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sulfate reducing bacteria

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https://www.readbyqxmd.com/read/28343745/feasibility-of-sulfate-calcined-eggshells-for-removing-pathogenic-bacteria-and-antibiotic-resistance-genes-from-landfill-leachates
#1
Mao Ye, Mingming Sun, Xu Chen, Yanfang Feng, Jinzhong Wan, Kuan Liu, Da Tian, Manqiang Liu, Jun Wu, Arthur P Schwab, Xin Jiang
High abundance of human pathogen and antibiotic resistance genes (ARGs) in landfill leachate has become an emerging threat against human health. Therefore, sulfate- and calcination-modified eggshells as green agricultural bioresource were applied to test the feasibility of removing pathogenic bacteria and ARGs from leachate. The highest removal of Escherichia coli (E. coil) and gentamycin resistant gene (gmrA) from artificial contaminated landfill leachate was achieved by the application of eggshell with combined treatment of sulfate and calcination...
March 23, 2017: Waste Management
https://www.readbyqxmd.com/read/28330269/identification-of-the-traditional-and-non-traditional-sulfate-reducing-bacteria-associated-with-corroded-ship-hull
#2
Kiana Alasvand Zarasvand, V Ravishankar Rai
Pitting corrosion due to microbial activity is the most severe type of corrosion that occurs in ship hull. Since biogenic sulfide produced by sulfate-reducing bacteria (SRB) is involved in the acceleration of pitting corrosion of marine vessels, so it is important to collect information about SRB community involved in maritime vessel failure. We investigated the SRB community on corroded hull portion of the ship. With the use of common cultural method and 16S rDNA sequencing, ten bacteria with sulfate reduction ability were isolated and identified...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330194/exploited-application-of-sulfate-reducing-bacteria-for-concomitant-treatment-of-metallic-and-non-metallic-wastes-a-mini-review
#3
REVIEW
Ali Hussain, Ali Hasan, Arshad Javid, Javed Iqbal Qazi
A variety of multidimensional anthropogenic activities, especially of industrial level, are contaminating our aquatic and terrestrial environments with a variety of metallic and non-metallic pollutants. The metallic and non-metallic pollutants addressed specifically in this review are heavy metals and various compound forms of sulfates, respectively. Direct and indirect deleterious effects of the both types of pollutants to all forms of life are well-known. The treatment of such pollutants is therefore much necessary before their final discharge into the environment...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330154/inhibition-of-a-sulfate-reducing-bacterium-desulfovibrio-marinisediminis-gsr3-by-biosynthesized-copper-oxide-nanoparticles
#4
Kiana Alasvand Zarasvand, V Ravishankar Rai
To control the severe problem of microbiologically influenced corrosion, industries require highly potent antibacterial agent which can inhibit the growth of bacteria on man-made surfaces. This need drove the research towards the synthesis of nanoscale antimicrobial compounds. We, therefore, screened several bacteria for the biosynthesis of copper/copper compound nanoparticles which could inhibit the growth of Desulfovibrio marinisediminis, a sulfate reducing bacterium. Supernatant of thirty bacteria isolated from the biofilm formed on ship hull was mixed with 1 mM CuCl2 solution at room temperature...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28319839/escherichia-coli-removal-from-model-substrates-underlying-mechanism-based-on-nanofluid-structural-forces
#5
Jiyoung Shim, Alex Nikolov, Darsh Wasan
Understanding the interactions between bacteria and solid surfaces that result in bacterial adhesion and removal is of immense importance for reducing foodborne illness outbreaks. A nanofluid formulation comprised of a sodium dodecyl sulfate (SDS) micellar aqueous solution in the presence of an organic acid (as a pH controller) was used to test the E. coli K12 removal from two substrates, polyvinylchloride (PVC) and partially hydrophobic glass. We investigated the bacterial removal efficacy based on the combined effect of the nanofluid's structural forces and bacterial isoelectric point...
March 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28318933/anaerobic-oxidation-of-methane-coupled-to-thiosulfate-reduction-in-a-biotrickling-filter
#6
Chiara Cassarini, Eldon R Rene, Susma Bhattarai, Giovanni Esposito, Piet N L Lens
Microorganisms from an anaerobic methane oxidizing sediment were enriched with methane gas as the substrate in a biotrickling filter (BTF) using thiosulfate as electron acceptor for 213days. Thiosulfate disproportionation to sulfate and sulfide were the dominating sulfur conversion process in the BTF and the sulfide production rate was 0.5mmoll(-1)day(-1). A specific group of sulfate reducing bacteria (SRB), belonging to the Desulforsarcina/Desulfococcus group, was enriched in the BTF. The BTF biomass showed maximum sulfate reduction rate (0...
