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https://www.readbyqxmd.com/read/28448637/45s-rdna-external-transcribed-spacer-organization-reveals-new-phylogenetic-relationships-in-avena-genus
#1
Joana Rodrigues, Wanda Viegas, Manuela Silva
The genus Avena comprises four distinct genomes organized in diploid (AA or CC), tetraploid (AABB or AACC) and hexaploid species (AACCDD), constituting an interesting model for phylogenetic analysis. The aim of this work was to characterize 45S rDNA intergenic spacer (IGS) variability in distinct species representative of Avena genome diversity-A. strigosa (AA), A. ventricosa (CvCv), A. eriantha (CpCp), A. barbata (AABB), A. murphyi (AACC), A. sativa (AACCDD) and A. sterilis (AACCDD) through the assessment of the 5' external transcribed spacer (5'-ETS), a promising IGS region for phylogenetic studies poorly studied in Avena genus...
2017: PloS One
https://www.readbyqxmd.com/read/28443946/the-production-of-knowledge-and-the-strategies-to-incorporate-results-into-the-practice-of-nursing
#2
EDITORIAL
Magdalena José Avena, Dulce Aparecida Barbosa
No abstract text is available yet for this article.
April 13, 2017: Revista Gaúcha de Enfermagem
https://www.readbyqxmd.com/read/28429582/obesity-and-addiction-can-a-complication-of-surgery-help-us-understand-the-connection
#3
REVIEW
V Ivezaj, L E Stoeckel, N M Avena, S C Benoit, A Conason, J F Davis, A N Gearhardt, R Goldman, J E Mitchell, C N Ochner, K K Saules, K J Steffen, E Stice, S Sogg
Obesity is a multifactorial, chronic disease that has proven difficult to treat. An increased understanding of aetiological mechanisms is critical to the development of more effective obesity prevention and treatment strategies. A growing body of empirical evidence has demonstrated parallels between obesity, overeating and substance abuse, including shared behavioural, psychological and neurophysiological factors implicated in the excessive intake of both food and substances of abuse. Several different lines of research have recently emerged that hold the potential to shed light on the connection between obesity, food reward and addiction, with studies examining changes in alcohol use/misuse after weight loss surgery providing a particularly interesting perspective on these interrelationships...
April 21, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28412349/light-induced-protein-degradation-in-human-derived-cells
#4
Wansheng Sun, Wenyao Zhang, Chao Zhang, Miaowei Mao, Yuzheng Zhao, Xianjun Chen, Yi Yang
Controlling protein degradation can be a valuable tool for posttranslational regulation of protein abundance to study complex biological systems. In the present study, we designed a light-switchable degron consisting of a light oxygen voltage (LOV) domain of Avena sativa phototropin 1 (AsLOV2) and a C-terminal degron. Our results showed that the light-switchable degron could be used for rapid and specific induction of protein degradation in HEK293 cells by light in a proteasome-dependent manner. Further studies showed that the light-switchable degron could also be utilized to mediate the degradation of secreted Gaussia princeps luciferase (GLuc), demonstrating the adaptability of the light-switchable degron in different types of protein...
April 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28406246/unravelling-mycorrhiza-induced-wheat-susceptibility-to-the-english-grain-aphid-sitobion-avenae
#5
Amma L Simon, Peter A D Wellham, Gudbjorg I Aradottir, Alan C Gange
Arbuscular mycorrhizal (AM) fungi are root symbionts that can increase or decrease aphid growth rates and reproduction, but the reason by which this happens is unknown. To investigate the underlying mechanisms of this interaction, we examined the effect of AM fungi on the English Grain aphid (Sitobion avenae) development, reproduction, attraction, settlement and feeding behaviour on two naturally susceptible varieties Triticum aestivum (L.) variety Solstice and T. monococcum MDR037, and two naturally resistant lines, T...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28322022/the-effect-of-landscape-complexity-and-microclimate-on-the-thermal-tolerance-of-a-pest-insect
#6
Lucy Alford, Kévin Tougeron, Jean-Sébastien Pierre, Françoise Burel, Joan van Baaren
Landscape changes are known to exacerbate the impacts of climate change. As such, understanding the combined effect of climate and landscape on agro-ecosystems is vital if we are to maintain the function of agro-ecosystems. The present study aimed to elucidate the effects of agricultural landscape complexity on the microclimate and thermal tolerance of an aphid pest to better understand how landscape and climate may interact to affect the thermal tolerance of pest species within the context of global climate change...
