keyword
MENU ▼
Read by QxMD icon Read
search

sp

keyword
https://www.readbyqxmd.com/read/28109209/nostoc-thermotolerans-sp-nov-a-soil-dwelling-species-of-nostoc-cyanobacteria-isolated-from-madhya-pradesh-india
#1
Archana Suradkar, Chelsea Villanueva, Lira A Gaysina, Dale A Casamatta, Aniket Saraf, Gandhali Dighe, Ratnaprabha Mergu, Prashant Singh
A filamentous, soil dwelling cyanobacterial strain (9C-PS) was isolated from Mandsaur, Madhya Pradesh, India and is being described as new species of Nostoc. Extensive morphological and molecular characterization along with thorough assessment of ecology was performed. The style of filament orientation, type and nature of the sheath (e.g., distribution and visibility across the trichome), and vegetative and heterocyte cell dimensions and shape were assessed for more than a year employing both culture and naturally occurring samples...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109208/psychromonas-aquatilis-sp-nov-isolated-from-water-samples-obtained-in-the-chilean-antarctica
#2
Peter Kämpfer, Rute Irgang, Mathías Poblete-Morales, Stefanie P Glaeser, Marcelo Cortez-San Martín, Ruben Avendaño-Herrera
One slightly beige-white pigmented, Gram-staining negative, rod-shaped bacterium, strain M1A1T, was isolated from seawater samples obtained in Fildes Bay, Antarctica (62º12´S, 58º57´W). Phylogenetic analysis based on nearly full-length 16S rRNA gene sequences showed that the isolate shared 98.4 % 16S rRNA gene sequence identity to the type strain of the species Psychromonas arctica, but less than 97 % 16S rRNA gene sequence similarities to all other Psychromonas species. DNA-DNA hybridisation (DDH) with Psychromonas arctica DSM 14288T showed low values (21 %, reciprocal 27 %)...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109207/rhodohalobacter-halophilus-gen-nov-sp-nov-a-moderately-halophilic-member-of-the-family-balneolaceae
#3
Jun Xia, Zhi-Hong Xie, Christopher A Dunlap, Alejandro P Rooney, Zong-Jun Du
A novel Gram-stain-negative, rod-shaped, facultatively anaerobic, oxidase-negative and catalase-positive bacterium, designated JZ3C29T, was isolated from a saltern located in Feicheng, China. Strain JZ3C29T was tolerant to moderate salt conditions. Optimal growth occurred at 40 °C (range 20-50 °C) and pH 7.5-8.5 (range pH 7.0-9.0) with 8-10 % (w/v) NaCl (range 2-16 %). Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain JZ3C29T shared highest similarity with Gracilimonas tropica CL-CB462T (90...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109206/proposal-of-mucilaginibacter-galii-sp-nov-isolated-from-leaves-of-galium-album
#4
Ebru L Aydogan, Hans-Jürgen Busse, Gerald Moser, Christoph Müller, Peter Kämpfer, Stefanie P Glaeser
A pale pink pigmented, Gram-stain-negative, rod-shaped, non-spore forming bacterial strain, PP-F2F-G47T, was isolated from the phyllosphere of the herbaceous plant Galium album. Phylogenetic analysis based on nearly full-length 16S rRNA gene sequence showed highest sequence similarity to type strains of the species Mucilaginibacter daejeonensis (96.2 %), Mucilaginibacter dorajii (95.7 %), and Mucilaginibacter phyllosphaerae (95.5 %). 16S rRNA gene-sequence similarities to all other type strains were below 95...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109205/haloterrigena-mahii-sp-nov-an-extreme-halophilic-archaeon-from-the-solar-saltern
#5
Jiun-Yan Ding, Sheng-Chung Chen, Mei-Chin Lai, Tsai-Ling Liao
A pleomorphic, gas vesicle containing, halophilic archaeon, designated strain H13T, was isolated from the solar saltern of the Western Salt Co., Chula Vista, California, USA. Cells of strain H13T were non-motile, rod-shaped and 3-10 μm in length. The optimum growth conditions were 3.5-5.0 M NaCl, 45-55 oC, and pH range of 6.5-8.2. The major polar lipids were C20C20 and C20C25 derivatives of phosphatidylglycerol (PG), phosphatidylglycerol phosphate methyl ester (PGP-Me) and disulfated diglycosyl diether-1 (S2-DGD-1)...
