Base de dados : MEDLINE
Pesquisa : B01.650.940.800.575.912.250.093.615 [Categoria DeCS]
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[PMID]:29352281
[Au] Autor:Al-Harrasi I; Al-Yahyai R; Yaish MW
[Ad] Endereço:Department of Biology, College of Science, Sultan Qaboos University, Muscat, Oman.
[Ti] Título:Differential DNA methylation and transcription profiles in date palm roots exposed to salinity.
[So] Source:PLoS One;13(1):e0191492, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:As a salt-adaptive plant, the date palm (Phoenix dactylifera L.) requires a suitable mechanism to adapt to the stress of saline soils. There is growing evidence that DNA methylation plays an important role in regulating gene expression in response to abiotic stresses, including salinity. Thus, the present study sought to examine the differential methylation status that occurs in the date palm genome when plants are exposed to salinity, and to identify salinity responsive genes that are regulated by DNA methylation. To achieve these, whole-genome bisulfite sequencing (WGBS) was employed and mRNA was sequenced from salinity-treated and untreated roots. The WGBS analysis included 324,987,795 and 317,056,091 total reads of the control and the salinity-treated samples, respectively. The analysis covered about 81% of the total genomic DNA with about 40% of mapping efficiency of the sequenced reads and an average read depth of 17-fold coverage per DNA strand, and with a bisulfite conversion rate of around 99%. The level of methylation within the differentially methylated regions (DMRs) was significantly (p < 0.05, FDR ≤ 0.05) increased in response to salinity specifically at the mCHG and mCHH sequence contexts. Consistently, the mass spectrometry and the enzyme-linked immunosorbent assay (ELISA) showed that there was a significant (p < 0.05) increase in the global DNA methylation in response to salinity. mRNA sequencing revealed the presence of 6,405 differentially regulated genes with a significant value (p < 0.001, FDR ≤ 0.05) in response to salinity. Integration of high-resolution methylome and transcriptome analyses revealed a negative correlation between mCG methylation located within the promoters and the gene expression, while a positive correlation was noticed between mCHG/mCHH methylation rations and gene expression specifically when plants grew under control conditions. Therefore, the methylome and transcriptome relationships vary based on the methylated sequence context, the methylated region within the gene, the protein-coding ability of the gene, and the salinity treatment. These results provide insights into interplay among DNA methylation and gene expression, and highlight the effect of salinity on the nature of this relationship, which may involve other genetic and epigenetic players under salt stress conditions. The results obtained from this project provide the first draft map of the differential methylome and transcriptome of date palm when exposed to an abiotic stress.
[Mh] Termos MeSH primário: Metilação de DNA
Phoeniceae/genética
Phoeniceae/metabolismo
Salinidade
[Mh] Termos MeSH secundário: Adaptação Fisiológica/genética
DNA de Plantas/genética
DNA de Plantas/metabolismo
Epigênese Genética
Perfilação da Expressão Gênica
Genes de Plantas
Anotação de Sequência Molecular
Phoeniceae/crescimento & desenvolvimento
Fotossíntese
Raízes de Plantas/genética
Raízes de Plantas/crescimento & desenvolvimento
Raízes de Plantas/metabolismo
Regiões Promotoras Genéticas
RNA Mensageiro/genética
RNA Mensageiro/metabolismo
RNA de Plantas/genética
RNA de Plantas/metabolismo
Sequenciamento Completo do Genoma
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, N.I.H., EXTRAMURAL
[Nm] Nome de substância:
0 (DNA, Plant); 0 (RNA, Messenger); 0 (RNA, Plant)
[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:180121
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0191492


  2 / 178 MEDLINE  
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[PMID]:29272851
[Au] Autor:Zaheer Z
[Ad] Endereço:Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21413, Saudi Arabia. Electronic address: zzkhan@kau.edu.sa.
[Ti] Título:Biogenic synthesis, optical, catalytic, and in vitro antimicrobial potential of Ag-nanoparticles prepared using Palm date fruit extract.