March 21, 2017: Insect Science
https://www.readbyqxmd.com/read/28303034/searching-for-wheat-resistance-to-aphids-and-wheat-bulb-fly-in-the-historical-watkins-and-gediflux-wheat-collections
#7
G I Aradottir, J L Martin, S J Clark, J A Pickett, L E Smart
Insect pests can reduce wheat yield by direct feeding and transmission of plant viruses. Here we report results from laboratory and field phenotyping studies on a wide range of wheat, including landraces from the Watkins collection deriving from before the green revolution, more modern cultivars from the Gediflux collection (north-western Europe) and modern UK Elite varieties, for resistance to the bird cherry-oat aphid, Rhopalosiphum padi (Homoptera: Aphididae) and the English grain aphid, Sitobion avenae (Homoptera: Aphididae)...
March 2017: Annals of Applied Biology
https://www.readbyqxmd.com/read/28298700/extraction-chemical-characterization-and-antioxidant-activity-of-litchi-chinensis-sonn-and-avena-sativa-l-seeds-extracts-obtained-from-pressurized-n-butane
#8
Marshall Paliga, Zuleica Novello, Rogério M Dallago, Jaqueline Scapinello, Jacir Dal Magro, Marco Di Luccio, Marcus V Tres, J Vladimir Oliveira
The extraction of litchi (Litchi chinensis Sonn.) and oat (Avena sativa L.) seeds were investigated using n-butane as pressurized solvent by evaluating the effect of pressure in the range of 7-100 bar and temperature from 25 to 70 °C on the extract yield and chemical composition together with the antioxidant activity of the extracts obtained. It was experimentally observed extraction yields for both seeds up to ~3.5 wt%, with a total phenolic content around 126.4 mg GAE/100 g of extract, and an antioxidant activity up to 78...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28294144/corrigendum-unraveling-the-evolutionary-dynamics-of-ancient-and-recent-polyploidization-events-in-avena-poaceae
#9
Qing Liu, Lei Lin, Xiangying Zhou, Paul M Peterson, Jun Wen
No abstract text is available yet for this article.
March 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28291827/neighbour-presence-not-identity-influences-root-and-shoot-allocation-in-pea
#10
Cory E Jacob, Eric Tozzi, Christian J Willenborg
Competition is a key feature that structures the composition of plant communities. A growing body of evidence is showing that the presence of neighbours, especially belowground neighbours, induces varied morphological responses in plants. However, in many species, it is not known whether neighbour identity also influences plant morphological responses such as biomass allocation patterns. To assess plant response to above- and belowground neighbour presence and identity, we conducted a greenhouse experiment consisting of conspecific (pea; Pisum sativum L...
