A strictly autotrophic species of bacteria that oxidizes sulfur and thiosulfate to sulfuric acid. It was formerly called Thiobacillus thiooxidans.
A genus of gram-negative rod-shaped bacteria in the class GAMMAPROTEOBACTERIA. They are obligately acidophilic and aerobic, using reduced SULFUR COMPOUNDS to support AUTOTROPHIC GROWTH.
Inorganic compounds that contain tungsten as an integral part of the molecule.
A genus of gram-negative, rod-shaped bacteria that derives energy from the oxidation of one or more reduced sulfur compounds. Many former species have been reclassified to other classes of PROTEOBACTERIA.
An element that is a member of the chalcogen family. It has an atomic symbol S, atomic number 16, and atomic weight [32.059; 32.076]. It is found in the amino acids cysteine and methionine.

Interaction-induced redox switch in the electron transfer complex rusticyanin-cytochrome c(4). (1/36)

The blue copper protein rusticyanin isolated from the acidophilic proteobacterium Thiobacillus ferrooxidans displays a pH-dependent redox midpoint potential with a pK value of 7 on the oxidized form of the protein. The nature of the alterations of optical and EPR spectra observed above the pK value indicated that the redox-linked deprotonation occurs on the epsilon-nitrogen of the histidine ligands to the copper ion. Complex formation between rusticyanin and its probable electron transfer partner, cytochrome c(4), induced a decrease of rusticyanin's redox midpoint potential by more than 100 mV together with spectral changes similar to those observed above the pK value of the free form. Complex formation thus substantially modifies the pK value of the surface-exposed histidine ligand to the copper ion and thereby tunes the redox midpoint potential of the copper site. Comparisons with reports on other blue copper proteins suggest that the surface-exposed histidine ligand is employed as a redox tuning device by many members of this group of soluble electron carriers.  (+info)

Effect of various ions, pH, and osmotic pressure on oxidation of elemental sulfur by Thiobacillus thiooxidans. (2/36)

The oxidation of elemental sulfur by Thiobacillus thiooxidans was studied at pH 2.3, 4.5, and 7.0 in the presence of different concentrations of various anions (sulfate, phosphate, chloride, nitrate, and fluoride) and cations (potassium, sodium, lithium, rubidium, and cesium). The results agree with the expected response of this acidophilic bacterium to charge neutralization of colloids by ions, pH-dependent membrane permeability of ions, and osmotic pressure.  (+info)

The chromosomal arsenic resistance genes of Thiobacillus ferrooxidans have an unusual arrangement and confer increased arsenic and antimony resistance to Escherichia coli. (3/36)

The chromosomal arsenic resistance genes of the acidophilic, chemolithoautotrophic, biomining bacterium Thiobacillus ferrooxidans were cloned and sequenced. Homologues of four arsenic resistance genes, arsB, arsC, arsH, and a putative arsR gene, were identified. The T. ferrooxidans arsB (arsenite export) and arsC (arsenate reductase) gene products were functional when they were cloned in an Escherichia coli ars deletion mutant and conferred increased resistance to arsenite, arsenate, and antimony. Therefore, despite the fact that the ars genes originated from an obligately acidophilic bacterium, they were functional in E. coli. Although T. ferrooxidans is gram negative, its ArsC was more closely related to the ArsC molecules of gram-positive bacteria. Furthermore, a functional trxA (thioredoxin) gene was required for ArsC-mediated arsenate resistance in E. coli; this finding confirmed the gram-positive ArsC-like status of this resistance and indicated that the division of ArsC molecules based on Gram staining results is artificial. Although arsH was expressed in an E. coli-derived in vitro transcription-translation system, ArsH was not required for and did not enhance arsenic resistance in E. coli. The T. ferrooxidans ars genes were arranged in an unusual manner, and the putative arsR and arsC genes and the arsBH genes were translated in opposite directions. This divergent orientation was conserved in the four T. ferrooxidans strains investigated.  (+info)

Development and application of small-subunit rRNA probes for assessment of selected Thiobacillus species and members of the genus Acidiphilium. (4/36)

