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https://www.readbyqxmd.com/read/28437605/aqueously-released-graphene-oxide-embedded-in-epoxy-resin-exhibits-different-characteristics-and-phytotoxicity-of-chlorella-vulgaris-from-the-pristine-form
#1
Xiangang Hu, Weilu Kang, Li Mu
The environmental release of nanoparticles is attracting increasing attention. Graphene oxide (GO) embedded in epoxy resin (ER) is a popular composite that has been used in various fields, but the environmental release of GO-ER composites and the effects on organisms in the environment remain unknown. The present work found that GO-ER composites in water for 2-7 days resulted in the release of 0.3-2.1% GO-ER at nanoscale (2-3 nm thickness and approximately 70-130 nm lateral length). Interestingly, pristine GO quenched 30-45% hydroxyl and 12% nitroxide free radicals, whereas this capacity was not observed for the released particles from GO-ER...
April 24, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28437139/protection-against-common-bean-rust-conferred-by-a-gene-silencing-method
#2
Bret Cooper, Kimberly B Campbell
Rust disease of the dry bean plant, Phaseolus vulgaris, is caused by the fungus Uromyces appendiculatus. The fungus acquires its nutrients and energy from bean leaves using a specialized cell structure, the haustorium, through which it secretes effector proteins that contribute to pathogenicity by defeating the plant immune system. Candidate effectors have been identified by DNA sequencing and motif analysis, and some candidates have been observed in infected leaves by mass spectrometry. To assess their roles in pathogenicity, we have inserted small fragments of genes for five candidates into bean pod mottle virus...
April 24, 2017: Phytopathology
https://www.readbyqxmd.com/read/28436827/reductive-precipitation-of-sulfate-and-soluble-fe-iii-by-desulfovibrio-vulgaris-electron-donor-regulates-intracellular-electron-flow-and-nano-fes-crystallization
#3
Chen Zhou, Yun Zhou, Bruce E Rittmann
Fully understanding the metabolism of SRB provides fundamental guidelines for allowing the microorganisms to provide more beneficial services in water treatment and resource recovery. The electron-transfer pathway of sulfate respiration by Desulfovibrio vulgaris is well studied, but still partly unresolved. Here we provide deeper insight by comprehensively monitoring metabolite changes during D. vulgaris metabolism with two electron donors, lactate and pyruvate, in presence or absence of citrate-chelated soluble Fe(III) as an additional competing electron acceptor...
April 19, 2017: Water Research
https://www.readbyqxmd.com/read/28435833/diet-in-acne-vulgaris-open-or-solved-problem
#4
Jakub Morze, Katarzyna Eufemia Przybylowicz, Anna Danielewicz, Małgorzata Obara-Golebiowska
No abstract text is available yet for this article.
March 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28434820/interrelationships-of-metal-transfer-factor-under-wastewater-reuse-and-soil-pollution
#5
D Papaioannou, I K Kalavrouziotis, P H Koukoulakis, F Papadopoulos, P Psoma
The transfer of heavy metals under soil pollution wastewater reuse was studied in a Greenhouse experiment using a randomized block design, including 6 treatments of heavy metals mixtures composed of Zn, Mn, Cd, Co, Cu, Cr, Ni, and Pb, where each metal was taking part in the mixture with 0, 10, 20, 30, 40, 50 mg/kg respectively, in four replications. The Beta vulgaris L (beet) was used as a test plant. It was found that the metal transfer factors were statistically significantly related to the: (i) DTPA extractable soil metals, (ii) the soil pollution level as assessed by the pollution indices, (iii) the soil pH, (iv) the beet dry matter yield and (v) the interactions between the heavy metals in the soil...
April 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28434025/erratum-to-identification-of-molecular-variants-of-the-nonrestoring-restorer-of-fertility-1-allele-in-sugar-beet-beta-vulgaris-l
#6
Takashi Ohgami, Daisuke Uchiyama, Sachiyo Ue, Rika Yui-Kurino, Yu Yoshida, Yoko Kamei, Yosuke Kuroda, Kazunori Taguchi, Tomohiko Kubo
No abstract text is available yet for this article.
April 22, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/28432566/four-new-species-of-dactylogyrus-diesing-1850-monogenea-dactylogyridae-parasitising-the-gills-of-northern-moroccan-luciobarbus-heckel-cyprinidae-morphological-and-molecular-characterisation
#7
Imane Rahmouni, Eva Řehulková, Antoine Pariselle, Ouafae Berrada Rkhami, Andrea Šimková
Four new species of Dactylogyrus Diesing, 1850 are described from the gills of three species of Luciobarbus Heckel collected from various hydrographical basins in northern Morocco: Dactylogyrus scorpius n. sp. from Luciobarbus rifensis Doadrio, Casal-Lopez & Yahyaoui; D. benhoussai n. sp. from L. moulouyensis Pellegrin; and D. varius n. sp. and D. falsiphallus n. sp. from L. maghrebensis Doadrio, Perea & Yahyaoui. The descriptions of the new species are confirmed by molecular data (partial 18S rDNA, ITS1, and partial 28S rDNA sequences)...