March 6, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28314724/impact-of-seasonal-hypoxia-on-activity-and-community-structure-of-chemolithoautotrophic-bacteria-in-a-coastal-sediment
#7
Yvonne A Lipsewers, Diana Vasquez-Cardenas, Dorina Seitaj, Regina Schauer, Silvia Hidalgo Martinez, Jaap S Sinninghe Damsté, Filip J R Meysman, Laura Villanueva, Henricus T S Boschker
Seasonal hypoxia in coastal systems drastically changes the availability of electron acceptors in bottom water, which alters the sedimentary reoxidation of reduced compounds. However, the effect of seasonal hypoxia on the chemolithoautotrophic community that catalyze these reoxidation reactions, is rarely studied. Here we examine the changes in activity and structure of the sedimentary chemolithoautotrophic bacterial community of a seasonally hypoxic saline basin under oxic (spring) and hypoxic (summer) conditions...
March 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28299401/sodium-lauryl-ether-sulfate-sles-degradation-by-nitrate-reducing-bacteria
#8
Ana M S Paulo, Rozelin Aydin, Mauricio R Dimitrov, Harm Vreeling, Ana J Cavaleiro, Pedro A García-Encina, Alfons J M Stams, Caroline M Plugge
The surfactant sodium lauryl ether sulfate (SLES) is widely used in the composition of detergents and frequently ends up in wastewater treatment plants (WWTPs). While aerobic SLES degradation is well studied, little is known about the fate of this compound in anoxic environments, such as denitrification tanks of WWTPs, nor about the bacteria involved in the anoxic biodegradation. Here, we used SLES as sole carbon and energy source, at concentrations ranging from 50 to 1000 mg L(-1), to enrich and isolate nitrate-reducing bacteria from activated sludge of a WWTP with the anaerobic-anoxic-oxic (A(2)/O) concept...
March 15, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28289847/bacterial-diversity-in-fumarole-environments-of-the-paricut%C3%A3-n-volcano-michoac%C3%A3-n-mexico
#9
Miguel Medrano-Santillana, Elcia Margaret Souza-Brito, Robert Duran, Felix Gutierrez-Corona, Georgina Elena Reyna-López
Active volcanoes are among the most extreme environments on Earth. The extreme temperatures, presence of toxic heavy metals and low nutrient bioavailability favor the development of extremophiles. We characterized the physical-chemical parameters of and bacterial communities (T-RFLP and 16S rRNA gene libraries) inhabiting fumarole niches of the Paricutín volcano located in Michoacán (Mexico). This volcano, which surged in 1943, is one of the youngest volcanoes on Earth and the microbial diversity in this area is yet to be characterized...
March 13, 2017: Extremophiles: Life Under Extreme Conditions
https://www.readbyqxmd.com/read/28282584/pomegranate-polyphenolics-reduce-inflammation-and-ulceration-in-intestinal-colitis-involvement-of-the-mir-145-p70s6k1-hif1%C3%AE-axis-in-vivo-and-in-vitro
#10
Hyemee Kim, Nivedita Banerjee, Maritza A Sirven, Yasushi Minamoto, Melissa E Markel, Jan S Suchodolski, Stephen T Talcott, Susanne U Mertens-Talcott
This study investigated the potential role of the p70S6K1/HIF1α axis in the anti-inflammatory activities of pomegranate (Punica granatum L.) polyphenolics in dextran sodium sulfate (DSS)-induced colitis in Sprague-Dawley rats and in lipopolysaccharide (LPS)-treated CCD-18Co colon-myofibroblastic cells. Rats were administered either control (CT) or pomegranate beverage (PG), containing ellagic acid and ellagitannins, then exposed to three cycles of 3% DSS followed by a 2-week recovery period. PG protected against DSS-induced colon inflammation and ulceration (50% and 66...
February 27, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28278102/operational-and-biological-analyses-of-branched-water-adjust-and-combined-treatment-for-wastewater-from-a-chemical-industrial-park
#11
Ming Xu, Jiashun Cao, Chao Li, Yong Tu, Haisuo Wu, Weijing Liu
The combined biological processes of branched water-adjustment, chemical precipitation, hydrolysis acidification, secondary sedimentation, A/O and activated carbon treatment were used for chemical industrial wastewater treatment in the Taihu Lake Basin. Full-scale treatment resulted in effluent COD, TN, NH3-N and TP of 35.1 mg/L, 5.20 mg/L, 3.10 mg/L and 0.15 mg/L, respectively, with a total removal efficiency of 91.1%, 67.1%, 70.5% and 89.3%, respectively. In this process, short-circuited organic carbon from brewery wastewater was beneficial for denitrification and second-sulfate reduction...
