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https://www.readbyqxmd.com/read/29040846/salt-tolerance-aerobic-granular-sludge-formation-and-microbial-community-characteristics
#1
Dong Ou, Hui Li, Wei Li, Xiao Wu, Yi-Qiao Wang, Yong-di Liu
The salt-tolerance aerobic granular sludge (SAGS) dominated by moderately halophilic bacteria was successfully cultured in a 9% (w/v) salty, lab-scale sequence batch reactor (SBR) system. Influence of high salinity (0-9% w/v NaCl) on the formation, performance and microbial succession of the SAGS were explored. Crystal nucleus hypothesis, selection pressure hypothesis and compressed double electric layers hypothesis were used to discuss the formation mechanism of SAGS. Notably, salinity could be seen as a kind of selection pressure contributed to the formation of SAGS, while salinity also declined the performance of SAGS system...
July 28, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29040755/the-omics-dashboard-for-interactive-exploration-of-gene-expression-data
#2
Suzanne Paley, Karen Parker, Aaron Spaulding, Jean-Francois Tomb, Paul O'Maille, Peter D Karp
The Omics Dashboard is a software tool for interactive exploration and analysis of gene-expression datasets. The Omics Dashboard is organized as a hierarchy of cellular systems. At the highest level of the hierarchy the Dashboard contains graphical panels depicting systems such as biosynthesis, energy metabolism, regulation and central dogma. Each of those panels contains a series of X-Y plots depicting expression levels of subsystems of that panel, e.g. subsystems within the central dogma panel include transcription, translation and protein maturation and folding...
October 13, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29040474/co-occurrence-of-genes-for-aerobic-and-anaerobic-biodegradation-of-dichloroethane-in-organochlorine-contaminated-groundwater
#3
Jacob E Munro, Önder Kimyon, Deborah J Rich, Joanna Koenig, Sihui Tang, Adrian Low, Matthew Lee, Mike Manefield, Nicholas V Coleman
1,2-dichloroethane (DCA) is a problematic groundwater pollutant. Factors influencing the distribution and activities of DCA-degrading bacteria are not well-understood, which has hampered their application for bioremediation. Here, we used quantitative PCR (qPCR) to investigate the distribution of putative DCA-dehalogenating bacteria at a DCA-impacted site in Sydney (Australia). The dehalogenase genes dhlA, tceA and bvcA were detected in all groundwater samples (n = 15), while vcrA was found in 11/15 samples...
October 12, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/29040224/fes-assisted-cycling-improves-aerobic-capacity-and-locomotor-function-post-cva
#4
Stacey E Aaron, Catherine J VanDerwerker, Aaron E Embry, Jennifer H Newton, Samuel C K Lee, Chris M Gregory
PURPOSE: After a cerebrovascular accident (CVA) aerobic deconditioning contributes to diminished physical function. Functional Electrical Stimulation (FES)-assisted cycling is a promising exercise paradigm designed to target both aerobic capacity and locomotor function. This pilot study aimed to evaluate the effects of an FES-assisted cycling intervention on aerobic capacity and locomotor function in individuals post-CVA. METHODS: Eleven individuals with chronic (> 6 months) post-CVA hemiparesis completed an 8-week (3x/wk; 24 sessions) progressive FES-assisted cycling intervention...
October 16, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29040084/quantification-and-identification-of-aerobic-bacteria-in-holy-water-samples-from-a-german-environment
#5
Christoph König, Stephanie Tauchnitz, Heike Kunzelmann, Christian Horn, Frithjof Blessing, Matthias Kohl, Markus Egert
Despite its frequent use in many religious institutions, the microbiological quality of holy water is clearly underinvestigated. We analyzed the microbial load of 54 holy water samples, repeatedly taken in five Roman Catholic churches in the greater area of Villingen-Schwenningen, Germany, by means of aerobic colony counting and Matrix-Assisted Laser Desorption/Ionization (MALDI) Biotyping of representative isolates. Over all samples, colony counting indicated an average aerobic microbial load of 5.85 ± 3...