April 21, 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28431948/serum-peptides-as-putative-modulators-of-inflammation-in-psoriasis
#8
Tetsuhiko Matsuura, Masaaki Sato, Kouhei Nagai, Toshiyuki Sato, Mitsumi Arito, Kazuki Omoteyama, Naoya Suematsu, Kazuki Okamoto, Tomohiro Kato, Yoshinao Soma, Manae S Kurokawa
BACKGROUND: Psoriasis is a refractory inflammatory disease, however, its pathophysiology is still not fully understood. OBJECTIVE: We tried to identify novel serum peptides associated with the pathophysiology of psoriasis. METHODS: Serum peptides from 24 patients with psoriasis vulgaris (PV), 10 patients with psoriatic arthritis (PsA), 14 patients with atopic dermatitis (AD), and 23 healthy control (HC) subjects were analyzed by mass spectrometry...
March 27, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/28431374/atmospheric-fallout-radionuclides-in-peatland-from-southern-poland
#9
Tomasz Mróz, Edyta Łokas, Justyna Kocurek, Michał Gąsiorek
Two peat profiles were collected in a peat bog located in Southern Poland and their geochronology were determined using (210)Pb, (238,239+240)Pu and (137)Cs radiometric techniques. The (210)Pb chronologies were established using the constant rate of supply model (CRS) and are in good agreement with the Pu isotopes and (137)Cs time markers. Maximum activities of Pu isotopes were found at a depth corresponding to the early 1960s, which is the period characterized by the maximum nuclear weapon tests. The results showed that the (210)Pb method is the most accurate technique for the determination age and accumulation rate of a peat...
April 18, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28429105/increased-expression-of-upa-upar-and-pai-1-in-psoriatic-skin-and-in-basal-cell-carcinomas
#10
K A Rubina, V Yu Sysoeva, E I Zagorujko, Z I Tsokolaeva, M I Kurdina, Ye V Parfyonova, V A Tkachuk
There is substantial evidence implicating the urokinase system in tissue remodeling during neo-vascularization, inflammation, tumor invasion, and metastasis. Regulated degradation of the extracellular matrix at the leading edge of migrating cells, mediated by uPA and uPAR, is required for tissue remodeling, invasiveness, and angiogenesis. Psoriasis and basal cell carcinoma (BCC) are the most common skin diseases. Pathogenesis of both of them is associated with keratinocyte hyperproliferation, inflammatory cell migration, and angiogenesis-processes in which the plasminogen system (uPA, uPAR, tPA, and PAI-1) plays a crucial role...
April 20, 2017: Archives of Dermatological Research
https://www.readbyqxmd.com/read/28425503/nerve-degeneration-and-regeneration-in-the-cephalopod-mollusc-octopus-vulgaris-the-case-of-the-pallial-nerve
#11
Pamela Imperadore, Sameer B Shah, Helen P Makarenkova, Graziano Fiorito
Regeneration is a process that restores structure and function of tissues damaged by injury or disease. In mammals complete regeneration is often unsuccessful, while most of the low phyla animals can re-grow many parts of their body after amputation. Cephalopod molluscs, and in particular Octopus vulgaris, are well known for their capacity to regenerate their arms and other body parts, including central and peripheral nervous system. To better understand the mechanism of recovery following nerve injury in this species we investigated the process of axon regrowth and nerve regeneration after complete transection of the Octopus pallial nerves...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28425242/evaluation-of-serum-uric-acid-levels-in-psoriasis-vulgaris
#12
Emrah Yilmaz, Emine Tamer, Ferda Artüz, Seray Külcü Çakmak, Fürüzan Köktürk
BACKGROUND/AIM: Psoriasis has been accepted as a systemic disease and it is known to be associated with various disorders including metabolic syndrome. High serum uric acid levels are also associated with the components of metabolic syndrome. In this study, we aimed to determine serum uric acid levels in patients with psoriasis and the association of uric acid levels with disease activity by taking the presence of metabolic syndrome criteria into account, since it is one of the most important factors that affect serum uric acid levels...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424722/the-role-of-auxin-ethylene-crosstalk-in-orchestrating-primary-root-elongation-in-sugar-beet
#13
Willem Abts, Bert Vandenbussche, Maurice P De Proft, Bram Van de Poel
It is well-established in Arabidopsis and other species that ethylene inhibits root elongation through the action of auxin. In sugar beet (Beta vulgaris L.) ethylene promotes root elongation in a concentration dependent manner. However, the crosstalk between ethylene and auxin remains unknown during sugar beet seedling development. Our experiments have shown that exogenously applied auxin (indole-3-acetic acid; IAA) also stimulates root elongation. We also show that auxin promotes ethylene biosynthesis leading to longer roots...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28423428/aggregation-behavior-and-a-putative-aggregation-pheromone-in-sugar-beet-root-maggot-flies-diptera-ulidiidae
#14
Erik J Wenninger, Susan Y Emmert, Kelly Tindall, Hongjian Ding, Mark A Boetel, D Rajabaskar, Sanford D Eigenbrode
Male-biased aggregations of sugar beet root maggot, Tetanops myopaeformis (Röder) (Diptera: Ulidiidae), flies were observed on utility poles near sugar beet (Beta vulgaris L. [Chenopodiaceae]) fields in southern Idaho; this contrasts with the approximately equal sex ratio typically observed within fields. Peak observation of mating pairs coincided with peak diurnal abundance of flies. Volatiles released by individual male and female flies were sampled from 08:00 to 24:00 hours in the laboratory using solid-phase microextraction and analyzed using gas chromatography/mass spectrometry (GC/MS)...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28420190/overexpression-of-s-adenosyl-l-methionine-synthetase-2-from-sugar-beet-m14-increased-arabidopsis-tolerance-to-salt-and-oxidative-stress
#15
Chunquan Ma, Yuguang Wang, Dan Gu, Jingdong Nan, Sixue Chen, Haiying Li
The sugar beet monosomic addition line M14 is a unique germplasm that contains genetic materials from Beta vulgaris L. and Beta corolliflora Zoss, and shows tolerance to salt stress. Our study focuses on exploring the molecular mechanism of the salt tolerance of the sugar beet M14. In order to identify differentially expressed genes in M14 under salt stress, a subtractive cDNA library was generated by suppression subtractive hybridization (SSH). A total of 36 unique sequences were identified in the library and their putative functions were analyzed...
