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sulfate reducing bacteria

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https://www.readbyqxmd.com/read/28230180/assessment-of-chicken-carcass-microbiome-responses-during-processing-in-the-presence-of-commercial-antimicrobials-using-a-next-generation-sequencing-approach
#1
Sun Ae Kim, Si Hong Park, Sang In Lee, Casey M Owens, Steven C Ricke
The purpose of this study was to 1) identify microbial compositional changes on chicken carcasses during processing, 2) determine the antimicrobial efficacy of peracetic acid (PAA) and Amplon (blend of sulfuric acid and sodium sulfate) at a poultry processing pilot plant scale, and 3) compare microbial communities between chicken carcass rinsates and recovered bacteria from media. Birds were collected from each processing step and rinsates were applied to estimate aerobic plate count (APC) and Campylobacter as well as Salmonella prevalence...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28226251/effects-of-sulfate-on-heavy-metal-release-from-iron-corrosion-scales-in-drinking-water-distribution-system
#2
Huifang Sun, Baoyou Shi, Fan Yang, Dongsheng Wang
Trace heavy metals accumulated in iron corrosion scales within a drinking water distribution system (DWDS) could potentially be released to bulk water and consequently deteriorate the tap water quality. The objective of this study was to identify and evaluate the release of trace heavy metals in DWDS under changing source water conditions. Experimental pipe loops with different iron corrosion scales were set up to simulate the actual DWDS. The effects of sulfate levels on heavy metal release were systemically investigated...
February 13, 2017: Water Research
https://www.readbyqxmd.com/read/28224895/conductive-microbial-cellulose-as-a-novel-biocathode-for-cr-vi-bioreduction
#3
Mahshid Loloei, Abbas Rezaee, Alireza Sabour Roohaghdam, Mahmood Aliofkhazraei
In the present study, microbial cellulose (MC) as a carbohydrate polymer was made conductive by oxidative polymerization with aniline. Sulfate-reducing bacteria (SRB) were immobilized on the surface of the conductive biopolymer, and this was used as a biocathode in a bioreduction process to reduce Cr (VI) as a model of heavy metals. The results of Fourier transform infrared analysis confirmed that the polyaniline was distributed on the cellulose surface. The maximum tensile stress of the conductive biopolymer was obtained 23MPa using calculating Young's modulus...
April 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28220111/identity-abundance-and-reactivation-kinetics-of-thermophilic-fermentative-endospores-in-cold-marine-sediment-and-seawater
#4
Marta Volpi, Bente Aa Lomstein, Andreas Sichert, Hans Røy, Bo B Jørgensen, Kasper U Kjeldsen
Cold marine sediments harbor endospores of fermentative and sulfate-reducing, thermophilic bacteria. These dormant populations of endospores are believed to accumulate in the seabed via passive dispersal by ocean currents followed by sedimentation from the water column. However, the magnitude of this process is poorly understood because the endospores present in seawater were so far not identified, and only the abundance of thermophilic sulfate-reducing endospores in the seabed has been quantified. We investigated the distribution of thermophilic fermentative endospores (TFEs) in water column and sediment of Aarhus Bay, Denmark, to test the role of suspended dispersal and determine the rate of endospore deposition and the endospore abundance in the sediment...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28217926/reduction-oxidation-cycles-of-organic-matter-increase-bacterial-activity-in-the-pelagic-oxycline
#5
Maximilian P Lau, Michael Hupfer, Hans Peter Grossart
Dissolved organic matter (DOM) in aquatic ecosystems contains redox-active moieties, which are prone to oxidation and reduction reactions. Oxidized moieties feature reduction potentials Eh , so that the moieties may be used as terminal electron acceptors (TEAs) in microbial respiration with a thermodynamic energy yield between nitrate and sulfate reduction. Here, we study the response of pelagic freshwater bacteria to exposure to native DOM with varying availabilities of oxidized moieties and hence redox state...
