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  1 / 21902 MEDLINE  
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[PMID]:29346451
[Au] Autor:Chen H; Qian C; Liang C; Kang W
[Ad] Endereço:School of Materials Science and Engineering, Southeast University, Nanjing, Jiangsu province, China.
[Ti] Título:An approach for predicting the compressive strength of cement-based materials exposed to sulfate attack.
[So] Source:PLoS One;13(1):e0191370, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:In this paper, a support vector machine (SVM) model which can be used to predict the compressive strength of mortars exposed to sulfate attack was established. An accelerated corrosion test was applied to collect compressive strength data. For predicting the compressive strength of mortars, a total of 638 data samples obtained from experiment was chosen as a dataset to establish a SVM model. The values of the coefficient of determination, the mean absolute error, the mean absolute percentage error and the root mean square error were used for evaluating the predictive accuracy. The main factors affecting the predicted compressive strength were obtained by sensitivity analysis. A SVM model was calibrated, validated, and finally established. Moreover, the performance of the SVM model was compared to an artificial neural network (ANN) model. Results show that the prediction values from the SVM model were close to the experimental values; the main factors sensitive to concrete compressive strength were exposure time, water-cement ratio and sulfate ions; the performance of the SVM model was better than the ANN model. The SVM model developed in this study can be potentially used for predicting the compressive strength of cement-based materials servicing in harsh environments.
[Mh] Termos MeSH primário: Força Compressiva
Materiais de Construção
Teste de Materiais
Sulfatos
[Mh] Termos MeSH secundário: Redes Neurais (Computação)
Máquina de Vetores de Suporte
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Sulfates)
[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:180119
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191370


  2 / 21902 MEDLINE  
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[PMID]:29458537
[Au] Autor:Frolov EN; Zayulina KS; Kopitsyn DS; Kublanov IV; Bonch-Osmolovskaya EA; Chernyh NA
[Ad] Endereço:1​Winogradsky Institute of Microbiology, Research Centre of Biotechnology RAS, 33-2 Leninsky prospect, 119071, Moscow, Russia.
[Ti] Título:Desulfothermobacter acidiphilus gen. nov., sp. nov., a thermoacidophilic sulfate-reducing bacterium isolated from a terrestrial hot spring.
[So] Source:Int J Syst Evol Microbiol;68(3):871-875, 2018 Mar.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:An anaerobic sulfate-reducing micro-organism, strain 3408-1 , was isolated from a terrestrial hot spring in Kamchatka peninsula (Russia). The cells were spore-forming rods with a Gram-positive type of cell wall. The new isolate was a moderately thermoacidophilic anaerobe able to grow either by sulfate or thiosulfate respiration with H2 or formate as substrates, or by fermenting yeast extract, maltose, sucrose, glucose and pyruvate. The fermentation products were acetate, CO2 and H2. The pH range for growth was 2.9-6.5, with an optimum at 4.5. The temperature range for growth was 42-70 °C, with an optimum at 55 °C. The G+C content of DNA was 58 mol%. Phylogenetic analysis of the 16S rRNA gene showed that strain 3408-1 belongs to the family Thermoanaerobacteraceae, order Thermoanaerobacterales and was distantly related to the species of the genus Ammonifex(93-94 % sequence similarity). On the basis of physiological properties and results of phylogenetic analysis, strain 3408-1 is considered to represent a novel species of a new genus, for which the name Desulfothermobacter acidiphilus gen. nov., sp. nov. is proposed. The type strain is 3408-1 (=DSM 105356 =VKM B-3183 ).
[Mh] Termos MeSH primário: Firmicutes/classificação
Fontes Termais/microbiologia
Filogenia
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Ácidos Graxos/química
Fermentação
Firmicutes/genética
Firmicutes/isolamento & purificação
Oxirredução
RNA Ribossômico 16S/genética
Federação Russa
Análise de Sequência de DNA
Sulfatos/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (RNA, Ribosomal, 16S); 0 (Sulfates)
[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:180221
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002599


  3 / 21902 MEDLINE  
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[PMID]:29458461
[Au] Autor:Ben Ali Gam Z; Thioye A; Cayol JL; Joseph M; Fauque G; Labat M
[Ad] Endereço:1​Laboratoire de Microbiologie IRD, Aix-Marseille Université, Université du Sud Toulon-Var, CNRS/INSU, IRD, MI0 UM110, 163 avenue de Luminy, case 925, F-13288 Marseille cedex 9, France.