January 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109204/aquaspirillum-soli-sp-nov-isolated-from-a-soil-sample-in-the-people-s-republic-of-china
#6
Gabriela Moya, Huan Trinh, Zheng-Fei Yan, KyungHwa Won, Jung-Eun Yang, Qi-Jun Wang, MooChang Kook, Tae-Hoo Yi
A Gram-stain-negative, smooth, opaque, white pigmented, helical-shaped and motile bacterium by means of bipolar tufts of flagella, catalase- and oxidase-positive, grew under microaerophilic conditions, was isolated from soil sample of a reed pond in Shangqiu, Henan province, P. R. China. The strain named THG-SQE6T grows well at 25-42 oC, pH 6.5-7.5 and in the presence of 0-1 % (w/v) NaCl. The phylogenetic analysis based on 16S rRNA gene sequence showed that the strain THG-SQE6T was most closely related to Aquaspirillum serpens IAM 13944T (97...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109203/pedobacter-lusitanus-sp-nov-a-new-bacterial-species-isolated-from-sludge-of-a-deactivated-uranium-mine-in-portugal
#7
Cláudia Covas, Tânia Caetano, Andreia Cruz, Tiago Santos, Liliana Dias, Guenter Klein, Amir Abdulmawjood, Luiz Rodríguez-Alcalá, Lígia Pimentel, Ana Gomes, Ana Cristina Freitas, Alba Garcia-Serrano, Javier Fontecha, Sónia Mendo
Strain NL19T is a Gram negative aerobic bacterium that was isolated from sludge of a deactivated uranium mine in Portugal. 16S rRNA gene sequence analysis revealed that strain NL19T is a member of the genus Pedobacter and closely related to the strains Pedobacter himalayensis MTCC 6384T, Pedobacter cryoconitis DSM 14825T, Pedobacter westerhofensis DSM 19036T and P. hartonius DSM 19033T. It has a DNA G+C content of 40.8 mol%, which agreed with the genus description. The main fatty acids include C16:1 9c, C14:1 9c, C4:0, Iso-C17:0, Iso-C17:0 3-OH, C16:0, Anteiso-C15:0 and Iso-C15:0 3-OH...
January 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109202/algoriphagus-resistens-sp-nov-isolated-from-marine-sediment
#8
Ji-Ru Han, Jin-Xin Zhao, Zong-Jie Wang, Guan-Jun Chen, Zong-Jun Du
Strain NH1T, a pink-pigmented, facultatively anaerobic, heterotrophic, catalase-positive and oxidase-negative, Gram-stain-negative marine bacterium, was isolated from marine sediment in the coast of Weihai, China. Cells of strain NH1T was rod-shaped, 0.8-2.0 µm in length and 0.5 µm in width. The strain able to grow at 13-37 °C, pH 5.5-8.5, in the presence of 0.0-8.0% (w/v) NaCl. Optimal growth was observed at 28 °C, with 3.0% (w/v) NaCl and pH 6.5-7.0. Nitrate was reduced. The G+C content of the DNA was 41...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28109200/arcobacter-lekithochrous-sp-nov-a-new-species-isolated-from-a-molluscan-hatchery-in-norway
#9
Ana L Diéguez, Sabela Balboa, Thorolf Magnesen, Jesús L Romalde
Four bacterial strains, LFT 1.7T, LT2C 2.5, LT4C 2.8 and TM 4.6, were isolated from Great scallop (Pecten maximus) larvae and tank seawater in a Norwegian hatchery and characterized by a polyphasic approach including phenotypic, chemotaxonomic and genomic traits. All of them were Gram-negative and motile rods, oxidase and catalase positive and required sea salts for growth. Major fatty acids present were Summed Feature 3 (C16:1ω7c/C16:1 ω6c), Summed Feature 8 (C18:1ω7c or C18:1 ω6c), C16:0, C14:0, Summed Feature 2 (C14:0 3OH/C16:1 iso I), C12:0 3OH and C12:0...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28108865/transition-from-exponential-to-linear-photoautotrophic-growth-changes-the-physiology-of-synechocystis-sp-pcc-6803
#10
R M Schuurmans, J C P Matthijs, K J Hellingwerf
Phototrophic microorganisms like cyanobacteria show growth curves in batch culture that differ from the corresponding growth curves of chemotrophic bacteria. Instead of the usual three phases, i.e., lag-, log-, and stationary phase, phototrophs display four distinct phases. The extra growth phase is a phase of linear, light-limited growth that follows the exponential phase and is often ignored as being different. Results of this study demonstrate marked growth phase-dependent alterations in the photophysiology of the cyanobacterium Synechocystis sp...