Culture-dependent studies have implicated sulfur-oxidizing bacteria as the causative agents of acid mine drainage and concrete corrosion in sewers. Thiobacillus species are considered the major representatives of the acid-producing bacteria in these environments. Small-subunit rRNA genes from all of the Thiobacillus and Acidiphilium species catalogued by the Ribosomal Database Project were identified and used to design oligonucleotide DNA probes. Two oligonucleotide probes were synthesized to complement variable regions of 16S rRNA in the following acidophilic bacteria: Thiobacillus ferrooxidans and T. thiooxidans (probe Thio820) and members of the genus Acidiphilium (probe Acdp821). Using (32)P radiolabels, probe specificity was characterized by hybridization dissociation temperature (T(d)) with membrane-immobilized RNA extracted from a suite of 21 strains representing three groups of bacteria. Fluorochrome-conjugated probes were evaluated for use with fluorescent in situ hybridization (FISH) at the experimentally determined T(d)s. FISH was used to identify and enumerate bacteria in laboratory reactors and environmental samples. Probing of laboratory reactors inoculated with a mixed culture of acidophilic bacteria validated the ability of the oligonucleotide probes to track specific cell numbers with time. Additionally, probing of sediments from an active acid mine drainage site in Colorado demonstrated the ability to identify numbers of active bacteria in natural environments that contain high concentrations of metals, associated precipitates, and other mineral debris.  (+info)

Purification and properties of thiosulfate dehydrogenase from Acidithiobacillus thiooxidans JCM7814. (5/36)

A key enzyme of the thiosulfate oxidation pathway in Acidithiobacillus thiooxidans JCM7814 was investigated. As a result of assaying the enzymatic activities of thiosulfate dehydrogenase, rhodanese, and thiosulfate reductase at 5.5 of intracellular pH, the activity of thiosulfate dehydrogenase was measured as the key enzyme. The thiosulfate dehydrogenase of A. thiooxidans JCM7814 was purified using three chromatographies. The purified sample was electrophoretically homogeneous. The molecular mass of the enzyme was 27.9 kDa and it was a monomer. This enzyme had cytochrome c. The optimum pH and temperature of this enzyme were 3.5 and 35 degrees C. The enzyme was stable in the pH range from 5 to 7, and it was stable up to 45 degrees C. The isoelectric point of the enzyme was 8.9. This enzyme reacted with thiosulfate as a substrate. The Km was 0.81 mM.  (+info)

Purificantion and characterization of inorganic pyrophosphatase from Thiobacillus thiooxidans. (6/36)

An inorganic pyrophosphatase [EC 3.6.1.1] was isolated from Thiobacillus thiooxidans and purified 975-fold to a state of apparent homogeneity. The enzyme catalyzed the hydrolysis of inorganic pyrophosphate and no activity was found with a variety of other phosphate esters. The cation Mg2+ was required for maximum activity; Co2+ and Mn2+ supported 25 per cent and 10.6 per cent of the activity with Mg2+, respectively. The pH optimum was 8.8. The molecular weight was estimated to be 88,000 by gel filtration and SDS gel electrophoresis, and the enzyme consisted of four identical subunits. The isoelectric point was found to be 5.05. The enzyme was exceptionally heat-stable in the presence of 0.01 M Mg2+.  (+info)

Analysis of differential-expressed proteins of Acidithiobacillus ferrooxidans grown under phosphate starvation. (7/36)

Acidithiobacillus ferrooxidans is one of the most important bacterium used in bioleaching, and can utilize Fe(2+) or sulphide as energy source. Growth curves for Acidithiobacillus ferrooxidans under phosphate starvation and normal condition have been tested, showing lag, logarithmic, stationary and aging phases as seen in other bacteria. The logarithmic phases were from 10 to 32 hours for Acidithiobacillus ferrooxidans cultivated with normal cultivating condition and from 20 to 60 hrs for Acidithiobacillus ferrooxidans cultivated phosphate starvation. Differences of protein patterns of Acidithiobacillus ferrooxidans growing in case of normal or phosphate starvation were separately investigated after cultivation at 30(o)C by the analysis of two-dimensional gel electrophoresis (2-DE), matrix-assisted laser desorption/ionization (MALDI)-Mass spectrometry. There were total 6 protein spots identified, which were Recombination protein recA, RNA helicase, AP2 domain-containing transcription factor, NADH dehydrogenase I chain D, Hyothetical protein PF1669, and Transaldolase STY3758. From the 6 identified protein spots, 3 proteins were found to be decreased in expression at the cultivating condition of phosphate starvation, while another three upregulated.  (+info)

