Base de dados : MEDLINE
Pesquisa : N06.230.080.600.500 [Categoria DeCS]
Referências encontradas : 36121 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 3613 ir para página                         

  1 / 36121 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29309432
[Au] Autor:Unkovic N; Dimkic I; Stupar M; Stankovic S; Vukojevic J; Ljaljevic Grbic M
[Ad] Endereço:Department for Algology, Mycology and Lichenology, Institute of Botany and Botanical Garden "Jevremovac", Faculty of Biology, University of Belgrade, Belgrade, Serbia.
[Ti] Título:Biodegradative potential of fungal isolates from sacral ambient: In vitro study as risk assessment implication for the conservation of wall paintings.
[So] Source:PLoS One;13(1):e0190922, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The principal purpose of the study was to evaluate in vitro the potential ability of fungal isolates obtained from the painted layer of frescoes and surrounding air to induce symptoms of fresco deterioration, associated with their growth and metabolism, so that the risk of such deterioration can be precisely assessed and appropriate conservation treatments formulated. Biodegradative properties of the tested microfungi were qualitatively characterized through the use of a set of special agar plates: CaCO3 glucose agar (calcite dissolution), casein nutrient agar (casein hydrolysis), Czapek-Dox minimal medium (pigment secretion); and Czapek-Dox minimal broth (acid and alkali production). Most of the tested isolates (71.05%) demonstrated at least one of the degradative properties, with Penicillium bilaiae as the most potent, since it tested positive in all four. The remaining isolates (28.95%) showed no deterioration capabilities and were hence considered unlikely to partake in the complex process of fungal deterioration of murals via the tested mechanisms. The obtained results clearly indicate that utilization of fast and simple plate assays can provide insight into the biodegradative potential of deteriogenic fungi and allow for their separation from allochthonous transients, a prerequisite for precise assessment of the amount of risk posed by a thriving mycobiota to mural paintings.
[Mh] Termos MeSH primário: Arte
Fungos/metabolismo
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Carbonato de Cálcio
Técnicas In Vitro
Medição de Risco
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
H0G9379FGK (Calcium Carbonate)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180109
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190922


  2 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29175407
[Au] Autor:Patra DK; Pradhan C; Patra HK
[Ad] Endereço:Post-Graduate Department of Botany, Utkal University, Bhubaneswar 751004, India.
[Ti] Título:An in situ study of growth of Lemongrass Cymbopogon flexuosus (Nees ex Steud.) W. Watson on varying concentration of Chromium (Cr ) on soil and its bioaccumulation: Perspectives on phytoremediation potential and phytostabilisation of chromium toxicity.
[So] Source:Chemosphere;193:793-799, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Chromium (Cr) contamination in soil is a growing concern in sustainable agricultural production and food safety. Remediation of Cr from contaminated soils is a challenging task which may not only help in sustaining agriculture but also in minimizing adverse environmental impacts. Pot culture experiments were performed with the application of varied concentration of Cr to assess the Chromium accumulation potential of Lemongrass and to study the impact of toxic concentration of Cr on morphological, physiological and biochemical parameters of the plant. The results showed an increasing accumulation trend of Chromium with increasing Chromium concentrations in both root and shoot of 60 days old Lemongrass plants, while the protein and chlorophyll contents decreased. Similarly, accumulation of Cr increased the levels of proline and antioxidant enzymes indicating the enhanced damage control activity. The potentiality of the plant with the capacity to accumulate and stabilize Cr compound in Cr contaminated soil by phytoremediation process has been explored in the present investigation.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Cromo/farmacocinética
Cromo/toxicidade
Cymbopogon/metabolismo
Solo/química
[Mh] Termos MeSH secundário: Antioxidantes/metabolismo
Clorofila/metabolismo
Cromo/análise
Cymbopogon/crescimento & desenvolvimento
Proteínas de Plantas/metabolismo
Raízes de Plantas/metabolismo
Poluentes do Solo/análise
Poluentes do Solo/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Plant Proteins); 0 (Soil); 0 (Soil Pollutants); 0R0008Q3JB (Chromium); 1406-65-1 (Chlorophyll)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE


  3 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29175406
[Au] Autor:Sohn SY; Kuntze K; Nijenhuis I; Häggblom MM
[Ad] Endereço:Department of Biochemistry and Microbiology, School of Environmental and Biological Sciences, Rutgers University, 76 Lipman Drive, New Brunswick, NJ 08901, USA.
[Ti] Título:Evaluation of carbon isotope fractionation during anaerobic reductive dehalogenation of chlorinated and brominated benzenes.
[So] Source:Chemosphere;193:785-792, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Compound specific stable isotope analysis (CSIA) has been established as a useful tool to evaluate in situ biodegradation. Here, CSIA was used to determine microbial dehalogenation of chloro- and bromobenzenes in microcosms derived from Hackensack River sediments. Gas chromatography-isotope ratio mass spectrometry (GC-IRMS) was used to measure carbon isotope fractionation during reductive dehalogenation of hexachlorobenzene (HCB), pentachlorobenzene (PeCB), 1,2,3,5-tetrachlorobenzene (TeCB), 1,2,3,5-tetrabromobenzene (TeBB), and 1,3,5-tribromobenzene (TriBB). Strong evidence of isotope fractionation coupled to dehalogenation was not observed in the substrate, possibly due to the low solubilities of the highly halogenated benzene substrates and a dilution of the isotope signal. Nonetheless, we could measure a depletion of the δ C value in the dichlorobenzene product during dechlorination of HCB, the sequential depletion and enrichment of δ C value for trichlorobenzene in TeCB dechlorinating cultures, and the enrichment of δ C during debromination of TriBB. This indicates that a measurable isotope fractionation occurred during reductive dehalogenation of highly halogenated chloro- and bromobenzenes in aquatic sediments. Thus, although more quantitative measurements will be needed, the data suggests that CSIA may have application for monitoring in situ microbial reductive dehalogenation of highly halogenated benzenes.
[Mh] Termos MeSH primário: Benzeno
Biodegradação Ambiental
Bromobenzenos/metabolismo
Fracionamento Químico
Clorobenzenos/metabolismo
[Mh] Termos MeSH secundário: Bromobenzenos/análise
Isótopos de Carbono/química
Clorobenzenos/análise
Monitoramento Ambiental/métodos
Cromatografia Gasosa-Espectrometria de Massas
Halogenação
Rios/química
Rios/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Bromobenzenes); 0 (Carbon Isotopes); 0 (Chlorobenzenes); J64922108F (Benzene)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE


  4 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28863363
[Au] Autor:Turker G; Akyol Ç; Ince O; Aydin S; Ince B
[Ad] Endereço:Institute of Environmental Sciences, Bogaziçi University, Bebek, 34342 Istanbul, Turkey.
[Ti] Título:Operating conditions influence microbial community structures, elimination of the antibiotic resistance genes and metabolites during anaerobic digestion of cow manure in the presence of oxytetracycline.
[So] Source:Ecotoxicol Environ Saf;147:349-356, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The way that antibiotic residues in manure follow is one of the greatest concerns due to its potential negative impacts on microbial communities, the release of metabolites and antibiotic resistant genes (ARGs) into the nature and the loss of energy recovery in anaerobic digestion (AD) systems. This study evaluated the link between different operating conditions, the biodegradation of oxytetracycline (OTC) and the formation of its metabolites and ARGs in anaerobic digesters treating cow manure. Microbial communities and ARGs were determined through the use of quantitative real-time PCR. The biodegradation of OTC and occurrence of metabolites were determined using UV-HPLC and LC/MS/MS respectively. The maximum quantity of resistance genes was also examined at the beginning of AD tests and concentration was in the order of: tetM >tetO. The numbers of ARGs were always higher at high volatile solids (VS) content and high mixing rate. The results of the investigation revealed that relationship between mixing rate and VS content plays a crucial role for elimination of ARGs, OTC and metabolites. This can be attributed to high abundance of microorganisms due to high VS content and their increased contact with elevated mixing rate. An increased interaction between microorganisms triggers the promotion of ARGs.
[Mh] Termos MeSH primário: Antibacterianos/toxicidade
Reatores Biológicos/microbiologia
Resistência Microbiana a Medicamentos/genética
Esterco/microbiologia
Consórcios Microbianos/efeitos dos fármacos
Oxitetraciclina/toxicidade
[Mh] Termos MeSH secundário: Anaerobiose
Animais
Antibacterianos/metabolismo
Biodegradação Ambiental
Bovinos
Cromatografia Líquida de Alta Pressão
Feminino
Esterco/análise
Consórcios Microbianos/genética
Oxitetraciclina/metabolismo
Reação em Cadeia da Polimerase em Tempo Real
Espectrometria de Massas em Tandem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Manure); X20I9EN955 (Oxytetracycline)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170902
[St] Status:MEDLINE