[Ti] Título:Characterization of Desulfovibrio salinus sp. nov., a slightly halophilic sulfate-reducing bacterium isolated from a saline lake in Tunisia.
[So] Source:Int J Syst Evol Microbiol;68(3):715-720, 2018 Mar.
[Is] ISSN:1466-5034
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:A novel slightly halophilic sulfate-reducing bacterium, designated strain P1BSR , was isolated from water of a saline lake in Tunisia. Strain P1BSR had motile (single polar flagellum), Gram-negative, rod-shaped, non-spore-forming cells, occurring singly or in pairs. Strain P1BSR grew at temperatures between 15 and 45 °C (optimum 40 °C), and in a pH range between 6 and 8.5 (optimum pH 6.7). The strain required NaCl for growth (1 % w/v), and tolerated high NaCl concentration (up to 12 % w/v) with an optimum of 3 % (w/v). Sulfate, thiosulfate and sulfite served as terminal electron acceptors, but not elemental sulfur, fumarate, nitrate and nitrite. Strain P1BSR utilized lactate, pyruvate, formate, d-fructose and glycerol as carbon and energy sources. The main cellular fatty acid was C16 : 0 (50.8 %). The genomic DNA G+C content was 47.7 mol%. Phylogenetic analysis of 16S rRNA gene sequence similarity indicated that strain P1BSR was affiliated to the genus Desulfovibrio, with the type strains Desulfovibrio salexigens (96.51 %), Desulfovibrio zosterae (95.68 %), Desulfovibrio hydrothermalis (94.81 %) and Desulfovibrio ferrireducens (94.73 %) as its closest phylogenetic relatives. On the basis of genotypic, phenotypic and phylogenetic characteristics, it is proposed to assign strain P1BSR to a novel species of the genus Desulfovibrio, Desulfovibrio salinus sp. nov. The type strain is P1BSR (=DSM 101510 =JCM 31065 ).
[Mh] Termos MeSH primário: Desulfovibrio/classificação
Lagos/microbiologia
Filogenia
Salinidade
[Mh] Termos MeSH secundário: Técnicas de Tipagem Bacteriana
Composição de Bases
DNA Bacteriano/genética
Desulfovibrio/genética
Desulfovibrio/isolamento & purificação
Ácidos Graxos/química
Oxirredução
RNA Ribossômico 16S/genética
Análise de Sequência de DNA
Sulfatos/metabolismo
Tunísia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (DNA, Bacterial); 0 (Fatty Acids); 0 (RNA, Ribosomal, 16S); 0 (Sulfates)
[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:180221
[St] Status:MEDLINE
[do] DOI:10.1099/ijsem.0.002567


  4 / 21902 MEDLINE  
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[PMID]:28278779
[Au] Autor:Lominchar MA; Rodríguez S; Lorenzo D; Santos N; Romero A; Santos A
[Ad] Endereço:a Dpto. Ingeniería Química, Facultad CC, Químicas , Universidad Complutense de Madrid , Madrid , Spain.
[Ti] Título:Phenol abatement using persulfate activated by nZVI, H O and NaOH and development of a kinetic model for alkaline activation.
[So] Source:Environ Technol;39(1):35-43, 2018 Jan.
[Is] ISSN:0959-3330
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Three persulfate (PS) activation methods (nanoparticles of zero-valent iron (nZVI), hydrogen peroxide and alkali) were compared using phenol as target pollutant. Firstly, four experiments were conducted at 25°C in a batch way using the same initial phenol and oxidant concentrations (10 mM and 420 mM, respectively), being the molar ratio activator/PS fixed to 0.005 with nZVI (mass ratio 0.0011 nZVI/PS), to 2 using hydrogen peroxide and to 2 and 4 with NaOH. Phenol and PS conversions and aromatic byproducts profiles during 168 h reaction time were measured and compared, as well as mineralization and ecotoxicity of the samples. It was found that both phenol and aromatic byproducts (catechol and hydroquinone) totally disappeared using PS activated by alkali before 24 h, while a significant amount of aromatic intermediates was obtained with nZVI and H O . Additional runs were carried out using shorter times (0-2 h) to discriminate the oxidation route and the kinetic model of phenol abatement by using PS activated by alkali. Different initial concentrations of phenol (5-15 mM), PS (210 and 420 mM) and molar ratio NaOH/PS (2 and 4) were employed. The kinetic model obtained predicts accurately the evolution of phenol, persulfate, hydroquinone and catechol.
