene Expression Profiling
[Mh] MeSH terms secundary: Araceae/metabolism
Cadmium/metabolism
Drug Tolerance/genetics
Gene Expression Profiling/methods
Genes, Plant/drug effects
Genes, Plant/genetics
Sequence Analysis, RNA
Stress, Physiological/genetics
Transcriptome/drug effects
[Pt] Publication type:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Name of substance:00BH33GNGH (Cadmium)
[Em] Entry month:1803
[Cu] Class update date: 180308
[Lr] Last revision date:180308
[Js] Journal subset:IM
[Da] Date of entry for processing:171009
[St] Status:MEDLINE

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[PMID]: 29513106
[Au] Autor:Machado ER; Maldonade IR; Riquette RFR; Mendes VS; Gurgel-Gonçalves R; Ginani VC
[Ad] Address:1 Laboratory of Medical Parasitology and Vector Biology, Faculty of Medicine, University of Brasília, Brasília-DF, 70910-900, Brazil.
[Ti] Title:Frequency of Enteroparasites and Bacteria in the Leafy Vegetables Sold in Brazilian Public Wholesale Markets.
[So] Source:J Food Prot;81(4):542-548, 2018 Apr.
[Is] ISSN:1944-9097
[Cp] Country of publication:United States
[La] Language:eng
[Ab] Abstract:The consumption of raw vegetables is related to health benefits. However, these foods might be source of foodborne diseases. The objective of the present study was to perform a microbiological and parasitological evaluation of the leafy vegetables commercially sold in five regions of Brazil at public wholesale markets. The 12 types of leafy vegetables (144 samples) were curly lettuce, looseleaf lettuce, red lettuce, chives, coriander, kale, basil, arugula, parsley, iceberg lettuce, chicory, and bean sprouts. The prevalences of total coliforms (88 to 100%) and thermotolerant coliforms (37 to 100%) were high, but Salmonella was not detected in any of the analyzed samples. All open markets sold vegetables contaminated with enteroparasites, mainly Entamoeba sp., Balantidium coli, Strongyloides sp., Ascaris sp., Enterobius vermicularis, and Ancylostomidae. Contamination was detected in all the regions (north, northeast, central west, southeast, and south) and types of vegetables, with higher prevalences in the northeast region, mainly in basil, lettuce, and chives. Contamination of vegetables by potentially pathogenic microorganisms is a national problem, and the distribution centers should improve quality control of these commercial vegetables. Considering the high frequency of enteroparasites and bacteria and the potential risk of disease transmitted by vegetables, we suggest greater enforcement of the sanitary surveillance of food offered to the public.
[Pt] Publication type:JOURNAL ARTICLE
[Em] Entry month:1803
[Cu] Class update date: 180307
[Lr] Last revision date:180307
[St] Status:In-Data-Review
[do] DOI:10.4315/0362-028X.JFP-17-358


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