[So] Source:J Photochem Photobiol B;178:584-592, 2018 Jan.
[Is] ISSN:1873-2682
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Silver nanoparticles (AgNPs) have been synthesized via green route using an aqueous extract of Palm date fruit pericarp extract. The appearance of the yellow color and the surface resonance plasmon (SRP) band at around 400-450nm in UV-Visible spectroscopy initially reveals the formation of AgNPs. The particle size, crystalline nature, and size distribution was confirmed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), selected area electron diffraction (SAED) ring patterns, energy dispersive X-ray spectroscopy (EDX), dynamic light scattering (DLS) techniques. The particles size ranged ca. 3nm to 30nm and are spherical in shape. The microbial activity of biogenic AgNPs was tested on clinical multiple drug resistance Staphylococcus aureus, Escherichia coli and Candida albicans reference strain. Zones of inhibition growth increases with [AgNPs]. The results suggest that the particle tested in this study certainly mediate the inhibition of bacterial and fungus growth. To overcome the serious problems related to environment like discharge of hazardous chemicals to water bodies, AgNPs have been found to be very important in the catalytic degradation of 4-nitrophenol. The rate of degradation strongly depends on the sun light exposure. Based on the chemical and kinetic studies, an attempt has been made to elucidate the mechanism of AgNPs formation.
[Mh] Termos MeSH primário: Anti-Infecciosos/síntese química
Nanopartículas Metálicas/química
Phoeniceae/química
Prata/química
[Mh] Termos MeSH secundário: Anti-Infecciosos/química
Anti-Infecciosos/farmacologia
Candida albicans/efeitos dos fármacos
Catálise
Difusão Dinâmica da Luz
Escherichia coli/efeitos dos fármacos
Frutas/química
Frutas/metabolismo
Química Verde
Nanopartículas Metálicas/toxicidade
Microscopia Eletrônica de Varredura
Nitrofenóis/química
Tamanho da Partícula
Phoeniceae/metabolismo
Fotólise/efeitos da radiação
Extratos Vegetais/química
Espectrometria por Raios X
Espectrofotometria
Staphylococcus aureus/efeitos dos fármacos
Luz Solar
Ressonância de Plasmônio de Superfície
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Infective Agents); 0 (Nitrophenols); 0 (Plant Extracts); 3M4G523W1G (Silver); Y92ZL45L4R (4-nitrophenol)
[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:171223
[St] Status:MEDLINE


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[PMID]:29293579
[Au] Autor:Alfaro-Viquez E; Roling BF; Krueger CG; Rainey CJ; Reed JD; Ricketts ML
[Ad] Endereço:Reed Research Group, Department of Animal Sciences, University of Wisconsin-Madison, Madison, WI, United States of America.
[Ti] Título:An extract from date palm fruit (Phoenix dactylifera) acts as a co-agonist ligand for the nuclear receptor FXR and differentially modulates FXR target-gene expression in vitro.
[So] Source:PLoS One;13(1):e0190210, 2018.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Date palm fruit (Phoenix dactylifera) consumption reduces serum triglyceride levels in human subjects. The objective of this study was to prepare an extract from dates and determine whether it acts as a ligand for the farnesoid x receptor (FXR), a nuclear receptor important for maintaining triglyceride and cholesterol homeostasis. Freeze-dried extracts were isolated from California-grown dates (Deglet Noor and Medjool) from the 2014 and 2015 harvests, by means of liquid extraction and solid phase separation. Each date palm extract (DPE) was characterized via HPLC and MALDI-TOF mass spectrometry, and the procyanidin content was qualitatively determined. Extracts were tested to determine their ability to modulate nuclear receptor-mediated transactivation using transient transfection. The effect of DPE on FXR-target genes regulating bile acid absorption and transport was then assessed in vitro, in Caco-2 cells. Characterization reveals that DPE is a rich source of polyphenols including hydroxycinnamic acids, proanthocyanidins, and lipohilic polyphenols, and comprises 13% proanthocyanidins. Transactivation results show that DPE acts as a co-agonist ligand for both mouse and human FXR, wherein it activates bile acid-bound FXR greater than that seen with bile acid alone. Additionally, DPE alone activated a peroxisome proliferator activated receptor alpha (PPARα) chimera in a dose-dependent manner. Consistent with DPE as a co-agonist ligand for FXR, studies in Caco-2 cells reveal that co-incubation with bile acid, dose-dependently enhances the expression of fibroblast growth factor 19 (FGF19), compared to treatment with bile acid alone. In contrast, DPE inhibited bile acid-induced expression of ileal bile acid binding protein (IBABP). Our results demonstrate that DPE acts as a potent co-agonist ligand for FXR, and that it differentially regulates FXR-target gene expression in vitro in human intestinal cells. This study provides novel insight into a potential mechanism by which dates may exert a hypotriglyceridemic effect via FXR and modulation of bile acid homeostasis.
