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  1 / 2083 MEDLINE  
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[PMID]:28701656
[Au] Autor:Rached MB; Galaverna G; Cirlini M; Boujneh D; Zarrouk M; Guerfel M
[Ad] Endereço:Laboratoire de Biotechnologie de l'Olivier, Centre de Biotechnologie de Borj Cédria.
[Ti] Título:Pedologic Factors Affecting Virgin Olive Oil Quality of "Chemlali" Olive Trees (Olea europaea L.).
[So] Source:J Oleo Sci;66(8):907-915, 2017 Aug 01.
[Is] ISSN:1347-3352
[Cp] País de publicação:Japan
[La] Idioma:eng
[Ab] Resumo:The aim of this study examined the characterization of extra virgin olive oil samples from the main cultivar Chemlali, grown in five olive orchards with different soil type (Sandy, Clay, Stony, Brown, Limestone and Gypsum). Volatile compounds were studied using headspace-solid phase micro-extraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) technics. Moreover, the sterol profile was established using gas chromatography-mass spectrometry. 35 different volatile compounds were identified: alcohols, esters, aldehydes, ketones and hydrocarbons. The chemical composition of the volatile fraction was characterized by the preeminence of 2-hexenal (32.75%) and 1-hexanol (31.88%). Three sterols were identified and characterized. For all olive oil samples, ß-sitosterol (302.25 mg/kg) was the most abundant sterol. Interestingly, our results showed significant qualitative and quantitative differences in the levels of the volatile compounds and sterols from oils obtained from olive trees grown in different soil type.
[Mh] Termos MeSH primário: Qualidade dos Alimentos
Olea
Azeite de Oliva
Solo
Compostos Orgânicos Voláteis/análise
Compostos Orgânicos Voláteis/isolamento & purificação
[Mh] Termos MeSH secundário: Álcoois/isolamento & purificação
Aldeídos/isolamento & purificação
Ésteres/isolamento & purificação
Cromatografia Gasosa-Espectrometria de Massas
Hexobarbital/isolamento & purificação
Hidrocarbonetos/isolamento & purificação
Cetonas/isolamento & purificação
Azeite de Oliva/química
Sitosteroides/análise
Sitosteroides/isolamento & purificação
Microextração em Fase Sólida
Esteróis/análise
Esteróis/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Alcohols); 0 (Aldehydes); 0 (Esters); 0 (Hydrocarbons); 0 (Ketones); 0 (Olive Oil); 0 (Sitosterols); 0 (Soil); 0 (Sterols); 0 (Volatile Organic Compounds); 5LI01C78DD (gamma-sitosterol); AL8Z8K3P6S (Hexobarbital)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171116
[Lr] Data última revisão:
171116
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170714
[St] Status:MEDLINE
[do] DOI:10.5650/jos.ess17066


  2 / 2083 MEDLINE  
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[PMID]:28343031
[Au] Autor:Demir E; Marcos R
[Ad] Endereço:Giresun University, Faculty of Engineering, Department of Genetics and Bioengineering, 28200-Güre, Giresun, Turkey; Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Campus de Bellaterra, Cerdanyola del Vallès, 08193 Spain.
[Ti] Título:Assessing the genotoxic effects of two lipid peroxidation products (4-oxo-2-nonenal and 4-hydroxy-hexenal) in haemocytes and midgut cells of Drosophila melanogaster larvae.
[So] Source:Food Chem Toxicol;105:1-7, 2017 Jul.
[Is] ISSN:1873-6351
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Lipid peroxidation products can induce tissue damage and are implicated in diverse pathological conditions, including aging, atherosclerosis, brain disorders, cancer, lung and various liver disorders. Since in vivo studies produce relevant information, we have selected Drosophila melanogaster as a suitable in vivo model to characterise the potential risks associated to two lipid peroxidation products namely 4-oxo-2-nonenal (4-ONE) and 4-hydroxy-hexenal (4-HHE). Toxicity, intracellular reactive oxygen species production, and genotoxicity were the end-points evaluated. Haemocytes and midgut cells were the evaluated targets. Results showed that both compounds penetrate the intestine of the larvae, affecting midgut cells, and reaching haemocytes. Significant genotoxic effects, as determined by the comet assay, were observed in both selected cell targets in a concentration/time dependent manner. This study highlights the importance of D. melanogaster as a model organism in the study of the different biological effects caused by lipid peroxidation products entering via ingestion. This is the first study reporting genotoxicity data in haemocytes and midgut cells of D. melanogaster larvae for the two selected compounds.
