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https://www.readbyqxmd.com/read/28922900/grass-pollen-affects-survival-and-development-of-larval-anopheles-arabiensis-diptera-culicidae
#1
Yelfwagash Asmare, Richard J Hopkins, Habte Tekie, Sharon R Hill, Rickard Ignell
Nutrients in breeding sites are critical for the survival and development of malaria mosquitoes, having a direct impact on vectorial capacity. Yet, there is a limited understanding about the natural larval diet and its impact on the individual fitness of mosquitoes. Recent studies have shown that gravid Anopheles arabiensis Patton (Diptera: Culicidae) are attracted by and oviposit in grass-associated habitats. The pollen provided by these grasses is a potential source of nutrients for the larvae. Here, we assess the effect of Typha latifolia L...
September 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28922818/-if-i-ever-have-to-go-to-prison-i-hope-it-s-a-russian-prison-british-labour-social-democracy-and-soviet-communism-1919-25
#2
Max Hodgson
Through the inter-war period, the USSR became an example of 'socialism in action' that the British labour movement could both look towards and define itself against. British visitors both criticized and acclaimed aspects of the new Soviet state between 1919 and 1925, but a consistently exceptional finding was the Soviet prison. Analysing the visits and reports of British guests to Soviet prisons, the aims of this article are threefold. Using new material from the Russian archives, it demonstrates the development of an intense admiration for, and often a desire to replicate, the Soviet penal system on the part of Labour members, future Communists, and even Liberals who visited Soviet Russia...
September 1, 2017: 20 Century British History
https://www.readbyqxmd.com/read/28922796/space-emotions-and-the-everyday-the-affective-ecology-of-1980s-london
#3
Stephen Brooke
This article explores the relationship between emotions, space and politics in 1980s London, using the Greater London Council, childcare, and racial harassment as particular foci. It brings together political history, the history of emotions, and geography to offer a new way of thinking about political culture, as well as contributing to the history of the 1980s. It is based upon archival sources.
March 1, 2017: 20 Century British History
https://www.readbyqxmd.com/read/28922772/plasmolysis-deplasmolysis-causes-changes-in-endoplasmic-reticulum-form-movement-flow-and-cytoskeletal-association
#4
Xiaohang Cheng, Ingeborg Lang, Opeyemi Samson Adeniji, Lawrence Griffing
Plasmolysis of hypocotyl cells of transgenic Arabidopsis thaliana and Nicotiana benthamiana diminishes the dynamics of the remodeling of the endoplasmic reticulum (ER) in the central protoplast, namely that withdrawn from the cell wall, and more persistent cisternae are formed, yet little change in the actin network in the protoplast occurs. Also, protein flow within the ER network in the protoplast, as detected with fluorescence recovery after photobleaching (FRAP), is not affected by plasmolysis. After plasmolysis, another network of strictly tubular ER remains attached to the plasma membrane-wall interface and is contained within the Hechtian strands and reticulum...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922768/accerbatin-a-small-molecule-at-the-intersection-of-auxin-and-reactive-oxygen-species-homeostasis-with-herbicidal-properties
#5
Yuming Hu, Thomas Depaepe, Dajo Smet, Klara Hoyerova, Petr Klíma, Ann Cuypers, Sean Cutler, Dieter Buyst, Kris Morreel, Wout Boerjan, José Martins, Jan Petrášek, Filip Vandenbussche, Dominique Van Der Straeten
The volatile two-carbon hormone ethylene acts in concert with an array of signals to affect etiolated seedling development. From a chemical screen, we isolated a quinoline carboxamide designated ACCERBATIN (AEX) that exacerbates the 1-aminocyclopropane-1-carboxylic acid-induced triple response, typical for ethylene-treated seedlings in darkness. Phenotypic analyses revealed distinct AEX effects including inhibition of root hair development and shortening of the root meristem. Mutant analysis and reporter studies further suggested that AEX most probably acts in parallel to ethylene signaling...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922766/altered-accumulation-of-osa-mir171b-contributes-to-rice-stripe-virus-infection-by-regulating-disease-symptoms
