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https://www.readbyqxmd.com/read/28645197/pht%C3%AE-promoted-mobilization-of-non-conjugative-resistance-plasmids-from-enterococcus-faecium-to-enterococcus-faecalis
#1
Laura Di Sante, Gianluca Morroni, Andrea Brenciani, Carla Vignaroli, Alberto Antonelli, Marco Maria D'Andrea, Andrea Di Cesare, Eleonora Giovanetti, Pietro E Varaldo, Gian Maria Rossolini, Francesca Biavasco
Objectives: : To analyse the recombination events associated with conjugal mobilization of two multiresistance plasmids, pRUM 17i48 and pLAG (formerly named pDO1-like), from Enterococcus faecium 17i48 to Enterococcus faecalis JH2-2. Methods: : The plasmids from two E. faecalis transconjugants (JH-4T, tetracycline resistant, and JH-8E, erythromycin resistant) and from the E. faecium donor (also carrying a pHTβ-like conjugative plasmid, named pHTβ 17i48 ) were investigated by several methods, including PCR mapping and sequencing, S1-PFGE followed by Southern blotting and hybridization, and WGS...
June 22, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28645091/a-survey-of-natural-terrestrial-and-airborne-radionuclides-in-moss-samples-from-the-peninsular-thailand
#2
Komrit Wattanavatee, Miodrag Krmar, Tripob Bhongsuwan
The aim of this study was to determine the activity concentrations of natural terrestrial radionuclides ((238)U, (226)Ra, (232)Th and (40)K) and airborne radionuclides ((210)Pb, (210)Pbex and (7)Be) in natural terrestrial mosses. The collected moss samples (46) representing 17 species were collected from 17 sampling localities in the National Parks and Wildlife Sanctuaries of Thailand, situated in the mountainous areas between the northern and the southern ends of peninsular Thailand (∼7-12 °N, 99-102 °E)...
June 20, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28645049/gaseous-elemental-mercury-in-the-marine-boundary-layer-and-air-sea-flux-in-the-southern-ocean-in-austral-summer
#3
Jiancheng Wang, Zhouqing Xie, Feiyue Wang, Hui Kang
Gaseous elemental mercury (GEM) in the marine boundary layer (MBL), and dissolved gaseous mercury (DGM) in surface seawater of the Southern Ocean were measured in the austral summer from December 13, 2014 to February 1, 2015. GEM concentrations in the MBL ranged from 0.4 to 1.9ngm(-3) (mean±standard deviation: 0.9±0.2ngm(-3)), whereas DGM concentrations in surface seawater ranged from 7.0 to 75.9pgL(-1) (mean±standard deviation: 23.7±13.2pgL(-1)). The occasionally observed low GEM in the MBL suggested either the occurrence of atmospheric mercury depletion in summer, or the transport of GEM-depleted air from the Antarctic Plateau...
June 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28644894/northward-dispersal-of-sea-kraits-laticauda-semifasciata-beyond-their-typical-range
#4
Jaejin Park, Il-Hun Kim, Jonathan J Fong, Kyo-Soung Koo, Woo-Jin Choi, Tein-Shun Tsai, Daesik Park
Marine reptiles are declining globally, and recent climate change may be a contributing factor. The study of sea snakes collected beyond their typical distribution range provides valuable insight on how climate change affects marine reptile populations. Recently, we collected 12 Laticauda semifasciata (11 females, 1 male) from the waters around southern South Korea-an area located outside its typical distribution range (Japan, China including Taiwan, Philippines and Indonesia). We investigated the genetic origin of Korean specimens by analyzing mitochondrial cytochrome b gene (Cytb) sequences...
2017: PloS One
https://www.readbyqxmd.com/read/28644882/a-spatially-explicit-risk-assessment-approach-cetaceans-and-marine-traffic-in-the-pelagos-sanctuary-mediterranean-sea
#5
Maria Grazia Pennino, Antonella Arcangeli, Vinícius Prado Fonseca, Ilaria Campana, Graham J Pierce, Andrea Rotta, Jose Maria Bellido
Spatially explicit risk assessment is an essential component of Marine Spatial Planning (MSP), which provides a comprehensive framework for managing multiple uses of the marine environment, minimizing environmental impacts and conflicts among users. In this study, we assessed the risk of the exposure to high intensity vessel traffic areas for the three most abundant cetacean species (Stenella coeruleoalba, Tursiops truncatus and Balaenoptera physalus) in the southern area of the Pelagos Sanctuary, which is the only pelagic Marine Protected Area (MPA) for marine mammals in the Mediterranean Sea...