Simultaneous removal of H2S and NH3 in biofilter inoculated with Acidithiobacillus thiooxidans TAS. (8/36)

H2S and NH3 gases are toxic, corrosive and malodorous air pollutants. Although there are numerous well-established physicochemical techniques presently available for the treatment of these gases, the growing demand for a more economical and improved process has prompted investigations into biological alternatives. In biological treatment methods, H2S is oxidized to SO4(2-) by sulfur-oxidizing bacteria, and then NH3 is removed by chemical neutralization with SO4(2-) to (NH4)2SO4. Since the accumulated (NH4)2SO4 can inhibit microbial activity, it is important to utilize an effective sulfur-oxidizing bacterium that has tolerance to high concentrations of (NH4)2SO4 for the simultaneous removal of H2S and NH3. In this study, a sulfur-oxidizing bacterium with tolerance to high concentrations of (NH4)2SO4 was isolated from activated sludge and identified as Acidithiobacillus thiooxidans TAS. A. thiooxidans TAS could display its sulfur-oxidizing activity in a medium supplemented with 60 g.l(-1) (NH4)2SO4, even though its growth and sulfur-oxidizing activity were completely inhibited in 80 g.l(-1) (NH4)2SO4. When H2S alone was supplied to a ceramic biofilter inoculated with A. thiooxidans TAS, an almost 100% H2S removal efficiency was maintained until the inlet H2S concentration was increased up to 900 microl.l(-1) and the space velocity up to 500 h(-1), at which the amount of H2S eliminated was 810 g-S.m(-3).h(-1). However, when NH3 (50-500 microl.l(-1)) was simultaneously supplied to the biofilter with H2S, the maximum amount of H2S eliminated decreased to 650 g-S.m(-3).h(-1). The inhibition of H2S removal by low NH3 concentrations (50-200 microl.l(-1)) was similar to that by high NH3 concentrations (300-500 microl.l(-1)). The critical inlet H2S load that resulted in over 99% removal was determined as 400 g-S.m(-3).h(-1) in the presence of NH3.  (+info)

