Base de dados : MEDLINE
Pesquisa : D01.045.125 [Categoria DeCS]
Referências encontradas : 5617 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 562 ir para página                         

  1 / 5617 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29311545
[Au] Autor:Chrachri A; Hopkinson BM; Flynn K; Brownlee C; Wheeler GL
[Ad] Endereço:Marine Biological Association, Plymouth, PL1 2PB, UK.
[Ti] Título:Dynamic changes in carbonate chemistry in the microenvironment around single marine phytoplankton cells.
[So] Source:Nat Commun;9(1):74, 2018 01 08.
[Is] ISSN:2041-1723
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Photosynthesis by marine diatoms plays a major role in the global carbon cycle, although the precise mechanisms of dissolved inorganic carbon (DIC) uptake remain unclear. A lack of direct measurements of carbonate chemistry at the cell surface has led to uncertainty over the underlying membrane transport processes and the role of external carbonic anhydrase (eCA). Here we identify rapid and substantial photosynthesis-driven increases in pH and [CO ] primarily due to the activity of eCA at the cell surface of the large diatom Odontella sinensis using direct simultaneous microelectrode measurements of pH and CO along with modelling of cell surface inorganic carbonate chemistry. Our results show that eCA acts to maintain cell surface CO concentrations, making a major contribution to DIC supply in O. sinensis. Carbonate chemistry at the cell surface is therefore highly dynamic and strongly dependent on cell size, morphology and the carbonate chemistry of the bulk seawater.
[Mh] Termos MeSH primário: Carbonatos/metabolismo
Microambiente Celular
Diatomáceas/metabolismo
Fitoplâncton/metabolismo
[Mh] Termos MeSH secundário: Transporte Biológico
Carbono/química
Carbono/metabolismo
Dióxido de Carbono/química
Dióxido de Carbono/metabolismo
Carbonatos/química
Anidrases Carbônicas/metabolismo
Diatomáceas/citologia
Concentração de Íons de Hidrogênio
Modelos Biológicos
Fotossíntese
Fitoplâncton/citologia
Água do Mar/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Carbonates); 142M471B3J (Carbon Dioxide); 7440-44-0 (Carbon); EC 4.2.1.1 (Carbonic Anhydrases)
[Em] Mês de entrada:1803
[Cu] Atualização por classe:180305
[Lr] Data última revisão:
180305
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180110
[St] Status:MEDLINE
[do] DOI:10.1038/s41467-017-02426-y


  2 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29121567
[Au] Autor:Li Y; Li L; Chen ZX; Zhang J; Gong L; Wang YX; Zhao HQ; Mu Y
[Ad] Endereço:CAS Key Laboratory of Urban Pollutant Conversion, Collaborative Innovation Centre of Suzhou Nano Science and Technology, Department of Chemistry, University of Science and Technology of China, Hefei, China.
[Ti] Título:Carbonate-activated hydrogen peroxide oxidation process for azo dye decolorization: Process, kinetics, and mechanisms.
[So] Source:Chemosphere;192:372-378, 2018 Feb.
[Is] ISSN:1879-1298
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Advanced oxidation processes offer effective solutions in treating wastewater from various industries. This study is the first time to investigate the potential of carbonate-activated hydrogen peroxide (CAP) oxidation process for the removal of organic pollutant from highly alkaline wastewaters. Azo dye acid orange 7 (AO7) was selected as a model pollutant. The influences of various parameters on AO7 decolorization by the CAP oxidation were evaluated. Furthermore, the active species involved in AO7 degradation were explored using scavenger experiments and electron spin resonance analysis. Additionally, AO7 degradation products by the CAP oxidation were identified to elucidate possible transformation pathways. Results showed that the CAP oxidation had better AO7 decolorization performance compared to bicarbonate-activated hydrogen peroxide method. The AO7 decolorization efficiency augmented from 3.70 ± 0.76% to 54.27 ± 2.65% when carbonate concentration was increased from 0 to 50 mM at pH 13.0, and then changed slightly with further increasing carbonate concentration to 70 mM. It increased almost linearly from 5.95 ± 0.32% to 94.03 ± 0.39% as H O concentration was increased from 5 to 50 mM. Moreover, trace amount of Co(II) could facilitate AO7 decolorization by the CAP reaction. Superoxide and carbonate radicals might be the main reactive oxygen species involved in the CAP process. Finally, a possible degradation pathway of AO7 by the CAP oxidation was proposed based on the identified products.
[Mh] Termos MeSH primário: Compostos Azo/química
Carbonatos/química
Corantes/química
Recuperação e Remediação Ambiental/métodos
Peróxidos/química
[Mh] Termos MeSH secundário: Benzenossulfonatos
Bicarbonatos
Poluentes Ambientais/química
Peróxido de Hidrogênio
Cinética
Oxirredução
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Azo Compounds); 0 (Benzenesulfonates); 0 (Bicarbonates); 0 (Carbonates); 0 (Coloring Agents); 0 (Environmental Pollutants); 0 (Peroxides); BBX060AN9V (Hydrogen Peroxide); Q1LIY3BO0U (2-naphthol orange)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180212
[Lr] Data última revisão:
180212
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171110
[St] Status:MEDLINE