[Mh] Termos MeSH primário: Phoeniceae/química
Extratos Vegetais/farmacologia
Receptores Citoplasmáticos e Nucleares/agonistas
[Mh] Termos MeSH secundário: Células CACO-2
Seres Humanos
Técnicas In Vitro
Ligantes
Receptores Citoplasmáticos e Nucleares/genética
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Ligands); 0 (Plant Extracts); 0 (Receptors, Cytoplasmic and Nuclear); 0 (farnesoid X-activated receptor)
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180206
[Lr] Data última revisão:
180206
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180103
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0190210


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[PMID]:28910368
[Au] Autor:Aldawsari A; Khan MA; Hameed BH; Alqadami AA; Siddiqui MR; Alothman ZA; Ahmed AYBH
[Ad] Endereço:Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia.
[Ti] Título:Mercerized mesoporous date pit activated carbon-A novel adsorbent to sequester potentially toxic divalent heavy metals from water.
[So] Source:PLoS One;12(9):e0184493, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:A substantive approach converting waste date pits to mercerized mesoporous date pit activated carbon (DPAC) and utilizing it in the removal of Cd(II), Cu(II), Pb(II), and Zn(II) was reported. In general, rapid heavy metals adsorption kinetics for Co range: 25-100 mg/L was observed, accomplishing 77-97% adsorption within 15 min, finally, attaining equilibrium in 360 min. Linear and non-linear isotherm studies revealed Langmuir model applicability for Cd(II) and Pb(II) adsorption, while Freundlich model was fitted to Zn(II) and Cu(II) adsorption. Maximum monolayer adsorption capacities (qm) for Cd(II), Pb(II), Cu(II), and Zn(II) obtained by non-linear isotherm model at 298 K were 212.1, 133.5, 194.4, and 111 mg/g, respectively. Kinetics modeling parameters showed the applicability of pseudo-second-order model. The activation energy (Ea) magnitude revealed physical nature of adsorption. Maximum elution of Cu(II) (81.6%), Zn(II) (70.1%), Pb(II) (96%), and Cd(II) (78.2%) were observed with 0.1 M HCl. Thermogravimetric analysis of DPAC showed a total weight loss (in two-stages) of 28.3%. Infra-red spectral analysis showed the presence of carboxyl and hydroxyl groups over DPAC surface. The peaks at 820, 825, 845 and 885 cm-1 attributed to Zn-O, Pb-O, Cd-O, and Cu-O appeared on heavy metals saturated DPAC, confirmed their binding on DPAC during the adsorption.
