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https://www.readbyqxmd.com/read/28068090/femtosecond-to-millisecond-dynamics-of-light-induced-allostery-in-the-avena-sativa-lov-domain
#1
Agnieszka A Gil, Sergey P Laptenok, Jarrod B French, James N Iuliano, Andras Lukacs, Christopher R Hall, Igor V Sazanovich, Gregory M Greetham, Adelbert Bacher, Boris Illarionov, Markus Fischer, Peter J Tonge, Stephen R Meech
The rational engineering of photosenor proteins underpins the field of optogenetics, in which light is used for spatio-temporal control of cell signalling. Optogenetic elements function by converting electronic excitation of an embedded chromophore into structural changes on the μs-sec timescale, which then modulate the activity of output domains responsible for biological signalling. Using time resolved vibrational spectroscopy coupled with isotope labelling we have mapped the structural evolution of the LOV2 domain of the flavin binding phototropin Avena sativa (AsLOV2) over 10 decades of time, reporting structural dynamics between 100 femtoseconds and one millisecond after optical ex-citation...
January 9, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28056335/effects-of-handling-and-environment-on-preterm-newborns-sleeping-in-incubators
#2
Kelly Cristina Sbampato Calado Orsi, Marta José Avena, Marcia Lurdes de Cacia Pradella-Hallinan, Mavilde da Luz Gonçalves Pedreira, Miriam Harumi Tsunemi, Ariane Ferreira Machado Avelar, Eliana Moreira Pinheiro
OBJECTIVE: To describe the total sleep time, stages of sleep, and wakefulness of preterm newborns and correlate them to levels of sound pressure, light, temperature, relative air humidity, and handling inside incubators. DESIGN: Observational, correlational study. SETTING: A neonatal intermediate care unit. PARTICIPANTS: Twelve preterm newborns, who were 32.2 ± 4.2 weeks gestational age and weighed 1,606 ± 317 g. METHODS: Sleep records were assessed by polysomnograph...
January 2, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/28054034/sensory-evaluation-of-gluten-free-quinoa-whole-grain-snacks
#3
Talwinder S Kahlon, Roberto J Avena-Bustillos, Mei-Chen M Chiu
Sensory evaluation of quinoa gluten-free whole grain low fat and salt snacks was conducted. The snacks were Quinoa, Quinoa-Cayenne Pepper, Quinoa-Ginger and Quinoa-Turmeric. Cayenne pepper, ginger and turmeric are common spices that contain health promoting nutrients. Cayenne pepper has been associated with enhancing heat production. Ginger has been reported to improve blood flow and prevent joint pains. Turmeric has been observed to have wound healing potential. All the snacks contained 6% corn oil and 2% salt...
December 2016: Heliyon
https://www.readbyqxmd.com/read/28006018/potential-host-manipulation-by-the-aphid-parasitoid-aphidius-avenae-to-enhance-cold-tolerance
#4
Lucy Alford, Annabelle Androdias, Thomas Franco, Jean-Sébastien Pierre, Françoise Burel, Joan van Baaren
During parasitoid development, the immature parasitoid is confined to the host species. As a result, any potential to modify the physiology or behaviour of the host could play an important role in parasitoid fitness. The potential for host manipulation by the aphid parasitoid Aphidius avenae to increase cold thermotolerance was investigated using the aphid host species Metopolophium dirhodum and Sitobion avenae. Aphids were parasitized at L3/L4 instar stage (5 d old) and allowed to develop into pre-reproductive adults (10 d old) containing a 5 d old parasitoid larva...
2016: PloS One
https://www.readbyqxmd.com/read/28003041/the-impact-of-oat-avena-sativa-consumption-on-biomarkers-of-renal-function-in-patients-with-chronic-kidney-disease-a-parallel-randomized-clinical-trial
#5
Mohammad Hossein Rouhani, Mojgan Mortazavi Najafabadi, Pamela J Surkan, Ahmad Esmaillzadeh, Awat Feizi, Leila Azadbakht
BACKGROUND & OBJECTIVE: Animal studies report that oat (Avena sativa L) intake has favorable effects on kidney function. However, the effects of oat consumption have not been assessed in humans. The aim of this study was to examine the impact of oat intake on biomarkers of renal function in patients with chronic kidney disease (CKD). METHODS: Fifty-two patients with CKD were randomly assigned to a control group (recommended to reduce intake of dietary protein, phosphorus, sodium and potassium) or an oat consumption group (given nutritional recommendations for controls +50 g/day oats)...
