Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.328.750.625 [Categoria DeCS]
Referências encontradas : 9 [refinar]
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  1 / 9 MEDLINE  
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[PMID]:28078623
[Au] Autor:Cha DH; Olsson SB; Yee WL; Goughnour RB; Hood GR; Mattsson M; Schwarz D; Feder JL; Linn CE
[Ad] Endereço:Department of Entomology, NYS Agricultural Experiment Station, Cornell University, Geneva, NY, 14456, USA.
[Ti] Título:Identification of Host Fruit Volatiles from Snowberry (Symphoricarpos albus), Attractive to Rhagoletis zephyria Flies from the Western United States.
[So] Source:J Chem Ecol;43(2):188-197, 2017 Feb.
[Is] ISSN:1573-1561
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A mixture of behaviorally active volatiles was identified from the fruit of snowberry, Symphoricarpos albus laevigatus, for Rhagoletis zephyria flies reared from snowberry fruit. A nine-component blend containing 3-methylbutan-1-ol (3%), dimethyl trisulfide (1%), 1-octen-3-ol (40%), myrcene (8%), nonanal (9%), linalool (13%), (3E)-4,8-dimethyl-1,3,7-nonatriene (DMNT, 6%), decanal (15%), and ß-caryophyllene (5%) was identified that gave consistent electroantennogram activity and was behaviorally active in flight tunnel tests. In other flight tunnel assays, snowberry flies from two sites in Washington state, USA, displayed significantly greater levels of upwind oriented flight to sources with the snowberry volatile blend compared with previously identified volatile blends from domestic apple (Malus domestica) and downy hawthorn (Crataegus mollis) fruit from the eastern USA, and domestic apple, black hawthorn (C. douglasii) and ornamental hawthorn (C. monogyna) from Washington state. Selected subtraction assays showed that whereas removal of DMNT or 1-octen-3-ol significantly reduced the level of upwind flight, removal of myrcene and ß-caryophyllene, or dimethyl trisulfide alone did not significantly affect the proportion of upwind flights. Our findings add to previous studies showing that populations of Rhagoletis flies infesting different host fruit are attracted to unique mixtures of volatile compounds specific to their respective host plants. Taken together, the results support the hypothesis that differences among flies in their behavioral responses to host fruit odors represent key adaptations involved in sympatric host plant shifts, contributing to host specific mating and generating prezygotic reproductive isolation among members of the R. pomonella sibling species complex.
[Mh] Termos MeSH primário: Comportamento Animal/efeitos dos fármacos
Controle de Insetos/métodos
Symphoricarpos/metabolismo
Tephritidae/fisiologia
Compostos Orgânicos Voláteis/farmacologia
[Mh] Termos MeSH secundário: Animais
Ecossistema
Voo Animal/efeitos dos fármacos
Frutas/parasitologia
Interações Hospedeiro-Parasita
Modelos Teóricos
Symphoricarpos/parasitologia
Compostos Orgânicos Voláteis/isolamento & purificação
Compostos Orgânicos Voláteis/metabolismo
Washington
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Volatile Organic Compounds)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:171027
[Lr] Data última revisão:
171027
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170113
[St] Status:MEDLINE
[do] DOI:10.1007/s10886-016-0814-8