Zn-Mobil is produced from a beneficial autotrophic and acidophilic bacterium Thiobacillus thiooxidans. Zinc (Zn) is one of the essential micronutrient...
Oxidative dissolution of chalcopyrite at ambient temperatures is generally slow and subject to passivation, posing a major challenge for developing bioleaching applications for this recalcitrant mineral. Chloride is known to enhance the chemical leaching of chalcopyrite, but much of this effect has been demonstrated at elevated temperatures. This study was undertaken to test whether 100-200 mM Na-chloride enhances the chemical and bacterial leaching of chalcopyrite in shake flasks and stirred tank bioreactor conditions at mesophilic temperatures. Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and abiotic controls were employed for the leaching experiments. Addition of Na-chloride to the bioleaching suspension inhibited the formation of secondary phases from chalcopyrite and decreased the Fe(III) precipitation. Neither elemental S nor secondary Cu-sulfides were detected in solid residues by X-ray diffraction. Chalcopyrite leaching was enhanced when the solution contained bacteria, ...
Some sulfate-reducing bacteria produce hydrogen sulfide, which can cause sulfide stress cracking. Acidithiobacillus bacteria produce sulfuric acid; Acidothiobacillus thiooxidans frequently damages sewer pipes. Ferrobacillus ferrooxidans directly oxidizes iron to iron oxides and iron hydroxides; the rusticles forming on the RMS Titanic wreck are caused by bacterial activity. Other bacteria produce various acids, both organic and mineral, or ammonia. In presence of oxygen, aerobic bacteria like Acidithiobacillus thiooxidans, Thiobacillus thioparus, and Thiobacillus concretivorus, all three widely present in the environment, are the common corrosion-causing factors resulting in biogenic sulfide corrosion. Without presence of oxygen, anaerobic bacteria, especially Desulfovibrio and Desulfotomaculum, are common. Desulfovibrio salixigens requires at least 2.5% concentration of sodium chloride, but D. vulgaris and D. desulfuricans can grow in both fresh and salt water. D. africanus is another common ...
references say that the former increases the rate of pyrite oxidation causing lakes to be come acidic. While other resources say its the latter. Maybe they are the same? but if they are the same, how come the former also increases the rate of metal precipitation and reduces the acidity of acidic lakes by reduction of sulfate when it causes the acidity in the first place ...
Uporaba mikroorganizmov pri pridobivanju kovin iz mineralnih rud oz. biorudarstvo se je v preteklih nekaj letih razvilo v uspešno in rastočo biotehnološko panogo, kljub temu pa je bila selekcija in spremljanje mikrobnih kultur za optimalno izluževanje minimalna[3]. Vprašanje torej ostaja, ali so trenutne mikrobne populacije v komercialnih postopkih dovolj primerne ali pa bi lahko z umetnim sestavljanjem bakterijskih sevov ustvarili še bolj učinkovite konzorcije[3]. Raziskave so pokazale, da imajo konzorciji različnih bakterij, ki se nahajajo v naravi, večjo sposobnost izluževanja kot čiste kulture[1]. Razlog je v sinergijskih učinkih posameznih vrst bakterij, ki imajo sicer različne funkcije, a skupaj omogočajo izvajanje večstopenjskih procesov[1]. Mešana kultura A. ferroxidans in A. thiooxidans je npr. veliko bolj učinkovita pri izluževanju kalkopirita (mineral CuFeS2), saj A. thiooxidans preprečuje nastajanje inhibitornih jarozitnih plasti, ki so pogosto posledica sprememb v ...
An important characteristic of the acidophilic chemolithotrophs is their general tolerance of high concentrations of metallic and other ions. The levels of resistance of several acidophilic bacteria and archaea to As3+, Cu2+, Zn2+, Cd2+ and Ni+ have recently been reviewed and will not be covered here in detail [25]. As may be predicted, levels of resistance show considerable strain variation. Adaptation to high levels of metal resistance on exposure to a metal is likely to be responsible for much of the variation. At. ferrooxidans appears to be particularly resistant to metals and the bacterium has been reported to grow in medium containing Co2+ (30 g/l), Cu2+ (55 g/l), Ni2+ (72 g/l), Zn2+ (120 g/l), U3O8 (12 g/l) and Fe2+ (160 g/l). In a comparative study of two At. ferrooxidans, two L. ferrooxidans and an At. thiooxidans strain, it was found that At. ferrooxidans and L. ferrooxidans were approximately equally resistant to Cu2+, Zn2+, Al3+, Ni2+ and Mn2+, but that L. ferrooxidans was more ...