[Mh] Termos MeSH primário: Aldeídos/toxicidade
Drosophila melanogaster/efeitos dos fármacos
Hexobarbital/toxicidade
Peroxidação de Lipídeos
[Mh] Termos MeSH secundário: Animais
Ensaio Cometa
Dano ao DNA/efeitos dos fármacos
Drosophila melanogaster/citologia
Drosophila melanogaster/crescimento & desenvolvimento
Drosophila melanogaster/metabolismo
Hemócitos/efeitos dos fármacos
Hemócitos/metabolismo
Larva/citologia
Larva/efeitos dos fármacos
Larva/metabolismo
Espécies Reativas de Oxigênio/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (4-oxo-2-nonenal); 0 (Aldehydes); 0 (Reactive Oxygen Species); AL8Z8K3P6S (Hexobarbital)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170829
[Lr] Data última revisão:
170829
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170327
[St] Status:MEDLINE


  3 / 2083 MEDLINE  
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[PMID]:28278666
[Au] Autor:Riasat M; Jafari AA; Bahmanzadegan A; Hatami A; Zareiyan F
[Ad] Endereço:a Department of Natural Resources , Researches and Education Center of Agriculture and Natural Resources of Fars Province , Shiraz , Iran.
[Ti] Título:The constituents of essential oil in leaves of Karaj accession of Trigonella foenum graecum.
[So] Source:Nat Prod Res;31(14):1709-1712, 2017 Jul.
[Is] ISSN:1478-6427
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The chemical composition of the essential oils of Karaj accession of Trigonella foenum graecum leaves was detected by hydro-distillation and analysed by gas chromatography (GC-FID) and gas chromatography-mass spectroscopy (GC-MS) apparatuses for first time. Thirty-six compounds representing 95.3% of the total components were identified. The patterns of the main compounds were (2E)-Hexenal (26.61%), n-Hexadecanoic acid (10.14%) and (E)-b-Ionone (7.99%). Other notable constituents were Thymol (4.79%), 6,10,14-trimethyl-2-Pentadecanone (4.59%), Carvacrol (3.40%), (E)-Nerolidol (3.32%) and (2E,6Z)-Nonadienal (3.30%). (2E)-Hexenal was found as the most dominant component in this study.
[Mh] Termos MeSH primário: Óleos Voláteis/química
Folhas de Planta/química
Trigonella/química
[Mh] Termos MeSH secundário: Cromatografia Gasosa-Espectrometria de Massas
Hexobarbital/isolamento & purificação
Norisoprenoides/isolamento & purificação
Ácido Palmítico/isolamento & purificação
Extratos Vegetais/química
Sesquiterpenos/isolamento & purificação
Timol/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Norisoprenoids); 0 (Oils, Volatile); 0 (Plant Extracts); 0 (Sesquiterpenes); 2V16EO95H1 (Palmitic Acid); 3J50XA376E (Thymol); AL8Z8K3P6S (Hexobarbital); QR6IP857S6 (nerolidol)
[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:170311
[St] Status:MEDLINE
[do] DOI:10.1080/14786419.2017.1286484


  4 / 2083 MEDLINE  
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[PMID]:27181454
[Au] Autor:Tseilikman OB; Kozochkin DA; Manukhina EB; Downey HF; Misharina ME; Komelkova MV; Nikitina AA; Golodnii SV; Dodohova MA; Tseilikman VE
[Ad] Endereço:a High Biomedical School , South Ural State University , Chelyabinsk , Russia ;
[Ti] Título:Predicting anxiety responses to halogenated glucocorticoid drugs using the hexobarbital sleep time test.
[So] Source:Stress;19(4):390-4, 2016 07.
[Is] ISSN:1607-8888
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Glucocorticoids (GCs) are used to treat numerous diseases, but their use in limited by adverse side effects. One such effect is occasional increased anxiety. Since the intensity of hepatic microsomal oxidation has been shown to alter responses to GC, we examined the possibility that rats with lower rates of hepatic GC metabolism would have increased anxiety. We hypothesized that the resulting, excessive GC would stimulate brain monoamine oxidase A (MAO-A), which would reduce brain serotonin, and thereby increase anxiety. Hepatic microsomal oxidative intensity was evaluated by the hexobarbital sleep time (HST) test. Results showed that rats with lower rates of hepatic GC metabolism had elevated brain MAO-A activity, reduced brain serotonin, and more anxiety than rats with higher rates of hepatic GC metabolism. We suggest that the HST test, as an integrative test of microsomal oxidation status, should be useful for predicting individual sensitivity to GC and to other drugs metabolized by the hepatic microsomal oxidation system.