October 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/29036816/sex-difference-in-aerobic-exercise-efficacy-to-improve-cognition-in-older-adults-with-vascular-cognitive-impairment-secondary-analysis-of-a-randomized-controlled-trial
#6
Cindy K Barha, Ging-Yuek R Hsiung, John R Best, Jennifer C Davis, Janice J Eng, Claudia Jacova, Philip E Lee, Michelle Munkacsy, Winnie Cheung, Teresa Liu-Ambrose
Aerobic training (AT) is a promising, non-pharmacological intervention to mitigate the deleterious effects of aging and disease on brain health. However, a large amount of variation exists in its efficacy. This is a secondary analysis of a randomized controlled trial of AT in 71 older adults with subcortical ischemic vascular cognitive impairment (NCT01027858). Specifically, we investigated: 1) whether sex moderates the relationship between AT and executive functions, and 2) the role of brain derived neurotrophic factor (BDNF) and gains in functional fitness capacity...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29036762/low-intensity-aerobic-exercise-training-inhibition-of-skeletal-muscle-atrophy-in-high-fat-diet-induced-ovariectomized-rats
#7
Hye Jin Kim, Won Jun Lee
PURPOSE: Postmenopausal women are highly susceptible to diseases, such as obesity, type 2 diabetes, osteoporosis, or skeletal muscle atrophy and many people recognize the need for regular physical activity. Aerobic exercise training is known to improve the oxidative capacity and insulin sensitivity of skeletal muscles. This study aimed to investigate the role of low-intensity aerobic exercise training on skeletal muscle protein degradation or synthesis in the plantaris muscles of high-fat-fed ovariectomized rats...
September 30, 2017: Journal of Exercise Nutrition & Biochemistry
https://www.readbyqxmd.com/read/29036334/tet1-facilitates-hypoxia-tolerance-by-stabilizing-the-hif-%C3%AE-proteins-independent-of-its-methylcytosine-dioxygenase-activity
#8
Jing Wang, Dawei Zhang, Juan Du, Chi Zhou, Zhi Li, Xing Liu, Gang Ouyang, Wuhan Xiao
Because of the requirement of oxygen (O2) to produce energy, aerobic organisms developed mechanisms to protect themselves against a shortage of oxygen in both acute status and chronic status. To date, how organisms tolerate acute hypoxia and the underlying mechanisms remain largely unknown. Here, we identify that Tet1, one member of the ten-eleven translocation (TET) family of methylcytosine dioxygenases, is required for hypoxia tolerance in zebrafish and mice. Tet1-null zebrafish and mice are more sensitive to hypoxic conditions compared with their wild-type siblings...
September 28, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29036016/exercise-preserves-physical-function-in-prostate-cancer-patients-with-bone-metastases
#9
Daniel A Galvão, Dennis R Taaffe, Nigel Spry, Prue Cormie, David Joseph, Suzanne K Chambers, Raphael Chee, Carolyn Peddle-McIntyre, Nicolas H Hart, Freerk T Baumann, James Denham, Michael Baker, Robert U Newton
PURPOSE: The presence of bone metastases has excluded participation of cancer patients in exercise interventions and is a relative contraindication to supervised exercise in the community setting due to concerns of fragility fracture. We examined the efficacy and safety of a modular multi-modal exercise program in prostate cancer patients with bone metastases. METHODS: Between 2012 and 2015, 57 prostate cancer patients (70.0±8.4 years; BMI 28.7±4.0 kg/m) with bone metastases (pelvis 75...
October 14, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29035725/alterations-to-juvenile-zebrafish-danio-rerio-swim-performance-after-acute-embryonic-exposure-to-sub-lethal-exposures-of-hydraulic-fracturing-flowback-and-produced-water
#10
Erik J Folkerts, Tamzin A Blewett, Yuhe He, Greg G Goss
Hydraulic fracturing flowback and produced water (FPW) is a wastewater produced during fracturing activities in an operating well which is hyper saline and chemically heterogeneous in nature, containing both anthropogenic and petrogenic chemicals. Determination of FPW associated toxicity to embryonic fish is limited, while investigation into how embryonic exposures may affect later life stages is not yet studied. Zebrafish embryos (24hrs post fertilization) were acutely exposed to 2.5% and 5% FPW fractions for either 24 or 48hrs and returned to freshwater...