The acidithiobacilli are sulfur-oxidizing acidophilic bacteria that thrive in both natural and anthropogenic low pH environments. They contribute to processes that lead to the generation of acid rock drainage in several different geoclimatic contexts, and their properties have long been harnessed for the biotechnological processing of minerals. Presently, the genus is composed of seven validated species, described between 1922 and 2015: Acidithiobacillus thiooxidans, A. ferrooxidans, A. albertensis, A. caldus, A. ferrivorans, A. ferridurans and A. ferriphilus. However, a large number of Acidithiobacillus strains and sequence clones have been obtained from a variety of ecological niches over the years, and many isolates are thought to vary in phenotypic properties and cognate genetic traits. Moreover, many isolates remain unclassified and several conflicting specific assignments muddle the picture from an evolutionary standpoint. Here we revise the phylogenetic relationships within this species complex
TY - JOUR. T1 - Purification and biochemical characterization of the F1-ATPase from Acidithiobacillus ferrooxidans NASF-1 and analysis of the atp operon. AU - Wakai, Satoshi. AU - Ohmori, Asami. AU - Kanao, Tadayoshi. AU - Sugio, Tsuyoshi. AU - Kamimura, Kazuo. PY - 2005/10/23. Y1 - 2005/10/23. N2 - ATPase was purified 51-fold from a chemoautotrophic, obligately acidophilic iron-oxidizing bacterium, Acidithiobacillus ferrooxidans NASF-1. The purified ATPase showed the typical subunit pattern of the F1-ATPase on a polyacrylamide gel containing sodium dodecyl sulfate, with 5 subunits of apparent molecular masses of 55, 50, 33, 20, and 18 kDa. The enzyme hydrolyzed ATP, GTP, and ITP, but neither UTP nor ADP. The Km, value for ATP was 1.8 mM. ATPase activity was optimum at pH 8.5 at 45°C, and was activated by sulfite. Azide strongly inhibited the enzyme activity, whereas the enzyme was relatively resistant to vanadate, nitrate, and N,N′- dicyclohexylcarbodiimide. The genes encoding the subunits ...
Acidithiobacillus ferrooxidans has emerged as an economically significant bacterium in the field of biohydrometallurgy, in the leaching of sulfide ores since its discovery in 1950 by Colmer, Temple and Hinkle. The discovery of A. ferrooxidans led to the development of biohydrometallurgy, which deals with all aspects of microbial mediated extraction of metals from minerals or solid wastes and acid mine drainage.[5] A. ferrooxidans has been proven as a potent leaching organism, for dissolution of metals from low-grade sulfide ores. Recently, the attention has been focused upon the treatment of mineral concentrates, as well as complex sulfide ores using batch or continuous-flow reactors. Acidithiobacillus ferrooxidans is commonly found in acid mine drainage and mine tailings. The oxidation of ferrous iron and reduced sulfur oxyanions, metal sulfides and elementary sulfur results in the production of ferric sulfate in sulfuric acid, this in turn causes the solubilization of metals and other ...
Monitoring of the microbial community in bioleaching processes is essential in order to control process parameters and enhance the leaching efficiency. Suitable methods are, however, limited as they are usually not adapted to bioleaching samples and often no taxon-specific assays are available in the literature for these types of consortia. Therefore, our study focused on the development of novel quantitative real-time PCR (qPCR) assays for the quantification of Acidithiobacillus caldus, Leptospirillum ferriphilum, Sulfobacillus thermosulfidooxidans and Sulfobacillus benefaciens and comparison of the results with data from other common molecular monitoring methods in order to evaluate their accuracy and specificity. Stirred tank bioreactors for the leaching of copper concentrate, housing a consortium of acidophilic, moderately-thermophilic bacteria, relevant in several bioleaching operations, served as a model system. The microbial community analysis via qPCR allowed a precise monitoring of the
IFO 14242 ,- A.P. Harrison, Jr., Lhet2 (isolated from culture of Thiobacillus ferrooxidans) ,- P.R. Dugan ,- D.G. Lundgren ,- W.W. Leathen ...
Nutritional Categories of Microorganisms Microorganisms are often grouped according to the sources of energy they use: Phototrophs use light as an energy source Photosynthesis Chemotrophs use chemicals as energy sources Chemoorganotroph Chemolithotroph
General Information: Temp: Mesophile; Habitat: Marine. Nitrosococcus halophilus is an obligate chemolithotroph oxidizing ammonia to nitrite. It has been isolated from saline ponds. ...
Cellular location and partial purification of the thiosulphate-oxidizing enzyme and trithionate hydrolase from Thiobacillus tepidarius ...
Domain architecture and assignment details (superfamily, family, region, evalue) for gi|198282829|ref|YP_002219150.1| from Acidithiobacillus ferrooxidans ATCC 53993. Plus protein sequence and external database links.