[Mh] Termos MeSH primário: Ansiedade/metabolismo
Sistema Enzimático do Citocromo P-450/metabolismo
Glucocorticoides/farmacocinética
Microssomos Hepáticos/metabolismo
[Mh] Termos MeSH secundário: Animais
Encéfalo/efeitos dos fármacos
Encéfalo/metabolismo
Hexobarbital
Fígado/efeitos dos fármacos
Fígado/metabolismo
Masculino
Microssomos Hepáticos/efeitos dos fármacos
Monoaminoxidase/metabolismo
Oxirredução
Ratos
Ratos Sprague-Dawley
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Glucocorticoids); 9035-51-2 (Cytochrome P-450 Enzyme System); AL8Z8K3P6S (Hexobarbital); EC 1.4.3.4 (Monoamine Oxidase)
[Em] Mês de entrada:1705
[Cu] Atualização por classe:170518
[Lr] Data última revisão:
170518
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160517
[St] Status:MEDLINE
[do] DOI:10.1080/10253890.2016.1183118


  5 / 2083 MEDLINE  
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[PMID]:26689857
[Au] Autor:Tseilikman VE; Kozochkin DA; Manukhina EB; Downey HF; Tseilikman OB; Misharina ME; Nikitina AA; Komelkova MV; Lapshin MS; Kondashevskaya MV; Lazuko SS; Kusina OV; Sahabutdinov MV
[Ad] Endereço:South-Ural State Medical University, Chelyabinsk, Russia. vadimed@yandex.ru.
[Ti] Título:Duration of hexobarbital-induced sleep and monoamine oxidase activities in rat brain: Focus on the behavioral activity and on the free-radical oxidation.
[So] Source:Gen Physiol Biophys;35(2):175-83, 2016 Apr.
[Is] ISSN:0231-5882
[Cp] País de publicação:Slovakia
[La] Idioma:eng
[Ab] Resumo:The present study is focused on the relationship between monoamine oxidase (MAO) activity and hepatic content of cytochrome P450 (CYP), which reflects the status of microsomal oxidation. For vital integrative evaluation of hepatic microsomal oxidation in rats, the hexobarbital sleep test was used, and content of CYP was measured in hepatic microsomes. Rats with short hexobarbital sleep time (SHST) had higher content of microsomal CYP than rats with long hexobarbital sleep time (LHST). Whole brain MAO-A and MAO-B activities, serotonin and carbonylated protein levels were higher in SHST than in LHST rats. MAO-A and MAO-B activities were higher in brain cortex of SHST rats; MAO-A activity was higher only in hypothalamus and medulla of LHST. The same brain regions of LHST rats had higher concentrations of carbonylated proteins and lipid peroxidation products than in SHST rats. MAO activity was correlated with microsomal oxidation phenotype. Rats with higher hepatic content of CYP had higher activities of MAO-A and MAO-B in the brain and higher plasma serotonin levels than rats with lower microsomal oxidation. In conclusion, data obtained in this study showed a correlation between MAO activity and microsomal oxidation phenotype.
[Mh] Termos MeSH primário: Comportamento Animal/fisiologia
Encéfalo/enzimologia
Hexobarbital/administração & dosagem
Fígado/enzimologia
Monoaminoxidase/metabolismo
Sono/fisiologia
[Mh] Termos MeSH secundário: Animais
Comportamento Animal/efeitos dos fármacos
Encéfalo/efeitos dos fármacos
Ativação Enzimática/efeitos dos fármacos
Radicais Livres/metabolismo
Hipnóticos e Sedativos/administração & dosagem
Fígado/efeitos dos fármacos
Masculino
Microssomos Hepáticos/efeitos dos fármacos
Microssomos Hepáticos/metabolismo
Oxirredução/efeitos dos fármacos
Ratos
Ratos Sprague-Dawley
Sono/efeitos dos fármacos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Free Radicals); 0 (Hypnotics and Sedatives); AL8Z8K3P6S (Hexobarbital); EC 1.4.3.4 (Monoamine Oxidase)
[Em] Mês de entrada:1607
[Cu] Atualização por classe:160505
[Lr] Data última revisão:
160505
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151223
[St] Status:MEDLINE
[do] DOI:10.4149/gpb_2015039


  6 / 2083 MEDLINE  
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[PMID]:26631406
[Au] Autor:Skopec MM; Kohl KD; Schramm K; Halpert JR; Dearing MD
[Ad] Endereço:Department of Zoology, Weber State University, 1415 Edvalson Dr., Ogden, UT, 84408, USA. micheleskopec@weber.edu.