[Mh] Termos MeSH primário: Modelos Químicos
Nanopartículas/química
Fenol/química
Hidróxido de Sódio/química
Sulfatos/química
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Peróxido de Hidrogênio
Ferro
Cinética
Oxirredução
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Sulfates); 0 (Water Pollutants, Chemical); 339NCG44TV (Phenol); 55X04QC32I (Sodium Hydroxide); BBX060AN9V (Hydrogen Peroxide); E1UOL152H7 (Iron)
[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:170311
[St] Status:MEDLINE
[do] DOI:10.1080/09593330.2017.1294203


  5 / 21902 MEDLINE  
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[PMID]:28271743
[Au] Autor:Wu H; Sun L; Wang H; Wang X
[Ad] Endereço:a Key Laboratory of Regional Environment and Eco-Remediation , Ministry of Education, Shenyang University , Shenyang , People's Republic of China.
[Ti] Título:In situ sodium persulfate/calcium peroxide oxidation in remediation of TPH-contaminated soil in 3D-sand box.
[So] Source:Environ Technol;39(1):91-101, 2018 Jan.
[Is] ISSN:0959-3330
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The aim of this article was to obtain the application parameters and conditions of in situ sodium persulfate/calcium peroxide oxidation. For the purposes of remediation, soil from a total petroleum hydrocarbons (TPH)-contaminated site was collected and prepared to reflect the actual stratum condition in a newly developed soil remediation modeling apparatus. Application methods of soil mixture, natural infiltration, direct injection and groundwater circulation were used to simulate in situ sodium persulfate oxidation in TPH-contaminated soil. Results showed that the transfer capability of Na S O in simulated soil was strong Na S O migrated to the saturated layer after 3 days of in situ injection, which then continued both horizontal and vertical migration. After 7 days the oxidant was widespread in the saturated layer with a radius of influence of 0.4 m. It was found that mixing CaO /Fe /CA with soil and spraying Na S O can effectively repair the surface-contaminated soil, and the longitudinal migration of Na S O in the reaction process can further strengthen the remediation of the upper layer soil. Due to the buffering effect of the soil, the effect of oxidation on the pH and temperature of different soil layers was small, but detectable in comparison to natural environmental factors.
[Mh] Termos MeSH primário: Recuperação e Remediação Ambiental/métodos
Hidrocarbonetos/química
Peróxidos/química
Poluição por Petróleo/análise
Petróleo/análise
Poluentes do Solo/análise
[Mh] Termos MeSH secundário: Oxirredução
Petróleo/metabolismo
Compostos de Sódio
Poluentes do Solo/química
Sulfatos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Hydrocarbons); 0 (Peroxides); 0 (Petroleum); 0 (Sodium Compounds); 0 (Soil Pollutants); 0 (Sulfates); 7FRO2ENO91 (calcium peroxide); J49FYF16JE (sodium persulfate)
[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:170309
[St] Status:MEDLINE
[do] DOI:10.1080/09593330.2017.1296029


  6 / 21902 MEDLINE  
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[PMID]:28461447
[Au] Autor:Hoffmann MC; Pfänder Y; Tintel M; Masepohl B
[Ad] Endereço:Biologie der Mikroorganismen, Fakultät für Biologie und Biotechnologie, Ruhr-Universität Bochum, Bochum, Germany.
[Ti] Título:Bacterial PerO Permeases Transport Sulfate and Related Oxyanions.
[So] Source:J Bacteriol;199(14), 2017 07 15.
