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https://www.readbyqxmd.com/read/27933088/comparison-of-ionomic-and-metabolites-response-under-alkali-stress-in-old-and-young-leaves-of-cotton-gossypium-hirsutum-l-seedlings
#1
Rui Guo, LianXuan Shi, ChunWu Yang, ChangRong Yan, XiuLi Zhong, Qi Liu, Xu Xia, HaoRu Li
Soil salinization is an important agriculture-related environmental problem. Alkali stress and salt stress strongly influence the metabolic balance in plants. Salt and alkali stresses exert varied effects on old and young tissues, which display different adaptive strategies. In this study, we used cotton (Gossypium hirsutum L.) plants as experimental material to investigate whether alkali stress induces ionic and metabolism changes in old and young leaves of cotton plants exposed to alkali stress. Results showed that alkali stress exerted a considerably stronger growth inhibition on old leaves than on young leaves...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27932526/human-plasma-n-glycosylation-as-analyzed-by-maldi-fticr-ms-associates-with-markers-of-inflammation-and-metabolic-health
#2
Karli R Reiding, L Renee Ruhaak, Hae-Won Uh, Said El Bouhaddani, Erik B van den Akker, Rosina Plomp, Liam A McDonnell, Jeanine J Houwing-Duistermaat, P Eline Slagboom, Marian Beekman, Manfred Wuhrer
Glycosylation is an abundant co- and post-translational protein modification of importance to protein processing and activity. While not template-defined, glycosylation does reflect the biological state of an organism and is a high-potential biomarker for disease and patient stratification. However, to interpret a complex but informative sample like the total plasma N-glycome (TPNG), it is important to establish its baseline association with plasma protein levels and systemic processes. Thus far, large scale studies (n > 200) of the TPNG have been performed with methods of chromatographic and electrophoretic separation, which, while being informative, are limited in resolving the structural complexity of plasma N-glycans...
December 8, 2016: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/27932460/protein-o-linked-mannose-%C3%AE-1-4-n-acetylglucosaminyltransferase-2-pomgnt2-is-a-gatekeeper-enzyme-for-functional-glycosylation-of-%C3%AE-dystroglycan
#3
Stephanie M Halmo, Danish Singh, Sneha Patel, Shuo Wang, Melanie Edlin, Geert-Jan Boons, Kelley W Moremen, David Live, Lance Wells
Disruption of the O-mannosylation pathway involved in functional glycosylation of α-dystroglycan gives rise to congenital muscular dystrophies. Protein O-linked mannose β-1,4-N-acetylglucosaminyltransferase 2 (POMGNT2) catalyzes the first step towards the functional matriglycan structure on α-dystroglycan that is responsible for binding extracellular matrix proteins and certain arenaviruses. Alternatively, protein O-linked mannose β-1,2-N-acetylglucosaminyltransferase 1 (POMGNT1) catalyzes the first step towards other various glycan structures present on α-dystroglycan of unknown function...
December 8, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27932258/heteroglycan-of-an-edible-mushroom-pleurotus-cystidiosus-structural-characterization-and-study-of-biological-activities
#4
Bibhash C Panda, Prasenjit Maity, Ashis K Nandi, Manabendra Pattanayak, Dilip K Manna, Soumitra Mondal, Satyajit Tripathy, Somenath Roy, Krishnendu Acharya, Syed S Islam
A water soluble heteroglycan (PCPS) was isolated from the aqueous extract of an edible mushroom Pleurotus cystidiosus. Structural characterization of the heteroglycan was carried out using total hydrolysis, methylation analysis, periodate oxidation, Smith degradation, and 1D/2D NMR experiments. Sugar analysis indicated the presence of glucose, galactose, and mannose in a molar ratio of nearly 6:2:1 respectively. The chemical and NMR analysis of the PCPS indicated the presence of a repeating unit with a backbone consisting of one unit of (1→6)-b-D-glucopyranosyl, two (1→3)-b-D-glucopyranosyl, one (1→3)-a-D-glucopyranosyl, one (1→6)-a-D-glucopyranosyl, and two (1→6)-a-D-galactopyranosyl moieties respectively, out of which one (1→3)-b-D-glucopyranosyl residue was branched at O-6 with terminal b-D-glucopyranosyl and another (1→6)-a-D-galactopyranosyl residue was branched at O-2 with terminal b-D-mannopyranosyl moiety...
December 5, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27931588/evaluation-of-mannose-binding-lectin-is-a-useful-approach-to-predict-the-risk-of-infectious-complications-following-autologous-hematopoietic-stem-cell-transplantation
#5
Z B Radnay, M Udvardy, M Papp, J Hársfalvi, L Rejto, I Pál, Á Illés, A Kiss
Hematopoietic stem cell transplantation (HSCT) associated immunocompromised state carries high risk of infectious complications. Mannose-binding lectin (MBL) is an acute phase protein involved in innate immune response. Serum MBL level is genetically determined and quite stable. According to literature, significant association was shown between low MBL concentrations and serious infections. The association between serum MBL level and frequency and severity of infections was studied in 186 patients following autologous HSCT...
December 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27931102/mannose-receptor-mediates-the-immune-response-to-ganoderma-atrum-polysaccharides-in-macrophages
#6
Wen-Juan Li, Xiao-Fang Tang, Xiao-Xue Shuai, Cheng-Jia Jiang, Xiang Liu, Le-Feng Wang, Yu-Fei Yao, Shaoping Nie, Ming-Yong Xie
The ability of mannose receptor (MR) to recognize the carbohydrate structures is well established. Here we reported that MR was crucial for the immune response to Ganoderma atrum polysaccharides (PSG-1), as evidenced by elevation of MR in association with increase of phagocytosis and concentrations of IL-1ß and TNF-α in normal macrophages. Elevation of MR triggered by PSG-1 also led to control lipopolysaccharide (LPS)-triggered inflammatory response via the increase of IL-10 and inhibition of phagocytosis and IL-1ß...
December 8, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27928741/site-specific-glycosylation-of-the-newcastle-disease-virus-haemagglutinin-neuraminidase
#7
Cassandra L Pegg, Christine Hoogland, Jeffrey J Gorman
Members of the Avulavirus, Respirovirus and Rubulavirus genera of the Paramyxoviridae family of viruses utilise haemagglutinin-neuraminidase glycoproteins as their attachment proteins. These glycoproteins are oligomeric type II integral membrane proteins, which possess haemagglutination and sialidase activity. Previous studies have shown that the N-linked glycans present on these proteins can modulate the ability of the virus to infect host cells and stimulate the host immune system. However, site-specific heterogeneity of these glycans has not been defined...
December 7, 2016: Glycoconjugate Journal
https://www.readbyqxmd.com/read/27924983/detection-of-the-tuberculosis-antigenic-marker-mannose-capped-lipoarabinomannan-in-pretreated-serum-by-surface-enhanced-raman-scattering
#8
Alexis C Crawford, Lars B Laurentius, Timothy S Mulvihill, Jennifer H Granger, John S Spencer, Delphi Chatterjee, Kimberly E Hanson, Marc D Porter
The ability to detect tuberculosis (TB) continues to be a global health care priority. This paper describes the development and preliminary assessment of the clinical accuracy of a heterogeneous immunoassay that integrates a serum pretreatment process with readout by surface-enhanced Raman scattering (SERS) for the low-level detection of mannose-capped lipoarabinomannan (ManLAM). ManLAM is a major virulence factor in the infectious pathology of Mycobacterium tuberculosis (Mtb) that has been found in the serum and other body fluids of infected patients...
December 7, 2016: Analyst
https://www.readbyqxmd.com/read/27916796/extraction-structural-characterization-and-potential-antioxidant-activity-of-the-polysaccharides-from-four-seaweeds
#9
Jinzhe He, Yaoyang Xu, Hongbo Chen, Peilong Sun
Four seaweed polysaccharides were extracted from Sarcodia ceylonensis, Ulva lactuca L., Gracilaria lemaneiformis, and Durvillaea antarctica, respectively, by microwave-assisted extraction. The effect of three significant variables (extraction time, extraction temperature, and the ratio of water to raw material) on the process for extracting polysaccharides was investigated, along with the optimization of the extraction using the response surface method (RSM) with a Box-Behnken design. The polysaccharide structure, monosaccharide composition, degree of sulfation, and molecular weight (MW) distribution were analyzed by infrared (IR) spectrometry, gas chromatography (GC), and high-performance gel permeation chromatography (HPGPC)...
November 28, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27911110/mannose-binding-lectin-deficiency-in-brazilian-patients-with-spondyloarthritis
#10
Thelma L Skare, Renato Nisihara, Juliana Z Cieslinski, João O Zeni, Henrique N Rasera, Iara Messias-Reason, Shirley R R Utiyama
BACKGROUND: Infections are usually involved in the pathogenesis of spondyloarthritis (SpA). Mannose-binding lectin (MBL) is a component of the innate immune system with an important role in microbial defense. OBJECTIVE: To study the prevalence of MBL deficiency in SpA patients as well as its influence in the clinical profile of these diseases. METHODS: We studied 89 SpA patients and 89 healthy individuals, paired for age and gender. MBL serum levels were measured by ELISA test...
December 2, 2016: Immunological Investigations
https://www.readbyqxmd.com/read/27910772/structural-characterization-and-immunological-activities-of-a-novel-water-soluble-polysaccharide-from-the-fruiting-bodies-of-culinary-medicinal-winter-mushroom-flammulina-velutipes-agaricomycetes
#11
Ting Feng, Wei Jia, Wen-Han Wang, Chi-Chung Lin, Hua Fan, Jing-Song Zhang, Hai-Ying Bao
A water-soluble polysaccharide, designated FVPA2, was isolated from the fruiting bodies of Flammulina velutipes using DEAE Sepharose Fast Flow and gel-permeation chromatography. Its structure was elucidated by monosaccharide composition and methylation analysis, ultraviolet, Fourier transform infrared spectrometry, and nuclear magnetic resonance spectroscopy. Results showed that FVPA2 was a homogeneous heteropolysaccharide containing galactose, fucose, and mannose in a molar ratio of 5:1:1. High-performance liquid chromatography indicated its molecular weight as 3...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27909959/effects-of-anti-cd206-antibodies-on-macrophage-functions-in-male-cbf1-mice-with-lipidemia
#12
A P Lykov, T A Korolenko, L V Sakhno, O V Poveshchenko, N A Bondarenko, M A Surovtseva, N V Goncharova
The effects of anti-CD208 antibodies (mannose receptor) on functional characteristics of peritoneal macrophages were studied in intact mice and mice with lipidemia induced by poloxamer-407. Lipidemia was associated with suppression of phagocytosis and increase in spontaneous proliferative potential and NO production by macrophages. Anti-CD206 antibodies suppressed NO production by macrophages in mice with lipidemia.
December 1, 2016: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/27909766/association-between-tlr2-tlr4-gene-polymorphisms-and-copd-phenotype-in-a%C3%A2-greek-cohort
#13
A Apostolou, T Kerenidi, A Michopoulos, K I Gourgoulianis, M Noutsias, A E Germenis, M Speletas
BACKGROUND: Considering that the innate immune system plays a pivotal role in the pathogenesis of chronic obstructive pulmonary disease (COPD), we hypothesized that functional single-nucleotide polymorphisms (SNPs) of innate immune genes affect the disease phenotype and prognosis. AIM: To elucidate the contribution of common functional TLR2 and TLR4 SNPs and genotypic deficiency of the mannose-binding lectin (MBL) protein, both as single parameters and in combination, in Greek COPD patients...
December 1, 2016: Herz
https://www.readbyqxmd.com/read/27906184/1-methyl-tryptophan-attenuates-regulatory-t-cells-differentiation-due-to-the-inhibition-of-estrogen-ido1-mrc2-axis-in-endometriosis
#14
Chunyan Wei, Jie Mei, Lingli Tang, Yukai Liu, Dajin Li, Mingqing Li, Xiaoyong Zhu
Foxp3(+) regulatory T (Treg) cells contribute to the local dysfunctional immune environment in endometriosis, an estrogen-dependent gynecological disease, which affects the function of ectopic endometrial tissue clearance by the immune system. The reason for the high percentage of peritoneal Treg in endometriosis patients is unknown. Here, we show that the proportion of peritoneal Treg cells increases as endometriosis progresses. To determine the probable mechanism, we established a naive T cell-macrophage-endometrial stromal cell (ESC) co-culture system to mimic the peritoneal cavity microenvironment...
December 1, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27905883/carbohydrate-metabolism-in-oenococcus-oeni-a-genomic-insight
#15
Alice Cibrario, Claire Peanne, Marine Lailheugue, Hugo Campbell-Sills, Marguerite Dols-Lafargue
BACKGROUND: Oenococcus oeni is the bacterial species that drives malolactic fermentation in most wines. Several studies have described a high intraspecific diversity regarding carbohydrate degradation abilities but the link between the phenotypes and the genes and metabolic pathways has been poorly described. RESULTS: A collection of 41 strains whose genomic sequences were available and representative of the species genomic diversity was analyzed for growth on 18 carbohydrates relevant in wine...