February 20, 2017: Environmental Microbiology Reports
https://www.readbyqxmd.com/read/28214907/a-pilot-study-of-bacterial-regrowth-in-water-pipelines
#6
Laura Mancini, Stefania Marcheggiani, Cinzia Grasso, Cristina Romanelli, Antonio Mistretta, Marina Marranzano
Bacterial regrowth in water distribution systems results in deterioration of bacteriological quality of drinking water, as well as accelerated corrosion of the pipelines. The aim of the present study was to analyze the phenomena of colonization and bacterial regrowth in source water and in the water distribution systems of three distribution networks in the province of Catania (Sicily, Italy). The BART™ (Biological Activity Reaction Test) method was used, which is also capable of determining the potential aggressiveness of microbial species in water...
November 2016: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28210252/compositions-and-abundances-of-sulfate-reducing-and-sulfur-oxidizing-microorganisms-in-water-flooded-petroleum-reservoirs-with-different-temperatures-in-china
#7
Huimei Tian, Peike Gao, Zhaohui Chen, Yanshu Li, Yan Li, Yansen Wang, Jiefang Zhou, Guoqiang Li, Ting Ma
Sulfate-reducing bacteria (SRB) have been studied extensively in the petroleum industry due to their role in corrosion, but very little is known about sulfur-oxidizing bacteria (SOB), which drive the oxidization of sulfur-compounds produced by the activity of SRB in petroleum reservoirs. Here, we surveyed the community structure, diversity and abundance of SRB and SOB simultaneously based on 16S rRNA, dsrB and soxB gene sequencing, and quantitative PCR analyses, respectively in petroleum reservoirs with different physicochemical properties...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28197141/metabolomic-and-metagenomic-analysis-of-two-crude-oil-production-pipelines-experiencing-differential-rates-of-corrosion
#8
Vincent Bonifay, Boris Wawrik, Jan Sunner, Emily C Snodgrass, Egemen Aydin, Kathleen E Duncan, Amy V Callaghan, Athenia Oldham, Turid Liengen, Iwona Beech
Corrosion processes in two North Sea oil production pipelines were studied by analyzing pig envelope samples via metagenomic and metabolomic techniques. Both production systems have similar physico-chemical properties and injection waters are treated with nitrate, but one pipeline experiences severe corrosion and the other does not. Early and late pigging material was collected to gain insight into the potential causes for differential corrosion rates. Metabolites were extracted and analyzed via ultra-high performance liquid chromatography/high-resolution mass spectrometry with electrospray ionization (ESI) in both positive and negative ion modes...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28185734/arsenic-behavior-in-different-biogeochemical-zonations-approximately-along-the-groundwater-flow-path-in-datong-basin-northern-china
#9
Junwen Zhang, Teng Ma, Liang Feng, Yani Yan, Olusegun K Abass, Zhiqiang Wang, Huawei Cai
Studies have shown that arsenic is desorbed/released into groundwater as a result of bacterial reduction of As(V) and Fe(III). However, bacterial activities like sulfate reduction process can also reduce the content of arsenic in groundwater. In this study, we examined the effects of different biogeochemical processes (e.g. NO3(-) and SO4(2-) reduction) on arsenic, by investigating the chemical characteristics and bacterial community structure of groundwater in the Datong Basin, northern China. Along the groundwater flow path, arsenic concentration increased from <1 to 947...
February 6, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28169454/toxicity-of-sulfide-to-early-life-stages-of-wild-rice-zizania-palustris
#10
Douglas J Fort, Kevin Todhunter, Troy D Fort, Michael B Mathis, Rachel Walker, Mike Hansel, Scott Hall, Robin Richards, Kurt Anderson
Wild rice (Zizania palustris) sensitivity to sulfide is not well understood. Since sulfate in surface waters is reduced to sulfide by anaerobic bacteria in sediments and historical information indicated that 10 mg/L sulfate in Minnesota surface water reduced Z. palustris abundance, the Minnesota Pollution Control Agency (MPCA) established 10 mg/L sulfate as a water quality criterion in 1973. A 21-day daily-renewal hydroponic study was conducted to evaluate sulfide toxicity to wild rice and the potential mitigation of sulfide toxicity by Fe...