  2 / 9 MEDLINE  
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[PMID]:28028019
[Au] Autor:Smith DD; Sperry JS; Adler FR
[Ad] Endereço:Department of Biology, University of Utah, Salt Lake City, UT 84112, USA ddsmith3@wisc.edu.
[Ti] Título:Convergence in leaf size versus twig leaf area scaling: do plants optimize leaf area partitioning?
[So] Source:Ann Bot;119(3):447-456, 2017 Feb.
[Is] ISSN:1095-8290
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND AND AIMS: Corner's rule states that thicker twigs bear larger leaves. The exact nature of this relationship and why it should occur has been the subject of numerous studies. It is obvious that thicker twigs should support greater total leaf area ([Formula: see text]) for hydraulical and mechanical reasons. But it is not obvious why mean leaf size ([Formula: see text]) should scale positively with [Formula: see text] We asked what this scaling relationship is within species and how variable it is across species. We then developed a model to explain why these relationships exist. METHODS: To minimize potential sources of variability, we compared twig properties from six co-occurring and functionally similar species: Acer grandidentatum, Amelanchier alnifolia, Betula occidentalis, Cornus sericea, Populus fremontii and Symphoricarpos oreophilus We modelled the economics of leaf display, weighing the benefit from light absorption against the cost of leaf tissue, to predict the optimal [Formula: see text] combinations under different canopy openings. KEY RESULTS: We observed a common [Formula: see text] by [Formula: see text] exponent of 0.6, meaning that [Formula: see text]and leaf number on twigs increased in a specific coordination. Common scaling exponents were not supported for relationships between any other measured twig properties. The model consistently predicted positive [Formula: see text] by [Formula: see text] scaling when twigs optimally filled canopy openings. The observed 0·6 exponent was predicted when self-shading decreased with larger canopy opening. CONCLUSIONS: Our results suggest Corner's rule may be better understood when recast as positive [Formula: see text] by [Formula: see text] scaling. Our model provides a tentative explanation of observed [Formula: see text] by [Formula: see text] scaling and suggests different scaling may exist in different environments.
[Mh] Termos MeSH primário: Folhas de Planta/anatomia & histologia
Caules de Planta/anatomia & histologia
[Mh] Termos MeSH secundário: Acer/anatomia & histologia
Acer/fisiologia
Betula/anatomia & histologia
Betula/fisiologia
Fenômenos Biomecânicos
Cornus/anatomia & histologia
Cornus/fisiologia
Modelos Biológicos
Folhas de Planta/fisiologia
Caules de Planta/fisiologia
Populus/anatomia & histologia
Populus/fisiologia
Rosaceae/anatomia & histologia
Rosaceae/fisiologia
Symphoricarpos/anatomia & histologia
Symphoricarpos/fisiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170822
[Lr] Data última revisão:
170822
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161229
[St] Status:MEDLINE
[do] DOI:10.1093/aob/mcw231


  3 / 9 MEDLINE  
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[PMID]:24331621
[Au] Autor:Green E; Almskaar K; Sim SB; Arcella T; Yee WL; Feder JL; Schwarz D
[Ad] Endereço:Department of Biology, Western Washington University, 516 High St., MS 9160, Bellingham, WA 98225, USA.
[Ti] Título:Molecular species identification of cryptic apple and snowberry maggots (Diptera: Tephritidae) in western and central Washington.
[So] Source:Environ Entomol;42(5):1100-9, 2013 Oct.
[Is] ISSN:1938-2936
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In Washington state, identification of the quarantine apple pest Rhagoletis pomonella (Walsh) is complicated by the presence of the cryptic species Rhagoletis zephyria Snow (Diptera: Tephritidae). Distinguishing the two flies is important because there is a zero tolerance policy for R. pomonella in apple production for export. Here, we attempt to distinguish the two species by scoring R. pomonella and R. zephyria populations from western and south-central Washington for a set of 11 nuclear markers, including four single nucleotide polymorphisms (SNPs) developed for rapid and inexpensive genotyping using Taqman real-time quantitative-polymerase chain reaction. We show that the four SNPs may be adequate in most cases for distinguishing whether a fly originated from apple or black hawthorn (the two major host plants for R. pomonella representing an economic risk) versus snowberry (the major host for R. zephyria, and not a commercial threat). However, directional introgression of R. zephyria alleles into R. pomonella can complicate the identification of flies of mixed ancestry based only on the four SNPs. Moreover, this problem is more acute in the sensitive apple-growing regions of central Washington where our results imply hybridization is common. Consequently, application of the four SNP quantitative-polymerase chain reaction assay can immediately assist ongoing apple maggot monitoring, while the development of additional genetic markers through next-generation sequencing would be valuable for increasing confidence in species identification and for assessing the threat posed by hybridization as R. pomonella further spreads into the more arid apple-growing regions of central Washington.
[Mh] Termos MeSH primário: Hibridização Genética
Polimorfismo de Nucleotídeo Único
Tephritidae/classificação
Tephritidae/genética
[Mh] Termos MeSH secundário: Animais
DNA Complementar/genética
Controle de Insetos
Malus/crescimento & desenvolvimento
Reação em Cadeia da Polimerase em Tempo Real
Symphoricarpos/crescimento & desenvolvimento
Washington
[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 (DNA, Complementary)
[Em] Mês de entrada:1508
[Cu] Atualização por classe:131216
[Lr] Data última revisão:
131216
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:131217
[St] Status:MEDLINE
[do] DOI:10.1603/EN13038