October 7, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29035598/rpe-during-concentric-and-eccentric-cycling-are-we-measuring-effort-or-exertion
#11
Luis Peñailillo, Karen Mackay, Chris R Abbiss
Despite the terms often being used interchangeably it has been suggested that perceptions of effort and perceptions of exertion may differ. Eccentric cycling may provide a model of exercise by which differences between these perceptions can be examined. PURPOSE: of this study was to examine and compare perceptions of effort and exertion during eccentric and concentric cycling at four intensities. METHODS: Ten healthy male participants (mean ± SD; age: 29.8 ± 2...
October 16, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29035022/microbial-diversity-and-iron-oxidation-at-okuoku-hachikurou-onsen-a-japanese-hot-spring-analog-of-precambrian-iron-formations
#12
L M Ward, A Idei, S Terajima, T Kakegawa, W W Fischer, S E McGlynn
Banded iron formations (BIFs) are rock deposits common in the Archean and Paleoproterozoic (and regionally Neoproterozoic) sedimentary successions. Multiple hypotheses for their deposition exist, principally invoking the precipitation of iron via the metabolic activities of oxygenic, photoferrotrophic, and/or aerobic iron-oxidizing bacteria. Some isolated environments support chemistry and mineralogy analogous to processes involved in BIF deposition, and their study can aid in untangling the factors that lead to iron precipitation...
November 2017: Geobiology
https://www.readbyqxmd.com/read/29034859/massilia-neuiana-sp-nov-isolated-from-wet-soil
#13
Xin Zhao, Xuejie Li, Nan Qi, Meijun Gan, Yujin Pan, Tianfang Han, Xiaomin Hu
A novel aerobic, Gram-stain-negative, rod-shaped, motile bacterium, strain PTW21(T), was isolated from wet soil. 16S rRNA gene sequence phylogenetic analysis of strain PTW21(T) revealed an affiliation to the genus Massilia and it shared 98.5 and 98.1 % similarity with Massilianiastensis 5516 S-1(T) and Massilia tieshanensis TS3(T), respectively. Growth occurred at 10-45 °C, pH 4.5-12.5 and NaCl concentrations up to 2 % (w/v). The major fatty acids were summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) and C16 : 0...
October 16, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29034858/streptomyces-kalpinensis-sp-nov-an-actinomycete-isolated-from-a-salt-water-beach
#14
Guo-Quan Ma, Zhan-Feng Xia, Chuan-Xing Wan, Yao Zhang, Xiao-Xia Luo, Li-Li Zhang
A novel actinobacterium designated TRM 46509(T) was isolated from a salt water beach at Kalpin, Xinjiang, north-west China. The strain was aerobic and Gram-stain-positive, with an optimum NaCl concentration for growth of 1 % (w/v). The isolate formed sparse aerial mycelium and produced spiral spores at the end of the aerial mycelium on Gauze's No. 1 medium. The isolate contained ll-diaminopimelic acid as the diagnostic diamino acid and ribose as the major whole-cell sugar. The polar lipids included diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, phosphatidylinositol, phosphatidylinositol mannosides and an unidentified phospholipid...
October 16, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29034851/nitrosopumilus-maritimus-gen-nov-sp-nov-nitrosopumilus-cobalaminigenes-sp-nov-nitrosopumilus-oxyclinae-sp-nov-and-nitrosopumilus-ureiphilus-sp-nov-four-marine-ammonia-oxidizing-archaea-of-the-phylum-thaumarchaeota
#15
Wei Qin, Katherine R Heal, Rasika Ramdasi, Julia N Kobelt, Willm Martens-Habbena, Anthony D Bertagnolli, Shady A Amin, Christopher B Walker, Hidetoshi Urakawa, Martin Könneke, Allan H Devol, James W Moffett, E Virginia Armbrust, Grant J Jensen, Anitra E Ingalls, David A Stahl
Four mesophilic, neutrophilic, and aerobic marine ammonia-oxidizing archaea, designated strains SCM1(T), HCA1(T), HCE1(T) and PS0(T), were isolated from a tropical marine fish tank, dimly lit deep coastal waters, the lower euphotic zone of coastal waters, and near-surface sediment in the Puget Sound estuary, respectively. Cells are straight or slightly curved small rods, 0.15-0.26 µm in diameter and 0.50-1.59 µm in length. Motility was not observed, although strain PS0(T) possesses genes associated with archaeal flagella and chemotaxis, suggesting it may be motile under some conditions...