  5 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28841530
[Au] Autor:Yang X; Wei H; Zhu C; Geng B
[Ad] Endereço:Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, People's Republic of China.
[Ti] Título:Biodegradation of atrazine by the novel Citricoccus sp. strain TT3.
[So] Source:Ecotoxicol Environ Saf;147:144-150, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:A previously undescribed atrazine-degrading bacterial strain TT3 capable of growing with atrazine as its sole nitrogen source was isolated from soil at the wastewater outfall of a pesticide factory in China. Phenotypic characterization and 16S rRNA gene sequencing indicated that the isolate belonged to the genus Citricoccus. Polymerase chain reaction (PCR) analysis revealed that TT3 contained the atrazine-degrading genes trzN, atzB, and atzC. The range for growth and atrazine degradation of TT3 was found to be pH 6.0-11.0, with a preference for alkaline conditions. At 30°C and pH 7.0, the strain removed 50mg/L atrazine in 66h with 1% inoculum. These results demonstrate that Citricoccus sp. TT3 has great potential for bioremediation of atrazine-contaminated sites, particularly in alkaline environments. To the best of our knowledge, there are no previous reports of Citricoccus strains that degrade atrazine, and therefore this work provides a novel candidate for atrazine bioremediation.
[Mh] Termos MeSH primário: Atrazina/análise
Herbicidas/análise
Micrococcaceae/crescimento & desenvolvimento
Microbiologia do Solo
Poluentes do Solo/análise
[Mh] Termos MeSH secundário: Atrazina/metabolismo
Biodegradação Ambiental
China
Herbicidas/metabolismo
Micrococcaceae/isolamento & purificação
RNA Ribossômico 16S/genética
Solo/química
Poluentes do Solo/metabolismo
Eliminação de Resíduos Líquidos
Águas Residuais/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Herbicides); 0 (RNA, Ribosomal, 16S); 0 (Soil); 0 (Soil Pollutants); 0 (Waste Water); QJA9M5H4IM (Atrazine)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170826
[St] Status:MEDLINE


  6 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28841524
[Au] Autor:Bharagava RN; Mishra S
[Ad] Endereço:Laboratory for Bioremediation and Metagenomics Research (LBMR), Department of Environmental Microbiology, Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow 226025, U.P., India. Electronic address: bharagavarnbbau11@gmail.com.
[Ti] Título:Hexavalent chromium reduction potential of Cellulosimicrobium sp. isolated from common effluent treatment plant of tannery industries.
[So] Source:Ecotoxicol Environ Saf;147:102-109, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Present study deals with the isolation and characterization of a bacterium capable for the effective reduction of Cr(VI) from tannery wastewater. Based on the 16S rRNA gene sequence analysis, this bacterium was identified as Cellulosimicrobium sp. (KX710177). During the Cr(VI) reduction experiment performed at 50, 100, 200,and 300mg/L of Cr(VI) concentrations, the bacterium showed 99.33% and 96.98% reduction at 50 and 100mg/L at 24 and 96h, respectively. However, at 200 and 300mg/L concentration of Cr(VI), only 84.62% and 62.28% reduction was achieved after 96h, respectively. The SEM analysis revealed that bacterial cells exposed to Cr(VI) showed increased cell size in comparison to unexposed cells, which might be due to either the precipitation or adsorption of reduced Cr(III) on bacterial cells. Further, the Energy Dispersive X-ray (EDX) analysis showed some chromium peaks for cells exposed to Cr(VI), which might be either due to the presence of precipitated reduced Cr(III) on cells or complexation of Cr(III) with cell surface molecules. The bacterium also showed resistance and sensitivity against the tested antibiotics with a wide range of MIC values ranging from 250 to 800mg/L for different heavy metals. Thus, this multi-drug and multi-metal resistant bacterium can be used as a potential agent for the effective bioremediation of metal contaminated sites.
[Mh] Termos MeSH primário: Cromo/análise
Micrococcaceae/isolamento & purificação
Curtume
Águas Residuais/microbiologia
Poluentes Químicos da Água/análise
Purificação da Água/métodos
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Cromo/química
Cromo/toxicidade
Relação Dose-Resposta a Droga
Testes de Sensibilidade Microbiana
Micrococcaceae/efeitos dos fármacos
Micrococcaceae/genética
Oxirredução
RNA Ribossômico 16S/genética
Águas Residuais/análise
Poluentes Químicos da Água/química
Poluentes Químicos da Água/toxicidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (RNA, Ribosomal, 16S); 0 (Waste Water); 0 (Water Pollutants, Chemical); 0R0008Q3JB (Chromium); 18540-29-9 (chromium hexavalent ion)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170826
[St] Status:MEDLINE