[Mh] Termos MeSH primário: Metais Pesados/isolamento & purificação
Phoeniceae
Poluentes Químicos da Água/isolamento & purificação
Purificação da Água/instrumentação
[Mh] Termos MeSH secundário: Adsorção
Cádmio/isolamento & purificação
Carbono/química
Cobre/isolamento & purificação
Concentração de Íons de Hidrogênio
Cinética
Chumbo/isolamento & purificação
Termogravimetria
Zinco/isolamento & purificação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Metals, Heavy); 0 (Water Pollutants, Chemical); 00BH33GNGH (Cadmium); 2P299V784P (Lead); 7440-44-0 (Carbon); 789U1901C5 (Copper); J41CSQ7QDS (Zinc)
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171012
[Lr] Data última revisão:
171012
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170915
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0184493


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[PMID]:28855019
[Au] Autor:Hachani R; Sabir H; Sana N; Zohra KF; Nesrine NM
[Ti] Título:Performance Study of a Low-cost Adsorbent-Raw Date Pits-for Removal of Azo Dye in Aqueous Solution.
[So] Source:Water Environ Res;89(9):827-839, 2017 Sep 01.
[Is] ISSN:1061-4303
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The feasibility of using natural waste (raw date pits) as a low-cost adsorbent for the adsorption of an anionic dye (Congo red) from aqueous solution has been investigated. Adsorption optimized conditions were obtained at low dose 1 g/L, initial dye concentration 100 mg/L, pH 2, equilibrium contact time 120 min, and temperature 20 °C. The corresponding adsorption capacity was around 70 mg/g and could reach 150 mg/g by increasing the ionic strength of the dye solution (0.05 M CaCl2). These results are well modeled by Freundlich isotherm and kinetics study followed by pseudo second-order model. Thermodynamic parameters indicate that the adsorption process is endothermic and not spontaneous. The tests of desorption-regeneration showed that the studied adsorbent has the disadvantage of the loss of efficiency at its reuse but this is offset by its abundance. Based on these results, it can be used as competitive material for the removal of dyes.
[Mh] Termos MeSH primário: Compostos Azo/química
Vermelho Congo/química
Phoeniceae/química
Sementes/química
[Mh] Termos MeSH secundário: Adsorção
Concentração de Íons de Hidrogênio
Modelos Teóricos
Temperatura Ambiente
Poluentes da Água
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Azo Compounds); 0 (Water Pollutants); 3U05FHG59S (Congo Red)
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171103
[Lr] Data última revisão:
171103
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170901
[St] Status:MEDLINE
[do] DOI:10.2175/106143017X14902968254863


  6 / 178 MEDLINE  
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[PMID]:28830415
[Au] Autor:Khan F; Khan TJ; Kalamegam G; Pushparaj PN; Chaudhary A; Abuzenadah A; Kumosani T; Barbour E; Al-Qahtani M
[Ad] Endereço:Biochemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia.
[Ti] Título:Anti-cancer effects of Ajwa dates (Phoenix dactylifera L.) in diethylnitrosamine induced hepatocellular carcinoma in Wistar rats.
[So] Source:BMC Complement Altern Med;17(1):418, 2017 Aug 22.
[Is] ISSN:1472-6882
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Hepatocellular carcinoma (HCC) accounts for major cancer-related deaths despite current advanced therapies. Treatment and prognosis of HCC is better in patients with preserved liver function. Many natural products including ajwa dates (Phoenix dactylifera L.), are claimed to have hepatoprotective and HCC inhibitory effects, but most lack scientific validation. To prove our hypothesis, we attempted to evaluate the HCC inhibitory effects, and other beneficial properties of the aqueous extract of ajwa dates (ADE) in a rat model of diethylnitrosamine (DEN) induced liver cancer. METHODS: Thirty-two male rats were divided into four groups of eight each as follows, Group A: untreated control; Group B: DEN control (180 mg/kg bw), Group C: DEN + ADE 0.5 g/kg bw; and Group D: DEN +1.0 g/kg bw. Rats from all groups were assessed for liver cancer progression or inhibition by evaluating histological, biochemical, antioxidant enzyme status, cytokines and gene expression profiles. RESULTS: DEN treatment Groups (B, C, D) showed histological features of HCC and in rats treated with ADE (Groups C, D) partial to complete reversal of normal liver architecture was observed. Antioxidant enzymes such as superoxide dismutase (SOD), glutathione reductase (GR), glutatione peroxidase (GPx) and catalase (CAT) were increased, while the liver enzymes alanine aminotransferase (ALT), aspartate aminotransferase (AST) and alkaline phosphatase (ALP) levels and lipid peroxidation were significantly decreased in Group C and Group D compared to Group B. Pro-inflammatory cytokines such as interleukin (IL)-1α, IL-1ß,, GM-CSF) were increased in the serum of rats in Group B while the anti-tumor cytokines (IL-2, IL-12) were increased in ADE treated Groups (C, D). In addition, Alpha-Feto Protein (AFP) and IL-6 gene expression levels were upregulated in Group B, while they were significantly downregulated in ADE treated Groups (C, D). CONCLUSIONS: ADE helped in the reversal of DEN damaged liver towards normal. Restoration of anti-oxidant enzymes, liver enzymes, cytokines balance and gene expression to normal levels following ADE treatment indicates that ADE improves liver function and inhibits HCC. ADE can, therefore, be used together with conventional therapeutics for HCC.