December 2, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27989563/preclinical-evidence-for-the-addiction-potential-of-highly-palatable-foods-current-developments-related-to-maternal-influence
#6
David A Wiss, Kristen Criscitelli, Mark Gold, Nicole Avena
It is well established that obesity has reached pandemic proportions. Over the last four decades the prevalence of obesity and morbid obesity have risen substantially in both men and women worldwide. Although there are many causative factors leading to excessive weight gain including genetics and sedentary lifestyle, the transformation of the food environment has undoubtedly contributed to the dangerously high rates of obesity. The current food landscape is inundated with food engineered to contain artificially high levels of sugar and fat...
December 15, 2016: Appetite
https://www.readbyqxmd.com/read/27983806/key-phytochemicals-contributing-to-the-bitter-off-taste-of-oat-avena-sativa-l
#7
Kirsten Günther-Jordanland, Corinna Dawid, Maximilian Dietz, Thomas Hofmann
Sensory-directed fractionation of extracts prepared from oat flour (Avena sativa L.) followed by LC-TOF-MS, LC-MS/MS, and 1D/2D-NMR experiments revealed avenanthramides and saponins as the key phytochemicals contributing to the typical astringent and bitter off-taste of oat. Besides avenacosides A and B, two previously unreported bitter-tasting bidesmosidic saponins were identified, namely, 3-(O-α-l-rhamnopyranosyl(1→2)-[β-d-glucopyranosyl(1→3)-β-d-glucopyranosyl(1→4)]-β-d-glucopyranosid)-26-O-β-d-glucopyranosyl-(25R)-furost-5-ene-3β,22,26-triol, and 3-(O-α-l-rhamnopyranosyl(1→2)-[β-d-glucopyranosyl(1→4)]-β-d-glucopyranosid)-26-O-β-d-glucopyranosyl-(25R)-furost-5-ene-3β,22,26-triol...
December 28, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27983619/rna-interference-of-the-ecdysone-receptor-genes-ecr-and-usp-in-grain-aphid-sitobion-avenae-f-affects-its-survival-and-fecundity-upon-feeding-on-wheat-plants
#8
Ting Yan, Hongmei Chen, Yongwei Sun, Xiudao Yu, Lanqin Xia
RNA interference (RNAi) has been widely used in functional genomics of insects and received intensive attention in the development of RNAi-based plants for insect control. Ecdysone receptor (EcR) and ultraspiracle protein (USP) play important roles in molting, metamorphosis, and reproduction of insects. EcR and USP orthologs and their function in grain aphid (Sitobion avenae F.) have not been documented yet. Here, RT-PCR, qRT-PCR, dsRNA feeding assay and aphid bioassay were employed to isolate EcR and USP orthologs in grain aphid, investigate their expression patterns, and evaluate the effect of RNAi on aphid survival and fecundity, and its persistence...
December 14, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27936012/sugarcane-transcriptome-analysis-in-response-to-infection-caused-by-acidovorax-avenae-subsp-avenae
#9
Ailton B Santa Brigida, Cristian A Rojas, Clícia Grativol, Elvismary M de Armas, Júlio O P Entenza, Flávia Thiebaut, Marcelo de F Lima, Laurent Farrinelli, Adriana S Hemerly, Sérgio Lifschitz, Paulo C G Ferreira
Sugarcane is an important tropical crop mainly cultivated to produce ethanol and sugar. Crop productivity is negatively affected by Acidovorax avenae subsp avenae (Aaa), which causes the red stripe disease. Little is known about the molecular mechanisms triggered in response to the infection. We have investigated the molecular mechanism activated in sugarcane using a RNA-seq approach. We have produced a de novo transcriptome assembly (TR7) from sugarcane RNA-seq libraries submitted to drought and infection with Aaa...
2016: PloS One
https://www.readbyqxmd.com/read/27930909/fda-regulation-of-neurological-and-physical-medicine-devices-access-to-safe-and-effective-neurotechnologies-for-all-americans
#10
Leigh Anderson, Patrick Antkowiak, Aden Asefa, Amber Ballard, Tushar Bansal, Ayo Bello, Bernard Berne, Kristen Bowsher, Bennett Blumenkopf, Ian Broverman, Mohamad Bydon, Kuo Chao, Peter Como, Karlene Cork, Ann Costello, Kathryn De Laurentis, Angela DeMarco, Heather Dean, John Doucet, Bradley Dworak, Lisa Epperson, Eric Franca, Naz Ghassemian, Chandramallika Ghosh, Anupama Govindarajan, Jay Gupta, Stacie Gutowski, Robert Herrmann, Michael Hoffmann, William Heetderks, Steven Hsu, Daryl Kaufman, Erin Keegan, Gregg Kittlesen, Kevin Khuu, Hyung Lee, Larry Lo, Ian Marcus, Timothy Marjenin, Binoy Mathews, Sanjay Misra, Vivek Pinto, Vesper Ramos, Samuel Raben, Avena Russell, Devjani Saha, Joonil Seog, Christian Shenouda, Myra Smith, Xiaorui Tang, Kelliann Wachrathit, Jaime Waterhouse, Dhanya Williams, Xiaolin Zheng, Carlos Peña
The United States Food and Drug Administration (FDA) ensures that patients in the U.S. have access to safe and effective medical devices. The Division of Neurological and Physical Medicine Devices reviews medical technologies that interface with the nervous system. This article addresses how to navigate the FDA's regulatory landscape to successfully bring medical devices to patients.