January 20, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28108864/is-raf1-protein-from-synechocystis-sp-pcc-6803-really-needed-in-the-cyanobacterial-rubisco-assembly-process
#11
Piotr Kolesinski, Malgorzata Rydzy, Andrzej Szczepaniak
Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) is responsible for carbon dioxide conversion during photosynthesis and, therefore, is the most important protein in biomass generation. Modifications of this biocatalyst toward improvements in its properties are hindered by the complicated and not yet fully understood assembly process required for the formation of active holoenzymes. An entire set of auxiliary factors, including chaperonin GroEL/GroES and assembly chaperones RbcX or Rubisco accumulation factor 1 (RAF1), is involved in the folding and subsequent assembly of Rubisco subunits...
January 20, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28108790/-treatment-of-supine-position-related-obstructive-sleep-apnea-with-smartphone-applications
#12
D Haas, R Birk, J T Maurer, K Hörmann, B A Stuck, J U Sommer
BACKGROUND: Positional obstructive sleep apnea (POSA) is common in mild and moderate forms of obstructive sleep apnea (OSA). Two smartphone applications (apps) professing to avoid the supine position (SP) are available: for Android the "Apnea Sleep Position Trainer" and for iOS the "SomnoPose-Sleep Position Monitor". The smartphone needs to be attached to the chest to recognize SP, which then triggers a vibration alarm. This is intended to encourage the patient to change position and the vibration stops as soon as SP is left...
January 20, 2017: HNO
https://www.readbyqxmd.com/read/28108749/deinococcus-malanensis-sp-nov-isolated-from-radiation-polluted-soil
#13
Jing Zhu, Shan-Hui Li, Qi-Yong Tang, Min Chu, Wei Wang, Nimaichand Salam, Li Li, Wael N Hozzein, Zhi-Dong Zhang, Wen-Jun Li
A Gram-staining positive, non-spore forming, short rod-shaped and coccus-shaped, non-motile, pink-colored, gamma- and UV-resistant strain, designated T93(T) was isolated from soil of Malan area in Xinjiang Uyghur Autonomous Region, Northwest China. The taxonomic position of the new isolate was determined using a polyphasic approach. Strain T93(T) shared the highest 16 S rRNA gene sequence similarity with Deinococcus deserti VCD115(T) (97.54%). The genomic DNA G+C content of the isolate T93(T) was 61.7 mol%...
January 20, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28108654/revealing-the-role-of-the-product-metal-in-dna-polymerase-%C3%AE-catalysis
#14
Lalith Perera, Bret D Freudenthal, William A Beard, Lee G Pedersen, Samuel H Wilson
DNA polymerases catalyze a metal-dependent nucleotidyl transferase reaction during extension of a DNA strand using the complementary strand as a template. The reaction has long been considered to require two magnesium ions. Recently, a third active site magnesium ion was identified in some DNA polymerase product crystallographic structures, but its role is not known. Using quantum mechanical/ molecular mechanical calculations of polymerase β, we find that a third magnesium ion positioned near the newly identified product metal site does not alter the activation barrier for the chemical reaction indicating that it does not have a role in the forward reaction...
January 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28108411/production-and-characterization-of-medium-chain-length-polyhydroxyalkanoates-copolymer-from-arctic-psychrotrophic-bacterium-pseudomonas-sp-pamc-28620
#15
Ganesan Sathiyanarayanan, Shashi Kant Bhatia, Hun-Suk Song, Jong-Min Jeon, Jun-Young Kim, Yoo Kyung Lee, Yun-Gon Kim, Yung-Hun Yang
Arctic psychrotrophic bacterium Pseudomonas sp. PAMC 28620 was found to produce a distinctive medium-chain-length polyhydroxyalkanoates (MCL-PHAs) copolymer when grown on structurally unrelated carbon sources including glycerol. The maximum MCL-PHAs copolymer yield was obtained about 52.18±4.12% from 7.95±0.66g/L of biomass at 144h of fermentation when 3% glycerol was used as sole carbon and energy source during the laboratory-scale bioreactor process. Characterization of the copolymer was carried out using fourier transform infrared spectroscopy (FTIR), gas chromatography-mass spectrometry (GC-MS), proton ((1)H) and carbon ((13)C) nuclear magnetic resonance spectroscopy (NMR), gel permeation chromatography (GPC), differential scanning calorimeter (DSC) and thermo-gravimetric analysis (TGA)...