[Mh] Termos MeSH primário: Antineoplásicos
Carcinoma Hepatocelular/tratamento farmacológico
Neoplasias Hepáticas/tratamento farmacológico
Phoeniceae/química
Extratos Vegetais
[Mh] Termos MeSH secundário: Animais
Antineoplásicos/química
Antineoplásicos/farmacologia
Antineoplásicos/uso terapêutico
Antioxidantes/análise
Carcinoma Hepatocelular/induzido quimicamente
Carcinoma Hepatocelular/metabolismo
Carcinoma Hepatocelular/patologia
Citocinas/sangue
Dietilnitrosamina/toxicidade
Frutas/química
Fígado/efeitos dos fármacos
Fígado/patologia
Neoplasias Hepáticas/induzido quimicamente
Neoplasias Hepáticas/metabolismo
Neoplasias Hepáticas/patologia
Masculino
Extratos Vegetais/química
Extratos Vegetais/farmacologia
Extratos Vegetais/uso terapêutico
Ratos
Ratos Wistar
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antineoplastic Agents); 0 (Antioxidants); 0 (Cytokines); 0 (Plant Extracts); 3IQ78TTX1A (Diethylnitrosamine)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170911
[Lr] Data última revisão:
170911
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170824
[St] Status:MEDLINE
[do] DOI:10.1186/s12906-017-1926-6


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[PMID]:28605547
[Au] Autor:Husain M; Alwaneen WS; Mehmood K; Rasool KG; Tufail M; Aldawood AS
[Ad] Endereço:Economic Entomology Research Unit, Plant Protection Department, College of Food and Agriculture Sciences, King Saud University, Riyadh 11451, Saudi Arabia.
[Ti] Título:Biological Traits of Cadra cautella (Lepidoptera: Pyralidae) Reared on Khodari Date Fruits Under Different Temperature Regimes.
[So] Source:J Econ Entomol;110(4):1923-1928, 2017 Aug 01.
[Is] ISSN:1938-291X
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The almond moth, Cadra cautella (Walker) (Lepidoptera: Pyralidae), is a serious worldwide pest of dates and other crops, both in the field and in storage. Infestation by this pest significantly limits the sale and export of dates. Modified atmospheres, the temperature manipulations, are the best eco-friendly alternatives in stored product protection. We examined temperature regulation as an ecologically friendly method of pest management in stored food commodities, in particular, its effects on characteristics of C. cautella biology, including development time, oviposition period, fecundity, fertility, and longevity of adults reared on date cultivar 'Khodari,' at temperatures of 15, 25, and 35 ± 1 °C, with 65 ± 5% relative humidity and a photoperiod of 15:9 (L:D) h. Six larval instars were recorded at each temperature. Larval development was sluggish at 15 °C; therefore, daily observations were terminated after 180 d of the larval span for this temperature. Total larval spans of 48.95 ± 0.76 and 32.12 ± 1.08 d were recorded at 25 °C and 35 °C, respectively. A mean ovipositional period of 5.80 ± 0.44 d yielding 213.60 ± 13.41 eggs per female, with hatchability of 85.94 ± 2.97%, was recorded at 25 °C, whereas at 35 °C, a mean ovipositional period of 1.60 ± 0.26 d yielded 19.80 ± 5.11 eggs per female, with no hatchability. These differences were highly significant. Our observations of poor development at 15 °C, lower numbers of eggs and absence of hatchability at 35 °C, together with head capsule measurements and growth ratios, can be of benefit when planning management strategies to reduce C. cautella infestation.