  3 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28464556
[Au] Autor:Zhong W; Bobbink FD; Fei Z; Dyson PJ
[Ad] Endereço:College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, 314001, P. R. China.
[Ti] Título:Polyimidazolium Salts: Robust Catalysts for the Cycloaddition of Carbon Dioxide into Carbonates in Solvent-Free Conditions.
[So] Source:ChemSusChem;10(13):2728-2735, 2017 07 10.
[Is] ISSN:1864-564X
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:There is a growing interest in sustainable heterogeneous catalysts based on organic polymers. Here, we describe a series of polyimidazolium salt catalysts, prepared from the direct reaction of arene-bridged bis- and tris-alkyl halides with trimethylsilylimidazole. The polyimidazolium salts were characterized by spectroscopic and analytical techniques and it was found that their morphology and porosity could be controlled by adjusting the steric parameters of the spacer in the alkyl-halide starting materials. Moreover, the polymers are excellent heterogeneous organocatalysts for the cycloaddition of CO to epoxides to afford cyclic carbonates at atmospheric pressure under solvent-free conditions. The polymer catalysts exhibit long-term stability and may be recycled and reused at least 10 times.
[Mh] Termos MeSH primário: Dióxido de Carbono/química
Carbonatos/química
Carbonatos/síntese química
Reação de Cicloadição
Imidazóis/química
[Mh] Termos MeSH secundário: Pressão Atmosférica
Catálise
Reciclagem
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Carbonates); 0 (Imidazoles); 142M471B3J (Carbon Dioxide)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:180118
[Lr] Data última revisão:
180118
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170503
[St] Status:MEDLINE
[do] DOI:10.1002/cssc.201700570