  7 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28837874
[Au] Autor:Halecki W; Klatka S
[Ad] Endereço:Department of Land Reclamation and Environmental Development, University of Agriculture, Al. Mickiewicza 24/28, 30-059 Kraków, Poland. Electronic address: wiktor.halecki@urk.edu.pl.
[Ti] Título:Long term growth of crop plants on experimental plots created among slag heaps.
[So] Source:Ecotoxicol Environ Saf;147:86-92, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Suppression of plant growth is a common problem in post-mining reclaimed areas, as coarse texture of soils may increase nitrate leaching. Assessing feasibility of using solid waste (precipitated solid matter) produced by water and sewage treatment processes in field conditions is very important in mine soil reclamation. Our work investigated the possibility of plant growth in a degraded site covered with sewage-derived sludge material. A test area (21m × 18m) was established on a mine soil heap. Experimental plant species included Camelina sativa, Helianthus annuus, Festuca rubra, Miscanthus giganteus, Amaranthus cruentus, Brassica napus, Melilotus albus, Beta vulgaris, and Zea mays. ANOVA showed sufficient water content and acceptable physical properties of the soil in each year and layer in a multi-year period, indicating that these species were suitable for phytoremediation purposes. Results of trace elements assays indicated low degree of contamination caused by Carbocrash waste material and low potential ecological risk for all plant species. Detrended correspondence analysis revealed that total porosity and capillary porosity were the most important variables for the biosolids among all water content related properties. Overall, crop plants were found useful on heavily degraded land and the soil benefited from their presence. An addition of Carbocrash substrate to mine soil improved the initial stage of soil reclamation and accelerated plant growth. The use of this substrate in phytoremediation helped to balance the content of nutrients, promoted plant growth, and increased plant tolerance to salinity. Sewage sludge-amended biosolids may be applied directly to agricultural soil, not only in experimental conditions.
[Mh] Termos MeSH primário: Produtos Agrícolas/crescimento & desenvolvimento
Mineração
Esgotos/química
Poluentes do Solo/análise
Solo/química
Resíduos Sólidos/análise
[Mh] Termos MeSH secundário: Biodegradação Ambiental
Biomassa
Polônia
Porosidade
Propriedades de Superfície
Fatores de Tempo
Oligoelementos/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sewage); 0 (Soil); 0 (Soil Pollutants); 0 (Solid Waste); 0 (Trace Elements)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180309
[Lr] Data última revisão:
180309
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170825
[St] Status:MEDLINE


  8 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28987406
[Au] Autor:Szewczyk R; Kusmierska A; Bernat P
[Ad] Endereço:Department of Industrial Microbiology and Biotechnology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Lódz, Banacha 12/16, 90-237 Lódz, Poland. Electronic address: rafal.szewczyk@biol.uni.lodz.pl.
[Ti] Título:Ametryn removal by Metarhizium brunneum: Biodegradation pathway proposal and metabolic background revealed.
[So] Source:Chemosphere;190:174-183, 2018 Jan.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Ametryn is a representative of a class of s-triazine herbicides absorbed by plant roots and leaves and characterized as a photosynthesis inhibitor. It is still in use in some countries in the farming of pineapples, soybean, corn, cotton, sugar cane or bananas; however, due to the adverse effects of s-triazine herbicides on living organisms use of these pesticides in the European Union has been banned. In the current study, we characterized the biodegradation of ametryn (100 mg L ) by entomopathogenic fungal cosmopolite Metarhizium brunneum. Ametryn significantly inhibited the growth and glucose uptake in fungal cultures. The concentration of the xenobiotic drops to 87.75 mg L at the end of culturing and the biodegradation process leads to formation of four metabolites: 2-hydroxy atrazine, ethyl hydroxylated ametryn, S-demethylated ametryn and deethylametryn. Inhibited growth is reflected in the metabolomics data, where significant differences in concentrations of L-proline, gamma-aminobutyric acid, L-glutamine, 4-hydroxyproline, L-glutamic acid, ornithine and L-arginine were observed in the presence of the xenobiotic when compared to control cultures. The metabolomics data demonstrated that the presence of ametryn in the fungal culture induced oxidative stress and serious disruptions of the carbon and nitrogen metabolism. Our results provide deeper insights into the microorganism strategy for xenobiotic biodegradation which may result in future enhancements to ametryn removal by the tested strain.
[Mh] Termos MeSH primário: Herbicidas/isolamento & purificação
Metarhizium/metabolismo
Triazinas/metabolismo
[Mh] Termos MeSH secundário: Atrazina
Biodegradação Ambiental
Carbono/metabolismo
Ácido Glutâmico
Herbicidas/metabolismo
Herbicidas/farmacologia
Nitrogênio/metabolismo
Estresse Oxidativo/efeitos dos fármacos
Prolina
Saccharum/metabolismo
Triazinas/isolamento & purificação
Triazinas/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Herbicides); 0 (Triazines); 1SPQ95183Y (ametryne); 3KX376GY7L (Glutamic Acid); 7440-44-0 (Carbon); 9DLQ4CIU6V (Proline); N762921K75 (Nitrogen); QJA9M5H4IM (Atrazine)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171009
[St] Status:MEDLINE