#6
Aizi Tong, Quan Yuan, Shu Wang, Jiejun Peng, Yuwen Lu, Hongying Zheng, Lin Lin, Hairu Chen, Yifu Gong, Jianping Chen, Fei Yan
Viral infection affects the pattern of plant miRNA expression. It has been presumed that reduction of miR171 and several other miRNAs influences viral symptoms in plants. We here experimentally demonstrate the association of osa-miR171b with rice stripe virus (RSV) symptoms in rice. Inhibition of osa-miR171b caused stunting with reduced chlorophyll content in leaves similar to viral symptoms. Overexpression of osa-miR171b by an artificial miRNA extended vegetative growth and enhanced chlorophyll accumulation in leaves...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922763/chicory-r2r3-myb-transcription-factors-cimyb5-and-cimyb3-regulate-fructan-1-exohydrolase-expression-in-response-to-abiotic-stress-and-hormonal-cues
#7
Hongbin Wei, Hongbo Zhao, Tao Su, Anja Bausewein, Steffen Greiner, Karsten Harms, Thomas Rausch
In the biennial Cichorium intybus, inulin-type fructans accumulate in the taproot during the first year. Upon cold or drought exposure, fructans are degraded by fructan exohydrolases, affecting inulin yield and degree of polymerization. While stress-induced expression of 1-FEH genes has been thoroughly explored, the transcriptional network mediating these responses has remained unknown. In this study, several R2R3-MYB transcriptional regulators were analysed for their possible involvement in 1-FEH regulation via transient transactivation of 1-FEH target promoters and for in vivo co-expression with target genes under different stress and hormone treatments...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922755/root-transcriptomic-responses-of-grafted-grapevines-to-heterogeneous-nitrogen-availability-depend-on-rootstock-genotype
#8
Noé Cochetel, Frédéric Escudié, Sarah Jane Cookson, Zhanwu Dai, Philippe Vivin, Pierre-François Bert, Mindy Stephania Muñoz, Serge Delrot, Christophe Klopp, Nathalie Ollat, Virginie Lauvergeat
In many fruit species, including grapevine, grafting is used to improve scion productivity and quality and to adapt the plant to environmental conditions. However, the mechanisms underlying the rootstock control of scion development are still poorly understood. The ability of rootstocks to regulate nitrogen uptake and assimilation may contribute to this control. A split-root system was used to grow heterografted grapevines and to investigate the molecular responses to changes in nitrate availability of two rootstocks known to affect scion growth differently...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922754/rice-phytochrome-interacting-factor-like1-ospil1-is-involved-in-the-promotion-of-chlorophyll-biosynthesis-through-feed-forward-regulatory-loops
#9
Yasuhito Sakuraba, Eun-Young Kim, Su-Hyun Han, Weilan Piao, Gynheung An, Daisuke Todaka, Kazuko Yamaguchi-Shinozaki, Nam-Chon Paek
In phototrophic plants, the highly conserved and tightly regulated process of chlorophyll (Chl) biosynthesis comprises multi-step reactions involving more than 15 enzymes. Since the efficiency of Chl biosynthesis strongly affects plant productivity, understanding the underlying regulatory mechanisms in crop plants can be useful for strategies to increase grain and biomass yields. Here, we show that rice (Oryza sativa) Phytochrome-Interacting Factor-Like1 (OsPIL1), a basic helix-loop-helix transcription factor, promotes Chl biosynthesis...
July 10, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28922748/cesium-uptake-by-rice-roots-largely-depends-upon-a-single-gene-hak1-which-encodes-a-potassium-transporter
#10
Hiroki Rai, Saki Yokoyama, Namiko Satoh-Nagasawa, Jun Furukawa, Takiko Nomi, Yasuka Ito, Shigeto Fujimura, Hidekazu Takahashi, Ryuichiro Suzuki, ELMannai Yousra, Akitoshi Goto, Shinichi Fuji, Shin-Ichi Nakamura, Takuro Shinano, Nobuhiro Nagasawa, Hiroetsu Wabiko, Hiroyuki Hattori
Incidents at the Fukushima and Chernobyl nuclear power stations have resulted in widespread environmental contamination by radioactive nuclides. Among them, 137cesium has a 30 year half-life, and its persistence in soil raises serious food security issues. It is therefore important to prevent plants, especially crop plants, from absorbing radiocesium. In Arabidopsis thaliana, cesium ions are transported into root cells by several different potassium transporters such as high-affinity K+ transporter 5 (AtHAK5)...
September 1, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28922740/a-conserved-dggk-motif-is-essential-for-the-function-of-the-pglb-oligosaccharyltransferase-from-campylobacter-jejuni
#11
Yasmin Barre, Harald Nothaft, Cody Thomas, Xin Liu, Jianjun Li, Kenneth K S Ng, Christine M Szymanski
In Campylobacter jejuni, the PglB oligosaccharyltransferase catalyzes the transfer of a heptasaccharide from a lipid donor to asparagine within the D/E-X1-N-X2-S/T sequon (X1,2 ≠ P) or releases this heptasaccharide as free oligosaccharides (fOS). Using available crystal structures and sequence alignments, we identified a DGGK motif near the active site of PglB that is conserved among all Campylobacter species. We demonstrate that amino acid substitutions in the aspartate and lysine residues result in loss of protein glycosylation in the heterologous Escherichia coli system...
October 1, 2017: Glycobiology
https://www.readbyqxmd.com/read/28922704/direct-acting-antivirals-for-chronic-hepatitis-c
#12
REVIEW
Janus C Jakobsen, Emil Eik Nielsen, Joshua Feinberg, Kiran Kumar Katakam, Kristina Fobian, Goran Hauser, Goran Poropat, Snezana Djurisic, Karl Heinz Weiss, Milica Bjelakovic, Goran Bjelakovic, Sarah Louise Klingenberg, Jian Ping Liu, Dimitrinka Nikolova, Ronald L Koretz, Christian Gluud
BACKGROUND: Millions of people worldwide suffer from hepatitis C, which can lead to severe liver disease, liver cancer, and death. Direct-acting antivirals (DAAs), e.g. sofosbuvir, are relatively new and expensive interventions for chronic hepatitis C, and preliminary results suggest that DAAs may eradicate hepatitis C virus (HCV) from the blood (sustained virological response). Sustained virological response (SVR) is used by investigators and regulatory agencies as a surrogate outcome for morbidity and mortality, based solely on observational evidence...
September 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28922694/a-novel-c-240_241insgg-mutation-in-ndp-gene-in-a-family-with-norrie-disease
#13
Monavvar Andarva, Javad Jamshidi, Hamid Ghaedi, Narsis Daftarian, Babak Emamalizadeh, Elham Alehabib, Shaghyegh Taghavi, Ramin Pouriran, Hossein Darvish
BACKGROUND: Norrie disease (ND) is a rare, X-linked recessive disorder with the main characteristic of early childhood blindness. The aim of the present study was to identify the genetic cause of the disease and the phenotypic characteristics of the patients in an Iranian family with four affected males with ND. METHODS: Norrie disease pseudoglioma (NDP) gene was sequenced and clinical examination was performed on patients. RESULTS: A GG dinucleotide insertion in exon 3 (c...
September 18, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28922660/mitochondrial-dysfunction-and-altered-renal-metabolism-in-dahl-salt-sensitive-rats
#14
Zhengjun Wang, Qiong Sun, Na Sun, Mingyu Liang, Zhongmin Tian
BACKGROUND/AIMS: The kidney plays a critical role in the control of blood pressure and its elevation in salt-induced hypertension. Mitochondrial dysfunction, especially in energy metabolism, has been associated with hypertension. Here, we aimed to investigate mitochondrial function and metabolic features in renal mitochondria of Dahl salt-sensitive (SS) rats to gain further insight into the relationship between mitochondrial metabolism and predisposition to hypertension. METHODS: In this study, SS rats fed low-salt (LS) or high-salt (HS) diets were used to investigate mitochondrial function and metabolism including mitochondrial enzyme activities, pyridine nucleotides, metabolites, and oxidative stress by biochemical analysis and gas chromatography-mass spectrometer (GC-MS)...
September 19, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28922655/zymosan-a-protects-the-hematopoietic-system-from-radiation-induced-damage-by-targeting-tlr2-signaling-pathway
#15
Jicong Du, Ying Cheng, Suhe Dong, Pei Zhang, Jiaming Guo, Jiaqi Han, Fu Gao, Hainan Zhao, Ding Sun, Jianguo Cui, Jianming Cai, Cong Liu
BACKGROUND/AIMS: The hematopoietic system is vulnerable to ionizing radiation and is often severely damaged by radiation. Molecules affecting radioresistance include Toll-like receptor 2. We investigated whether Zymosan-A, a novel TLR2 agonist, can protect the hematopoietic system from radiation-induced damage after total body irradiation. METHODS: Mice were exposed to total body radiation after treatment with Zymosan-A or normal saline, and their survival was recorded...
September 1, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28922651/evaluating-the-effect-of-smoking-cessation-treatment-on-a-complex-dynamical-system
#16
Korkut Bekiroglu, Michael A Russell, Constantino M Lagoa, Stephanie T Lanza, Megan E Piper
OBJECTIVE: To understand the dynamic relations among tobacco withdrawal symptoms to inform the development of effective smoking cessation treatments. Dynamical system models from control engineering are introduced and utilized to evaluate complex treatment effects. We demonstrate how dynamical models can be used to examine how distinct withdrawal-related processes are related over time and how treatment influences these relations. METHOD: Intensive longitudinal data from a randomized placebo-controlled smoking cessation trial (N=1504) are used to estimate a dynamical model of withdrawal-related processes including momentary craving, negative affect, quitting self-efficacy, and cessation fatigue for each of six treatment conditions (nicotine patch, nicotine lozenge, bupropion, patch + lozenge, bupropion + lozenge, and placebo)...
August 25, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28922645/spectrophotometric-determination-of-fluoxetine-by-molecularly-imprinted-polypyrrole-and-optimization-by-experimental-design-artificial-neural-network-and-genetic-algorithm
#17
Azizollah Nezhadali, Maryam Omidvar Motlagh, Samira Sadeghzadeh
A selective method based on molecularly imprinted polymer (MIP) solid-phase extraction (SPE) using UV-Vis spectrophotometry as a detection technique was developed for the determination of fluoxetine (FLU) in pharmaceutical and human serum samples. The MIPs were synthesized using pyrrole as a functional monomer in the presence of FLU as a template molecule. The factors that affecting the preparation and extraction ability of MIP such as amount of sorbent, initiator concentration, the amount of monomer to template ratio, uptake shaking rate, uptake time, washing buffer pH, take shaking rate, Taking time and polymerization time were considered for optimization...
September 13, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28922631/surface-modification-of-platelet-concentrate-bags-to-reduce-biofilm-formation-and-transfusion-sepsis
#18
Joels S T Wilson-Nieuwenhuis, Nina Dempsey-Hibbert, Christopher M Liauw, Kathryn A Whitehead
Bacterial contamination of blood products poses a major risk in transfusion medicine, including transfusions involving platelet products. Although testing systems are in place for routine screening of platelet units, the formation of bacterial biofilms in such units may decrease the likelihood that bacteria will be detected. This work determined the surface properties of p-PVC platelet concentrate bags and investigated how these characteristics influenced biofilm formation. Serratia marcescens and Staphylococcus epidermidis, two species commonly implicated in platelet contamination, were used to study biofilm growth...
September 7, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28922622/light-signaling-differentially-regulates-the-expression-of-group-iv-of-the-b-box-zinc-finger-family
#19
Xinyu Zhang, Rongcheng Lin
Light is an important external signal that affects plant growth and development, such as photomorphogenesis. Transcriptional regulation defines a central regulatory mechanism in photomorphogenesis. The B-box zinc finger family consists of 32 proteins in Arabidopsis thaliana. Previous studies show that group IV of the B-box family (BBX18 to BBX25) plays either positive or negative roles in regulating photomorphogenesis. We investigated the expression patterns of BBX18 to BBX25 and the results demonstrate that the transcriptional levels of these genes are differentially regulated by the light signaling pathway...
September 18, 2017: Plant Signaling & Behavior
https://www.readbyqxmd.com/read/28922618/an-electromagnetic-system-for-inducing-a-localized-force-gradient-in-an-ecm-and-its-influence-on-hmvec-sprouting
#20
Hian Hian See, Sahan C B Herath, Rerngchai Arayanarakool, Yue Du, Evan Tan, Ruowen Ge, Harry Asada, Peter C Y Chen
Mechanical properties of the extracellular matrix (ECM) have been observed to influence the behavior of cells. Investigations on such an influence commonly rely on using soluble cues to alter the global intrinsic ECM properties in order to study the subsequent response of cells. This article presents an electromagnetic system for inducing a localized force gradient in an ECM, and reports the experimentally observed effect of such a force gradient on in vitro angiogenic sprouting of human microvascular endothelial cells (HMVECs)...
September 1, 2017: SLAS Technology
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