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https://www.readbyqxmd.com/read/28524071/flexible-low-cost-sensor-based-on-electrolyte-gated-carbon-nanotube-field-effect-transistor-for-organo-phosphate-detection
#1
Vijay Deep Bhatt, Saumya Joshi, Markus Becherer, Paolo Lugli
A flexible enzymatic acetylcholinesterase biosensor based on an electrolyte-gated carbon nanotube field effect transistor is demonstrated. The enzyme immobilization is done on a planar gold gate electrode using 3-mercapto propionic acid as the linker molecule. The sensor showed good sensing capability as a sensor for the neurotransmitter acetylcholine, with a sensitivity of 5.7 μA/decade, and demonstrated excellent specificity when tested against interfering analytes present in the body. As the flexible sensor is supposed to suffer mechanical deformations, the endurance of the sensor was measured by putting it under extensive mechanical stress...
May 18, 2017: Sensors
https://www.readbyqxmd.com/read/28523823/cost-benefit-analysis-of-controlling-the-spotted-wing-drosophila-drosophila-suzukii-matsumura-spread-and-infestation-of-soft-fruits-in-trentino-northern-italy
#2
Emanuele Del Fava, Claudio Ioriatti, Alessia Melegaro
BACKGROUND: We assessed the economic impact of the invasive pest Drosophila suzukii (Matsumura) on the soft fruit industry (strawberries, raspberries, blackberries, and blueberries) in Trentino, Northern Italy, using cost-benefit analysis. A conventional integrated pest management (IPM) based on insecticide, mass trapping and cultural measures is compared to an upgraded IPM strategy based on exclusion netting. Costs and benefits associated with the change between the two are estimated in order to evaluate the most profitable strategy from the societal point of view...
May 19, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28523731/wble2-transcription-factor-in-streptomyces-griseus-s4-7-plays-an-important-role-in-plant-protection
#3
Hyun Ji Cho, Young Sang Kwon, Da-Ran Kim, Gyeongjun Cho, Seong Won Hong, Dong-Won Bae, Youn-Sig Kwak
Streptomyces griseus S4-7 was originally isolated from the strawberry rhizosphere as a microbial agent responsible for Fusarium wilt suppressive soils. S. griseus S4-7 shows specific and pronounced antifungal activity against Fusarium oxysporum f. sp. fragariae. In the Streptomyces genus, the whi transcription factors are regulators of sporulation, cell differentiation, septation, and secondary metabolites production. wblE2 function as a regulator has emerged as a new group in whi transcription factors. In this study, we reveal the involvement of the wblE2 transcription factor in the plant-protection by S...
May 19, 2017: MicrobiologyOpen
https://www.readbyqxmd.com/read/28499415/discrimination-of-candidate-subgenome-specific-loci-by-linkage-map-construction-with-an-s1-population-of-octoploid-strawberry-fragaria%C3%A2-%C3%A3-%C3%A2-ananassa
#4
Soichiro Nagano, Kenta Shirasawa, Hideki Hirakawa, Fumi Maeda, Masami Ishikawa, Sachiko N Isobe
BACKGROUND: The strawberry, Fragaria × ananassa, is an allo-octoploid (2n = 8x = 56) and outcrossing species. Although it is the most widely consumed berry crop in the world, its complex genome structure has hindered its genetic and genomic analysis, and thus discrimination of subgenome-specific loci among the homoeologous chromosomes is needed. In the present study, we identified candidate subgenome-specific single nucleotide polymorphism (SNP) and simple sequence repeat (SSR) loci, and constructed a linkage map using an S1 mapping population of the cultivar 'Reikou' with an IStraw90 Axiom® SNP array and previously published SSR markers...