  9 / 36121 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[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] Endereço: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] Título: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] País de publicação:England
[La] Idioma:eng
[Ab] Resumo: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] Termos MeSH primário: Araceae/efeitos dos fármacos
Araceae/genética
Biodegradação Ambiental
Cádmio/farmacocinética
Perfilação da Expressão Gênica
[Mh] Termos MeSH secundário: Araceae/metabolismo
Cádmio/metabolismo
Tolerância a Medicamentos/genética
Perfilação da Expressão Gênica/métodos
Genes de Plantas/efeitos dos fármacos
Genes de Plantas/genética
Análise de Sequência de RNA
Estresse Fisiológico/genética
Transcriptoma/efeitos dos fármacos
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
00BH33GNGH (Cadmium)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171009
[St] Status:MEDLINE


  10 / 36121 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28946118
[Au] Autor:Rybczynska-Tkaczyk K; Swiecilo A; Szychowski KA; Kornillowicz-Kowalska T
[Ad] Endereço:Department of Environmental Microbiology, Laboratory of Mycology, The University of Life Sciences, Leszczynskiego Street 7, Lublin 20-069, Poland. Electronic address: kamila.rybczynska-tkaczyk@up.lublin.pl.
[Ti] Título:Comparative study of eco- and cytotoxicity during biotransformation of anthraquinone dye Alizarin Blue Black B in optimized cultures of microscopic fungi.
[So] Source:Ecotoxicol Environ Saf;147:776-787, 2018 Jan.
[Is] ISSN:1090-2414
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The aim of this study was to select optimal conditions (C and N sources, initial pH and temperature) for biodecolorization of 0.03% anthraquinone dye Alizarin Blue Black B (ABBB) by microscopic fungi: Haematonectria haematococca BwIII43, K37 and Trichoderma harzianum BsIII33. The phenolic compounds, phytotoxicity (Lepidium sativum L.), biotoxicity (Microtox), cytotoxicity and yeast viability assay were performed to determine the extent of ABBB detoxification. Biodecolorization and detoxification of 0.03% ABBB in H. haematococca BwIII43 and T. harzianum BsIII33 cultures was correlated with extracellular oxidoreductases activity. In turn, secondary products, toxic to human fibroblasts and respiring sod1 Saccharomyces cerevisiae cells, were formed in H. haematococca K37 strain cultures, despite efficient decolorization.
[Mh] Termos MeSH primário: Antraquinonas/toxicidade
Corantes/toxicidade
Poluentes Químicos da Água/toxicidade
Purificação da Água/métodos
Leveduras/metabolismo
[Mh] Termos MeSH secundário: Antraquinonas/análise
Biodegradação Ambiental
Biotransformação
Linhagem Celular
Sobrevivência Celular/efeitos dos fármacos
Corantes/análise
Seres Humanos
Lepidium sativum/efeitos dos fármacos
Oxirredução
Testes de Toxicidade/métodos
Poluentes Químicos da Água/análise
Leveduras/efeitos dos fármacos
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anthraquinones); 0 (Coloring Agents); 0 (Water Pollutants, Chemical)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180308
[Lr] Data última revisão:
180308
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170926
[St] Status:MEDLINE



página 1 de 3613 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde