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https://www.readbyqxmd.com/read/28720097/a-versatile-papaya-mosaic-virus-papmv-vaccine-platform-based-on-sortase-mediated-antigen-coupling
#1
Ariane Thérien, Mikaël Bédard, Damien Carignan, Gervais Rioux, Louis Gauthier-Landry, Marie-Ève Laliberté-Gagné, Marilène Bolduc, Pierre Savard, Denis Leclerc
BACKGROUND: Flexuous rod-shaped nanoparticles made of the coat protein (CP) of papaya mosaic virus (PapMV) have been shown to trigger innate immunity through engagement of toll-like receptor 7 (TLR7). PapMV nanoparticles can also serve as a vaccine platform as they can increase the immune response to fused peptide antigens. Although this approach shows great potential, fusion of antigens directly to the CP open reading frame (ORF) is challenging because the fused peptides can alter the structure of the CP and its capacity to self assemble into nanoparticles-a property essential for triggering an efficient immune response to the peptide...
July 18, 2017: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/28715380/production-of-chemicals-by-klebsiella-pneumoniae-using-bamboo-hydrolysate-as-feedstock
#2
Dong Wei, Jinjie Gu, Zhongxi Zhang, Chenhong Wang, Dexin Wang, Chul Ho Kim, Biao Jiang, Jiping Shi, Jian Hao
Bamboo is an important biomass, and bamboo hydrolysate is used by Klebsiella pneumoniae as a feedstock for chemical production. Here, bamboo powder was pretreated with NaOH and washed to a neutral pH. Cellulase was added to the pretreated bamboo powder to generate the hydrolysate, which contained 30 g/L glucose and 15 g/L xylose and was used as the carbon source to prepare a medium for chemical production. When cultured in microaerobic conditions, 12.7 g/L 2,3-butanediol was produced by wildtype K. pneumoniae...
June 29, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28712674/the-ebbinghaus-illusion-in-the-gray-bamboo-shark-chiloscyllium-griseum-in-comparison-to-the-teleost-damselfish-chromis-chromis
#3
Theodora Fuss, Vera Schluessel
This is the first study to comparatively assess the perception of the Ebbinghaus-Titchener circles and variations of the Delboeuf illusion in four juvenile bamboo sharks (Chiloscyllium griseum) and five damselfish (Chromis chromis) using identical training paradigms. We aimed to investigate whether these two species show similarities in the perceptual integration of local elements into the global context. The Ebbinghaus-Titchener circles consist of two equally sized central test circles surrounded by smaller or larger circles of different size, number and/or distance...
May 29, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/28711804/effect-of-iron-iii-ion-on-moso-bamboo-pyrolysis-under-microwave-irradiation
#4
Qing Dong, Xiangqian Li, Zhaoyu Wang, Yanhong Bi, Rongling Yang, Jinfeng Zhang, Hongzhen Luo, Miaomiao Niu, Bo Qi, Chen Lu
The effect of iron(III) ion on microwave pyrolysis of moso bamboo was investigated. Hydrofluoric acid washing was used as a pilot process to demineralize moso bamboo in order to eliminate the influences of the other inorganics contained in moso bamboo itself. The results indicated that the addition of iron(III) ion increased the maximal reaction temperatures under microwave condition dependent on the amount of the added iron(III) ion. The production of the non-condensable gases was promoted by the addition of iron(III) ion mainly at the expense of liquid products...
July 5, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28708881/large-anthropogenic-impacts-on-a-charismatic-small-carnivore-insights-from-distribution-surveys-of-red-panda-ailurus-fulgens-in-nepal
#5
Saroj Panthi, Gopal Khanal, Krishna Prasad Acharya, Achyut Aryal, Arjun Srivathsa
Protected areas are key to preserving biodiversity and maintaining ecosystem services. However, their ability to ensure long-term survival of threatened andendangered species varies across countries, regions and landscapes. Distribution surveys can beparticularly important for assessing the value of protected areas, and gauging their efficacy incatering to species-specific requirements. We assessed the conservation value of one such reserve for a charismatic yet globally endangered species, the red panda Ailurus fulgens,in the light of on-going land-use transformation in Nepal...
2017: PloS One
https://www.readbyqxmd.com/read/28704736/investigating-co-combustion-characteristics-of-bamboo-and-wood
#6
Fang Liang, Ruijuan Wang, Changle Jiang, Xiaomeng Yang, Tao Zhang, Wanhe Hu, Bingbing Mi, Zhijia Liu
To investigate co-combustion characteristics of bamboo and wood, moso bamboo and masson pine were torrefied and mixed with different blend ratios. The combustion process was examined by thermogravimetric analyzer (TGA). The results showed the combustion process of samples included volatile emission and oxidation combustion as well as char combustion. The main mass loss of biomass blends occurred at volatile emission and oxidation combustion stage, while that of torrefied biomass occurred at char combustion stage...
July 4, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28704434/urbanization-is-a-main-driver-for-the-larval-ecology-of-aedes-mosquitoes-in-arbovirus-endemic-settings-in-south-eastern-c%C3%A3-te-d-ivoire
#7
Julien B Z Zahouli, Benjamin G Koudou, Pie Müller, David Malone, Yao Tano, Jürg Utzinger
BACKGROUND: Failure in detecting naturally occurring breeding sites of Aedes mosquitoes can bias the conclusions drawn from field studies, and hence, negatively affect intervention outcomes. We characterized the habitats of immature Aedes mosquitoes and explored species dynamics along a rural-to-urban gradient in a West Africa setting where yellow fever and dengue co-exist. METHODOLOGY: Between January 2013 and October 2014, we collected immature Aedes mosquitoes in water containers in rural, suburban, and urban areas of south-eastern Côte d'Ivoire, using standardized sampling procedures...
July 13, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28702433/korean-solar-salt-ameliorates-colon-carcinogenesis-in-an-aom-dss-induced-c57bl-6-mouse-model
#8
Jaehyun Ju, Yeung-Ju Kim, Eui Seong Park, Kun-Young Park
The effects of Korean solar salt on an azoxymethane (AOM)/dextran sodium sulfate (DSS)-induced colon cancer C57BL/6 mouse model were studied. Korean solar salt samples (SS-S, solar salt from S salt field; SS-Yb, solar salt from Yb salt field), nine-time-baked bamboo salt (BS-9x, made from SS-Yb), purified salt (PS), and SS-G (solar salt from Guérande, France) were orally administered at a concentration of 1% during AOM/DSS colon cancer induction, and compared for their protective effects during colon carcinogenesis in C57BL/6 mice...
June 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28701295/-diminishing-returns-in-the-scaling-of-leaf-area-vs-dry-mass-in-wuyi-mountain-bamboos-southeast-china
#9
Jun Sun, Ruirui Fan, Karl J Niklas, Quanlin Zhong, Fuchun Yang, Man Li, Xiaoping Chen, Mengke Sun, Dongliang Cheng
PREMISE OF STUDY: Leaf area and dry mass are crucial for plant metabolic performance. The "diminishing returns" hypothesis predicts that leaf area will scale less than one with respect to leaf dry mass, indicating that the cost of light interception increases with leaf area. However, it remains unclear whether and how this scaling relationship varies among species growing in different environments. METHODS: More than 2000 measurements from five bamboo species adapted to high and low light and growing at different elevations in Wuyi Mountains, Southeast China, were used to explore how the leaf area vs...
July 12, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28700323/baylisascaris-schroederi-infection-in-giant-pandas-ailuropoda-melanoleuca-in-foping-national-nature-reserve-china
#10
Zhiwei Peng, Changsheng Zhang, Meiying Shen, Heng Bao, Zhijun Hou, Shaowen He, Yuping Hua
The giant panda (Ailuropoda melanoleuca) is the most iconic endangered species in the world, but there is little information about the spatial and temporal distribution of parasites in the wild giant panda population. In total, 193 fecal samples from giant pandas in the Foping National Nature Reserve, People's Republic of China, were analyzed for parasite eggs using a modification of the McMaster technique. The morphology and size of Baylisascaris schroederi eggs were observed under an optical microscope. The prevalence and intensity of B...
July 12, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28698671/morphology-composition-and-mixing-state-of-primary-particles-from-combustion-sources-crop-residue-wood-and-solid-waste
#11
Lei Liu, Shaofei Kong, Yinxiao Zhang, Yuanyuan Wang, Liang Xu, Qin Yan, A P Lingaswamy, Zongbo Shi, Senlin Lv, Hongya Niu, Longyi Shao, Min Hu, Daizhou Zhang, Jianmin Chen, Xiaoye Zhang, Weijun Li
Morphology, composition, and mixing state of individual particles emitted from crop residue, wood, and solid waste combustion in a residential stove were analyzed using transmission electron microscopy (TEM). Our study showed that particles from crop residue and apple wood combustion were mainly organic matter (OM) in smoldering phase, whereas soot-OM internally mixed with K in flaming phase. Wild grass combustion in flaming phase released some Cl-rich-OM/soot particles and cardboard combustion released OM and S-rich particles...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696360/homogenate-assisted-vacuum-powered-bubble-extraction-of-moso-bamboo-flavonoids-for-on-line-scavenging-free-radical-capacity-analysis
#12
Yinnan Sun, Kui Yang, Qin Cao, Jinde Sun, Yu Xia, Yinhang Wang, Wei Li, Chunhui Ma, Shouxin Liu
A homogenate-assisted vacuum-powered bubble extraction (HVBE) method using ethanol was applied for extraction of flavonoids from Phyllostachys pubescens (P. pubescens) leaves. The mechanisms of homogenate-assisted extraction and vacuum-powered bubble generation were discussed in detail. Furthermore, a method for the rapid determination of flavonoids by HPLC was established. HVBE followed by HPLC was successfully applied for the extraction and quantification of four flavonoids in P. pubescens, including orientin, isoorientin, vitexin, and isovitexin...
July 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28695451/the-endoscopic-findings-of-the-upper-gastrointestinal-tract-in-patients-with-crohn-s-disease
#13
REVIEW
Yoshiki Nomura, Kentaro Moriichi, Mikihiro Fujiya, Toshikatsu Okumura
Crohn's disease (CD) is a type of chronic inflammatory bowel disease (IBD) associated with ulceration, and the main foci of the inflammation in CD patients are typically the terminal ileum and colon. However, in the upper gastrointestinal tract (GIT), including the esophagus, stomach and duodenum, inflammatory lesions are also detected as well, with a relatively high frequency (30-75%). Recent advances in imaging modalities, including endoscopy, have aided in the diagnosis of CD. Various lesions, including aphtha, erosion, ulcers, bamboo-joint-like appearance and notch-like appearance, are detected in the upper GI of CD patients...
August 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/28690135/genome-editing-in-shiraia-bambusicola-using-crispr-cas9-system
#14
Huaxiang Deng, Ruijie Gao, Xiangru Liao, Yujie Cai
Shiraia bambusicola can produce a type of hypocrellin, which is applied in antibacterial, antitumoral, and antiviral areas. Studies on the hypocrellin pathway have not been confirmed due to the deficiency of suitable genetic methods We constructed a clustered regularly interspaced short palindromic repeat sequences (CRISPR)/Cas9 system in Shiraia sp. SUPER-H168 and targeted a polyketide synthase (SbaPKS). No hypocrellin production was detected in the ΔSbaPKS mutant. Relative expression levels of SbaPKS and its adjacent genes were extremely down-regulated in the ΔSbaPKS mutant compared to those in the wild strain...
July 6, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28686465/characterization-and-primary-functional-analysis-of-a-bamboo-zep-gene-from-phyllostachys-edulis
#15
Yongfeng Lou, Huayu Sun, Lichao Li, Hansheng Zhao, Zhimin Gao
Zeaxanthin epoxidase (ZEP) plays important roles in plant response to various environmental stresses by involving in abscisic acid (ABA) biosynthesis and xanthophyll cycle. A full-length cDNA of PeZEP was isolated from moso bamboo (Phyllostachys edulis), which comprised of a 138-bp 5'-untranslated region (UTR), a 381-bp 3'-UTR, and a 2013-bp open reading frame (ORF) encoding a putative protein of 670 amino acids. PeZEP was mainly expressed in leaf blades and leaf sheaths, and less in roots and culms. The transcript level of PeZEP in bamboo leaf was elevated with the increasing light intensity...