  4 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28836872
[Au] Autor:Dettmar PW; Gil-Gonzalez D; Fisher J; Flint L; Rainforth D; Moreno-Herrera A; Potts M
[Ad] Endereço:a Research Department , Technostics Limited, Castle Hill Hospital , Cottingham , UK.
[Ti] Título:A comparative study on the raft chemical properties of various alginate antacid raft-forming products.
[So] Source:Drug Dev Ind Pharm;44(1):30-39, 2018 Jan.
[Is] ISSN:1520-5762
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:OBJECTIVE: Research to measure the chemical characterization of alginate rafts for good raft performance and ascertain how formulation can affect chemical parameters. SIGNIFICANCE: A selection of alginate formulations was investigated all claiming to be proficient raft formers with significance between products established and ranked. METHODS: Procedures were selected which demonstrated the chemical characterization allowing rafts to effectively impede the reflux into the esophagus or in severe cases to be refluxed preferentially into the esophagus and exert a demulcent effect, with focus of current research on methods which complement previous studies centered on physical properties. The alginate content was analyzed by a newly developed HPLC method. Methods were used to determine the neutralization profile and the acid neutralization within the raft determined along with how raft structure affects neutralization. RESULTS: Alginate content of Gaviscon Double Action (GDA) within the raft was significantly superior (p < .0001) to all competitor products. The two products with the highest raft acid neutralization capacity were GDA and Rennie Duo, the latter product not being a raft former. Raft structure was key and GDA had the right level of porosity to allow for longer duration of neutralization. CONCLUSION: Alginate formulations require three chemical reactions to take place simultaneously: transformation to alginic acid, sodium carbonate reacting to form carbon dioxide, calcium releasing free calcium ions to bind with alginic acid providing strength to raft formation. GDA was significantly superior (p <.0001) to all other comparators.
[Mh] Termos MeSH primário: Alginatos/química
Hidróxido de Alumínio/química
Antiácidos/química
Carbonato de Cálcio/química
Carbonatos/química
Esôfago/química
Refluxo Gastroesofágico/tratamento farmacológico
Magnésio/química
Ácido Silícico/química
Bicarbonato de Sódio/química
[Mh] Termos MeSH secundário: Alginatos/farmacologia
Alginatos/uso terapêutico
Antiácidos/metabolismo
Antiácidos/uso terapêutico
Combinação de Medicamentos
Impedância Elétrica
Refluxo Gastroesofágico/metabolismo
Ácido Glucurônico/química
Ácido Glucurônico/farmacologia
Ácido Glucurônico/uso terapêutico
Ácidos Hexurônicos/química
Ácidos Hexurônicos/farmacologia
Ácidos Hexurônicos/uso terapêutico
Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alginates); 0 (Antacids); 0 (Carbonates); 0 (Drug Combinations); 0 (Hexuronic Acids); 1343-98-2 (Silicic Acid); 45P3261C7T (sodium carbonate); 5QB0T2IUN0 (Aluminum Hydroxide); 66220-44-8 (alginate, aluminium hydroxide, magnesium trisilicate, sodium bicarbonate drug combination); 82351-35-7 (Rennie); 8A5D83Q4RW (Glucuronic Acid); 8C3Z4148WZ (alginic acid); 8MDF5V39QO (Sodium Bicarbonate); H0G9379FGK (Calcium Carbonate); I38ZP9992A (Magnesium)
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180111
[Lr] Data última revisão:
180111
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170825
[St] Status:MEDLINE
[do] DOI:10.1080/03639045.2017.1371737


  5 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29190826
[Au] Autor:Li X; Roevros N; Dehairs F; Chou L
[Ad] Endereço:Service de Biogéochimie et Modélisation du Système Terre - Océanographie Chimique et Géochimie des Eaux, Université Libre de Bruxelles (ULB), Brussels, Belgium.
[Ti] Título:Biological responses of the marine diatom Chaetoceros socialis to changing environmental conditions: A laboratory experiment.
[So] Source:PLoS One;12(11):e0188615, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Diatoms constitute a major group of phytoplankton, accounting for ~20% of the world's primary production. It has been shown that iron (Fe) can be the limiting factor for phytoplankton growth, in particular, in the HNLC (High Nutrient Low Chlorophyll) regions. Iron plays thus an essential role in governing the marine primary productivity and the efficiency of biological carbon pump. Oceanic systems are undergoing continuous modifications at varying rates and magnitudes as a result of changing climate. The objective of our research is to evaluate how changing environmental conditions (dust deposition, ocean warming and acidification) can affect marine Fe biogeochemistry and diatom growth. Laboratory culture experiments using a marine diatom Chaetoceros socialis were conducted at two temperatures (13°C and 18°C) and under two pCO2 (carbon dioxide partial pressure) (400 µatm and 800 µatm) conditions. The present study clearly highlights the effect of ocean acidification on enhancing the release of Fe upon dust deposition. Our results also confirm that being a potential source of Fe, dust provides in addition a readily utilizable source of macronutrients such as dissolved phosphate (PO4) and silicate (DSi). However, elevated atmospheric CO2 concentrations may also have an adverse impact on diatom growth, causing a decrease in cell size and possible further changes in phytoplankton composition. Meanwhile, ocean warming may lead to the reduction of diatom production and cell size, inducing poleward shifts in the biogeographic distribution of diatoms. The changing climate has thus a significant implication for ocean phytoplankton growth, cell size and primary productivity, phytoplankton distribution and community composition, and carbon (C), nitrogen (N), phosphorus (P), silicon (Si) and Fe biogeochemical cycles in various ways.
[Mh] Termos MeSH primário: Diatomáceas/fisiologia
Biologia Marinha
[Mh] Termos MeSH secundário: Carbonatos/química
Clorofila/metabolismo
Mudança Climática
Diatomáceas/crescimento & desenvolvimento
Diatomáceas/metabolismo
Poeira
Oceanos e Mares
Água do Mar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbonates); 0 (Dust); 1406-65-1 (Chlorophyll)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171229
[Lr] Data última revisão:
171229
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171201
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188615