October 16, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29034847/aurantimonas-aggregata-sp-nov-isolated-from-deep-sea-sediment
#16
An-Zhang Li, Long-Zhen Lin, Ming-Xia Zhang, Hong-Hui Zhu
A novel bacterium, designated R14M6(T), was isolated from deep-sea sediment collected from the Ross Sea, Antarctica. Cells are Gram-stain-negative, aerobic, pale yellow, short-rod-shaped, polar-flagellated and aggregate-forming. Growth occurs at 4-36 °C, pH 6.0-8.3, and in 1-15 % (w/v) NaCl. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain R14M6(T) clustered together with Aurantimonas endophytica EGI6500337(T) and fell within the genus Aurantimonas. The 16S rRNA gene sequence of strain R14M6(T) shared similarity with A...
October 16, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29034624/-effects-of-overexpression-of-carboxylation-pathway-genes-and-inactivation-of-malic-enzymes-on-malic-acid-production-in-escherichia-coli
#17
Fei Lou, Ning Li, Yujiao Zhao, Shiting Guo, Zhiwen Wang, Tao Chen
Malic acid is a dicarboxylic acid that is widely used in food, pharmaceutical and chemical industries. We studied the effects of overexpression of carboxylation pathway genes and inactivation of malic enzymes on the aerobic production of malic acid. Over expression of phosphoenolpyruvate (PEP) carboxylase (ppc) generated strain E21, which increased malic acid production from 0.57 g/L to 3.83 g/L. Then pyc gene from Coryenbacterium glutamicus and pck gene from Actinobacillus succinogenes were overexpressed in E21 separately...
November 25, 2016: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/29034615/effects-of-an-exercise-model-based-on-functional-circuits-in-an-older-population-with-different-levels-of-social-participation
#18
Walter Sepúlveda Loyola, Carlos Augusto Camillo, Carolina Valenzuela Torres, Vanessa Suziane Probst
AIM: To investigate whether being part of a community organization interfered with older adults' overall functionality. The magnitude of responses to a community exercise program based on functional circuits in socially active and socially non-active older adults was also investigated. METHODS: A total of 200 older adults aged ≥60 years from Requinoa, Chile, participated in the study. Participants were separated into two groups according to the level of social participation: socially active (SA) and socially non-active (SNA)...
October 15, 2017: Geriatrics & Gerontology International
https://www.readbyqxmd.com/read/29034439/low-grade-small-intestinal-bacterial-overgrowth-is-common-in-patients-with-non-alcoholic-steatohepatitis-on-quantitative-jejunal-aspirate-culture
#19
Uday C Ghoshal, Chalamalasetty Sreenivasa Baba, Ujjala Ghoshal, George Alexander, Asha Misra, Vivek A Saraswat, Gourdas Choudhuri
BACKGROUND: Though pathogenesis of non-alcoholic steatohepatitis (NASH) is unclear, association with small intestinal bacterial overgrowth [SIBO] and fecal dysbiosis is suggested. We evaluated SIBO in NASH using quantitative jejunal aspirate culture (conventional criteria: ≥ 10(5) colony forming unit (CFU)/mL and newer cutoff ≥ 10(3) CFU/mL) and glucose hydrogen breath test. METHODS: Thirty-eight patients with NASH (age 37.5 years, range 20-54, 9, 24% female), diagnosed by ultrasonography, alanine aminotransferase >1...
October 16, 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/29034291/microbial-biodiversity-of-tang-and-pirgal-mud-volcanoes-and-evaluation-of-bio-emulsifier-and-bio-demulsifier-activities-of-capnophile-bacteria
#20
Yasaman Parsia, Shahryar Sorooshian
The data presented in this article is related to the Master thesis; entitled "Survey Aerobic Microbial Diversity Mud Volcanoes in Chabahar and Khash Ports in Southern Iran" by the first author of this article, year 2011, Islamic Azad University, Iran (reference number (Parsia, 2011) [1] of this article). This article shows microbial biodiversity and evaluates bio-emulsifier and bio-demulsifier abilities of capnophile isolates, in order to introduce a superior isolate for the Microbial Enhanced Oil Recovery (MEOR) process in the petrochemical industry...
December 2017: Data in Brief
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