February 22, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28264778/free-sulfurous-acid-fsa-inhibition-of-biological-thiosulfate-reduction-btr-in-the-sulfur-cycle-driven-wastewater-treatment-process
#12
Jin Qian, Lianlian Wang, Yaoguo Wu, Philip L Bond, Yuhan Zhang, Xing Chang, Baixue Deng, Li Wei, Qin Li, Qilin Wang
A sulfur cycle-based bioprocess for co-treatment of wet flue gas desulfurization (WFGD) wastes with freshwater sewage has been developed. In this process the removal of organic carbon is mainly associated with biological sulfate or sulfite reduction. Thiosulfate is a major intermediate during biological sulfate/sulfite reduction, and its reduction to sulfide is the rate-limiting step. In this study, the impacts of saline sulfite (the ionized form: HSO3(-) + SO3(2-)) and free sulfurous acid (FSA, the unionized form: H2SO3) sourced from WGFD wastes on the biological thiosulfate reduction (BTR) activities were thoroughly investigated...
February 24, 2017: Chemosphere
https://www.readbyqxmd.com/read/28261160/microbial-character-related-sulfur-cycle-under-dynamic-environmental-factors-based-on-the-microbial-population-analysis-in-sewerage-system
#13
Qian Dong, Hanchang Shi, Yanchen Liu
The undesired sulfur cycle derived by microbial population can ultimately causes the serious problems of sewerage systems. However, the microbial community characters under dynamic environment factors in actual sewerage system is still not enough. This current study aimed to character the distributions and compositions of microbial communities that participate in the sulfur cycle under the dynamic environmental conditions in a local sewerage system. To accomplish this, microbial community compositions were assessed using 454 high-throughput sequencing (16S rDNA) combined with dsrB gene-based denaturing gradient gel electrophoresis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28255685/effects-of-planted-versus-naturally-growing-vallisneria-natans-on-the-sediment-microbial-community-in-west-lake-china
#14
Chuan Wang, Shuangyuan Liu, Yi Zhang, Biyun Liu, Lei Zeng, Feng He, Qiaohong Zhou, Zhenbin Wu
Submerged macrophytes play an important role in aquatic ecosystems, which has led to an increase in studies on vegetation recovery in polluted lakes from which submerged macrophytes have disappeared. The comparison of microbial communities in sediment cloned with planted and naturally growing submerged macrophytes is an interesting but rarely studied topic. In this investigation, Maojiabu and Xilihu, two adjacent sublakes of West Lake (Hangzhou, China), were selected as aquatic areas with planted and naturally growing macrophytes, respectively...
March 2, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28249246/copper-sulfate-pentahydrate-reduced-epithelial-cytotoxicity-induced-by-lipopolysaccharide-from-enterogenic-bacteria
#15
Adel Feyzi, Aref Delkhosh, Hamid Tayefi Nasrabadi, Omid Cheraghi, Mansour Khakpour, Mazyar Barekati-Mowahed, Sina Soltani, Seyede Momeneh Mohammadi, Masoumeh Kazemi, Mehdi Hassanpour, Aysa Rezabakhsh, Nasrin Maleki-Dizaji, Reza Rahbarghazi, Reza Namdarian
The over usage of multiple antibiotics contributes to the emergence of a whole range of antibiotic-resistant strains of bacteria causing enterogenic infections in poultry science. Therefore, finding an appropriate alternative natural substance carrying an antibacterial capacity would be immensely beneficial. It has been previously discovered that the different types of cupric salts, especially copper sulfate pentahydrate (CuSO4·5H2O), to carry a potent bactericidal capacity. We investigated the neutralizing effect of CuSO4·5H2O (6...
February 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28239375/indirect-redox-transformations-of-iron-copper-and-chromium-catalyzed-by-extremely-acidophilic-bacteria
#16
D Barrie Johnson, Sabrina Hedrich, Eva Pakostova
Experiments were carried out to examine redox transformations of copper and chromium by acidophilic bacteria (Acidithiobacillus, Leptospirillum, and Acidiphilium), and also of iron (III) reduction by Acidithiobacillus spp. under aerobic conditions. Reduction of iron (III) was found with all five species of Acidithiobacillus tested, grown aerobically on elemental sulfur. Cultures maintained at pH 1.0 for protracted periods displayed increasing propensity for aerobic iron (III) reduction, which was observed with cell-free culture liquors as well as those containing bacteria...
2017: Frontiers in Microbiology
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
#17
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
#18
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
#19
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
#20
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
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