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https://www.readbyqxmd.com/read/29323145/xyloglucan-fucosylation-modulates-arabidopsis-cell-wall-hemicellulose-aluminium-binding-capacity
#1
Jiang-Xue Wan, Xiao-Fang Zhu, Yu-Qi Wang, Lin-Yu Liu, Bao-Cai Zhang, Gui-Xin Li, Yi-Hua Zhou, Shao-Jian Zheng
Although xyloglucan (XyG) is reported to bind Aluminium (Al), the influence of XyG fucosylation on the cell wall Al binding capacity and plant Al stress responses is unclear. We show that Arabidopsis T-DNA insertion mutants with reduced AXY3 (XYLOSIDASE1) function and consequent reduced levels of fucosylated XyG are more sensitive to Al than wild-type Col-0 (WT). In contrast, T-DNA insertion mutants with reduced AXY8 (FUC95A) function and consequent increased levels of fucosylated XyG are more Al resistant...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319422/effect-of-the-supports-on-catalytic-activity-of-pd-catalysts-for-liquid-phase-hydrodechlorination-hydrogenation-reaction
#2
Lijuan Lan, Ying Liu, Sujing Liu, Xuanxuan Ma, Xiaoqiang Li, Zhicheng Dong, Chuanhai Xia
Carbon nanotubes (CNTs), activated carbon (AC), graphene, and aluminium oxide (Al2O3) supported 5% Pd catalysts were prepared by conventional impregnation method, and catalytic activity was tested in hydrogenation of 4-chlorophenol (4-CP) and nitrobenzene (NB) under ambient conditions (313 K and atmospheric pressure). It was found that catalytic activity was greatly affected by the supports. Moreover, Pd/CNTs catalyst exhibited much higher catalytic activity than the other three supported Pd catalysts. The mechanism of this phenomenon was studied through catalyst characterization (ICP-MS, BET, TEM, and SEM)...
January 10, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29302304/novel-mechanisms-for-organic-acid-mediated-aluminium-tolerance-in-roots-and-leaves-of-two-contrasting-soybean-genotypes
#3
Shou-Cheng Huang, Shu-Juan Chu, Yu-Min Guo, Ya-Jing Ji, Dong-Qing Hu, Jing Cheng, Gui-Hua Lu, Rong-Wu Yang, Cheng-Yi Tang, Jin-Liang Qi, Yong-Hua Yang
Aluminium (Al) toxicity is one of the most important limiting factors for crop yield in acidic soils. However, the mechanisms that confer Al tolerance still remain largely unknown. To understand the molecular mechanism that confers different tolerance to Al, we performed global transcriptome analysis to the roots and leaves of two contrasting soybean genotypes, BX10 (Al-tolerant) and BD2 (Al-sensitive) under 0 and 50 μM Al3+ treatments, respectively. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses revealed that the expression levels of the genes involved in lipid/carbohydrate metabolism and jasmonic acid (JA)-mediated signalling pathway were highly induced in the roots and leaves of both soybean genotypes...
November 2017: AoB Plants
https://www.readbyqxmd.com/read/29302302/neutral-molecular-markers-support-common-origin-of-aluminium-tolerance-in-three-congeneric-grass-species-growing-in-acidic-soils
#4
Roberto Contreras, Ana M Figueiras, F Javier Gallego, Elena Benavente, Antonio J Manzaneda, César Benito
Aluminium (Al) toxicity is the main abiotic stress limiting plant productivity in acidic soils that are widely distributed among arable lands. Plant species differ in the level of Al resistance showing intraspecific and interspecific variation in many crop species. However, the origin of Al-tolerance is not well known. Three annual species, difficult to distinguish phenotypically and that were until recently misinterpreted as a single complex species under Brachypodium distachyon, have been recently separated into three distinct species: the diploids B...
November 2017: AoB Plants
https://www.readbyqxmd.com/read/29300825/the-arabidopsis-thaliana-non-specific-phospholipase-c2-is-involved-in-the-response-to-pseudomonas-syringae-attack
#5
Zuzana Krcková, Daniela Kocourková, Michal Danek, Jitka Brouzdová, Premysl Pejchar, Martin Janda, Igor Pokotylo, Peter G Ott, Olga Valentová, Jan Martinec
Background and Aims: The non-specific phospholipase C (NPC) is a new member of the plant phospholipase family that reacts to abiotic environmental stresses, such as phosphate deficiency, high salinity, heat and aluminium toxicity, and is involved in root development, silicon distribution and brassinolide signalling. Six NPC genes (NPC1-NPC6) are found in the Arabidopsis genome. The NPC2 isoform has not been experimentally characterized so far. Methods: The Arabidopsis NPC2 isoform was cloned and heterologously expressed in Escherichia coli...