2017: PloS One
https://www.readbyqxmd.com/read/28644576/size-dependency-of-tree-growth-response-to-drought-among-norway-spruce-and-european-beech-individuals-in-monospecific-and-mixed-species-stands
#6
Haiyu Ding, Hans Pretzsch, Gerhard Schütze, Thomas Rötzer
Climatic anomalies have resulted in changing forest productivity, increasing tree mortality in Central and Southern Europe. This has resulted in more severe and frequent ecological disturbances to the forest stands. This study analysed the size dependency of growth response to drought years based on 384 tree individuals of Norway spruce (Picea abies [L.] Karst.) and European beech (Fagus sylvatica [L.]) in Bavaria, Germany. Samples were collected in both monospecific and mixed-species stands. To quantify the growth response of drought stress, indices including basal area increment, resistance, recovery, and resilience were calculated from tree ring measurements of increment cores...
June 23, 2017: Plant Biology
https://www.readbyqxmd.com/read/28643983/-an-underestimated-cause-of-seizure-in-europe
#7
Chloé Godoffe, Pierrick Le Borgne, Claire Kam, Mihaela Mihalcea-Danciu, Pascal Bilbault, Philippe Kauffmann
Seizures are very common in the Emergency Department (ED). We present here a case of a young woman with neurocysticercosis ; a worldwide and nearly endemic cause of seizure in the southern hemisphere. Clinical manifestations are very different between patients from asymptomatic to life-threatening hydrocephalus. Diagnosis is based on a combination of clinical presentation, neuroimaging (CT and MRI) findings, history of exposure, and serologic testing.
June 14, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28642866/evaluation-of-serum-for-pathophysiological-effects-of-prolonged-low-salinity-water-exposure-in-displaced-bottlenose-dolphins-tursiops-truncatus
#8
Ruth Y Ewing, Blair Mase-Guthrie, Wayne McFee, Forrest Townsend, Charles A Manire, Michael Walsh, Rose Borkowski, Gregory D Bossart, Adam M Schaefer
We conducted a retrospective study of serum biochemistry and hematologic findings from displaced, out-of-habitat bottlenose dolphins (Tursiops truncatus) exposed to various low salinity environments in waters along the southern United States including southeastern Atlantic and northern Gulf of Mexico. Serum sodium, chloride, and calculated osmolality were significantly lower and below reference ranges in displaced animals compared to free-ranging case control animals. This suggests clinical hyponatremia, hypochloremia, and hypo-osmolality due to an uptake of low saline water from the environment...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28642589/multiple-origins-and-a-narrow-genepool-characterise-the-african-tea-germplasm-concordant-patterns-revealed-by-nuclear-and-plastid-dna-markers
#9
Moses Cheloti Wambulwa, Muditha Kasun Meegahakumbura, Samson Kamunya, Alice Muchugi, Michael Möller, Jie Liu, Jian-Chu Xu, De-Zhu Li, Lian-Ming Gao
Despite the highly economic value of tea in Africa, its genetic and geographic origins remain largely unexplored. Here we address this by collecting 439 samples across 11 countries in Africa and Asia to investigate the origin and genepool composition of African tea based on 23 nuclear microsatellites loci (nSSRs) and three cpDNA intergenic spacer regions. Our results indicated that the African tea represents a potpourri originating from multiple introductions over time. The nSSR analysis revealed that the majority (79%) of tea accessions collected in Africa belong to Indian Assam tea which have likely originated from India and/or Sri Lanka...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642090/temporary-removal-vaginal-sacral-colpopexy-a-natural-orifice-approach-to-a-gold-standard-procedure
#10
Charles R Hanes
The publisher regrets that this article has been temporarily removed. A replacement will appear as soon as possible in which the reason for the removal of the article will be specified, or the article will be reinstated. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our-business/policies/article-withdrawal.