February 7, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28159790/the-effects-of-sulfate-reduction-on-tce-dechlorination-by-dehalococcoides-containing-microbial-communities
#11
Xinwei Mao, Alexandra Polasko, Lisa Alvarez-Cohen
: In order to elucidate interactions between sulfate reduction and dechlorination, we systematically evaluated the effects of different concentrations of sulfate and sulfide on reductive dechlorination by isolates, constructed consortia and enrichments containing Dehalococcoides sp. Sulfate (up to 5 mM) did not inhibit growth or metabolism of pure cultures of dechlorinator Dehalococcoides mccartyi 195, sulfate reducer Desulfovibrio vulgaris Hildenborough (DvH) or syntroph Syntrophomonas wolfei (S...
February 3, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28124779/a-lactic-acid-bacterium-isolated-from-kimchi-ameliorates-intestinal-inflammation-in-dss-induced-colitis
#12
Jin-Soo Park, Inseong Joe, Paul Daong Rhee, Choon-Soo Jeong, Gajin Jeong
Some species of lactic acid bacteria have been shown to be beneficial in inflammatory bowel disease (IBD). In the present study, a strain of lactic acid bacterium (Lactobacillus paracasei LS2) was isolated from the Korean food, kimchi, and was shown to inhibit the development of experimental colitis induced by dextran sulfate sodium (DSS). To investigate the role of LS2 in IBD, mice were fed DSS in drinking water for seven days along with LS2 bacteria which were administered intragastrically to some of the mice, while phosphate- buffered saline (PBS) was administered to others (the controls)...
January 26, 2017: Journal of Microbiology / the Microbiological Society of Korea
https://www.readbyqxmd.com/read/28120371/permeability-shapes-bacterial-communities-in-sublittoral-surface-sediments
#13
D Probandt, K Knittel, H E Tegetmeyer, S Ahmerkamp, M Holtappels, R Amann
The first interaction of water column-derived organic matter with benthic microbial communities takes place in surface sediments which are acting as biological filters catalyzing central steps of elemental cycling. Here we analyzed the bacterial diversity and community structure of sediment top layers at seven sites in the North Sea where sediment properties ranged from coarse-grained and highly permeable to fine-grained and impermeable. Bacterial communities in surface sediments were richer, more even and significantly different from communities in bottom waters as revealed by Illumina tag sequencing of 16S rRNA genes...
January 24, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28120312/nitrogen-fixing-bacterial-diversity-in-a-tropical-estuarine-sediments
#14
Jabir Thajudeen, Jesmi Yousuf, Vipindas Puthiya Veetil, Sherin Varghese, Arvind Singh, Mohamed Hatha Abdulla
Microorganisms play a significant role in biogeochemical cycles, especially in the benthic and pelagic ecosystems. Role of environmental parameters in regulating the diversity, distribution and physiology of these microorganisms in tropical marine environment is not well understood. In this study, we have identified dinitrogen (N2) fixing bacterial communities in the sediments by constructing clone libraries of nitrogenase (nifH) gene from four different stations in the Cochin estuary, along the southeastern Arabian Sea...
February 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28117550/abundant-carbon-substrates-drive-extremely-high-sulfate-reduction-rates-and-methane-fluxes-in-prairie-pothole-wetlands
#15
Paula Dalcin Martins, David W Hoyt, Sheel Bansal, Christopher T Mills, Malak Tfaily, Brian A Tangen, Raymond G Finocchiaro, Michael D Johnston, Brandon C McAdams, Matthew J Solensky, Garrett J Smith, Yu-Ping Chin, Michael J Wilkins
Inland waters are increasingly recognized as critical sites of methane emissions to the atmosphere, but the biogeochemical reactions driving such fluxes are less well understood. The Prairie Pothole Region (PPR) of North America is one of the largest wetland complexes in the world, containing millions of small, shallow wetlands. The sediment pore waters of PPR wetlands contain some of the highest concentrations of dissolved organic carbon (DOC) and sulfur species ever recorded in terrestrial aquatic environments...