December 29, 2017: Annals of Botany
https://www.readbyqxmd.com/read/29299756/handheld-metal-detector-for-metallic-foreign-body-ingestion-in-pediatric-emergency
#6
Hazwani Binte Hamzah, Vigil James, Suraj Manickam, Sashikumar Ganapathy
OBJECTIVE: Foreign body ingestion is a common problem for which children present to the emergency department. The most common ingested foreign bodies among children are coins. Metal detector is an equipment, which measures a change in inductance of a coil when an electroconductive material is placed near it and produces an audio-visual signal. The present study was conducted to determine the effectiveness and feasibility of HMD in the local Pediatric population. METHODS: This was a prospective study conducted in the pediatric emergency department among children presenting with history of foreign body ingestion...
January 4, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29298374/environmentally-sustainable-aluminium-coordinated-poly-tetrahydroxybenzoquinone-as-a-promising-cathode-for-sodium-ion-batteries
#7
Hee Joong Kim, Youngjin Kim, Jimin Shim, Kyung Hwa Jung, Min Soo Jung, Hanseul Kim, Jong-Chan Lee, Kyu Tae Lee
Na-ion batteries are attractive as an alternative to Li-ion batteries because of their lower cost than Li-ion batteries. Organic compounds have been considered as promising electrode materials due to their environmental friendliness and molecular diversity. Herein, aluminum-coordinated poly(tetrahydroxybenzoquinone) (P(THBQ-Al)), one of the coordination polymers, is introduced for the first time as a promising cathode for Na-ion batteries. P(THBQ-Al) is synthesized through a facile coordination reaction between benzoquinonetetraolate (C6O64-) and Al3+ as ligands and complex metal-ions, respectively...
January 3, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29290896/prognostic-value-of-cortisol-and-thyroid-function-tests-in-poisoned-patients-admitted-to-toxicology-icu
#8
Shahin Shadnia, Nasim Zamani, Hossein Hassanian-Moghaddam, Hamed Shafaroodi, Mina Padandar, Mohammad Hasan Rezaeizadeh
BACKGROUND: Prognostic value of cortisol and thyroid function tests (TFTs) has previously been evaluated in medical ICUs. We aimed to evaluate prognostic efficacy of cortisol and TFTs in critically ill poisoned patients admitted to toxicology intensive care unit (ICU). METHODS: In a prospective study of consecutively enrolled subjects admitted to the toxicology ICU, lab analyses included TFTs (total T3 and T4 as well as TSH) and cortisol levels drawn between 8 am-10 am during period of the first 24 hours post-ingestion/exposure...
2018: World Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29283361/a-carbon-ct-system-how-to-obtain-accurate-stopping-power-ratio-using-a-bragg-peak-reduction-technique
#9
Sung Hyun Lee, Naoki Sunaguchi, Yoshiyuki Hirano, Yosuke Kano, Chang Liu, Masami Torikoshi, Tatsuya Ohno, Takashi Nakano, Tatsuaki Kanai
In this study, we investigate the performance of the Gunma University Heavy Ion Medical Center's ion computed tomography (CT) system, which measures the residual range of a carbon-ion beam using a fluoroscopy screen, a charge-coupled-device camera (CCD), and a moving wedge absorber and collects CT reconstruction images from each projection angle. Each 2D image was obtained by changing the polymethyl methacrylate (PMMA) thickness, such that all images for one projection could be expressed as the depth distribution in PMMA...