June 20, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28641229/effects-of-short-term-invasion-of-spartina-alterniflora-and-the-subsequent-restoration-of-native-mangroves-on-the-soil-organic-carbon-nitrogen-and-phosphorus-stock
#11
Jianxiang Feng, Jian Zhou, Liming Wang, Xiaowei Cui, Cunxin Ning, Hao Wu, Xiaoshan Zhu, Guanghui Lin
The exotic cordgrass Spartina alterniflora has severely invaded the mangrove wetlands in southern China and ecological restoration using native mangroves was conducted in an attempt to control this invasive species. In this study, the contents and pools of soil organic carbon (SOC), total nitrogen (TN) and total phosphorus (TP) were quantified to investigate the invasive effects of S. alterniflora and then to evaluate whether the ecological restoration of native mangrove could reverse those effects. S. alterniflora only showed significantly higher organic carbon content in the surface 0-10 cm of soil than in the uninvaded mudflat...
June 15, 2017: Chemosphere
https://www.readbyqxmd.com/read/28640908/evaluating-diagnostic-tests-for-bovine-tuberculosis-in-the-southern-part-of-germany-a-latent-class-analysis
#12
Valerie-Beau Pucken, Gabriela Knubben-Schweizer, Dörte Döpfer, Andreas Groll, Angela Hafner-Marx, Stefan Hörmansdorfer, Carola Sauter-Louis, Reinhard K Straubinger, Pia Zimmermann, Sonja Hartnack
Germany has been officially free of bovine tuberculosis since 1996. However, in the last years there has been an increase of bovine tuberculosis cases, particularly in the southern part of Germany, in the Allgäu region. As a consequence a one-time tuberculosis surveillance program was revisited with different premortal and postmortal tests. The aim of this paper was to estimate diagnostic sensitivities and specificities of the different tests used within this surveillance program. In the absence of a perfect test with 100% sensitivity and 100% specificity, thus in the absence of a gold standard, a Bayesian latent class approach with two different datasets was performed...
2017: PloS One
https://www.readbyqxmd.com/read/28640885/phylogeography-of-a-tough-rock-survivor-in-european-dry-grasslands
#13
Daniela Listl, Peter Poschlod, Christoph Reisch
Phylogeographic analyses of plants in Europe have revealed common glacial refugia and migration routes for several trees and herbs with arctic-alpine distributions. The postglacial histories of dry grassland species in central Europe have rarely been analyzed, even though the extremely species-rich habitat is threatened. Sedum album (Crassulaceae) is a common inhabitant of rocky sites in central European dry grasslands. We inferred the phylogeographic history of S. album over its distribution range in Europe...
2017: PloS One
https://www.readbyqxmd.com/read/28640666/first-report-of-an-adult-tapeworm-cestoda-diphyllobothriidea-in-a-southern-sea-otter-enhydra-lutris-nereis
#14
Colleen Young, Melissa A Miller, Roman Kuchta, Jan Brabec, Seth D Newsome, Murray Dailey
We present a novel case of an intestinal cestode infection in a southern sea otter (Enhydra lutris nereis). The cestode species Diplogonoporus tetrapterus was confirmed genetically. Stable isotope analysis of whiskers collected from the sea otter did not confirm the consumption of fish as the route of exposure.
June 22, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28640351/occurrence-of-dendrocephalus-brasiliensis-pesta-1921-crustacea-anostraca-in-the-caras-river-southern-ceara-brazil
#15
Francisco R V Freita, Isis C DE Lucena, Damares R Alencar, Israel J M Santos, Allysson P Pinheiro
Occurrence of Dendrocephalus brasiliensis Pesta, 1921 (Crustacea, Anostraca) in the Caras river, southern Ceara, Brazil. The specimens were collected in March and April 2014. The new occurrence extends the distribution and update area of occupancy of the species, which is characterized by a specific habitat: temporary lakes.