[Ti] Título:Using the Specialization Framework to Determine Degree of Dietary Specialization in a Herbivorous Woodrat.
[So] Source:J Chem Ecol;41(12):1059-68, 2015 Dec.
[Is] ISSN:1573-1561
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:To be considered a dietary specialist, mammalian herbivores must consume large quantities of a plant species considered "difficult" with respect to nutrient or toxin content, and possess specialized adaptations to deal with plant defensive compounds or low nutritional content. Populations of Neotoma lepida in the Great Basin consume Juniperus osteosperma, a plant heavily defended by terpenes, but a detailed dietary analysis of this population is lacking. Therefore, we investigated the extent of dietary specialization in this species in comparison with the better-studied specialist species, N. stephensi. Microhistological analysis of feces from N. lepida revealed that greater than 90% of their diet in nature was comprised of juniper. In laboratory tolerance trials, N. lepida tolerated a diet of 80% J. osteosperma, similar to that observed for N. stephensi. There was no difference in the abilities of N. lepida and N. stephensi to metabolize hexobarbital, a proxy compound for terpene metabolism. In preference tests of native and non-native juniper species, N. lepida did not exhibit a preference for its native or co-occurring juniper, J. osteosperma, over the non-native species, J. monosperma, whereas N. stephensi preferred its native or co-occurring juniper J. monosperma over non-native J. osteosperma. Behavioral and habitat differences between these woodrat species lead to the categorization of N. stephensi as an obligate juniper specialist with a small range that overlaps that of its preferred food, J. monosperma, and N. lepida as a facultative juniper specialist with a large range, and only a portion of its distribution containing populations that feed extensively on J. osteosperma.
[Mh] Termos MeSH primário: Dieta
Herbivoria
Sigmodontinae/fisiologia
[Mh] Termos MeSH secundário: Animais
Clima Desértico
Ecossistema
Fezes/química
Hexobarbital/metabolismo
Juniperus
Especificidade da Espécie
Utah
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
AL8Z8K3P6S (Hexobarbital)
[Em] Mês de entrada:1609
[Cu] Atualização por classe:171027
[Lr] Data última revisão:
171027
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151204
[St] Status:MEDLINE
[do] DOI:10.1007/s10886-015-0654-y


  7 / 2083 MEDLINE  
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[PMID]:26471403
[Au] Autor:Zhang Y; Zhou Y; Cao S; Li S; Jin S; Zhang S
[Ad] Endereço:a School of Tea and Food Technology, Anhui Agricultural University , Hefei , China.
[Ti] Título:Preparation, release and physicochemical characterisation of ethyl butyrate and hexanal inclusion complexes with ß- and γ-cyclodextrin.
[So] Source:J Microencapsul;32(7):711-8, 2015.
[Is] ISSN:1464-5246
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Complexes of ethyl butyrate and hexanal encapsulated by ß-cyclodextrin (ß-CD) and γ-cyclodextrin (γ-CD) were prepared by coprecipitation, and gas chromatography was used to quantity the flavour compounds in the complexes. The ethyl butyrate-γ-CD complex had the highest inclusion ratio (12.20%) followed by the ethyl butyrate-ß-CD, hexanal-ß-CD and hexanal-γ-CD complexes (11.29, 4.41 and 3.33%, respectively). Release experiments were performed under different relative humidities (RH 93, 75 and 52%) and temperatures (4 and 25 °C). The flavour release behaviours of the complexes were described by the Avrami equation. The rate of flavour release was enhanced with both increasing temperature and RH, although the effect of RH was stronger. Physicochemical characterisation using FT-IR, XRD, DSC and SEM analyses demonstrated that crystalline complexes were formed. Both ß-CD and γ-CD were able to encapsulate ethyl butyrate and hexanal, and lower RH and temperature were more suitable for the storage of these complexes.