  6 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29195123
[Au] Autor:Saleh AS; Lee JY; Jo Y; Yun JI
[Ad] Endereço:Department of Nuclear and Quantum Engineering, KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea; Nuclear Chemistry Department, Hot Laboratories Center, Egyptian Atomic Energy Authority, Inshas, Cairo 13759, Egypt.
[Ti] Título:Uranium(VI) sorption complexes on silica in the presence of calcium and carbonate.
[So] Source:J Environ Radioact;182:63-69, 2018 Feb.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Uranium sorption on minerals and related solids depends to a large degree on its aqueous speciation. The present work attempts to understand the U(VI) sorption behavior on silica under environmentally relevant conditions, i.e. at neutral to weakly alkaline pH and in the presence of dissolved calcium and carbonate. Under these conditions, Ca(UO )(CO ) and Ca (UO )(CO ) (aq) complexes emerge as the dominant aqueous U(VI) species. The U(VI) sorption affinity was measured as a function of contact time, solution pH, and humic acid. The U(VI) sorption decreased with increase of pH and was not affected by the addition of 50 mg/L humic acid. On the other hand, nitric acid was more effective than EDTA and carbonate at desorbing U(VI). Generally, the U(VI) sorbed on silica at neutral pH was less readily desorbed than that sorbed at higher pH values. Therefore, the U(VI) complex favorably sorbed on silica at the neutral pH is more strongly bound to the silica surface than that sorbed at higher pH values. Time-resolved laser fluorescence spectroscopy confirmed the results of the batch sorption experiments and revealed the presence of two surface U(VI) complexes with fluorescence lifetimes 251 ± 8 µs and 807 ± 24 µs.
[Mh] Termos MeSH primário: Modelos Químicos
Dióxido de Silício/química
Urânio/análise
[Mh] Termos MeSH secundário: Adsorção
Cálcio/química
Carbonatos/química
Substâncias Húmicas
Concentração de Íons de Hidrogênio
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbonates); 0 (Humic Substances); 4OC371KSTK (Uranium); 7631-86-9 (Silicon Dioxide); SY7Q814VUP (Calcium)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171228
[Lr] Data última revisão:
171228
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171202
[St] Status:MEDLINE