May 12, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28496992/flavored-little-cigar-smoke-induces-cytotoxicity-and-apoptosis-in-airway-epithelia
#5
Arunava Ghosh, Rachel C Nethery, Amy H Herring, Robert Tarran
Addition of flavors reduces the harsh taste of tobacco, facilitating the initiation and maintenance of addiction among youths. Flavored cigarettes (except menthol) are now banned. However, the legislation on little cigars remains unclear and flavored little cigars are currently available for purchase. Since inhaled tobacco smoke directly exerts toxic effects on the lungs, we tested whether non-flavored and flavored little cigar smoke exposure had the potential for harm in cultured pulmonary epithelia. We cultured Calu-3 lung epithelia on both 96-well plates and at the air-liquid interface and exposed them to smoke from non-flavored Swisher Sweets and flavored (sweet cherry, grape, menthol, peach and strawberry) Swisher Sweets little cigars...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28496438/identification-of-cleavage-sites-recognized-by-the-3c-like-cysteine-protease-within-the-two-polyproteins-of-strawberry-mottle-virus
#6
Krin S Mann, Melanie Walker, Hélène Sanfaçon
Strawberry mottle virus (SMoV, family Secoviridae, order Picornavirales) is one of several viruses found in association with strawberry decline disease in Eastern Canada. The SMoV genome consists of two positive-sense single-stranded RNAs, each encoding one large polyprotein. The RNA1 polyprotein (P1) includes the domains for a putative helicase, a VPg, a 3C-like cysteine protease and an RNA-dependent RNA polymerase at its C-terminus, and one or two protein domains at its N-terminus. The RNA2 polyprotein (P2) is predicted to contain the domains for a movement protein (MP) and one or several coat proteins at its N-terminus, and one or more additional domains for proteins of unknown function at its C-terminus...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28491071/exploring-blueberry-aroma-complexity-by-chromatographic-and-direct-injection-spectrometric-techniques
#7
Brian Farneti, Iuliia Khomenko, Marcella Grisenti, Matteo Ajelli, Emanuela Betta, Alberto Alarcon Algarra, Luca Cappellin, Eugenio Aprea, Flavia Gasperi, Franco Biasioli, Lara Giongo
Blueberry (Vaccinium spp.) fruit consumption has increased over the last 5 years, becoming the second most important soft fruit species after strawberry. Despite the possible economic and sensory impact, the blueberry volatile organic compound (VOC) composition has been poorly investigated. Thus, the great impact of the aroma on fruit marketability stimulates the need to step forward in the understanding of this quality trait. Beside the strong effect of ripening, blueberry aroma profile also varies due to the broad genetic differences among Vaccinium species that have been differently introgressed in modern commercial cultivars through breeding activity...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28487861/genome-wide-identification-of-bzip-family-genes-involved-in-drought-and-heat-stresses-in-strawberry-fragaria-vesca
#8
Xiao-Long Wang, Xinlu Chen, Tian-Bao Yang, Qunkang Cheng, Zong-Ming Cheng
Basic leucine zipper (bZIP) genes are known to play a crucial role in response to various processes in plant as well as abiotic or biotic stress challenges. We have performed an identification and characterization of 50 bZIP genes across the woodland strawberry (Fragaria vesca) genome, which were divided into 10 clades according to the phylogenetic relationship of the strawberry bZIP proteins with those in Arabidopsis and rice. Five categories of intron patterns were observed within basic and hinge regions of the bZIP domains...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28486803/study-of-volatile-compounds-of-virgin-olive-oils-with-frostbitten-olives-sensory-defect
#9
Inmaculada Romero, Diego Luis Garcia-Gonzalez, Ramon Aparicio-Ruiz, Maria Teresa Morales
The freeze injuries in olives are responsible for the 'frostbitten olives' sensory defect that is sometimes detected in virgin olive oil. This defect is becoming one of the most common negative attributes today because the climate change has modified the weather patterns. The temperature changes can take place abruptly, with rapid freeze-thaw cycles, or gradually. These changes produce significant alterations in the quality of the oils. This study analyzed the volatile composition of virgin olive oils characterized with 'frostbitten olives' defect...
May 10, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28475120/protective-effect-of-fragaria-ananassa-crude-extract-on-cadmium-induced-lipid-peroxidation-antioxidant-enzymes-suppression-and-apoptosis-in-rat-testes
#10
Mohammed I Y Elmallah, Manal F Elkhadragy, Ebtesam M Al-Olayan, Ahmed E Abdel Moneim
Cadmium is a deleterious environmental pollutant that threats both animals and human health. Oxidative stress and elevated levels of reactive oxygen species (ROS) have recently been reported to be the main cause of cellular damage as a result of cadmium exposure. We investigate, here, the protective effect of strawberry crude extracts on cadmium-induced oxidative damage of testes in rats. Four groups (n = 8) of 32 adult male Wistar rats weighing 160-180 g were used. The control group received 0.9% saline solution all over the experimental period (5 days)...