[Mh] Termos MeSH primário: Mariposas/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Herbivoria
Larva/crescimento & desenvolvimento
Larva/fisiologia
Traços de História de Vida
Longevidade
Masculino
Mariposas/crescimento & desenvolvimento
Phoeniceae/fisiologia
Pupa/crescimento & desenvolvimento
Pupa/fisiologia
Reprodução
Temperatura Ambiente
[Pt] Tipo de publicação:JOURNAL ARTICLE
[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:170613
[St] Status:MEDLINE
[do] DOI:10.1093/jee/tox162


  8 / 178 MEDLINE  
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[PMID]:28570677
[Au] Autor:Safronov O; Kreuzwieser J; Haberer G; Alyousif MS; Schulze W; Al-Harbi N; Arab L; Ache P; Stempfl T; Kruse J; Mayer KX; Hedrich R; Rennenberg H; Salojärvi J; Kangasjärvi J
[Ad] Endereço:Department of Biosciences, University of Helsinki, Helsinki, Finland.
[Ti] Título:Detecting early signs of heat and drought stress in Phoenix dactylifera (date palm).
[So] Source:PLoS One;12(6):e0177883, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Plants adapt to the environment by either long-term genome evolution or by acclimatization processes where the cellular processes and metabolism of the plant are adjusted within the existing potential in the genome. Here we studied the adaptation strategies in date palm, Phoenix dactylifera, under mild heat, drought and combined heat and drought by transcriptomic and metabolomic profiling. In transcriptomics data, combined heat and drought resembled heat response, whereas in metabolomics data it was more similar to drought. In both conditions, soluble carbohydrates, such as fucose, and glucose derivatives, were increased, suggesting a switch to carbohydrate metabolism and cell wall biogenesis. This result is consistent with the evidence from transcriptomics and cis-motif analysis. In addition, transcriptomics data showed transcriptional activation of genes related to reactive oxygen species in all three conditions (drought, heat, and combined heat and drought), suggesting increased activity of enzymatic antioxidant systems in cytosol, chloroplast and peroxisome. Finally, the genes that were differentially expressed in heat and combined heat and drought stresses were significantly enriched for circadian and diurnal rhythm motifs, suggesting new stress avoidance strategies.
[Mh] Termos MeSH primário: Secas
Temperatura Alta
Phoeniceae/fisiologia
Estresse Fisiológico
[Mh] Termos MeSH secundário: Antioxidantes/metabolismo
Genes de Plantas
Metabolômica
Phoeniceae/genética
Phoeniceae/metabolismo
Espécies Reativas de Oxigênio/metabolismo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Antioxidants); 0 (Reactive Oxygen Species)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170921
[Lr] Data última revisão:
170921
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170602
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0177883


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[PMID]:28558069
[Au] Autor:Al-Kindi KM; Kwan P; Andrew N; Welch M
[Ad] Endereço:School of Science and Technology, University of New England, Armidale, New South Wales, Australia.
[Ti] Título:Impact of environmental variables on Dubas bug infestation rate: A case study from the Sultanate of Oman.
[So] Source:PLoS One;12(5):e0178109, 2017.