December 28, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29281878/synthesis-of-hexaconazole-zinc-aluminium-layered-double-hydroxide-nanocomposite-fungicide-nanodelivery-system-for-controlling-ganoderma-disease-in-oil-palm
#10
Isshadiba Mustafa, Mohd Zobir Hussein, Bullo Saifullah, Abu Seman Idris, Nur Hailini Zainol Hilmi, Sharida Fakurazi
Fungicide, namely hexaconazole was successfully intercalated into the intergalleries of zinc/aluminium-layered double hydroxide (ZALDH) using ion exchange method. Due to the intercalation of hexaconazole, the basal spacing of the ZALDH was increased from 8.7 Å in ZALDH to 29.45 Ǻ in hexaconazole-intercalated ZALDH (HZALDH). The intercalation of hexaconazole into the interlayer of the nanocomposite was confirmed using the Fourier-transform infrared (FTIR) study. This supramolecular chemistry intercalation process enhanced the thermal stability of the hexaconazole moiety...
December 28, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29277735/low-temperature-atomic-layer-deposition-of-sio2-al2o3-multilayer-structures-constructed-on-self-standing-films-of-cellulose-nanofibrils
#11
Matti Putkonen, Perttu Sippola, Laura Svärd, Timo Sajavaara, Jari Vartiainen, Iain Buchanan, Ulla Forsström, Pekka Simell, Tekla Tammelin
In this paper, we have optimized a low-temperature atomic layer deposition (ALD) of SiO2 using AP-LTO® 330 and ozone (O3) as precursors, and demonstrated its suitability to surface-modify temperature-sensitive bio-based films of cellulose nanofibrils (CNFs). The lowest temperature for the thermal ALD process was 80°C when the silicon precursor residence time was increased by the stop-flow mode. The SiO2 film deposition rate was dependent on the temperature varying within 1.5-2.2 Å cycle-1 in the temperature range of 80-350°C, respectively...
February 13, 2018: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29275441/corrosive-extracellular-polysaccharides-of-the-rock-inhabiting-model-fungus-knufia-petricola
#12
Romy Breitenbach, Dorothee Silbernagl, Jörg Toepel, Heinz Sturm, William J Broughton, Guilherme L Sassaki, Anna A Gorbushina
Melanised cell walls and extracellular polymeric matrices protect rock-inhabiting microcolonial fungi from hostile environmental conditions. How extracellular polymeric substances (EPS) perform this protective role was investigated by following development of the model microcolonial black fungus Knufia petricola A95 grown as a sub-aerial biofilm. Extracellular substances were extracted with NaOH/formaldehyde and the structures of two excreted polymers studied by methylation as well as NMR analyses. The main polysaccharide (~ 80%) was pullulan, also known as α-1,4-; α-1,6-glucan, with different degrees of polymerisation...
December 23, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/29275066/phototoxic-effect-of-aluminium-chlorine-and-aluminium-hydroxide-phthalocyanines-on-leishmania-l-amazonensis
#13
V Nesi-Reis, T R Navasconi, D S S L Lera-Nosone, E L Oliveira, P M Barbosa, W Caetano, T G V Silveira, S M A Aristides, N Hioka, M V C Lonardoni
This study investigated the activity of photosensitive phthalocyanines on promastigotes and amastigotes of Leishmania (L.) amazonensis. Aluminum phthalocyanine chloride (AlPcCl), Aluminum phthalocyanine hydroxide (AlPcOH) and zinc phthalocyanine (PcZn) were tested in the presence (matte red LED, potency of 2.5-2.3 μW for 30 minutes) and absence of light against L. amazonensis promastigotes and the parasite viability was evaluated after 24, 48 and 72 h. The amastigote forms were treated with AlPcCl and AlPcOH, following the same lighting protocols described for the promastigote forms, being evaluated after 24 h...
December 21, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/29250351/lithium-tetra-chlorido-aluminate-lialcl4-a-new-polymorph-op12-pmn21-with-li-in-tetra-hedral-inter-stices
#14
Stephan W Prömper, Walter Frank
Dissolving lithium chloride and aluminium chloride in boiling para- or meta-xylene and keeping the colourless solution at room temperature led to crystal growth of a new modification of lithium tetra-chlorido-aluminate, LiAlCl4, which represents a second modification (oP12, Pmn21) of the ternary salt besides the long known monoclinic form [LiAlCl4(mP24, P21/c); Mairesse et al. (1977 ▸). Cryst. Struct. Commun.6, 15-18]. The crystal structures of both modifications can be described as slightly distorted hexa-gonal closest packings of chloride anions...