January 24, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28105510/diversity-and-distribution-of-thermophilic-bacteria-in-hot-springs-of-pakistan
#16
Arshia Amin, Iftikhar Ahmed, Nimaichand Salam, Byung-Yong Kim, Dharmesh Singh, Xiao-Yang Zhi, Min Xiao, Wen-Jun Li
Chilas and Hunza areas, located in the Main Mantle Thrust and Main Karakoram Thrust of the Himalayas, host a range of geochemically diverse hot springs. This Himalayan geothermal region encompassed hot springs ranging in temperature from 60 to 95 °C, in pH from 6.2 to 9.4, and in mineralogy from bicarbonates (Tato Field), sulfates (Tatta Pani) to mixed type (Murtazaabad). Microbial community structures in these geothermal springs remained largely unexplored to date. In this study, we report a comprehensive, culture-independent survey of microbial communities in nine samples from these geothermal fields by employing a bar-coded pyrosequencing technique...
January 19, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28095773/dietary-pea-fiber-increases-diversity-of-colonic-methanogens-of-pigs-with-a-shift-from-methanobrevibacter-to-methanomassiliicoccus-like-genus-and-change-in-numbers-of-three-hydrogenotrophs
#17
Yuheng Luo, Hong Chen, Bing Yu, Jun He, Ping Zheng, Xiangbing Mao, Gang Tian, Jie Yu, Zhiqing Huang, Junqiu Luo, Daiwen Chen
BACKGROUND: Pea fiber (PF) is a potential fibrous supplement in swine production. The influence of dietary PF on microbial community in the colon of pigs remains largely unexplored. Methanogens in the hindgut of monogastric animals play important roles in degradation of dietary fibers and efficient removal of microbial metabolic end product H2. Understanding the impact of dietary PF on the structure of colonic methanogens may help understand the mechanisms of microbe-mediated physiological functions of PF...
January 17, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28088549/redistribution-of-elements-between-wastes-and-organic-bearing-material-in-the-dispersion-train-of-gold-bearing-sulfide-tailings-part-i-geochemistry-and-mineralogy
#18
B Yu Saryg-Ool, I N Myagkaya, I S Kirichenko, M A Gustaytis, O V Shuvaeva, S M Zhmodik, E V Lazareva
Migration and redistribution of elements during prolonged interaction of cyanide wastes with the underlying natural organic-bearing material have been studied in two ~40cm deep cores that sample primary ores and their weathering profile (wastes I and II, respectively) in the dispersion train of gold-bearing sulfide tailings in Siberia. Analytical results of SR-XRF, whole-rock XRF, AAS, CHNS, and SEM measurements of core samples show high K, Sr, Ti, and Fe enrichments and correlation of P2O5 and Mn with LOI and Corg...
January 11, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28049781/isolating-dna-from-gram-negative-bacteria
#19
Michael R Green, Joseph Sambrook
The isolation of DNA from bacteria, described in this protocol, relies upon the use of sodium dodecyl sulfate and proteinase K to lyse the cells. High-molecular-weight DNA is then sheared (to reduce its viscosity and make it more manageable), extracted with phenol:chloroform, and precipitated with isopropanol. DNA isolated according to this procedure ranges from 30 to 80 kb in length.
January 3, 2017: Cold Spring Harbor Protocols
https://www.readbyqxmd.com/read/28033549/combined-iron-and-sulfate-reduction-biostimulation-as-a-novel-approach-to-enhance-btex-and-pah-source-zone-biodegradation-in-biodiesel-blend-contaminated-groundwater
#20
Juliana B Müller, Débora T Ramos, Catherine Larose, Marilda Fernandes, Helen S C Lazzarin, Timothy M Vogel, Henry X Corseuil
The use of biodiesel as a transportation fuel and its growing mandatory blending percentage in diesel increase the likelihood of contaminating groundwater with diesel/biodiesel blends. A 100L-field experiment with B20 (20% biodiesel and 80% diesel, v/v) was conducted to assess the potential for the combined biostimulation of iron and sulfate reducing bacteria to enhance BTEX and PAH biodegradation in a diesel/biodiesel blend-contaminated groundwater. A B20 field experiment under monitored natural attenuation (MNA) was used as a baseline control...
December 5, 2016: Journal of Hazardous Materials
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