December 1, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27903647/the-production-and-utilization-of-gdp-glucose-in-the-biosynthesis-of-trehalose-6-phosphate-by-streptomyces-venezuelae
#16
Matías D Asencion Diez, Farzana Miah, Clare E M Stevenson, David M Lawson, Alberto A Iglesias, Stephen Bornemann
Trehalose-6-phosphate synthase OtsA from streptomycetes is unusual in that it uses GDP-glucose as the donor substrate rather than the more commonly used UDP-glucose. We now confirm that OtsA from Streptomyces venezuelae has such a preference for GDP-glucose and can utilise ADP-glucose to some extent too. A crystal structure of the enzyme shows that it shares twin Rossmann-like domains with the UDP-glucose-specific OtsA from Escherichia coli However, it is structurally more similar to Streptomyces hygroscopicus VldE, a GDP-valienol-dependent pseudo-glycosyltransferase enzyme...
November 30, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27902348/micropepsis-pineolensis-gen-nov-sp-nov-a-mildly-acidophilic-alphaproteobacterium-isolated-from-a-poor-fen-and-proposal-of-micropepsaceae-fam-nov-within-micropepsales-ord-nov
#17
Austin B Harbison, Laiken E Price, Michael D Flythe, Suzanna L Brauer
An obligately anaerobic, mildly acidophilic, fermentative alphaproteobacterium, designated strain CS4 T, was isolated from an acidic, oligotrophic (nutrient-poor) poor fen located near Pineola, NC, USA. Cultures contained Gram-negative staining, slightly curved, non-motile, non-spore forming, non-prosthecate rods (0.1-0.4 µm in diameter and 0.4-4 µm long, depending, in part, on the growth substrate). Growth optima were 35° C (range 15 - 35°C), pH 5.6 (range of 5.0 - 6.8), and with 0-50 mM added NaCl (range 0-100 mM added NaCl)...
November 21, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902335/defluviitalea-raffinosedens-sp-nov-a-novel-thermophilic-anaerobic-saccharolytic-bacterium-isolated-from-an-anaerobic-batch-digester-treating-animal-manure-and-rice-straw
#18
Shichun Ma, Yan Huang, Cong Wang, Hui Fan, Lirong Dai, Zheng Zhou, Xing Liu, Yu Deng
A thermophilic, anaerobic, fermentative bacterium, strain A6T, was obtained from an anaerobic batch digester treating animal manure and rice straw. The strain was Gram-positive, slightly curved rods with a size of 0.6-1 μm × 2.5-8.2 μm, non-motile, and produced terminal spores. The temperature, pH, and NaCl concentration ranges for growth were 40°C-60°C, 6.5-8.0, and 0-15.0 g/L, with optimum growth noted at 50°C-55°C, pH 7.5, and in the absence of NaCl, respectively. Yeast extract was required for growth...
November 14, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902318/streptomyces-capparidis-sp-nov-a-novel-endophytic-actinobacterium-isolated-from-fruits-of-capparis-spinosa-l
#19
Hong-Fei Wang, Qiu-Li Li, Min Xiao, Yong-Guang Zhang, Xing-Kui Zhou, Manik Prabhu Narsing Rao, Yan-Qing Duan, Wen-Jun Li
A novel endophytic actinobactrium strain, designated EGI 6500195T, was isolated from Capparis spinosa. Growth occurred at 10-45 °C (optimum 30 °C), pH 6-8 (optimum pH 7) and in the presence of 0-1% NaCl (w/v). The strain EGI 6500195T shared the highest 16S rRNA gene sequence similarity (97.74 %) with Streptomyces vitaminophilus DSM 41686T and less than 97% sequence similarities with other members of the genus Streptomyces. The diagnostic amino acid in the peptidoglycan was LL-diaminopimelic acid. Whole-cell hydrolysates contained glucose, ribose,fructose and mannose...
October 18, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27902317/psychromicrobium-silvestre-gen-nov-sp-nov-a-novel-actinobacterium-isolated-from-alpine-forest-soils
#20
Peter Schumann, De-Chao Zhang, Luís Franca, Luciana Albuquerque, Milton S da Costa, Rosa Margesin
Two Gram-stain-variable, non-motile, catalase-positive and cytochrome c oxidase-negative bacteria, designated AK20-18T and AM20-54, were isolated from forest soil samples collected in the Italian Alps. Growth occurred at a temperature range of 5-30 °C, at pH 6-9 and in the presence of 0-5 % (w/v) NaCl. The 16S rRNA gene sequence similarity between strains AK20-18T and AM20-54 was 100 %. Phylogenetic analysis based on 16S rRNA gene sequence showed that AK20-18T had highest 16S rRNA gene sequence similarity with the type strain of Arthrobacter psychrochitiniphilus (96...
November 21, 2016: International Journal of Systematic and Evolutionary Microbiology
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