[Is] ISSN:1098-5530
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:synthesizes the high-affinity ABC transporters CysTWA and ModABC to specifically import the chemically related oxyanions sulfate and molybdate, respectively. In addition, has the low-affinity permease PerO acting as a general oxyanion transporter, whose elimination increases tolerance to molybdate and tungstate. Although PerO-like permeases are widespread in bacteria, their function has not been examined in any other species to date. Here, we present evidence that PerO permeases from the alphaproteobacteria , , , and and the gammaproteobacterium functionally substitute for PerO in sulfate uptake and sulfate-dependent growth, as shown by assimilation of radioactively labeled sulfate and heterologous complementation. Disruption of genes in , , and increased tolerance to tungstate and, in the case of , to molybdate, suggesting that heterometal oxyanions are common substrates of PerO permeases. This study supports the view that bacterial PerO permeases typically transport sulfate and related oxyanions and, hence, form a functionally conserved permease family. Despite the widespread distribution of PerO-like permeases in bacteria, our knowledge about PerO function until now was limited to one species, In this study, we showed that PerO proteins from diverse bacteria are functionally similar to the prototype, suggesting that PerO permeases form a conserved family whose members transport sulfate and related oxyanions.
[Mh] Termos MeSH primário: Proteínas de Bactérias/metabolismo
Proteínas de Membrana Transportadoras/metabolismo
Rhodobacter capsulatus/enzimologia
Sulfatos/metabolismo
[Mh] Termos MeSH secundário: Ânions/metabolismo
Proteínas de Bactérias/genética
Transporte Biológico/fisiologia
Regulação Bacteriana da Expressão Gênica/fisiologia
Regulação Enzimológica da Expressão Gênica/fisiologia
Proteínas de Membrana Transportadoras/genética
Mutação
Rhodobacter capsulatus/genética
Rhodobacter capsulatus/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anions); 0 (Bacterial Proteins); 0 (Membrane Transport Proteins); 0 (Sulfates)
[Em] Mês de entrada:1707
[Cu] Atualização por classe:180306
[Lr] Data última revisão:
180306
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE


  7 / 21902 MEDLINE  
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[PMID]:29478647
[Au] Autor:Yan J; Chen L; Lin Q; Zhao S; Li L
[Ad] Endereço:Key Laboratory of Global Change and Marine-Atmospheric Chemistry, Third Institute of Oceanography, SOA, Xiamen 361005, China. Electronic address: jpyan@tio.org.cn.
[Ti] Título:Pollutants identification of ambient aerosols by two types of aerosol mass spectrometers over southeast coastal area, China.
[So] Source:J Environ Sci (China);64:252-263, 2018 Feb.
[Is] ISSN:1001-0742
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:Two different aerosol mass spectrometers, Aerodyne Aerosol Mass Spectrometer (AMS) and Single Particle Aerosol Mass Spectrometer (SPAMS) were deployed to identify the aerosol pollutants over Xiamen, representing the coastal urban area. Five obvious processes were classified during the whole observation period. Organics and sulfate were the dominant components in ambient aerosols over Xiamen. Most of the particles were in the size range of 0.2-1.0µm, accounting for over 97% of the total particles measured by both instruments. Organics, as well as sulfate, measured by AMS were in good correlation with measured by SPAMS. However, high concentration of NH was obtained by AMS, while extremely low value of NH was detected by SPAMS. Contrarily, high particle number counts of NO and Cl were given by SPAMS while low concentrations of NO and Cl were measured by AMS. The variations of POA and SOA obtained from SPAMS during event 1 and event 2 were in accordance with the analysis of HOA and OOA given by AMS, suggesting that both of AMS and SPAMS can well identify the organic clusters of aerosol particles. Overestimate or underestimate of the aerosol sources and acidity would be present in some circumstances when the measurement results were used to analyze the aerosol properties, because of the detection loss of some species for both instruments.
[Mh] Termos MeSH primário: Aerossóis/análise
Poluentes Atmosféricos/análise
Monitoramento Ambiental/instrumentação
Material Particulado/análise
[Mh] Termos MeSH secundário: China
Tamanho da Partícula
Sulfatos/análise
Óxidos de Enxofre/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Aerosols); 0 (Air Pollutants); 0 (Particulate Matter); 0 (Sulfates); 0 (Sulfur Oxides)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180301
[Lr] Data última revisão:
180301
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180227
[St] Status:MEDLINE


  8 / 21902 MEDLINE  
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[PMID]:29268102
[Au] Autor:Burgos-Castillo RC; Sirés I; Sillanpää M; Brillas E
[Ad] Endereço:Laboratory of Green Chemistry, School of Engineering Science, Lappeenranta University of Technology, Sammonkatu 12, FI-50130 Mikkeli, Finland. Electronic address: rutely.burgos.castillo@lut.fi.