May 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28460962/metabolic-profiling-discriminates-between-strawberry-fragaria%C3%A3-ananassa-duch-cultivars-grown-in-finland-or-estonia
#11
Anna Kårlund, Ulvi Moor, Gordon McDougall, Marko Lehtonen, Reijo O Karjalainen, Kati Hanhineva
Metabolic profiling analysis with LC-ESI-QTOF-MS was utilized to separate and identify 186 putative major metabolites demonstrating significantly different levels in 15 strawberry cultivars grown in Finland or Estonia. Principal component analysis showed close clustering of genetically related samples grown in Estonia, and hierarchical cluster analyses highlighted differences and similarities in their metabolic profiles driving separation between cultivars with specific metabolic phenotypes. Phenolic acids, flavonoids, flavan-3-ol derivatives, terpenes, and many types of glycosidically bound aroma and flavor precursors showed clear variation between strawberry cultivars...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28453174/selection-of-strawberry-cultivars-with-tolerance-to-tetranychus-urticae-acari-tetranychidae-and-high-yield-under-different-managements
#12
A F Costa, P E Teodoro, L L Bhering, M J Fornazier, J S Andrade, D S Martins, J S Zanuncio Junior
Tetranychus urticae Koch (Acari: Tetranychidae) is considered the main pest of strawberry. Several factors can favor its development, among them the genotype susceptibility and cropping system. The aims of this study were to evaluate the agronomic performance of strawberry cultivars under different managements and to identify strawberry cultivars that meet tolerance to T. urticae and high fruit yield. Thirteen cultivars of strawberry ('Albion', 'Aleluia', 'Aromas', 'Camarosa', 'Camino Real', 'Campinas', 'Diamante', 'Dover', 'Festival', 'Seascape', 'Toyonoka', 'Tudla', and 'Ventana') under three managements (open field, low tunnel, and high tunnel) were evaluated...
April 28, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28452009/detection-of-potential-infectious-enteric-viruses-in-fresh-produce-by-rt-qpcr-preceded-by-nuclease-treatment
#13
Elisabet Marti, Monique Ferrary-Américo, Célia Regina Monte Barardi
Foodborne illnesses associated with contaminated fresh produce are a common public health problem and there is an upward trend of outbreaks caused by enteric viruses, especially human noroviruses (HNoVs) and hepatitis A virus (HAV). This study aimed to assess the use of DNase and RNase coupled to qPCR and RT-qPCR, respectively, to detect intact particles of human adenoviruses (HAdVs), HNoV GI and GII and HAV in fresh produce. Different concentrations of DNase and RNase were tested to optimize the degradation of free DNA and RNA from inactivated HAdV and murine norovirus (MNV), respectively...
April 27, 2017: Food and Environmental Virology
https://www.readbyqxmd.com/read/28448788/production-of-biogas-from-co-digestion-of-livestock-and-agricultural-residues-a-case-study
#14
Brahim Arhoun, Cesar Gomez-Lahoz, Roberto Teofilo Abdala-Diaz, Jose Miguel Rodriguez-Maroto, Francisco Garcia-Herruzo, Carlos Vereda-Alonso
This study was undertaken to determine the possible changes in the digester yield and performance for the anaerobic co-digestion under mesophilic conditions of strawberry residues (SRs) together with pig manure (PM). The first part of this paper deals with the digestion of SR as a single substrate. For organic loading rates (OLRs) of 4.4 (g L(-1) d(-1)) or less, the experimental specific biogas and methane productions are 0.588 and 0.231 L g(-1), respectively. When higher OLRs (5.5 g L(-1) d(-1)) are used the digester fails due to acidification...
April 27, 2017: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/28448690/evaluation-of-column-length-and-particle-size-effect-on-the-untargeted-profiling-of-a-phytochemical-mixture-by-using-uhplc-coupled-to-high-resolution-mass-spectrometry
#15
Riccardo Zenezini Chiozzi, Anna Laura Capriotti, Chiara Cavaliere, Francesca Ferraris, Giorgia La Barbera, Susy Piovesana, Aldo Laganà
Liquid chromatography coupled to high-resolution mass spectrometry is the technique of choice for the untargeted profiling of food matrices. Despite the high potential of high-resolution mass spectrometry, when dealing with complex mixtures, an efficient separation technique is also needed. The novel core-shell chromatographic columns packed with sub-2 μm sized particles are claimed to show very good resolution. However, the analytes retention can be significantly altered when working under ultra-high performance chromatographic conditions...