[Is] ISSN:1932-6203
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Date palm cultivation is economically important in the Sultanate of Oman, with significant financial investment coming from both the government and from private individuals. However, a global infestation of Dubas bug (Ommatissus lybicus Bergevin) has impacted the Middle East region, and infestations of date palms have been widespread. In this study, spatial analysis and geostatistical techniques were used to model the spatial distribution of Dubas bug infestations to (a) identify correlations between Dubas bug densities and different environmental variables, and (b) predict the locations of future Dubas bug infestations in Oman. Firstly, we considered individual environmental variables and their correlations with infestation locations. Then, we applied more complex predictive models and regression analysis techniques to investigate the combinations of environmental factors most conducive to the survival and spread of the Dubas bug. Environmental variables including elevation, geology, and distance to drainage pathways were found to significantly affect Dubas bug infestations. In contrast, aspect and hillshade did not significantly impact on Dubas bug infestations. Understanding their distribution and therefore applying targeted controls on their spread is important for effective mapping, control and management (e.g., resource allocation) of Dubas bug infestations.
[Mh] Termos MeSH primário: Hemípteros/patogenicidade
Phoeniceae/parasitologia
[Mh] Termos MeSH secundário: Animais
Modelos Teóricos
Omã
Análise de Regressão
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170921
[Lr] Data última revisão:
170921
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170531
[St] Status:MEDLINE
[do] DOI:10.1371/journal.pone.0178109


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[PMID]:28480436
[Au] Autor:Bentrad N; Gaceb-Terrak R; Benmalek Y; Rahmania F
[Ad] Endereço:Laboratory Research on Arid Zones.
[Ti] Título:STUDIES ON CHEMICAL COMPOSITION AND ANTIMICROBIAL ACTIVITIES OF BIOACTIVE MOLECULES FROM DATE PALM L.) POLLENS AND SEEDS.
[So] Source:Afr J Tradit Complement Altern Med;14(3):242-256, 2017.
[Is] ISSN:2505-0044
[Cp] País de publicação:Nigeria
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Natural resources have been the crucial origin of chemical elements. They have been used in many traditions as alternative medicines. The chemical profiling of some plant extracts and essential oils related to different plants were followed to unveil their most active components. In this paper, L was selected as a host plant to investigate the composition of different organs with different cultivars. MATERIALS AND METHOD: The antibacterial and antifungal activities of the extracts have been tested using different techniques, including optical density and GC/MS analyses of the natural extracts. RESULTS: GC/MS analysis revealed the presence of abundant oleic (36.69%) and lauric (20.49%) acids in date seeds. However, the pollen contains a high amount of palmitic (22.27 %), linoleic (33.4%) and linolenic (17.055%) acids. Moreover, the largest inhibition zone is obtained with the organic extract of Deglet Nour which showed a strong antibacterial activity against and pollen extract showed also a strong inhibition against , , MRSA and . Aqueous extracts of date palm seeds of and pollen seem to have a fongitoxique activity from a concentration of 6 mg.mL and 12mg.mL of cyanidine; as well as the organic extracts of pollen with a concentration of 90 µg.mL" induce an inhibition to the growth of five special forms of . CONCLUSION: The bioactive compounds of date palm can be used for drug development and in the food industry.
[Mh] Termos MeSH primário: Antibacterianos/farmacologia
Antifúngicos/farmacologia
Phoeniceae/química
Compostos Fitoquímicos/farmacologia
Pólen/química
Sementes/química
[Mh] Termos MeSH secundário: Antibacterianos/análise
Antifúngicos/análise
Antioxidantes/análise
Antioxidantes/farmacologia
Flavonoides/análise
Flavonoides/farmacologia
Cromatografia Gasosa-Espectrometria de Massas
Testes de Sensibilidade Microbiana
Compostos Fitoquímicos/análise
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Anti-Bacterial Agents); 0 (Antifungal Agents); 0 (Antioxidants); 0 (Flavonoids); 0 (Phytochemicals)
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170815
[Lr] Data última revisão:
170815
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170509
[St] Status:MEDLINE
[do] DOI:10.21010/ajtcam.v14i3.26



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