[Ti] Título:Application of electrochemical advanced oxidation to bisphenol A degradation in water. Effect of sulfate and chloride ions.
[So] Source:Chemosphere;194:812-820, 2018 Mar.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Electrochemical oxidation with electrogenerated H O (EO- H O ), electro-Fenton (EF), photoelectro-Fenton (PEF) and solar PEF (SPEF) have been applied to mineralize bisphenol A solutions in 0.050 M Na SO or 0.008 M NaCl + 0.047 M Na SO at pH 3.0. The assays were performed in an undivided cell with a boron-doped diamond (BDD) anode and an air-diffusion cathode for continuous H O production. The PEF and SPEF processes yielded almost total mineralization due to the potent synergistic action of generated hydroxyl radicals and active chlorine, in conjunction with the photolytic action of UV radiation. The higher intensity of UV rays from sunlight explained the superior oxidation ability of SPEF. The effect of applied current density was studied in all treatments, whereas the role of bisphenol A concentration was examined in PEF. Bisphenol A abatement followed a pseudo-first-order kinetics, which was very quick in SPEF since UV light favored a large production of hydroxyl radicals from Fenton's reaction. Eight non-chlorinated and six chlorinated aromatics were identified as primary products in the chloride matrix. Ketomalonic, tartronic, maleic and oxalic acids were detected as final short-chain aliphatic carboxylic acids. The large stability of Fe(III)-oxalate complexes in EF compared to their fast photomineralization in PEF and PEF accounted for by the superior oxidation power of the latter processes.
[Mh] Termos MeSH primário: Compostos Benzidrílicos/química
Cloretos/farmacologia
Técnicas Eletroquímicas/métodos
Fenóis/química
Fotólise
Sulfatos/farmacologia
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Peróxido de Hidrogênio/química
Radical Hidroxila/química
Ferro/química
Oxirredução
Raios Ultravioleta
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Benzhydryl Compounds); 0 (Chlorides); 0 (Phenols); 0 (Sulfates); 0 (Water Pollutants, Chemical); 3352-57-6 (Hydroxyl Radical); BBX060AN9V (Hydrogen Peroxide); E1UOL152H7 (Iron); MLT3645I99 (bisphenol A)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180228
[Lr] Data última revisão:
180228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171222
[St] Status:MEDLINE


  9 / 21902 MEDLINE  
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[PMID]:28743765
[Au] Autor:Kurmanbayeva A; Bekturova A; Srivastava S; Soltabayeva A; Asatryan A; Ventura Y; Khan MS; Salazar O; Fedoroff N; Sagi M
[Ad] Endereço:Plant Stress Laboratory, French Associates Institute for Agriculture and Biotechnology of Drylands, Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, 84990, Israel.
[Ti] Título:Higher Novel L-Cys Degradation Activity Results in Lower Organic-S and Biomass in than the Related Saltwort, .
[So] Source:Plant Physiol;175(1):272-289, 2017 Sep.
[Is] ISSN:1532-2548
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:and are almost identical halophytes whose edible succulent shoots hold promise for commercial production in saline water. Enhanced sulfur nutrition may be beneficial to crops naturally grown on high sulfate. However, little is known about sulfate nutrition in halophytes. Here we show that (ecotype RN) exhibits a significant increase in biomass and organic-S accumulation in response to supplemental sulfate, whereas (ecotype VM) does not, instead exhibiting increased sulfate accumulation. We investigated the role of two pathways on organic-S and biomass accumulation in and : the sulfate reductive pathway that generates Cys and l-Cys desulfhydrase that degrades Cys to H S, NH , and pyruvate. The major function of -acetyl-Ser-(thiol) lyase (OAS-TL; EC 2.5.1.47) is the formation of l-Cys, but our study shows that the OAS-TL A and OAS-TL B of both halophytes are enzymes that also degrade l-Cys to H S. This activity was significantly higher in than in , especially upon sulfate supplementation. The activity of the sulfate reductive pathway key enzyme, adenosine 5'-phosphosulfate reductase (APR, EC 1.8.99.2), was significantly higher in than in These results suggest that the low organic-S level in is the result of high l-Cys degradation rate by OAS-TLs, whereas the greater organic-S and biomass accumulation in is the result of higher APR activity and low l-Cys degradation rate, resulting in higher net Cys biosynthesis. These results present an initial road map for halophyte growers to attain better growth rates and nutritional value of and .