  7 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:29176815
[Au] Autor:Reidenbach LB; Fernandez PA; Leal PP; Noisette F; McGraw CM; Revill AT; Hurd CL; Kübler JE
[Ad] Endereço:Department of Biology, California State University at Northridge, Northridge, California, United States of America.
[Ti] Título:Growth, ammonium metabolism, and photosynthetic properties of Ulva australis (Chlorophyta) under decreasing pH and ammonium enrichment.
[So] Source:PLoS One;12(11):e0188389, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The responses of macroalgae to ocean acidification could be altered by availability of macronutrients, such as ammonium (NH4+). This study determined how the opportunistic macroalga, Ulva australis responded to simultaneous changes in decreasing pH and NH4+ enrichment. This was investigated in a week-long growth experiment across a range of predicted future pHs with ambient and enriched NH4+ treatments followed by measurements of relative growth rates (RGR), NH4+ uptake rates and pools, total chlorophyll, and tissue carbon and nitrogen content. Rapid light curves (RLCs) were used to measure the maximum relative electron transport rate (rETRmax) and maximum quantum yield of photosystem II (PSII) photochemistry (Fv/Fm). Photosynthetic capacity was derived from the RLCs and included the efficiency of light harvesting (α), slope of photoinhibition (ß), and the light saturation point (Ek). The results showed that NH4+ enrichment did not modify the effects of pH on RGRs, NH4+ uptake rates and pools, total chlorophyll, rETRmax, α, ß, Fv/Fm, tissue C and N, and the C:N ratio. However, Ek was differentially affected by pH under different NH4+ treatments. Ek increased with decreasing pH in the ambient NH4+ treatment, but not in the enriched NH4+ treatment. NH4+ enrichment increased RGRs, NH4+ pools, total chlorophyll, rETRmax, α, ß, Fv/Fm, and tissue N, and decreased NH4+ uptake rates and the C:N ratio. Decreased pH increased total chlorophyll content, rETRmax, Fv/Fm, and tissue N content, and decreased the C:N ratio. Therefore, the results indicate that U. australis growth is increased with NH4+ enrichment and not with decreasing pH. While decreasing pH influenced the carbon and nitrogen metabolisms of U. australis, it did not result in changes in growth.
[Mh] Termos MeSH primário: Compostos de Amônio/metabolismo
Fotossíntese
Ulva/crescimento & desenvolvimento
Ulva/metabolismo
[Mh] Termos MeSH secundário: Carbono/metabolismo
Carbonatos/análise
Clorofila/metabolismo
Concentração de Íons de Hidrogênio
Luz
Nitrogênio/metabolismo
Fotossíntese/efeitos da radiação
Água do Mar
Ulva/efeitos da radiação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Ammonium Compounds); 0 (Carbonates); 1406-65-1 (Chlorophyll); 7440-44-0 (Carbon); N762921K75 (Nitrogen)
[Em] Mês de entrada:1712
[Cu] Atualização por classe:171219
[Lr] Data última revisão:
171219
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:171128
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0188389


  8 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28947086
[Au] Autor:Beccia MR; Matara-Aho M; Reeves B; Roques J; Solari PL; Monfort M; Moulin C; Den Auwer C
[Ad] Endereço:Université Côte d'Azur, CNRS, Institut de Chimie de Nice, UMR 7272, 06108 Nice, France. Electronic address: BECCIA@unice.fr.
[Ti] Título:New insight into the ternary complexes of uranyl carbonate in seawater.
[So] Source:J Environ Radioact;178-179:343-348, 2017 Nov.
[Is] ISSN:1879-1700
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Uranium is naturally present in seawater at trace levels and may in some cases be present at higher concentrations, due to anthropogenic nuclear activities. Understanding uranium speciation in seawater is thus essential for predicting and controlling its behavior in this specific environmental compartment and consequently, its possible impact on living organisms. The carbonato calcic complex Ca UO (CO ) was previously identified as the main uranium species in natural seawater, together with CaUO (CO ) . In this work, we further investigate the role of the alkaline earth cation in the structure of the ternary uranyl-carbonate complexes. For this purpose, artificial seawater, free of Mg and Ca , using Sr as a spectroscopic probe was prepared. Combining TRLIF and EXAFS spectroscopy, together with DFT and theoretical thermodynamic calculations, evidence for the presence of Sr alkaline earth counter ion in the complex structure can be asserted. Furthermore, data suggest that when Ca is replaced by Sr , SrUO (CO ) is the main complex in solution and it occurs with the presence of at least one monodentate carbonate in the uranyl coordination sphere.
[Mh] Termos MeSH primário: Carbonatos/análise
Modelos Químicos
Água do Mar/química
Urânio/análise
[Mh] Termos MeSH secundário: Adsorção
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbonates); 4OC371KSTK (Uranium)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171110
[Lr] Data última revisão:
171110
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170927
[St] Status:MEDLINE