  4 / 9 MEDLINE  
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[PMID]:22673058
[Au] Autor:Akar ST; Arslan D; Alp T
[Ad] Endereço:Department of Chemistry, Faculty of Arts and Science, Eskisehir Osmangazi University, Turkey. stunali@ogu.edu.tr
[Ti] Título:Ammonium pyrrolidine dithiocarbamate anchored Symphoricarpus albus biomass for lead(II) removal: batch and column biosorption study.
[So] Source:J Hazard Mater;227-228:107-17, 2012 Aug 15.
[Is] ISSN:1873-3336
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:The biosorption properties of APDC modified S. albus were tested in batch and column conditions. Effective experimental parameters such as pH, biosorbent dosage, contact time, temperature, initial lead(II) ion concentration, flow rate and bed height were investigated. The biosorption capacity of modified biosorbent was at maximum when lead(II) solution pH and biosorbent dosage were 5.5 and 2.0 g L(-1), respectively. The biosorption equilibrium was established in 20 min. Langmuir isotherm fitted well to the equilibrium data and kinetics is found to fit pseudo-second-order model. Increase in ionic strength of lead(II) solutions caused a slight decrease in the biosorption yield of APDC-modified biosorbent. Co-ions affected the biosorption performance of modified biomass up to maximum 20.81% reduction. Column biosorption of lead(II) showed higher biosorption yields at lower flow rates. Required time of breakthrough point was found to be 200 min. The recommended mechanism was found to depend mainly on electrostatic interaction, ion-exchange and complex formation. The ion-exchange mechanism for lead(II) biosorption onto the modified biosorbent is verified from the ionic strength effect and EDX analysis. Carbonyl, phosphate and CN groups on the modified surface of S. albus were found to responsible for complexation with lead(II).
[Mh] Termos MeSH primário: Chumbo/química
Pirrolidinas/química
Symphoricarpos
Tiocarbamatos/química
Poluentes Químicos da Água/química
[Mh] Termos MeSH secundário: Adsorção
Biomassa
Concentração de Íons de Hidrogênio
Microscopia Eletrônica de Varredura
Concentração Osmolar
Symphoricarpos/ultraestrutura
Temperatura Ambiente
Fatores de Tempo
Eliminação de Resíduos Líquidos/métodos
Purificação da Água/métodos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Pyrrolidines); 0 (Thiocarbamates); 0 (Water Pollutants, Chemical); 25769-03-3 (pyrrolidine dithiocarbamic acid); 2P299V784P (Lead)
[Em] Mês de entrada:1210
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:120608
[St] Status:MEDLINE
[do] DOI:10.1016/j.jhazmat.2012.05.020


  5 / 9 MEDLINE  
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[PMID]:22006283
[Au] Autor:Orrock JL; Christopher CC; Dutra HP
[Ad] Endereço:Department of Zoology, University of Wisconsin, Madison, WI, 53706, USA. jorrock@wisc.edu
[Ti] Título:Seed bank survival of an invasive species, but not of two native species, declines with invasion.
[So] Source:Oecologia;168(4):1103-10, 2012 Apr.
[Is] ISSN:1432-1939
[Cp] País de publicação:Germany
[La] Idioma:eng
[Ab] Resumo:Soil-borne seed pathogens may play an important role in either hindering or facilitating the spread of invasive exotic plants. We examined whether the invasive shrub Lonicera maackii (Caprifoliaceae) affected fungi-mediated mortality of conspecific and native shrub seeds in a deciduous forest in eastern Missouri. Using a combination of L. maackii removal and fungicide treatments, we found no effect of L. maackii invasion on seed viability of the native Symphoricarpos orbiculatus (Caprifoliaceae) or Cornus drummondii (Cornaceae). In contrast, fungi were significant agents of L. maackii seed mortality in invaded habitats. Losses of L. maackii to soil fungi were also significant in invaded habitats where L. maackii had been removed, although the magnitude of the effect of fungi was lower, suggesting that changes in soil chemistry or microhabitat caused by L. maackii were responsible for affecting fungal seed pathogens. Our work suggests that apparent competition via soil pathogens is not an important factor contributing to impacts of L. maackii on native shrubs. Rather, we found that fungal seed pathogens have density-dependent effects on L. maackii seed survival. Therefore, while fungal pathogens may provide little biotic resistance to early invasion by L. maackii, our study illustrates that more work is needed to understand how changes in fungal pathogens during the course of an invasion contribute to the potential for restoration of invaded systems. More generally, our study suggests that increased rates of fungal pathogen attack may be realized by invasive plants, such as L. maackii, that change the chemical or physical environment of the habitats they invade.
[Mh] Termos MeSH primário: Ecossistema
Fungos/fisiologia
Espécies Introduzidas
Lonicera/crescimento & desenvolvimento
Sementes/fisiologia
Microbiologia do Solo
Symphoricarpos/crescimento & desenvolvimento
[Mh] Termos MeSH secundário: Missouri
Dinâmica Populacional
Sementes/microbiologia
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Em] Mês de entrada:1207
[Cu] Atualização por classe:171010
[Lr] Data última revisão:
171010
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:111019
[St] Status:MEDLINE
[do] DOI:10.1007/s00442-011-2159-x