[Mh] Termos MeSH primário: Butiratos/química
Aromatizantes/química
Hexobarbital/química
beta-Ciclodextrinas/química
gama-Ciclodextrinas/química
[Mh] Termos MeSH secundário: Composição de Medicamentos
Aromatizantes/administração & dosagem
Indústria Alimentícia
Conservação de Alimentos
Umidade
Cinética
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Butyrates); 0 (Flavoring Agents); 0 (beta-Cyclodextrins); 0 (gamma-Cyclodextrins); AL8Z8K3P6S (Hexobarbital); JV039JZZ3A (betadex); KZJ0BYZ5VA (gamma-cyclodextrin); UFD2LZ005D (ethyl butyrate)
[Em] Mês de entrada:1608
[Cu] Atualização por classe:151016
[Lr] Data última revisão:
151016
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:151017
[St] Status:MEDLINE
[do] DOI:10.3109/02652048.2015.1073391


  8 / 2083 MEDLINE  
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[PMID]:25583340
[Au] Autor:Siroli L; Patrignani F; Serrazanetti DI; Tabanelli G; Montanari C; Gardini F; Lanciotti R
[Ad] Endereço:Department of Agricultural and Food Sciences, Alma Mater Studiorum, University of Bologna, Campus of Food Science, Piazza Goidanich 60, 47521 Cesena, Italy.
[Ti] Título:Lactic acid bacteria and natural antimicrobials to improve the safety and shelf-life of minimally processed sliced apples and lamb's lettuce.
[So] Source:Food Microbiol;47:74-84, 2015 May.
[Is] ISSN:1095-9998
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Outbreaks of food-borne disease associated with the consumption of fresh and minimally processed fruits and vegetables have increased dramatically over the last few years. Traditional chemical sanitizers are unable to completely eradicate or kill the microorganisms on fresh produce. These conditions have stimulated research to alternative methods for increasing food safety. The use of protective cultures, particularly lactic acid bacteria (LAB), has been proposed for minimally processed products. However, the application of bioprotective cultures has been limited at the industrial level. From this perspective, the main aims of this study were to select LAB from minimally processed fruits and vegetables to be used as biocontrol agents and then to evaluate the effects of the selected strains, alone or in combination with natural antimicrobials (2-(E)-hexenal/hexanal, 2-(E)-hexenal/citral for apples and thyme for lamb's lettuce), on the shelf-life and safety characteristics of minimally processed apples and lamb's lettuce. The results indicated that applying the Lactobacillus plantarum strains CIT3 and V7B3 to apples and lettuce, respectively, increased both the safety and shelf-life. Moreover, combining the selected strains with natural antimicrobials produced a further increase in the shelf-life of these products without detrimental effects on the organoleptic qualities.
[Mh] Termos MeSH primário: Bactérias/crescimento & desenvolvimento
Microbiologia de Alimentos
Inocuidade dos Alimentos
Lactobacillus/fisiologia
Alface/microbiologia
Malus/microbiologia
[Mh] Termos MeSH secundário: Anti-Infecciosos/farmacologia
Antibiose
Escherichia coli/crescimento & desenvolvimento
Hexobarbital/farmacologia
Ácido Láctico
Lactobacillus/crescimento & desenvolvimento
Lactobacillus/isolamento & purificação
Lactobacillus casei/crescimento & desenvolvimento
Lactobacillus casei/isolamento & purificação
Lactobacillus casei/fisiologia
Lactobacillus plantarum/isolamento & purificação
Lactobacillus plantarum/fisiologia
Listeria monocytogenes/crescimento & desenvolvimento
Monoterpenos/farmacologia
Salmonella enteritidis/crescimento & desenvolvimento
Thymus (Planta)
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Monoterpenes); 33X04XA5AT (Lactic Acid); AL8Z8K3P6S (Hexobarbital); T7EU0O9VPP (citral)
[Em] Mês de entrada:1509
[Cu] Atualização por classe:151119
[Lr] Data última revisão:
151119
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150114
[St] Status:MEDLINE


  9 / 2083 MEDLINE  
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[PMID]:25764426
[Au] Autor:Savchenko T; Dehesh K
[Ad] Endereço:a Department of Plant Biology; University of California; Davis, CA USA.
[Ti] Título:Drought stress modulates oxylipin signature by eliciting 12-OPDA as a potent regulator of stomatal aperture.
[So] Source:Plant Signal Behav;9(4):e28304, 2014.
