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https://www.readbyqxmd.com/read/29457695/functionalization-of-a-nanostructured-hydroxyapatite-with-copper-ii-compounds-as-pesticide-in-situ-tem-and-esem-observations-of-treated-vitis-vinifera-l-leaves
#1
Enrico Battiston, Maria C Salvatici, Alessandro Lavacchi, Antonietta Gatti, Stefano Di Marco, Laura Mugnai
BACKGROUND: The present study evaluates a biocompatible material for plant protection to reduce the amount of active substance applied. We used a synthetic hydroxyapatite (HA) that has been studied extensively due its bioactivity and biocompatibility. Aggregation between HA nanoparticles and four copper(II) compounds applied in Vitis vinifera L. leaves as pesticide was studied. Formulations were characterised by XRD, DLS, electron microscopy and applied in planta to verify the particle aggregation and efficiency in controlling the pathogen, Plasmopara viticola...
February 19, 2018: Pest Management Science
https://www.readbyqxmd.com/read/29454308/the-unique-evolutionary-pattern-of-the-hydroxyproline-rich-glycoproteins-superfamily-in-chinese-white-pear-pyrus-bretschneideri
#2
Huijun Jiao, Xing Liu, Shuguang Sun, Peng Wang, Xin Qiao, Jiaming Li, Chao Tang, Juyou Wu, Shaoling Zhang, Shutian Tao
BACKGROUND: The hydroxyproline-rich glycoprotein (HRGP) superfamily, comprising three families (arabinogalactan-proteins, AGPs; extensins, EXTs; proline-rich proteins, PRPs), is a class of proline-rich proteins that exhibit high diversity and are involved in many aspects of plant biology. RESULTS: In this study, 838 HRGPs were identified from Chinese white pear (Pyrus bretschneideri) by searching for biased amino acid composition and conserved motifs. 405 HRGPs were derived from whole genome duplication (WGD) events which is suggested to be the major force of driving HRGPs expansion and the recent WGD event shared by apple and pear generated most duplicated HRGPs in pear...
February 17, 2018: BMC Plant Biology
https://www.readbyqxmd.com/read/29453672/the-effect-of-n-3-pufas-on-circulating-adiponectin-and-leptin-in-patients-with-type-2-diabetes-mellitus-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#3
Azam Rezaei Farimani, Mitra Hariri, Mohsen Azimi-Nezhad, Abasalt Borji, Sadegh Zarei, Elham Hooshmand
AIM: N-3 PUFAs can potentially influence levels of inflammatory and non-inflammatory adipokines. Given the contradictory effects of n-3 PUFAs on serum levels of adipokines in type 2 diabetes, we conducted a systematic review and meta-analysis study of randomized placebo-controlled clinical trials that examined the effects of n-3 PUFAs on serum levels of leptin and adiponectin in patients with type 2 diabetes. METHODS: The electronic databases, without regard to language restrictions including PubMed/Medline, Google Scholar, SCOPUS and ISI Web of Science until August 2017, were used to identify randomized controlled trials that assessed the effect of n-3 PUFAs on serum leptin and adiponectin concentrations in type 2 diabetes...
February 16, 2018: Acta Diabetologica
https://www.readbyqxmd.com/read/29451871/environmental-heterogeneity-blurs-the-signature-of-dispersal-syndromes-on-spatial-patterns-of-woody-species-in-a-moist-tropical-forest
#4
Pablo Ramón, Eduardo Velázquez, Adrián Escudero, Marcelino de la Cruz
We assessed the relative importance of dispersal limitation, environmental heterogeneity and their joint effects as determinants of the spatial patterns of 229 species in the moist tropical forest of Barro Colorado Island (Panama). We differentiated five types of species according to their dispersal syndrome; autochorous, anemochorous, and zoochorous species with small, medium-size and large fruits. We characterized the spatial patterns of each species and we checked whether they were best fitted by Inhomogeneous Poisson (IPP), Homogeneous Poisson cluster (HPCP) and Inhomogeneous Poisson cluster processes (IPCP) by means of the Akaike Information Criterion...