December 7, 2016: Neuron
https://www.readbyqxmd.com/read/27929076/aphids-transform-and-detoxify-the-mycotoxin-deoxynivalenol-via-a-type-ii-biotransformation-mechanism-yet-unknown-in-animals
#11
N De Zutter, K Audenaert, N Arroyo-Manzanares, M De Boevre, C Van Poucke, S De Saeger, G Haesaert, G Smagghe
Biotransformation of mycotoxins in animals comprises phase I and phase II metabolisation reactions. For the trichothecene deoxynivalenol (DON), several phase II biotransformation reactions have been described resulting in DON-glutathiones, DON-glucuronides and DON-sulfates made by glutathione-S-transferases, uridine-diphosphoglucuronyl transferases and sulfotransferases, respectively. These metabolites can be easily excreted and are less toxic than their free compounds. Here, we demonstrate for the first time in the animal kingdom the conversion of DON to DON-3-glucoside (DON-3G) via a model system with plant pathogenic aphids...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27916862/contrasting-roles-of-deoxynivalenol-and-nivalenol-in-host-mediated-interactions-between-fusarium-graminearum-and-sitobion-avenae
#12
Jassy Drakulic, Mohd Haziq Kahar, Olubukola Ajigboye, Toby Bruce, Rumiana V Ray
Fusarium graminearum is the predominant causal species of Fusarium head blight in Europe and North America. Different chemotypes of the species exist, each producing a plethora of mycotoxins. Isolates of differing chemotypes produce nivalenol (NIV) and deoxynivalenol (DON), which differ in toxicity to mammals and plants. However, the effect of each mycotoxin on volatile emissions of plant hosts is not known. Host volatiles are interpreted by insect herbivores such as Sitobion avenae, the English grain aphid, during host selection...
November 30, 2016: Toxins
https://www.readbyqxmd.com/read/27909426/deconstructing-the-bat-skin-microbiome-influences-of-the-host-and-the-environment
#13
Christine V Avena, Laura Wegener Parfrey, Jonathan W Leff, Holly M Archer, Winifred F Frick, Kate E Langwig, A Marm Kilpatrick, Karen E Powers, Jeffrey T Foster, Valerie J McKenzie
Bats are geographically widespread and play an important role in many ecosystems, but relatively little is known about the ecology of their associated microbial communities and the role microbial taxa play in bat health, development, and evolution. Moreover, few vertebrate animal skin microbiomes have been comprehensively assessed, and thus characterizing the bat skin microbiome will yield valuable insight into the variability of vertebrate skin microbiomes as a whole. The recent emergence of the skin fungal disease white-nose syndrome highlights the potentially important role bat skin microbial communities could play in bat health...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27904465/simultaneous-detection-of-three-bacterial-seed-borne-diseases-in-rice-using-multiplex-polymerase-chain-reaction
#14
In Jeong Kang, Mi-Hyung Kang, Tae-Hwan Noh, Hyeong Kwon Shim, Dong Bum Shin, Suggi Heu
Burkholderia glumae (bacterial grain rot), Xanthomonas oryzae pv. oryzae (bacterial leaf blight), and Acidovorax avenae subsp. avenae (bacterial brown stripe) are major seedborne pathogens of rice. Based on the 16S and 23S rDNA sequences for A. avenae subsp. avenae and B. glumae, and transposase A gene sequence for X. oryzae pv. oryzae, three sets of primers had been designed to produce 402 bp for B. glumae, 490 bp for X. oryzae, and 290 bp for A. avenae subsp. avenae with the 63°C as an optimum annealing temperature...