July 7, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28685014/breeding-system-and-pollination-of-two-closely-related-bamboo-species
#16
Ling-Na Chen, Yong-Zhong Cui, Khoon-Meng Wong, De-Zhu Li, Han-Qi Yang
An understanding of the breeding systems and pollination of agriculturally important plants is critical to germplasm improvement. Breeding system characteristics greatly influence the amount and spatial distribution of genetic variation within and amongst populations and influence the rarity and extinction vulnerability of plant species. Many woody bamboos have a long vegetative period (20-150 years) followed by gregarious monocarpy. Relatively, little is known about their pollination and breeding systems...
May 2017: AoB Plants
https://www.readbyqxmd.com/read/28679066/agro-waste-biosorbents-effect-of-physico-chemical-properties-on-atrazine-and-imidacloprid-sorption
#17
Abhishek Mandal, Neera Singh, Lata Nain
Low cost agro-waste biosorbents namely eucalyptus bark (EB), corn cob (CC), bamboo chips (BC), rice straw (RS) and rice husk (RH) were characterized and used to study atrazine and imidacloprid sorption. Adsorption studies suggested that biosorbents greatly varied in their pesticide sorption behaviour. The EB was the best biosorbent to sorb both atrazine and imidacloprid with KF values of 169.9 and 85.71, respectively. The adsorption isotherm were nonlinear in nature with slope (1/n) values <1. The Freundlich constant Correlating atrazine/imidacloprid sorption parameter [KF...
July 5, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28671536/paenibacillus-polysaccharolyticus-sp-nov-a-xylanolytic-and-cellulolytic-bacteria-isolated-from-leaves-of-bamboo-phyllostachys-aureosulcata
#18
Munusamy Madhaiyan, Selvaraj Poonguzhali, Venkatakrishnan Sivaraj Saravanan, Veeramuthu Duraipandiyan, Naif Abdullah Al-Dhabi, Soon-Wo Kwon, William B Whitman
A novel xylanolytic and cellulolytic strain, BL9T, was isolated from leaves of the Bamboo plants maintained at the Tamil Nadu Agricultural University Campus, Coimbatore, India. On the basis of the results of 16S rRNA gene analysis, it was determined to be phylogenetically close to the type strains of Paenibacillus amylolyticus NRRL NRS-290T (98.3 %), Paenibacillus barcinonensis BP-23T (98.1 %), Paenibacillus tundrae A10bT (98.0 %) and Paenibacillus xylanexedens B22aT (97.6 %). The strain stained Gram variable and was aerobic, motile and catalase- and oxidase-positive, with rod-shaped cells...
July 3, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28669805/in-vivo-diabetic-wound-healing-potential-of-nanobiocomposites-containing-bamboo-cellulose-nanocrystals-impregnated-with-silver-nanoparticles
#19
Rubbel Singla, Sourabh Soni, Vikram Patial, Pankaj Markand Kulurkar, Avnesh Kumari, Mahesh S, Yogendra S Padwad, Sudesh Kumar Yadav
In diabetes, hyperglycemic state immensely hinders the wound healing. Here, nanobiocomposites (NCs) developed by impregnation of in situ prepared silver nanoparticles in the matrix of bamboo cellulose nanocrystals were investigated for their ability to hasten the progress of healing events in streptozotocin induced diabetic mice model. Wounds treated with topically applied NCs (hydrogels) showed full recovery (98-100%) within 18days post wounding in contrast to the various control groups where incomplete healing (88-92%) was noticed...
June 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28666450/plants-as-highly-diverse-sources-of-construction-wood-handicrafts-and-fibre-in-the-heihe-valley-qinling-mountains-shaanxi-china-the-importance-of-minor-forest-products
#20
Jin Kang, Yongxiang Kang, Jing Feng, Mengying Liu, Xiaolian Ji, Dengwu Li, Kinga Stawarczyk, Łukasz Łuczaj
BACKGROUND: Chinese rural communities living among species-rich forests have little documentation on species used to make handicrafts and construction materials originating from the surrounding vegetation. Our research aimed at recording minor wood uses in the Heihe valley in the Qinling mountains. METHODS: We carried out 37 semi-structured interviews in seven villages. RESULTS: We documented the use of 84 species of plants. All local large canopy trees are used for some purpose...
June 30, 2017: Journal of Ethnobiology and Ethnomedicine
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