  9 / 5617 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28854648
[Au] Autor:Tadeo E; Muñiz E; Rull J; Yee WL; Aluja M; Lasa R
[Ad] Endereço:Red de Manejo Biorracional de Plagas y Vectores, Instituto de Ecología, A.C., Xalapa, Veracruz 91070, México.
[Ti] Título:Development of a Low-Cost and Effective Trapping Device for Apple Maggot Fly (Diptera: Tephritidae) Monitoring and Control in Mexican Commercial Hawthorn Groves.
[So] Source:J Econ Entomol;110(4):1658-1667, 2017 Aug 01.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Few efforts have been made in Mexico to monitor Rhagoletis pomonella (Walsh) (Diptera: Tephritidae) in commercial hawthorn (Crataegus spp.) crops. Therefore, the main objectives of this study were to evaluate infestation levels of R. pomonella in feral and commercial Mexican hawthorn and to assess the efficacy of different trap-lure combinations to monitor the pest. Wild hawthorn was more infested than commercially grown hawthorn at the sample site. No differences among four commercial baits (Biolure, ammonium carbonate, CeraTrap, and Captor + borax) were detected when used in combination with a yellow sticky gel (SG) adherent trap under field conditions. However, liquid lures elicited a slightly higher, although not statistically different, capture. Cage experiments in the laboratory revealed that flies tended to land more often on the upper and middle than lower-bottom part of polyethylene (PET) bottle traps with color circles. Among red, orange, green, and yellow circles attached to a bottle trap, only yellow circles improved fly captures compared with a colorless trap. A PET bottle trap with a red circle over a yellow background captured more flies than a similar trap with yellow circles. An SG adherent yellow panel trap baited with ammonium carbonate was superior to the improved PET bottle trap (red over a yellow background) baited with different liquid proteins, but a higher proportion of females and no differences in fly detection were measured in PET traps baited with protein lures. These trials open the door for future research into development of a conventional nonadherent trap to monitor or control R. pomonella.
[Mh] Termos MeSH primário: Carbonatos/farmacologia
Controle de Insetos/instrumentação
Feromônios/farmacologia
Fototaxia
Tephritidae/fisiologia
[Mh] Termos MeSH secundário: Animais
Cor
Crataegus/crescimento & desenvolvimento
Feminino
Masculino
México
Odorantes/análise
Tephritidae/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Carbonates); 0 (Pheromones); 0 (insect attractants); NJ5VT0FKLJ (ammonium carbonate)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170922
[Lr] Data última revisão:
170922
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170901
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox167


  10 / 5617 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:28722413
[Au] Autor:Buckler JN; Meek T; Banwell MG; Carr PD
[Ad] Endereço:Research School of Chemistry, Institute of Advanced Studies, The Australian National University , Canberra, ACT 2601, Australia.
[Ti] Título:Total Synthesis of the Cyclic Carbonate-Containing Natural Product Aspergillusol B from d-(-)-Tartaric Acid.
[So] Source:J Nat Prod;80(7):2088-2093, 2017 Jul 28.
[Is] ISSN:1520-6025
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A total synthesis of compound 3 from d-(-)-tartaric acid is reported, thereby establishing that the structure, including relative stereochemistry, originally assigned to the cyclic carbonate-containing natural product aspergillusol B is correct.
[Mh] Termos MeSH primário: Carbonatos/química
Tartaratos/química
Tirosina/análogos & derivados
Tirosina/síntese química
[Mh] Termos MeSH secundário: Produtos Biológicos/química
Estrutura Molecular
Ressonância Magnética Nuclear Biomolecular
Estereoisomerismo
Tirosina/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Biological Products); 0 (Carbonates); 0 (Tartrates); 0 (aspergillusol B); 42HK56048U (Tyrosine); W4888I119H (tartaric 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:170720
[St] Status:MEDLINE
[do] DOI:10.1021/acs.jnatprod.7b00303



página 1 de 562 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