December 2016: Plant Pathology Journal
https://www.readbyqxmd.com/read/27877184/compromised-photosynthetic-electron-flow-and-h2o2-generation-correlate-with-genotype-specific-stomatal-dysfunctions-during-resistance-against-powdery-mildew-in-oats
#15
Javier Sánchez-Martín, Gracia Montilla-Bascón, Luis A J Mur, Diego Rubiales, Elena Prats
Stomatal dysfunction known as "locking" has been linked to the elicitation of a hypersensitive response (HR) following attack of fungal pathogens in cereals. We here assess how spatial and temporal patterns of different resistance mechanisms, such as HR and penetration resistance influence stomatal and photosynthetic parameters in oat (Avena sativa) and the possible involvement of hydrogen peroxide (H2O2) in the dysfunctions observed. Four oat cultivars with differential resistance responses (i.e., penetration resistance, early and late HR) to powdery mildew (Blumeria graminis f...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27875306/family-wide-structural-characterization-and-genomic-comparisons-decode-the-diversity-oriented-biosynthesis-of-thalassospiramides-by-marine-proteobacteria
#16
Weipeng Zhang, Liang Lu, Qiliang Lai, Beika Zhu, Zhongrui Li, Ying Xu, Zongze Shao, Karl Herrup, Bradley S Moore, Avena C Ross, Pei-Yuan Qian
The thalassospiramide lipopeptides have great potential for therapeutic applications; however, their structural and functional diversity and biosynthesis are poorly understood. Here, by cultivating 130 Rhodospirillaceae strains sampled from oceans worldwide, we discovered 21 new thalassospiramide analogues and demonstrated their neuroprotective effects. To investigate the diversity of biosynthetic gene cluster (BGC) architectures, we sequenced the draft genomes of 28 Rhodospirillaceae strains. Our family-wide genomic analysis revealed three types of dysfunctional BGCs and four functional BGCs whose architectures correspond to four production patterns...
December 30, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27872635/rhizosphere-organic-anions-play-a-minor-role-in-improving-crop-species-ability-to-take-up-residual-phosphorus-p-in-agricultural-soils-low-in-p-availability
#17
Yanliang Wang, Tore Krogstad, Jihong L Clarke, Moritz Hallama, Anne F Øgaard, Susanne Eich-Greatorex, Ellen Kandeler, Nicholas Clarke
Many arable lands have accumulated large reserves of residual phosphorus (P) and a relatively large proportion of soil P is less available for uptake by plants. Root released organic anions are widely documented as a key physiological strategy to enhance P availability, while limited information has been generated on the contribution of rhizosphere organic anions to P utilization by crops grown in agricultural soils that are low in available P and high in extractable Ca, Al, and Fe. We studied the role of rhizosphere organic anions in P uptake from residual P in four common crops Triticum aestivum, Avena sativa, Solanum tuberosum, and Brassica napus in low- and high-P availability agricultural soils from long-term fertilization field trials in a mini-rhizotron experiment with four replications...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27868159/are-aphid-parasitoids-from-mild-winter-climates-losing-their-winter-diapause
#18
Kévin Tougeron, Cécile Le Lann, Jacques Brodeur, Joan van Baaren
Temperature is both a selective pressure and a modulator of the diapause expression in insects from temperate regions. Thus, with climate warming, an alteration of the response to seasonal changes is expected, either through genetic adaptations to novel climatic conditions or phenotypic plasticity. Since the 1980s in western France, the winter guild of aphid parasitoids (Hymenoptera: Braconidae) in cereal fields has been made up of two species: Aphidius rhopalosiphi and Aphidius matricariae. The recent activity of two other species, Aphidius avenae and Aphidius ervi, during the winter months suggests that a modification of aphid parasitoid overwintering strategies has taken place within the guild...
November 21, 2016: Oecologia
https://www.readbyqxmd.com/read/27861896/preparation-of-zein-fibers-using-solution-blow-spinning-method
#19
Fei Liu, Roberto J Avena-Bustillos, Rachelle Woods, Bor-Sen Chiou, Tina G Williams, Delilah F Wood, Cristina Bilbao-Sainz, Wallace Yokoyama, Gregory M Glenn, Tara H McHugh, Fang Zhong
Zein fibers were successfully fabricated via solution blow spinning (SBS) using acetic acid as solvent. Surface tension, viscosity and modulus of zein solutions were respectively determined by force tensiometer and rheometer. Increases of these properties were observed with an increase of concentration from 20% to 35% (w/w). The fabrication conditions of zein fibers were initially investigated as a function of zein concentration (25% to 35% w/w), feed rate (0.04 to 0.1 mL/min) and air pressure (0.28 to 0.62 MPa)...
December 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27808156/molecular-characterization-of-a-novel-effector-expansin-like-protein-from-heterodera-avenae-that-induces-cell-death-in-nicotiana-benthamiana
#20
Jing Liu, Huan Peng, Jiangkuan Cui, Wenkun Huang, Lingan Kong, Jihong Liu Clarke, Heng Jian, Guo Liang Wang, Deliang Peng
Cereal cyst nematodes are sedentary biotrophic endoparasites that maintain a complex interaction with their host plants. Nematode effector proteins are synthesized in the oesophageal glands and are secreted into plant tissues through the stylet. To understand the function of nematode effectors in parasitic plants, we cloned predicted effectors genes from Heterodera avenae and transiently expressed them in Nicotiana benthamiana. Infiltration assays showed that HaEXPB2, a predicted expansin-like protein, caused cell death in N...
November 3, 2016: Scientific Reports
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