April 27, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28444444/bioinformatic-and-expression-analyses-on-carotenoid-dioxygenase-genes-in-fruit-development-and-abiotic-stress-responses-in-fragaria-vesca
#16
Yong Wang, Guanqun Ding, Tingting Gu, Jing Ding, Yi Li
Carotenoid dioxygenases, including 9-cis-epoxycarotenoid dioxygenases (NCEDs) and carotenoid cleavage dioxygenases (CCDs), can selectively cleave carotenoids into various apocarotenoid products that play important roles in fleshy fruit development and abiotic stress response. In this study, we identified 12 carotenoid dioxygenase genes in diploid strawberry Fragaria vesca, and explored their evolution with orthologous genes from nine other species. Phylogenetic analyses suggested that the NCED and CCDL groups moderately expanded during their evolution, whereas gene numbers of the CCD1, CCD4, CCD7, and CCD8 groups maintained conserved...
April 25, 2017: Molecular Genetics and Genomics: MGG
https://www.readbyqxmd.com/read/28443106/over-expression-of-ejlfy-1-leads-to-an-early-flowering-habit-in-strawberry-fragaria-%C3%A3-ananassa-and-its-asexual-progeny
#17
Yuexue Liu, Qian Zhao, Nan Meng, Huwei Song, Chaochao Li, Guibing Hu, Jincheng Wu, Shunquan Lin, Zhihong Zhang
As a master regulator involved in flower development, LEAFY-like gene has been demonstrated to play a key role in the flowering process regulation of angiosperms. Expression analysis of EjLFY-1, a LEAFY (LFY) homolog of loquat (Eriobotrya japonica Lindl.), indicated its participation in the regulation of flowering in loquat. To verify its function and potential value in the genetic engineering to shorten the juvenile phase, ectopic expression of EjLFY-1 in strawberry (Fragaria × ananassa) was achieved using Agrobacterium-mediated gene transfer of a plant expression vector with the loquat EjLFY-1 gene driven by the CaMV 35S promoter...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28432007/caloric-compensation-in-preschool-children-relationships-with-body-mass-and-differences-by-food-category
#18
S Carnell, L Benson, E L Gibson, L A Mais, S Warkentin
Maintaining a healthy weight may involve compensating for previously consumed calories at subsequent meals. To test whether heavier children demonstrated poorer caloric compensation across a range of conditions, and to explore whether compensation failure was the result of inadequate adjustment of overall intake or specific over-consumption of highly palatable, high energy-density 'junk' foods, we administered two compensation tests to a sample of 4-5 y olds. For Test A, preloads varied only in carbohydrate content and were organoleptically indistinguishable (200 ml orange-flavored beverage [0 kcal vs...
April 19, 2017: Appetite
https://www.readbyqxmd.com/read/28425932/validation-of-a-novel-technique-and-evaluation-of-the-surface-free-energy-of-food
#19
Tugce Senturk Parreidt, Markus Schmid, Carolin Hauser
Characterizing the physical properties of a surface is largely dependent on determining the contact angle exhibited by a liquid. Contact angles on the surfaces of rough and irregularly-shaped food samples are difficult to measure using a contact angle meter (goniometer). As a consequence, values for the surface energy and its components can be mismeasured. The aim of this work was to use a novel contact angle measurement method, namely the snake-based ImageJ program, to accurately measure the contact angles of rough and irregular shapes, such as food samples, and so enable more accurate calculation of the surface energy of food materials...
April 20, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28424530/molecular-diagnostic-assays-based-on-cpn60-ut-sequences-reveal-the-geographic-distribution-of-subgroup-16srxiii-a-i-i-phytoplasma-in-mexico
#20
Edel Pérez-López, Douglas Rodríguez-Martínez, Chrystel Y Olivier, Mauricio Luna-Rodríguez, Tim J Dumonceaux
Geographically diverse samples from strawberry exhibiting symptoms of Strawberry Green Petal (SbGP), periwinkle plants with virescence, and blackberry, blueberry, and raspberry plants displaying yellowing and inedible fruits, were assayed for the presence of phytoplasma DNA. PCR targeting the 16S rRNA-encoding gene and chaperonin-60 (cpn60) showed that the plants were infected with phytoplasma subgroup16SrXIII-(A/I)I (SbGP/MPV). To examine the geographic distribution of this pathogen in Mexico, we designed an array of cpn60-targeted molecular diagnostic assays for SbGP/MPV phytoplasma...
April 19, 2017: Scientific Reports
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