January 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28108407/purification-and-characterization-of-an-extracellular-ribonuclease-from-a-bacillus-sp-rns3-kx966412
#16
Gupta Shruti, Singh Sukhdev, Kanwar Shamsher Singh
Ribonucleases (RNases) catalyze the degradation of ribonucleic acid (RNA) into smaller nucleotides. RNases display angiogenic, neurotoxic, antitumor and immunosuppressive properties. In the present study, an extracellular RNase was successfully purified to homogeneity from a Bacillus sp. RNS3 (KX966412) by salting out at 0-50% ammonium sulphate saturation followed by the gel permeation (Sephadex G-100) chromatography. The multistep purification resulted in 10.4 fold purification of RNase with a yield of 3.12%...
January 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28108368/efficacy-and-safety-of-intermittent-preventive-treatment-in-schoolchildren-with-sulfadoxine-pyrimethamine-sp-and-sp-plus-piperaquine-in-democratic-republic-of-the-congo-a-randomised-controlled-trial
#17
Junior R Matangila, Joachim Y Doua, Patrick Mitashi, Raquel Inocêncio da Luz, Pascal Lutumba, Jean Pierre Van Geertruyden
In endemic areas, malaria and its adverse effects in schoolchildren may be prevented by intermittent preventive treatment (IPTsc). However, the most appropriate drug regimen for IPTsc remains to be identified. A randomised controlled trial was conducted in Kinshasa, DRC. Enrolled schoolchildren were assigned to a passive control arm (n = 212), sulfadoxine/pyrimethamine (SP) (n = 202) or SP plus piperaquine (SP/PQ) (n = 202). The primary endpoint was haemoglobin (Hb) change. Secondary endpoints were anaemia, parasitaemia prevalence and clinical malaria incidence...
January 17, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28107448/potential-of-endophytic-fungi-isolated-from-cotton-roots-for-biological-control-against-verticillium-wilt-disease
#18
Yuan Yuan, Hongjie Feng, Lingfei Wang, Zhifang Li, Yongqiang Shi, LiHong Zhao, Zili Feng, Heqin Zhu
Verticillium wilt is a soil-borne disease, and severely limits the development of cotton production. To investigate the role of endophytic fungi on Verticillium wilt, CEF-818 (Penicillium simplicissimum), CEF-714 (Leptosphaeria sp.), CEF-642 (Talaromyces flavus.) and CEF-193 (Acremonium sp.) isolated from cotton roots were used to assess their effects against cotton wilt disease caused by a defoliating V. dahliae strain Vd080. In the greenhouse, all treatments significantly reduced disease incidence and disease index, with the control efficacy ranging from 26% (CEF-642) to 67% (CEF-818) at 25 days (d) after inoculation...
2017: PloS One
https://www.readbyqxmd.com/read/28106783/extract-of-polygala-tenuifolia-alleviates-stress-exacerbated-atopy-like-skin-dermatitis-through-the-modulation-of-protein-kinase-a-and-p38-mitogen-activated-protein-kinase-signaling-pathway
#19
Bongjun Sur, Bombi Lee, Ye Seul Yoon, Pooreum Lim, Riwon Hong, Mijung Yeom, Hyang Sook Lee, Hijoon Park, Insop Shim, Hyejung Lee, Young Pyo Jang, Dae-Hyun Hahm
Atopic dermatitis (AD) and stress create a vicious cycle: stress exacerbates atopic symptoms, and atopic disease elicits stress and anxiety. Targeting multiple pathways including stress and allergic inflammation is, therefore, important for treating AD. In this study, we investigated the remedial value of Polygala tenuifolia Willd. (PTW) for treating immobilization (IMO) stress-exacerbated atopy-like skin dermatitis and its underlying mechanism. Trimellitic anhydride (TMA) was applied to dorsal skin for sensitization and subsequently both ears for eliciting T-cell-dependent contact hypersensitivity in mice, which underwent 2 h-IMO stress and PTW administration for the latter 6 and 9 days in the ear exposure period of TMA, respectively...
January 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28106624/intraoperative-electrocochleography-a-window-into-endolymphatic-hydrops-in-a-patient-with-an-endolymphatic-sac-tumor
#20
William J Riggs, Dominic J Catalano, Michael S Harris, Oliver F Adunka, Aaron C Moberly
OBJECTIVES: Intraoperative electrocochleography (ECochG) provides valuable information regarding inner ear function during surgical procedures. Here, we report findings from ECochG collected at three time intervals during the management of a patient with symptoms of inner ear hydrops. PATIENTS: A 38-year-old man with an endolymphatic sac tumor who demonstrated classic Ménière's symptoms. INTERVENTIONS: Endolymphatic shunt, tumor biopsy, and definitive resection of an endolymphatic sac tumor...
January 18, 2017: Otology & Neurotology
keyword
keyword
58891
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"