April 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28419704/robustness-of-a-model-microbial-community-emerges-from-population-structure-among-single-cells-of-a-clonal-population
#16
Anne W Thompson, Serdar Turkarslan, Christina E Arens, Adrián López García de Lomana, Arjun V Raman, David A Stahl, Nitin S Baliga
Microbial populations can withstand, overcome, and persist in the face of environmental fluctuation. Previously we demonstrated how conditional gene regulation in a fluctuating environment drives dilution of condition-specific transcripts, causing a population of Desulfovibrio vulgaris Hildenborough (DvH) to collapse after repeatedly transitioning from sulfate respiration to syntrophic conditions with the methanogen Methanococcus maripaludis. Failure of the DvH to successfully transition contributed to the collapse of this model community...
April 17, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28419600/reformulations-of-well-known-active-ingredients-in-the-topical-treatment-of-psoriasis-vulgaris-can-improve-clinical-outcomes-for-patients
#17
REVIEW
L Iversen, E Dauden, S Segaert, K Freeman, S Magina, D Rigopoulos, D Thaci
BACKGROUND: Although the majority of patients with psoriasis vulgaris are treated exclusively with topical therapies, research to develop more effective topical therapies that are associated with higher patient satisfaction has lagged behind the development of systemic agents. OBJECTIVE: The aim of this literature review was to determine whether there is documented evidence that applying an innovative approach to improving the formulation of active ingredients commonly used in the topical treatment of psoriasis can have a positive effect on clinical outcomes and patient-reported outcomes (PROs)...
April 17, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28417328/characterization-and-pyrolysis-of-chlorella-vulgaris-and-arthrospira-platensis-potential-of-bio-oil-and-chemical-production-by-py-gc-ms-analysis
#18
Hanna N Almeida, Guilherme Q Calixto, Bruna M E Chagas, Dulce M A Melo, Fabio M Resende, Marcus A F Melo, Renata Martins Braga
Biofuels have been seen as potential sources to meet future energy demand as a renewable and sustainable energy source. Despite the fact that the production technology of first-generation biofuels is consolidated, these biofuels are produced from foods crops such as grains, sugar cane, and vegetable oils competing with food for crop use and agricultural land. In recent years, it was found that microalgae have the potential to provide a viable alternative to fossil fuels as source of biofuels without compromising food supplies or arable land...
April 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28417249/virus-vector-relationship-in-the-citrus-leprosis-pathosystem
#19
Aline Daniele Tassi, Laura Cristina Garita-Salazar, Lilian Amorim, Valdenice Moreira Novelli, Juliana Freitas-Astúa, Carl C Childers, Elliot W Kitajima
Citrus leprosis has been one of the most destructive diseases of citrus in the Americas. In the last decade important progress has been achieved such as the complete genome sequencing of its main causal agent, Citrus leprosis virus C (CiLV-C), belonging to a new genus Cilevirus. It is transmitted by Brevipalpus yothersi Baker (Acari: Tenuipalpidae), and is characterized by the localized symptoms it induces on the leaves, fruits and stems. It occurs in the American continents from Mexico to Argentina. The virus was until recently considered restricted to Citrus spp...
April 17, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28416870/antagonistic-activity-of-thymus-vulgaris-extracts-against-vibrio-species-isolated-from-seafoods
#20
Chigozie Eunice Oramadike, Samuel Temitope Ogunbanwo
This study examined the antibacterial activity of Thymus vulgaris on multiple antibiotic resistant (MAR) Vibrio parahaemolyticus and Vibrio fluvialis isolated from shrimps. The ethanol extract of T. vulgaris antibacterial properties was assessed using the agar diffusion method. Survival of test organisms in shrimp meat using different concentrations of T. vulgaris was done using standard method. The quantitative and qualitative phytochemical tests of T. vulgaris extract were determined. The ethanol extract had antimicrobial activities on the test organisms showing 20...
April 2017: Journal of Food Science and Technology
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