2017: PloS One
https://www.readbyqxmd.com/read/28289537/comparative-analysis-of-pre-and-post-parasitic-transcriptomes-and-mining-pioneer-effectors-of-heterodera-avenae
#11
Dan Yang, Changlong Chen, Qian Liu, Heng Jian
BACKGROUND: The cereal cyst nematode (CCN, Heterodera avenae) is a devastating pathogen of wheat and barley crops in many countries. We aimed to prioritize genetic and molecular targets for H. avenae control via the powerful and integrative bioinformatics platform. RESULTS: Here, we sequenced mRNA isolated from Chinese H. avenae at pre-parasitic (consisting of egg, J1 and hatched-J2) stages and post-parasitic (consisting of parasitic-J2, J3, J4 and adults) stages...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28283822/antiproliferative-activity-of-vitexin-2-o-xyloside-and-avenanthramides-on-caco-2-and-hepg2-cancer-cells-occurs-through-apoptosis-induction-and-reduction-of-pro-survival-mechanisms
#12
Emanuele Salvatore Scarpa, Elena Antonini, Francesco Palma, Michele Mari, Paolino Ninfali
PURPOSE: CaCo-2 colon cancer cells and HepG2 liver cancer cells represent two malignant cell lines, which show a high resistance to apoptosis induced by the conventional anticancer drugs. Vitexin-2-O-xyloside (XVX) and avenanthramides (AVNs) are naturally occurring dietary agents from Beta vulgaris var. cicla L. and Avena sativa L., respectively. The aim of this work was to evaluate the antiproliferative effects and the reduction of the pro-survival mechanisms exerted by XVX and AVNs, used individually and in combination, in CaCo-2 and HepG2 cancer cells...
March 10, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28283383/life-stages-of-an-aphid-living-under-similar-thermal-conditions-differ-in-thermal-performance
#13
Fei Zhao, Ary A Hoffmann, Kun Xing, Chun-Sen Ma
Heat responses can vary ontogenetically in many insects with complex life cycles, reflecting differences in thermal environments they experience. Such variation has rarely been considered in insects that develop incrementally and experience common microclimates across stages. To test if there is a low level of ontogenetic variation for heat responses in one such species, the English grain aphid Sitobion avenae, basal tolerance [upper lethal temperature (ULT50) and maximum critical temperature (CTmax)], hardening capacity (CTmax) and hardening costs (adult longevity and fecundity) were measured across five stages (1st, 2nd, 3rd and 4th-instar nymphs and newly moulted adults)...
March 8, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28248976/residual-soil-nitrate-content-and-profitability-of-five-cropping-systems-in-northwest-iowa
#14
Robert L De Haan, Matthew A Schuiteman, Ronald J Vos
Many communities in the Midwestern United States obtain their drinking water from shallow alluvial wells that are vulnerable to contamination by NO3-N from the surrounding agricultural landscape. The objective of this research was to assess cropping systems with the potential to produce a reasonable return for farmers while simultaneously reducing the risk of NO3-N movement into these shallow aquifers. From 2009 to 2013 we conducted a field experiment in northwest Iowa in which we evaluated five cropping systems for residual (late fall) soil NO3-N content and profitability...
2017: PloS One
https://www.readbyqxmd.com/read/28228946/reward-and-punishment-sensitivity-and-disordered-eating-behaviors-in-men-and-women
#15
Kalina T Eneva, Susan Murray, Jared O'Garro-Moore, Angelina Yiu, Lauren B Alloy, Nicole M Avena, Eunice Y Chen
BACKGROUND: Reward and punishment sensitivities have been identified as potential contributors to binge eating and compensatory behaviors, though few studies have examined gender differences in these behaviors. METHOD: A college-aged sample (N = 1,022) completed both the Eating Disorders Diagnostic Scale (EDDS) and Sensitivity to Punishment/Sensitivity to Reward Questionnaire (SPSRQ). RESULTS: Rates of binge eating were similar in males and females...
2017: Journal of Eating Disorders
https://www.readbyqxmd.com/read/28193860/investigations-of-human-myosin-vi-targeting-using-optogenetically-controlled-cargo-loading
#16
Alexander R French, Tobin R Sosnick, Ronald S Rock
Myosins play countless critical roles in the cell, each requiring it to be activated at a specific location and time. To control myosin VI with this specificity, we created an optogenetic tool for activating myosin VI by fusing the light-sensitive Avena sativa phototropin1 LOV2 domain to a peptide from Dab2 (LOVDab), a myosin VI cargo protein. Our approach harnesses the native targeting and activation mechanism of myosin VI, allowing direct inferences on myosin VI function. LOVDab robustly recruits human full-length myosin VI to various organelles in vivo and hinders peroxisome motion in a light-controllable manner...