  6 / 9 MEDLINE  
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[PMID]:19004546
[Au] Autor:Akar ST; Gorgulu A; Anilan B; Kaynak Z; Akar T
[Ad] Endereço:Department of Chemistry, Faculty of Arts and Science, Eskisehir Osmangazi University, Eskisehir, Turkey. stunali@ogu.edu.tr
[Ti] Título:Investigation of the biosorption characteristics of lead(II) ions onto Symphoricarpus albus: Batch and dynamic flow studies.
[So] Source:J Hazard Mater;165(1-3):126-33, 2009 Jun 15.
[Is] ISSN:1873-3336
[Cp] País de publicação:Netherlands
[La] Idioma:eng
[Ab] Resumo:This work reports the results of the study for lead(II) binding by the natural and low cost biosorbent Symphoricarpus albus. Batch biosorption experiments demonstrated the high rate of lead(II) biosorption and the kinetic data were successfully described by a pseudo-second-order model. Biosorption of lead(II) onto S. albus biomass showed a pH-dependent profile and lead(II) biosorption was higher when pH or temperature was increased. As much as 88.5% removal of lead(II) is also possible in the multi-metal mixture. The Langmuir isotherm better fits the biosorption data and the monolayer biosorption capacity was 3.00 x 10(-4) mol g(-1) at 45 C. The biomass was characterized with FTIR and SEM analysis. Desorption studies revealed that the natural biomass could be regenerated using 10mM HNO(3) solution with about 99% recovery and reused in five biosorption-desorption cycles. Therefore, S. albus which is cheap, highly selective and easily regenerable seems to be a promising substrate to entrap lead(II) ions in aqueous solutions.
[Mh] Termos MeSH primário: Biodegradação Ambiental
Chumbo/isolamento & purificação
Symphoricarpos/metabolismo
Poluentes Químicos da Água/isolamento & purificação
[Mh] Termos MeSH secundário: Adsorção
Biomassa
Concentração de Íons de Hidrogênio
Cinética
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Water Pollutants, Chemical); 2P299V784P (Lead)
[Em] Mês de entrada:0907
[Cu] Atualização por classe:131121
[Lr] Data última revisão:
131121
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:081114
[St] Status:MEDLINE
[do] DOI:10.1016/j.jhazmat.2008.09.089