[Is] ISSN:1559-2324
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Through evolution, plants have developed a myriad of strategies to adapt to environmental perturbations. Using 3 Arabidopsis ecotypes in conjunction with various transgenic and mutant lines, we provide evidence that wounding and drought differentially alter the metabolic signatures derived from the 2 main competing oxylipin-pathway branches, namely the JA and its precursor 12-OPDA produced by Allene oxide synthase (AOS) branch, and aldehydes and corresponding alcohols generated by Hydroperoxide lyase (HPL) branch. Specifically, we show that wounding induces production of both HPL and AOS-derived metabolites whereas, drought stress only elicits production of hexenal but suppresses hexenol, and further uncouples the conversion of 12-OPDA to JA. This finding led to uncovering of 12-OPDA as a functional convergence point of oxylipin and ABA pathways to control stomatal aperture in plant adaptive responses to drought. In addition, using transgenic lines overexpressing plastidial and extraplastidial HPL enzyme establish the strong interdependence of AOS- and HPL-branch pathways, and the importance of this linkage in tailoring plant adaptive responses to the nature of perturbations.
[Mh] Termos MeSH primário: Arabidopsis/metabolismo
Compostos de Diazônio/metabolismo
Secas
Oxilipinas/metabolismo
Estômatos de Plantas/fisiologia
Piridinas/metabolismo
Estresse Fisiológico
Água
[Mh] Termos MeSH secundário: Ácido Abscísico/metabolismo
Adaptação Fisiológica
Arabidopsis/fisiologia
Ciclopentanos/metabolismo
Ecótipo
Hexobarbital/metabolismo
Doenças das Plantas
Reguladores de Crescimento de Planta/biossíntese
Plantas Geneticamente Modificadas
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL; RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.
[Nm] Nome de substância:
0 (Cyclopentanes); 0 (Diazonium Compounds); 0 (Oxylipins); 0 (Plant Growth Regulators); 0 (Pyridines); 059QF0KO0R (Water); 63681-84-5 (2-(2'-pyridyldithio)benzyldiazoacetate); 6RI5N05OWW (jasmonic acid); 72S9A8J5GW (Abscisic Acid); AL8Z8K3P6S (Hexobarbital)
[Em] Mês de entrada:1510
[Cu] Atualização por classe:161019
[Lr] Data última revisão:
161019
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150313
[St] Status:MEDLINE
[do] DOI:10.4161/psb.28304


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[PMID]:25271849
[Au] Autor:Shalamzari MS; Kahnt A; Vermeylen R; Kleindienst TE; Lewandowski M; Cuyckens F; Maenhaut W; Claeys M
[Ad] Endereço:Department of Pharmaceutical Sciences, University of Antwerp , BE-2610 Antwerp, Belgium.
[Ti] Título:Characterization of polar organosulfates in secondary organic aerosol from the green leaf volatile 3-Z-hexenal.
[So] Source:Environ Sci Technol;48(21):12671-8, 2014 Nov 04.
[Is] ISSN:1520-5851
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Evidence is provided that the green leaf volatile 3-Z-hexenal serves as a precursor for biogenic secondary organic aerosol through the formation of polar organosulfates (OSs) with molecular weight (MW) 226. The MW 226 C6-OSs were chemically elucidated, along with structurally similar MW 212 C5-OSs, whose biogenic precursor is likely related to 3-Z-hexenal but still remains unknown. The MW 226 and 212 OSs have a substantial abundance in ambient fine aerosol from K-puszta, Hungary, which is comparable to that of the isoprene-related MW 216 OSs, known to be formed through sulfation of C5-epoxydiols, second-generation gas-phase photooxidation products of isoprene. Using detailed interpretation of negative-ion electrospray ionization mass spectral data, the MW 226 compounds are assigned to isomeric sulfate esters of 3,4-dihydroxyhex-5-enoic acid with the sulfate group located at the C-3 or C-4 position. Two MW 212 compounds present in ambient fine aerosol are attributed to isomeric sulfate esters of 2,3-dihydroxypent-4-enoic acid, of which two are sulfated at C-3 and one is sulfated at C-2. The formation of the MW 226 OSs is tentatively explained through photooxidation of 3-Z-hexenal in the gas phase, resulting in an alkoxy radical, followed by a rearrangement and subsequent sulfation of the epoxy group in the particle phase.
[Mh] Termos MeSH primário: Aerossóis/química
Hexobarbital/análise
Folhas de Planta/química
Sulfatos/química
Compostos Orgânicos Voláteis/análise
[Mh] Termos MeSH secundário: Atmosfera/química
Cromatografia Líquida
Hexobarbital/química
Hungria
Espectrometria de Massas
Peso Molecular
[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 (Aerosols); 0 (Sulfates); 0 (Volatile Organic Compounds); AL8Z8K3P6S (Hexobarbital)
[Em] Mês de entrada:1511
[Cu] Atualização por classe:141104
[Lr] Data última revisão:
141104
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:141002
[St] Status:MEDLINE
[do] DOI:10.1021/es503226b



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