[Mh] Termos MeSH primário: Amaranthaceae/metabolismo
Chenopodiaceae/metabolismo
Cisteína/metabolismo
Proteínas de Plantas/metabolismo
Salsola/metabolismo
Enxofre/metabolismo
[Mh] Termos MeSH secundário: Amaranthaceae/efeitos dos fármacos
Biomassa
Chenopodiaceae/efeitos dos fármacos
Cisteína Sintase/metabolismo
Oxirredutases atuantes sobre Doadores de Grupo Enxofre/metabolismo
Salinidade
Salsola/efeitos dos fármacos
Plantas Tolerantes a Sal
Sódio/farmacologia
Sulfatos/farmacologia
Compostos de Sulfidrila/metabolismo
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Plant Proteins); 0 (Sulfates); 0 (Sulfhydryl Compounds); 70FD1KFU70 (Sulfur); 9NEZ333N27 (Sodium); EC 1.8.- (Oxidoreductases Acting on Sulfur Group Donors); EC 1.8.99.2 (adenylylsulfate reductase); EC 2.5.1.47 (Cysteine Synthase); K848JZ4886 (Cysteine)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180226
[Lr] Data última revisão:
180226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170727
[St] Status:MEDLINE
[do] DOI:10.1104/pp.17.00780


  10 / 21902 MEDLINE  
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[PMID]:28746983
[Au] Autor:Kurogi K; Sakakibara Y; Suiko M; Liu MC
[Ad] Endereço:Department of Pharmacology, College of Pharmacy and Pharmaceutical Sciences, University of Toledo Health Science Campus, OH, USA.
[Ti] Título:Sulfation of vitamin D -related compounds-identification and characterization of the responsible human cytosolic sulfotransferases.
[So] Source:FEBS Lett;591(16):2417-2425, 2017 08.
[Is] ISSN:1873-3468
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:While 25-hydroxyvitamin D 3-O-sulfate is known to be present in circulation, how it is generated in the body remains unclear. This study aimed to investigate its sulfation in major human organs and to unveil the responsible cytosolic sulfotransferases (SULTs). Of the vitamin D -related compounds tested, 25-hydroxyvitamin D and 7-dehydrocholesterol are preferentially sulfated by human organ cytosols. Among the 13 human SULTs, SULT2A1 shows sulfating activity toward all vitamin D -related compounds, whereas SULT1A1 and SULT2B1a/SULT2B1b show sulfating activity exclusively for, respectively, calcitriol and 7-dehydrocholesterol. These findings suggest that the metabolic pathway leading to the formation of 25-hydroxyvitamin D 3-O-sulfate may be mediated by the sulfation of 25-hydroxyvitamin D or by the conversion of 7-dehydrocholesterol-3-O-sulfate in the skin.
[Mh] Termos MeSH primário: Calcifediol/metabolismo
Citosol/enzimologia
Desidrocolesteróis/metabolismo
Sulfatos/metabolismo
Sulfotransferases/metabolismo
[Mh] Termos MeSH secundário: Seres Humanos
Concentração de Íons de Hidrogênio
Cinética
[Pt] Tipo de publicação:LETTER; RESEARCH SUPPORT, N.I.H., EXTRAMURAL
[Nm] Nome de substância:
0 (Dehydrocholesterols); 0 (Sulfates); BK1IU07GKF (7-dehydrocholesterol); EC 2.8.2.- (Sulfotransferases); P6YZ13C99Q (Calcifediol)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:180220
[Lr] Data última revisão:
180220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170727
[St] Status:MEDLINE
[do] DOI:10.1002/1873-3468.12767



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