October 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29242890/aluminium-mediated-carbon-carbon-coupling-of-an-isonitrile
#15
Stephanie J Urwin, Gary S Nichol, Michael J Cowley
Cp*Al reacts with diphenylacetylene to form a Cp*-substituted 1,4-dialuminacyclohexene. The dialuminacyclohexene reacts with four equivalents of an isonitrile to couple the terminal carbon atoms, forming 6 new carbon-carbon bonds and resulting in a zwitterionic diamide ligand which contains a carbocationic backbone.
December 15, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29239784/new-perspectives-for-natural-triterpene-glycosides-as-potential-adjuvants
#16
Marie-Aleth Lacaille-Dubois, Hildebert Wagner
BACKGROUND: Triterpene glycosides are a vast group of secondary metabolites widely distributed in plants including a high number of biologically active compounds. The pharmacological potential is evaluated by using many bioassays particularly in the field of cancerology, immunology, and microbiology. The adjuvant concept is well known for these molecules in vaccines, but there is little preclinical evidence to support this concept in the management of cancer, infections and inflammation...
November 7, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29239453/a-ph-and-salt-dually-responsive-emulsion-in-the-presence-of-amphiphilic-macromolecules
#17
Guangxin Hu, Hui Yang, Qingfeng Hou, Donghong Guo, Gang Chen, Fanghui Liu, Ting Chen, Xuefeng Shi, Yu Su, Jinben Wang
A pH and salt dually responsive emulsion has been designed on the basis of a novel amphiphilic macromolecule. It was found that the water separation of an oil-in-water emulsion reached up to ∼60% after standing for 10 min at low pH. 2-(Diethylamino)ethyl methacrylate (DEA) residues were found to induce the macromolecules to protonate and to be hydrophilic at pH values between 2 and 6, resulting in dewetting from oil droplet surfaces in water. Besides, the macromolecules form aggregates with different structures at the water/oil interface, depending on the pH value or salt concentration of the emulsion system, enabling the system to be demulsified in response to the pH or salt stimulus...
December 14, 2017: Soft Matter
https://www.readbyqxmd.com/read/29239217/effects-of-occupational-exposure-to-aluminium-on-some-oxidative-stress-and-dna-damage-parameters
#18
A M Samir, L A Rashed
AIM: The aim of this work was to investigate the relationships between aluminium levels, oxidative status and DNA damage in workers occupationally exposed to aluminium. SUBJECTS AND METHODS: This study was conducted in a secondary aluminium smelter. It included 96 male workers occupationally exposed to aluminium fume and dust compared to 96 male nonexposed individuals. Full history and clinical examination were done for all participants. Laboratory investigations in the form of serum aluminium, total antioxidant capacity (TAC), urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) and comet assay test were performed...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29235395/adjuvant-activity-of-ethanol-extract-of-hippophae-rhamnoides-leaves-with-inactivated-rabies-virus-antigen
#19
D Singh, B Jayashankar, K P Mishra, H Tanwar, S N Madhusudana, A Y Belludi, R Tulsawani, S B Singh, L Ganju
CONTEXT: Hippophae rhamnoides L. (Elaeagnaceae), commonly known as seabuckthorn (SBT), is known for its medicinal and nutritional properties. OBJECTIVE: Evaluation of in vivo adjuvant activity of SBT leaf extract (SBTE) with inactivated rabies virus antigen (Rb). MATERIALS AND METHODS: Swiss albino mice were immunized with aqueous-alcoholic SBTE (100 mg/kg body weight) or algel (aluminium hydroxide gel) with or without Rb (5% v/v). After priming, booster was administered on day 14...
December 2018: Pharmaceutical Biology
https://www.readbyqxmd.com/read/29234081/high-flux-water-purification-using-aluminium-hydroxide-hydrate-gels
#20
Ali Malekizadeh, Peer M Schenk
Filtration of aqueous liquids has wide implications, for example for provision of clean drinking water. Nevertheless, many people still lack access to safe water and suffer from preventable water-borne microbial diseases. This study reports a new ultrafiltration-range separation technology using a gelatinous layer of aluminium hydroxide polyhydrate as a secondary membrane on a retaining fabric that enables simple and cost-effective production of filtered water. Properties include at least 4-fold higher flux rates than currently available membranes, pressure-resistance, impenetrability to filtered particles, easy cleaning by backwashing and simple, cost-effective replacement by gel injection...
December 12, 2017: Scientific Reports
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