April 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28640345/abundance-of-the-reef-building-petaloconchus-varians-gastropoda-vermetidae-on-intertidal-rocky-shores-at-ilha-grande-bay-southeastern-brazil
#16
André Breves, Maria Teresa M DE Széchy, Helena P Lavrado, Andrea O R Junqueira
The reef-building vermetid Petaloconchus varians occurs in the western Atlantic Ocean, from the Caribbean Sea to the southern coast of Brazil. The present study evaluated the abundance of P. varians on intertidal rocky shores in Ilha Grande Bay (Rio de Janeiro State), and characterized their reefs, describing the species density, besides the weight and the belt width of the reefs. Petaloconchus varians reefs were recorded at 25 sites, with rocky shores exposed to different wave action (very sheltered, sheltered, semi-exposed and exposed) and slopes (10° to 46°)...
April 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28640319/observational-constraints-on-particle-acidity-using-measurements-and-modelling-of-particles-and-gases
#17
J G Murphy, P K Gregoire, A G Tevlin, G R Wentworth, R A Ellis, M Z Markovic, T C VandenBoer
In many parts of the world, the implementation of air quality regulations has led to significant decreases in SO2 emissions with minimal impact on NH3 emissions. In Canada and the United States, the molar ratio of NH3 : SO2 emissions has increased dramatically between 1990 and 2014. In many regions of North America, this will lead the molar ratio of NHx : SO4, where NHx is the sum of particle phase NH4(+) and gas phase NH3, and SO4 is the sum of particle phase HSO4(-) and SO4(2-), to exceed 2. A thermodynamic model (E-AIM model II) is used to investigate the sensitivity of particle pH, and the gas-particle partitioning of NHx and inorganic nitrate, to the atmospheric NHx : SO4 ratio...
June 22, 2017: Faraday Discussions
https://www.readbyqxmd.com/read/28639699/an-evaluation-of-asymptomatic-dengue-infections-among-blood-donors-during-the-2014-dengue-outbreak-in-guangzhou-china
#18
Qiao Liao, Zhengang Shan, Min Wang, Jieting Huang, Ru Xu, Ke Huang, Xi Tang, Weiyun Zhang, Kenrad Nelson, Chengyao Li, Yongshui Fu, Xia Rong
In 2014, an outbreak of dengue virus (DENV) infection led to 45171clinical cases diagnosed in Guangdong province, southern China. However, the potential risk of blood donors asymptomatically infected with DENV has not been evaluated. In the current study we detected anti-DENV IgG antibody and RNA in volunteer Chinese blood donors. We found that anti-DENV IgG antibody was positively detected in 3.4% (51/1500) and two donors were detected as being DENV RNA positive out of 3000 blood samples. We concluded that the presence of potential DENV in blood donors might be potential risk for blood safety...
June 22, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28638314/in-person-retail-marketing-claims-in-tobacco-and-e-cigarette-shops-in-southern-california
#19
Joshua S Yang, Michele M Wood, Katelynn Peirce
BACKGROUND: E-cigarette use has been increasing in the United States, though knowledge of potential risks and harms associated with e-cigarette use is low. Marketing of e-cigarettes may serve as a source of information to shape beliefs and attitudes toward e-cigarettes. The purpose of this study was to identify the most common marketing claims made within "vape" and tobacco shops in sales interactions with customers in demographically diverse cities. METHODS: Vape and tobacco shops from three diverse cities in Southern California were selected for inclusion in the study...
2017: Tobacco Induced Diseases
https://www.readbyqxmd.com/read/28638066/mummified-oligocene-fruits-of-schima-theaceae-and-their-systematic-and-biogeographic-implications
#20
Xiang-Gang Shi, Qiong-Yao Fu, Jian-Hua Jin, Cheng Quan
The genus Schima includes about 20 species and is distributed only in southern China and adjacent areas of Asia. The previous molecular phylogenetic analysis suggested Schima is in the tribe Gordoniae, along with Gordonia and Franklinia. However, because few fossils have been reported, the biogeographic origin of Schima is still poorly known. In this paper mummified fossil fruits of Schima are described from the upper Oligocene Yongning Formation of the Nanning Basin, Guangxi, South China. In gross morphology, the new fossil species, Schima kwangsiensis, is similar to the extant S...
June 21, 2017: Scientific Reports
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