February 28, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28188590/pesticide-stress-on-plants-negatively-affects-parasitoid-fitness-through-a-bypass-of-their-phytophage-hosts
#17
Andries A Kampfraath, Daniel Giesen, Cornelis A M van Gestel, Cécile Le Lann
Pesticides taken up by plants from the soil or interstitial (pore) water can cascade to higher trophic levels, which are expected to be more affected due to cumulative bottom-up effects. Knowledge about the impact of indirect exposure to pesticides on non-target terrestrial trophic chains, however, is still lacking. Therefore, we examined the direct and indirect effects of three concentrations of the herbicide 2,6-dichlorobenzonitrile (DCBN) and an insecticide with a similar molecular structure (1,4-dichlorobenzene, DCB) on the fitness traits of a tritrophic system: the wheat plant Triticum aestivum, the aphid Sitobion avenae and its specialist parasitoid Aphidius rhopalosiphi...
April 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28163585/association-analysis-of-resistance-to-cereal-cyst-nematodes-heterodera-avenae-and-root-lesion-nematodes-pratylenchus-neglectus-and-p-thornei-in-cimmyt-advanced-spring-wheat-lines-for-semi-arid-conditions
#18
Abdelfattah A Dababat, Gomez-Becerra Hugo Ferney, Gul Erginbas-Orakci, Susanne Dreisigacker, Mustafa Imren, Halil Toktay, Halil I Elekcioglu, Tesfamariam Mekete, Julie M Nicol, Omid Ansari, Francis Ogbonnaya
To identify loci linked to nematode resistance genes, a total of 126 of CIMMYT advanced spring wheat lines adapted to semi-arid conditions were screened for resistance to Heterodera avenae, Pratylenchus neglectus, and P. thornei, of which 107 lines were genotyped with 1,310 DArT. Association of DArT markers with nematode response was analyzed using the general linear model. Results showed that 11 markers were associated with resistance to H. avenae (pathotype Ha21), 25 markers with resistance to P. neglectus, and 9 significant markers were identified to be linked with resistance to P...
December 2016: Breeding Science
https://www.readbyqxmd.com/read/28157193/unraveling-the-evolutionary-dynamics-of-ancient-and-recent-polypoidization-events-in-avena-poaceae
#19
Qing Liu, Lei Lin, Xiangying Zhou, Paul M Peterson, Jun Wen
Understanding the diversification of polyploid crops in the circum-Mediterranean region is a challenging issue in evolutionary biology. Sequence data of three nuclear genes and three plastid DNA fragments from 109 accessions of Avena L. (Poaceae) and the outgroups were used for maximum likelihood and Bayesian analyses. The evolution of cultivated oat (Avena sativa L.) and its close relatives was inferred to have involved ancient allotetraploidy and subsequent recent allohexaploidy events. The crown ages of two infrageneric lineages (Avena sect...
February 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28157176/the-essential-oil-of-monarda-didyma-l-lamiaceae-exerts-phytotoxic-activity-in-vitro-against-various-weed-seed
#20
Donata Ricci, Francesco Epifano, Daniele Fraternale
The chemical composition of the essential oil of the flowering aerial parts of Monarda didyma L. cultivated in central Italy was analyzed by Gas Chromatography/Mass Spectrometry (GC/MS). The major compounds of the oil were thymol (59.3%), p-cymene (10.3%), terpinolene (9.2%), δ-3-carene (4.4%), myrcene (3.7%), and camphene (3.4%). The essential oil was tested in vitro for its anti-germination activity against Papaver rhoeas L., Taraxacum officinale F. H. Wigg., Avena fatua L., Raphanus sativus L. and Lepidium sativum L...
February 2, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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