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https://www.readbyqxmd.com/read/28214626/green-synthesis-of-a-novel-flower-like-cerium-vanadate-microstructure-for-electrochemical-detection-of-tryptophan-in-food-and-biological-samples
#1
J Vinoth Kumar, R Karthik, Shen-Ming Chen, S Marikkani, A Elangovan, V Muthuraj
In this present investigation, we introduced a novel electrochemical sensor for the detection of tryptophan (TRP) based on green pompoms flower-like cerium vanadate (CeVO4). The flower-like CeVO4 microstructure was prepared by the simple hydrothermal treatment with the assistance of urea for the first time. The as-prepared flower-like CeVO4 microstructure was characterized by various analytical and spectroscopic techniques such as X-ray diffraction, Raman spectroscopy fourier transform infrared spectroscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy studies...
February 9, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28208805/defense-responses-in-grapevine-cv-mourv%C3%A3-dre-after-inoculation-with-the-botryosphaeria-dieback-pathogens-neofusicoccum-parvum-and-diplodia-seriata-and-their-relationship-with-flowering
#2
Alessandro Spagnolo, Vincenzo Mondello, Philippe Larignon, Sandra Villaume, Fanja Rabenoelina, Christophe Clément, Florence Fontaine
As a result of the increasing economic impact of grapevine trunk diseases on viticulture worldwide, efficient and viable control strategies are urgently needed. However, understanding both plant-pathogen interactions and plant physiological changes related to these diseases is fundamental to such an achievement. In this study, we analyzed the effect of inoculation with the Botryosphaeria dieback fungal agents, Neofusicoccum parvum and Diplodia seriata, with and without inflorescence removal at the onset of G stage (separated clusters), I stage (flowering) and M stage (veraison)...
February 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28207889/genetic-variation-of-maturity-groups-and-four-e-genes-in-the-chinese-soybean-mini-core-collection
#3
Jicun Li, Xiaobo Wang, Wenwen Song, Xinyang Huang, Jing Zhou, Haiyan Zeng, Shi Sun, Hongchang Jia, Wenbin Li, Xinan Zhou, Suzhen Li, Pengyin Chen, Cunxiang Wu, Yong Guo, Tianfu Han, Lijuan Qiu
The mini core collection (MCC) has been established by streamlining core collection (CC) chosen from China National Genebank including 23,587 soybean (Glycine max) accessions by morphological traits and simple sequence repeat (SSR) markers. Few studies have been focused on the maturity that has been considered as one of the most critical traits for the determination of the adaptation-growing region of the soybean. In the current study, two hundred and ninty-nine accessions of MCC planted for two years at four locations namely in Heihe, Harbin, Jining and Wuhan cities in China were used to assess the variation of maturity in MCC and identify the integrated effect of 4 E loci on flowering and maturity time in soybean...
2017: PloS One
https://www.readbyqxmd.com/read/28207408/evaluation-of-cannabinoids-concentration-and-stability-in-standardized-preparations-of-cannabis-tea-and-cannabis-oil-by-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry
#4
Roberta Pacifici, Emilia Marchei, Francesco Salvatore, Luca Guandalini, Francesco Paolo Busardò, Simona Pichini
BACKGROUND: Cannabis has been used since ancient times to relieve neuropathic pain, to lower intraocular pressure, to increase appetite and finally to decrease nausea and vomiting. The combination of the psychoactive cannabis alkaloid Δ9-tetrahydrocannabinol (THC) with the non-psychotropic alkaloids cannabidiol (CBD) and cannabinol (CBN) demonstrated a higher activity than THC alone. The Italian National Institute of Health sought to establish conditions and indications on how to correctly use nationally produced cannabis to guarantee therapeutic continuity in individuals treated with medical cannabis...
February 16, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28204655/chemical-control-of-flowering-time
#5
Irina Alexandra Ionescu, Birger Lindberg Møller, Raquel Sánchez-Pérez
No abstract text is available yet for this article.
January 1, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28203250/the-effects-of-punica-granatum-flower-extract-on-skin-injuries-induced-by-burn-in-rats
#6
Ebrahim Nasiri, Seyed Jalal Hosseinimehr, Jafar Akbari, Mohammad Azadbakht, Soheil Azizi
Background. We compared the efficacy of P. granatum (P) flower extract with that of silver sulfadiazine (SSD) for treating thermal burn injuries in rats. Methods. Ten Wistar rats in each group were topically given base cream, normal saline, cream containing 1% SSD, or creams containing 5% or 10% Punica granatum flower extract. The treatments were administered once daily until complete wound healing was observed. The wound area and healing time were assessed. In addition, percentage wound contraction and histopathological characteristics such as neovascularization and collagen formation were determined...
2017: Advances in Pharmacological Sciences
https://www.readbyqxmd.com/read/28202598/early-flowering-3-redundancy-fine-tunes-photoperiod-sensitivity
#7
Andrew J S Rubenach, Valerie Fg Hecht, Jacqueline K Vander Schoor, Lim Chee Liew, Gregoire Aubert, Judith Burstin, James L Weller
Three pea loci controlling photoperiod sensitivity, HIGH RESPONSE (HR), DIE NEUTRALIS (DNE) and STERILE NODES (SN) have recently been shown to correspond to orthologs of Arabidopsis circadian clock genes EARLY FLOWERING3 (ELF3), ELF4, and LUX ARRHYTHMO, respectively. A fourth pea locus, PHOTOPERIOD (PPD), also contributes to the photoperiod response in a similar manner to SN and DNE, and recessive ppd mutants on a spring-flowering hr mutant background show early, photoperiod-insensitive flowering. However, the molecular identity of PPD has so far remained elusive...
February 15, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28202454/pollinator-mediated-interactions-in-experimental-arrays-vary-with-neighbor-identity
#8
Melissa K Ha, Christopher T Ivey
PREMISE OF THE STUDY: Local ecological conditions influence the impact of species interactions on evolution and community structure. We investigated whether pollinator-mediated interactions between coflowering plants vary with plant density, coflowering neighbor identity, and flowering season. METHODS: We conducted a field experiment in which flowering time and floral neighborhood were manipulated in a factorial design. Early- and late-flowering Clarkia unguiculata plants were placed into arrays with C...
February 15, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28199916/isolation-of-four-phenolic-compounds-from-mangifera-indica-l-flowers-by-using-normal-phase-combined-with-elution-extrusion-two-step-high-speed-countercurrent-chromatography
#9
Nusrat Shaheen, Yanzhen Lu, Ping Geng, Qian Shao, Yun Wei
Two-step high speed countercurrent chromatography method, following normal phase and elution-extrusion mode of operation by using selected solvent systems, was introduced for phenolic compounds separation. Phenolic compounds including gallic acid, ethyl gallate, ethyl digallate and ellagic acid were separated from the ethanol extract of mango (Mangifera indica L.) flowers for the first time. In the first step, gallic acid of 3.7mg and ethyl gallate of 3.9mg with the purities of 98.87% and 99.55%, respectively, were isolated by using hexane-ethylacetate-methanol-water (4:6:4:6, v/v) in normal phase high speed countercurrent chromatography from 200mg of crude extract, while ethyl digallate and ellagic acid were collected in the form of mixture fraction...
January 15, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28199152/can-radiologists-predict-the-presence-of-ductal-carcinoma-in-situ-and-invasive-breast-cancer
#10
Shadi Aminololama-Shakeri, Chris I Flowers, Christine E McLaren, Dorota J Wisner, Jade de Guzman, Joan E Campbell, Lawrence W Bassett, Haydee Ojeda-Fournier, Karen Gerlach, Jonathan Hargreaves, Sarah L Elson, Hanna Retallack, Bonnie N Joe, Stephen A Feig, Colin J Wells
OBJECTIVE: We hypothesize that radiologists' estimated percentage likelihood assessments for the presence of ductal carcinoma in situ (DCIS) and invasive cancer may predict histologic outcomes. MATERIALS AND METHODS: Two hundred fifty cases categorized as BI-RADS category 4 or 5 at four University of California Medical Centers were retrospectively reviewed by 10 academic radiologists with a range of 1-39 years in practice. Readers assigned BI-RADS category (1, 2, 3, 4a, 4b, 4c, or 5), estimated percentage likelihood of DCIS or invasive cancer (0-100%), and confidence rating (1 = low, 5 = high) after reviewing screening and diagnostic mammograms and ultrasound images...
February 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28198676/global-transcriptome-analysis-reveals-extensive-gene-remodeling-alternative-splicing-and-differential-transcription-profiles-in-non-seed-vascular-plant-selaginella-moellendorffii
#11
Yan Zhu, Longxian Chen, Chengjun Zhang, Pei Hao, Xinyun Jing, Xuan Li
BACKGROUND: Selaginella moellendorffii, a lycophyte, is a model plant to study the early evolution and development of vascular plants. As the first and only sequenced lycophyte to date, the genome of S. moellendorffii revealed many conserved genes and pathways, as well as specialized genes different from flowering plants. Despite the progress made, little is known about long noncoding RNAs (lncRNA) and the alternative splicing (AS) of coding genes in S. moellendorffii. Its coding gene models have not been fully validated with transcriptome data...
January 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28193510/in-situ-growth-of-au-and-%C3%AE-bi2o3-nanoparticles-on-flower-like-bi2o2co3-a-multi-heterojunction-photocatalyst-with-enhanced-visible-light-responsive-photocatalytic-activity
#12
Peifang Wang, Liya Xu, Yanhui Ao, Chao Wang
In this work, flower-like Au/Bi2O2CO3/Bi2O3 multi-heterojunction photocatalysts were prepared by a in-situ growth method. The as-prepared samples were characterized by different techniques including Transmission Electron Microscopy (TEM), X-ray diffraction (XRD), UV-vis diffuse reflectance spectrometry (DRS), X-ray photoelectron spectroscopy (XPS), Photoluminescence (PL) and photo-induced current. The photocatalytic performance of the as prepared samples was evaluated by degradation of rhodamine B (RhB) under visible light (λ>400nm)...
February 7, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28190594/separation-of-betacyanins-from-purple-flowers-of-gomphrena-globosa-l-by-ion-pair-high-speed-counter-current-chromatography
#13
Aneta Spórna-Kucab, Joanna Jagodzińska, Sławomir Wybraniec
Betacyanins, known as antioxidants and chemopreventive natural compounds with colourful properties, were extracted from purple flowers of Gomphrena globosa L. belonging to the Amaranthaceae family and separated for the first time by ion-pair high-speed counter-current chromatography (HSCCC). The pigments were detected by LC-DAD-ESI-MS/MS technique. Separation of betacyanins (300mg) by HSCCC was accomplished in four solvent systems: tert-butyl methyl ether - butanol - acetonitrile - water (0.7% and 1.0% HFBA - heptafluorobutyric acid - system I and III) and tert-butyl methyl ether - butanol - methanol - water (0...
January 25, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28188819/potential-short-term-neurobehavioral-alterations-in-children-associated-with-a-peak-pesticide-spray-season-the-mother-s-day-flower-harvest-in-ecuador
#14
Jose R Suarez-Lopez, Harvey Checkoway, David R Jacobs, Wael K Al-Delaimy, Sheila Gahagan
BACKGROUND: Exposures to cholinesterase inhibitor pesticides (e.g. organophosphates) have been associated with children's neurobehavioral alterations, including attention deficit and impulsivity. Animal studies have observed transient alterations in neurobehavioral performance in relation to cholinesterase inhibitor pesticide exposures; however, limited evidence exists regarding transient effects in humans. METHODS: We estimated the associations between neurobehavioral performance and time after Mother's Day flower harvest (the end of a heightened pesticide usage period) among 308 4-to 9-year-old children living in floricultural communities in Ecuador in 2008 who participated in the ESPINA study...
February 7, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28187719/promotion-of-hepg2-cell-apoptosis-by-flower-of-allium-atroviolaceum-and-the-mechanism-of-action
#15
S Khazaei, R Abdul Hamid, N Mohd Esa, V Ramachandran, Ghomi Tabatabaee F Aalam, A Etemad, P Ismail
BACKGROUND: Liver cancer is a high incidence and fatal disease, the fifth most frequent cancer worldwide that is usually diagnosed at an advanced stage. The number of deaths from liver cancer has not declined even following various therapies. Plant secondary metabolites and their semi-synthetic derivatives play a principal role in anti-cancer drug therapy, since they are effective in the treatment of specific characteristics while also reducing side effects. Allium atroviolaceum, a plant of the genus Allium has been used in folk medicine to protect against several diseases...