In situ microbial reductive immobilization of radionuclides in aquifers and saturated soils is a remedial approach that has been the subject of considerable research effort over the past decade. The essence of this approach is that many radionuclides of concern are redox active and are less soluble in their reduced form and thus can be immobilized in aquifers via microbially mediated reduction under anaerobic conditions. For example, U(VI) in the form of UO22+ and its complexes is relatively soluble in water, whereas the mineral uraninite (UO2), typically formed by U(VI)-reducing bacteria (5, 10), has very low solubility. Since the earliest reports of direct microbial reduction of uranium by Geobacter metallireducens, Shewanella oneidensis (formerly Shewanella putrefaciens), and Desulfovibrio desulfuricans (9-11), other species have also been shown to have this capability. However, recent studies have suggested that microbially mediated U(IV) oxidation could complicate efforts at long-term ...
Acidithiobacillus ferrooxidans is a gamma-proteobacterium that lives at pH2 and obtains energy by the oxidation of sulfur and iron. It is used in the biomining industry for the recovery of metals and is one of the causative agents of acid mine drainage. Effective tools for the study of its genetics and physiology are not in widespread use and, despite considerable effort, an understanding of its unusual physiology remains at a rudimentary level. Nearly complete genome sequences of A. ferrooxidans are available from two public sources and we have exploited this information to reconstruct aspects of its sulfur metabolism. Two candidate mechanisms for sulfate uptake from the environment were detected but both belong to large paralogous families of membrane transporters and their identification remains tentative. Prospective genes, pathways and regulatory mechanisms were identified that are likely to be involved in the assimilation of sulfate into cysteine and in the formation of Fe-S centers. Genes and
A combination of EXAFS, transmission electron microscopy and energy-dispersive X-ray was used to conduct a molecular and atomic analysis of the uranium complexes formed by Acidithiobacillus ferrooxidans. The results demonstrate that this bacterium accumulates uranium as phosphate compounds. We suggest that at toxic levels when the uranium enters the bacterial cells, A. ferrooxidans can detoxify and efflux this metal by a process in which its polyphosphate bodies are involved. ...
As part of their Bio-innovative activities, the research group is developing methods in Bioleaching technology for applications to tackle environmental issues and support the United Nation's Agenda for Sustainable Development.
1GY1: Crystal Structures of the met148Leu and Ser86Asp Mutants of Rusticyanin from Thiobacillus Ferrooxidans: Insights Into the Structural Relationship with the Cupredoxins and the Multi Copper Proteins
1CUR: NMR solution structure of Cu(I) rusticyanin from Thiobacillus ferrooxidans: structural basis for the extreme acid stability and redox potential.
Iron- and sulfur-oxidizing bacteria are an important part to sustaining the biogeochemical cycles of iron and sulfur in the worlds oceans and continents.
opobalsam rangatira chalkcutter Thiobacillus acinous dogmatician unwintry Melanochroid Katy unstarting vivaciousness poecilogonous terraquean mail magnetic azotoluene papilionid retender pistache repleteness recasket neckward Rhina slippage Mayathan [email protected] ...
TY - JOUR. T1 - Overproduction and substrate specificity of 3-isopropylmalate dehydrogenase from thiobacillus ferrooxidans. AU - Matsunami, Hideyuki. AU - Kawaguchi, Hiroshi. AU - Inagaki, Kenji. AU - Eguchi, Tadashi. AU - Kakinuma, Katsumi. AU - Tanaka, Hidehiko. N1 - Copyright: Copyright 2017 Elsevier B.V., All rights reserved.. PY - 1998. Y1 - 1998. N2 - We constructed an overexpression system in Escherichia coli of the leuB gene coding for 3-isopropylmalate dehydrogenase in Thiobacillus ferrooxidans. E. coli harboring the plasmid we constructed, pKK leuB1, produced 17-fold the enzyme protein of the expression system previously used for purification. The substrate specificity of the enzyme was analyzed with synthetic (2R, 3S)-3-alkylmalates. The 3-isopropylmalate dehydrogenase of Thiobacillus ferrooxidans had broad specificity toward the alkylmalates.. AB - We constructed an overexpression system in Escherichia coli of the leuB gene coding for 3-isopropylmalate dehydrogenase in Thiobacillus ...
Interaction of acidithiobacillus ferrooxidans, rhizobium phaseoli and rhodotorula sp. in bioleaching process based on lotka-volterra model . Dongwei Li ;Electronic Journal of Biotechnology 2016, 22. Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