2018: PloS One
https://www.readbyqxmd.com/read/29451024/network-pharmacology-based-screening-of-the-active-ingredients-and-potential-targets-of-the-genus-of-pithecellobium-marthae-britton-killip-niezgoda-nevl-for-application-to-alzheimer-s-disease
#5
Han Zhang, Zhi-Yang Yan, Yu-Xi Wang, Ming Bai, Xiao-Bo Wang, Xiao-Xiao Huang, Shao-Jiang Song
Alzheimer's disease (AD) is a progressive neurodegenerative disorder associated with synaptic dysfunction, pathological accumulation of β-amyloid (Aβ), and neuronal loss. Given the prevalence of AD and the lack of effective long-term therapies, there is a pressing need to discover viable leads that can be developed into clinically approved drugs with disease-modifying effects. The analysis of current reported literatures confirms the importance of the plants of Pithecellobium genus as candidate against AD...
February 16, 2018: Natural Product Research
https://www.readbyqxmd.com/read/29450953/factors-influencing-seedling-emergence-of-three-global-invaders-in-greenhouses-representing-major-eco-regions-of-the-world
#6
Mohammed A S Arfin Khan, Vanessa M S Vetter, Zafer A Reshi, Parvaiz A Dar, Anke Jentsch
Success of germination and seedling emergence in new environments are crucial first steps in the life history of global plant invaders and thus play a key role in processes of range expansion. We examined the germination and seedling emergence success of three global plant invaders - Lupinus polyphyllus, Senecio inaequidens, and Verbascum thapsus - in greenhouses and climate chambers under climate regimes corresponding to seven eco-regions. Seed materials were collected from one non-native population for L...
February 16, 2018: Plant Biology
https://www.readbyqxmd.com/read/29450146/novel-proteins-from-proteomic-analysis-of-the-trunk-disease-fungus-lasiodiplodia-theobromae-botryosphaeriaceae
#7
Carla C Uranga, Majid Ghassemian, Rufina Hernández-Martínez
Many basic science questions remain regarding protein functions in the pathogen: host interaction, especially in the trunk disease fungi family, the Botryosphaeriaceae, which are a global problem for economically important plants, especially fruiting trees. Proteomics is a highly useful technology for studying protein expression and for discovering novel proteins in unsequenced and poorly annotated organisms. Current fungal proteomics approaches involve 2D SDS-PAGE and extensive, complex, protein extraction methodologies...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29449875/a-robust-vegetation-index-for-remotely-assessing-chlorophyll-content-of-dorsiventral-leaves-across-several-species-in-different-seasons
#8
Shan Lu, Fan Lu, Wenqiang You, Zheyi Wang, Yu Liu, Kenji Omasa
Background: Leaf chlorophyll content (LCC) provides valuable information about plant physiology. Most of the published chlorophyll vegetation indices at the leaf level have been based on the spectral characteristics of the adaxial leaf surface, thus, they are not appropriate for estimating LCC when both the adaxial and abaxial leaf surfaces influence the spectral reflectance. We attempted to address this challenge by measuring the spectral reflectance of the adaxial and abaxial leaf surfaces of several plant species at different growth stages using a portable field spectroradiometer...
2018: Plant Methods
https://www.readbyqxmd.com/read/29449874/an-efficient-modified-method-for-plant-leaf-lipid-extraction-results-in-improved-recovery-of-phosphatidic-acid
#9
Sunitha Shiva, Regina Enninful, Mary R Roth, Pamela Tamura, Krishna Jagadish, Ruth Welti
Background: Lipidomics plays an important role in understanding plant adaptation to different stresses and improving our knowledge of the genes underlying lipid metabolism. Lipidomics involves lipid extraction, sample preparation, mass spectrometry analysis, and data interpretation. One of the practical challenges for large-scale lipidomics studies on plant leaves is the requirement of an efficient and rapid extraction method. Results: A single-extraction method with a polar solvent mixture gives results comparable to a widely used, multi-extraction method when tested on both Arabidopsis thaliana and Sorghum bicolor leaf tissue...
2018: Plant Methods
https://www.readbyqxmd.com/read/29449853/targeted-haplotype-comparisons-between-south-african-wheat-cultivars-appear-predictive-of-pre-harvest-sprouting-tolerance
#10
Scott L Sydenham, Annelie Barnard
Pre-harvest sprouting (PHS) has been a serious production constraint for over two decades, especially in the summer rainfall wheat production regions of South Africa. It is a complex genetic trait controlled by multiple genes, which are significantly influenced by environmental conditions. This complicates the accurate prediction of a cultivar's stability in terms of PHS tolerance. A number of reports have documented the presence of major QTL on chromosomes 3A and 4A of modern bread wheat cultivars, which confer PHS tolerance...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29448638/delivery-of-abscisic-acid-to-plants-using-glutathione-responsive-mesoporous-silica-nanoparticles
#11
Dequan Sun, Hashmath I Hussain, Zhifeng Yi, James E Rookes, Lingxue Kong, David M Cahill
An intracellular glutathione (GSH) responsive phytochemical delivery system based on thiol gated mesoporous silica nanoparticles (MSNs) was developed and tested on the model plant Arabidopsis thaliana. In the present study, monodispersed MSNs with particle diameters of ~20 nm and pore sizes of ~2.87 nm were synthesized and modified. Abscisic acid (ABA), a key phytohormone, was entrapped in the mesopores of MSNs and then the pore entrances of MSNs were covered with decanethiol gatekeepers through GSH-cleavable disulfide linkages...