  7 / 9 MEDLINE  
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[PMID]:15311846
[Au] Autor:Kim HK; Choi YH; Luijendijk TJ; Rocha RA; Verpoorte R
[Ad] Endereço:Division of Pharmacognosy, Section Metabolomics, Institute of Biology, Leiden University, Leiden, The Netherlands.
[Ti] Título:Comparison of extraction methods for secologanin and the quantitative analysis of secologanin from Symphoricarpos albus using 1H-NMR.
[So] Source:Phytochem Anal;15(4):257-61, 2004 Jul-Aug.
[Is] ISSN:0958-0344
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:In order to develop an efficient large-scale extraction of secologanin from Symphoricarpos albus, different methods have been compared. Ultrasonication with organic solvents and water, microwave-assisted extraction and hot water extraction methods were evaluated for their efficiencies. Among the methods tested, ultrasonication with methanol showed the highest yield of secologanin (3.35 +/- 0.24 mg/g fresh weight). For reliable quantification of secologanin a 1H-NMR method was developed. The experiment was performed by the analysis of the integral of the signal of H-9, which was well separated in the range delta 7.4-7.5 in the 1H-NMR spectrum. The quantity of the compound was calculated from the relative ratio of intensity of the target peak to the known amount of internal standard, 200 microg of gallic acid. This method allows rapid and simple quantification of secologanin in 5 min without any pre-purification steps.
[Mh] Termos MeSH primário: Iridoides/isolamento & purificação
Symphoricarpos/química
[Mh] Termos MeSH secundário: Técnicas de Química Analítica/métodos
Frutas/química
Glucosídeos Iridoides
Iridoides/química
Micro-Ondas
Ressonância Magnética Nuclear Biomolecular/métodos
Sonicação
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Iridoid Glucosides); 0 (Iridoids); 19351-63-4 (secologanin)
[Em] Mês de entrada:0409
[Cu] Atualização por classe:101118
[Lr] Data última revisão:
101118
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:040818
[St] Status:MEDLINE


  8 / 9 MEDLINE  
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[PMID]:15259860
[Au] Autor:Szaufer-Hajdrych M; Goslinska O
[Ad] Endereço:Department of Pharmacognosy and Department of Bacteriology, University of Medical Sciences, 10 Sieroca Str., 61-771 Poznan, Poland.
[Ti] Título:The quantitative determination of phenolic acids and antimicrobial activity of Symphoricarpos albus (L.) Blake.
[So] Source:Acta Pol Pharm;61(1):69-74, 2004 Jan-Feb.
[Is] ISSN:0001-6837
[Cp] País de publicação:Poland
[La] Idioma:eng
[Ab] Resumo:The content of phenolic acids was determined in the extracts and fractions from leaves, flowers and fruits of Symphoricarpos albus (L.) Blake (Caprifoliaceae) by the Arnov's method. Antimicrobial activity of all extracts against Gram-positive anti Gram-negative microorganisms has been tested.
[Mh] Termos MeSH primário: Anti-Infecciosos/farmacologia
Hidroxibenzoatos/análise
Symphoricarpos/química
[Mh] Termos MeSH secundário: Bactérias/efeitos dos fármacos
Fungos/efeitos dos fármacos
Indicadores e Reagentes
Testes de Sensibilidade Microbiana
Extratos Vegetais/química
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Hydroxybenzoates); 0 (Indicators and Reagents); 0 (Plant Extracts); 29656-58-4 (phenolic acid)
[Em] Mês de entrada:0409
[Cu] Atualização por classe:121115
[Lr] Data última revisão:
121115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:040721
[St] Status:MEDLINE


  9 / 9 MEDLINE  
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[PMID]:12848374
[Au] Autor:Szaufer-Hajdrych M; Zgórka G
[Ad] Endereço:Department of Pharmacognosy, K. Marcinkowski University of Medical Sciences, 10 Sieroca Str., 61-771 Poznan, Poland.
[Ti] Título:Phenolic acids from Symphoricarpos albus (L.) Blake (Caprifoliaceae).
[So] Source:Acta Pol Pharm;60(1):91-5, 2003 Jan-Feb.
[Is] ISSN:0001-6837
[Cp] País de publicação:Poland
[La] Idioma:eng
[Ab] Resumo:The leaves, flowers and fruits of Symphoricarpos albus (L.) Blake (Caprifoliaceae) were analysed for the presence of phenolic acids. Eleven free and liberated by hydrolysis phenolic acids were identified by TLC, HPLC and spectral (UV) methods. Moreover, the HPLC method was applied for the quantitative determination of phenolic acids in the analysed fractions.
[Mh] Termos MeSH primário: Hidroxibenzoatos/química
Symphoricarpos/química
[Mh] Termos MeSH secundário: Cromatografia Líquida de Alta Pressão
Cromatografia em Camada Delgada
Flores/química
Hidroxibenzoatos/isolamento & purificação
Extratos Vegetais/análise
Folhas de Planta/química
Solventes
Espectrofotometria Ultravioleta
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Hydroxybenzoates); 0 (Plant Extracts); 0 (Solvents); 29656-58-4 (phenolic acid)
[Em] Mês de entrada:0308
[Cu] Atualização por classe:121115
[Lr] Data última revisão:
121115
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:030710
[St] Status:MEDLINE



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