February 10, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28185948/unpacking-boxes-integration-of-molecular-morphological-and-ecological-approaches-reveals-extensive-patterns-of-reticulate-evolution-in-the-box-eucalypts
#16
Flores-Rentería Lluvia, Rymer Paul, Riegler Markus
Reticulate evolution by hybridization is considered a common process shaping the evolution of many plant species, however, reticulation could also be due to incomplete lineage sorting in biodiverse systems. For our study we selected a group of closely related plant taxa with contrasting yet partially overlapping geographic distributions and different population sizes, to distinguish between reticulated patterns due to hybridization and incomplete lineage sorting. We predicted that sympatric or proximal populations of different species are more likely to have gene flow than geographically distant populations of the same widespread species...
February 6, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28185374/estimating-the-ability-of-plants-to-plastically-track-temperature-mediated-shifts-in-the-spring-phenological-optimum
#17
Christine J Tansey, Jarrod D Hadfield, Albert B Phillimore
One consequence of rising spring temperatures is that the optimum timing of key life-history events may advance. Where this is the case, a population's fate may depend on the degree to which it is able to track a change in the optimum timing either via plasticity or via adaptation. Estimating the effect that temperature change will have on optimum timing using standard approaches is logistically challenging, with the result that very few estimates of this important parameter exist. Here we adopt an alternative statistical method that substitutes space for time to estimate the temperature sensitivity of the optimum timing of 22 plant species based on >200 000 spatiotemporal phenological observations from across the United Kingdom...
February 10, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28185293/assessing-frost-damages-using-dynamic-models-in-walnut-trees-exposure-rather-than-vulnerability-controls-frost-risks
#18
Guillaume Charrier, Isabelle Chuine, Marc Bonhomme, Thierry Améglio
Frost damages develop when exposure overtakes frost vulnerability. Frost risk assessment therefore needs dynamic simulation of frost hardiness using temperature and photoperiod in interaction with developmental stage. Two models, including or not the effect of photoperiod were calibrated using five years of frost hardiness monitoring (2007-2012), in two locations (low and high elevation) for three walnut genotypes with contrasted phenology and maximum hardiness (Juglans regia cv Franquette, Juglans regia x nigra 'Early' and 'Late')...
February 9, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28184381/a-multicenter-longitudinal-interventional-double-blind-randomized-clinical-trial-in-hematopoietic-cell-transplant-recipients-residing-in-remote-areas-lessons-learned-from-the-late-cytomegalovirus-prevention-trial
#19
Louise E Kimball, Terry Stevens-Ayers, Margaret L Green, Hu Xie, Mary E D Flowers, Keith R Jerome, Renee LeBlanc, Christi Dahlgren, W Garrett Nichols, Roy F Chemaly, G Papanicolaou, Michael Boeckh
PURPOSE: The logistics of conducting double-blinded phase III clinical trials with participants residing in remote locations are complex. Here we describe the implementation of an interventional trial for the prevention of late cytomegalovirus (CMV) disease in hematopoietic cell transplantation (HCT) subjects in a long-term follow-up environment. METHODS: A total of 184 subjects at risk for late CMV disease surviving 80 days following allogeneic HCT were randomized to receive six months of valganciclovir or placebo...
December 15, 2016: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/28181519/on-the-post-glacial-spread-of-human-commensal-arabidopsis-thaliana
#20
Cheng-Ruei Lee, Hannes Svardal, Ashley Farlow, Moises Exposito-Alonso, Wei Ding, Polina Novikova, Carlos Alonso-Blanco, Detlef Weigel, Magnus Nordborg
Recent work has shown that Arabidopsis thaliana contains genetic groups originating from different ice age refugia, with one particular group comprising over 95% of the current worldwide population. In Europe, relicts of other groups can be found in local populations along the Mediterranean Sea. Here we provide evidence that these 'relicts' occupied post-glacial Eurasia first and were later replaced by the invading 'non-relicts', which expanded through the east-west axis of Eurasia, leaving traces of admixture in the north and south of the species range...
February 9, 2017: Nature Communications
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