March 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448079/identifying-the-underlying-causes-of-biological-instability-in-a-full-scale-drinking-water-supply-system
#12
Alina Nescerecka, Talis Juhna, Frederik Hammes
Changes in bacterial concentration and composition in drinking water during distribution are often attributed to biological (in)stability. Here we assessed temporal biological stability in a full-scale distribution network (DN) supplied with different types of source water: treated and chlorinated surface water and chlorinated groundwater produced at three water treatment plants (WTP). Monitoring was performed weekly during 12 months in two locations in the DN. Flow cytometric total and intact cell concentration (ICC) measurements showed considerable seasonal fluctuations, which were different for two locations...
February 6, 2018: Water Research
https://www.readbyqxmd.com/read/29447184/greenery-in-the-university-environment-students-preferences-and-perceived-restoration-likelihood
#13
Nicole van den Bogerd, S Coosje Dijkstra, Jacob C Seidell, Jolanda Maas
A large body of evidence shows that interaction with greenery can be beneficial for human stress reduction, emotional states, and improved cognitive function. It can, therefore, be expected that university students might benefit from greenery in the university environment. Before investing in real-life interventions in a university environment, it is necessary to first explore students' perceptions of greenery in the university environment. This study examined (1) preference for university indoor and outdoor spaces with and without greenery (2) perceived restoration likelihood of university outdoor spaces with and without greenery and (3) if preference and perceived restoration likelihood ratings were modified by demographic characteristics or connectedness to nature in Dutch university students (N = 722)...
2018: PloS One
https://www.readbyqxmd.com/read/29446750/copaiba-oil-decreases-oxidative-stress-and-inflammation-but-not-colon-damage-in-rats-with-tnbs-induced-colitis
#14
Maiara Morseli Coelho Barbosa, Fernando Augusto Vicentini, Cristiane Vizioli Castro-Ghizoni, Osmar Alves Lameira, Anacharis Babeto Sa-Nakanishi, Livia Bracht, Rosane Marina Peralta, Maria Raquel Marçal Natali, Adelar Bracht, Jurandir Fernando Comar
BACKGROUND: TNBS-induced colitis is an experimental immunopathology in rats that shares many features with human inflammatory bowel diseases. Copaiba oleoresin is extracted from plants of the genus Copaifera and is shown to reduce inflammation. OBJECTIVE: to investigate the action of copaiba oil (C. reticulata Ducke) on inflammation and oxidative status in the distal colon of colitic rats. METHODS: Acute and subchronic colitis were induced in Wistar rats by an intracolonic enema with 2,4,6-trinitrobenzenesulfonic acid (TNBS)...
February 14, 2018: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29446495/the-role-of-cobra-like-2-function-as-part-of-the-complex-network-of-interacting-pathways-regulating-arabidopsis-seed-mucilage-polysaccharide-matrix-organization
#15
Daniela Ben-Tov, Anat Idan-Molakandov, Anat Hugger, Ilan Ben-Shlush, Markus Günl, Bo Yang, Björn Usadel, Smadar Harpaz-Saad
The production of hydrophilic mucilage along the course of seed coat epidermal cell differentiation is a common adaptation in angiosperms. Previous studies identified COBRA-LIKE 2 (COBL2), a member of the COBRA-LIKE gene family, as a novel component required for crystalline cellulose deposition in seed coat epidermal cells. In recent years, Arabidopsis seed coat epidermal cells (SCEs), also called mucilage secretory cells, have emerged as a powerful model system for the study of plant cell wall components biosynthesis, secretion, assembly and de-muro modification...
February 15, 2018: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29444862/targeted-dna-demethylation-of-the-arabidopsis-genome-using-the-human-tet1-catalytic-domain
#16
Javier Gallego-Bartolomé, Jason Gardiner, Wanlu Liu, Ashot Papikian, Basudev Ghoshal, Hsuan Yu Kuo, Jenny Miao-Chi Zhao, David J Segal, Steven E Jacobsen
DNA methylation is an important epigenetic modification involved in gene regulation and transposable element silencing. Changes in DNA methylation can be heritable and, thus, can lead to the formation of stable epialleles. A well-characterized example of a stable epiallele in plants is fwa , which consists of the loss of DNA cytosine methylation (5mC) in the promoter of the FLOWERING WAGENINGEN ( FWA ) gene, causing up-regulation of FWA and a heritable late-flowering phenotype. Here we demonstrate that a fusion between the catalytic domain of the human demethylase TEN-ELEVEN TRANSLOCATION1 (TET1cd) and an artificial zinc finger (ZF) designed to target the FWA promoter can cause highly efficient targeted demethylation, FWA up-regulation, and a heritable late-flowering phenotype...
February 14, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29444820/a-modified-hypoallergenic-variant-of-the-ricinus-communis-ric-c1-protein-retains-biological-activity
#17
Thaís Pacheco-Soares, André de Oliveira Carvalho, Jucélia da Silva Araújo, Giliane da Silva de Souza, Olga L T Machado
Ric c1, an allergenic protein from Ricinus communis , is an insect α-amylase inhibitor that has become an occupational allergen. Ric c1 can cross-react with allergens from wheat, soybean, peanut, shrimp, fish, gluten, house dust, tobacco, and air fungus, thereby amplifying the concern and risks caused by Ricinus allergens. Two continuous IgE-binding epitopes were identified in Ric c1, both containing glutamic acid residues involved in IgE-binding and allergic challenges. We produced recombinant Ric c1 (rRic c1) in Escherichia coli , using primers from foliar R...
February 14, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29442869/electrochemical-sensor-based-on-rh-iii-ion-imprinted-polymer-as-a-new-modifying-agent-for-rhodium-determination
#18
Huiping Bai, Caiyun Xiong, Chunqiong Wang, Peng Liu, Su Dong, Qiue Cao
A rhodium (III) ion carbon paste electrode (CPE) based on an ion imprinted polymer (IIP) as a new modifying agent has been prepared and studied. Rh(III) ion imprinted polymer was synthesized by copolymerization of acrylamide-Rh(III) complex and ethylene glycol dimethacrylate according to the precipitation polymerization. Acrylamide acted as both functional monomer and complexing agent to create selective coordination sites in a cross-linked polymer. The ion imprinted carbon paste electrode (IIP-CPE) was prepared by mixing rhodium IIP-nanoparticles and graphite powder in n-eicosane as an adhesive and then embedding them in a Teflon tube...
May 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29442832/synthesis-of-tio%C3%A2-fly-ash-cenospheres-by-sol-gel-method-and-their-photacatalytic-activities-under-visible-light
#19
Zhi-Huan Zhao, Wen-Hui Liu, Yong-Qiang Xue, Shu Yin
Fly ash is a solid waste discharged from thermal power plant. Specific surface area of floating fly ash cenospheres (FACs) would increase after it was modified. The photocatalytic composite of TiO2/FACs was successfully synthesized by sol-gel method using the carrier of modified FACs and tetrabutyl titanate as starting materials. The different influence factors on the photocatalytic performance of TiO2/FACs composites were characterized through SEM, EDS, XRD, UV-vis DRS and BET surface measurements. The UV-vis DRS spectra revealed that the absorption edge of TiO2 is 387 nm while that of TiO2/FACs photocatalysts red-shifts to 500 nm...
May 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29439722/tomatidine-and-analog-fc04-100-possess-bactericidal-activities-against-listeria-bacillus-and-staphylococcus-spp
#20
Isabelle Guay, Simon Boulanger, Charles Isabelle, Eric Brouillette, Félix Chagnon, Kamal Bouarab, Eric Marsault, François Malouin
BACKGROUND: Tomatidine (TO) is a plant steroidal alkaloid that possesses an antibacterial activity against the small colony variants (SCVs) of Staphylococcus aureus. We report here the spectrum of activity of TO against other species of the Bacillales and the improved antibacterial activity of a chemically-modified TO derivative (FC04-100) against Listeria monocytogenes and antibiotic multi-resistant S. aureus (MRSA), two notoriously difficult-to-kill microorganisms. METHODS: Bacillus and Listeria SCVs were isolated using a gentamicin selection pressure...
February 13, 2018: BMC Pharmacology & Toxicology
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