Acidithiobacilli are acidophilic microorganisms that play important roles in many natural processes such as acidification of the environment, influencing metal mobility, and impacting on global sulfur and iron cycles. Due to their distinct metabolic properties they can be applied in the industrial extraction of valuable metals. Acidithiobacilli thrive in an environment which is extremely acidic and usually low in organic carbon but highly polluted with metals. In the quest to gain insight into how these microorganisms can thrive in their extreme environment, relevant facets of metabolism, metal resistance, and pH homeostasis were exploredwith the focus on two model organisms,. Acidithiobacillus caldus and Acidithiobacillus ferrooxidans. Understanding these fundamental aspects of an acidophilic lifestyle will help to eventually control detrimental effects on the environment due to acidification and metal pollution as well as improving metal extraction utilizing acidophilic ...
The species of the genus 'Thiobacillus' fall into the alpha-, beta- and gamma-subclasses of the Proteobacteria, the type species Thiobacillus thioparus being located in the beta-subclass. 'Thiobacillus' species exhibit almost as much diversity in DNA composition and physiology as is found collectively in all other proteobacterial groups. On the basis of physiological characters and 16S rRNA gene sequence comparisons, eight of the existing Thiobacillus species are proposed for reassignment to three newly designated genera within the gamma-subclass of the Proteobacteria, namely Acidithiobacillus, Halothiobacillus and Thermithiobacillus.
Procedures have been developed for the successful evaluation of four water treatment biocides versus the acid-producing bacteria Thiobacillus novellas and the iron oxidizing bacteria Leptotrhix discophoro, Hyphomicrobium indicium and Sphaerotilis natans. The evaluations were conducted at pH 7.0 and ambient temperature. Each biocide was tested at concentrations that represent recommended treatment dosages for industrial water systems. The Biocidal efficacy was evaluated after a 1, 4, and 7-hour contact time with the organisms. All of the biocides proved to be highly effective against L. discophora, whereas efficacy against T. novellas, H. indicium and S. natans varied.
The fly ash in two-step bioleaching dissolved earlier than that in one-step bioleaching while the calcium oxalate hydrate in two-step bioleaching formed earlier than that in one-step bioleaching. As there were minimal amount of metal ions in the medium, the formation of oxalate salts was insignificant in the pure culture and hence could not be detected in SEM, EDX and XRD analyses. The speculated growth mechanism in one-step bioleaching is the aggregation of swollen spores with fly ash particles after inoculation,. resulting in relatively large pellet nuclei. Adhesion of un-germinated spores and fly ash particle to the large pellet nuclei which contained newly-germinated spores and hyphae also occurred and resulted in a tendency to reduce the overall number of pellets in the medium [16] and [10]. This observation is consistent with the early findings of free spore aggregation Roscovitine of A.niger in batch flask culture and bubble-column fermenters [10]. Calcium oxalate precipitation affects ...
Catalyzes the first step in hexosamine metabolism, converting fructose-6P into glucosamine-6P using glutamine as a nitrogen source.
A series of bacterial and chemical leaching experiments were conducted to clarify contradictory reports in the literature regarding the role of bacteria in the bioleaching of chalcopyrite. Tests containing a high bacterial concentration showed inhibited leaching, even lower than non-inoculated controls. However, when bacterial cells were washed before inoculation, it was apparent that it was not the bacterial cells but rather the chemical species introduced with them that influenced the leaching rate. In addition, the results of comparative tests with 0.1 M ferrous sulphate or ferric sulphate showed that copper was leached from the ore 2.7 times faster in leach solutions containing ferrous ion, suggesting that ferric ions inhibit chalcopyrite dissolution. The results indicated that the chalcopyrite dissolution rate is strongly dependent on the reduction potential (Eh) in solution, and that this parameter is far more influential than the number or activity of bacterial cells. These results imply ...
Attention for Chapter 53: Leaching of Copper-Bearing Mineral Substrates with Wild Microflora and with Laboratory-Bred Strains of Thiobacillus Ferrooxidans ...
Domain architecture and assignment details (superfamily, family, region, evalue) for gi|383784923|ref|YP_005469493.1| from Leptospirillum ferrooxidans C2-3. Plus protein sequence and external database links.
Sonnleitner, R.; Redl, B.; Merschak, P.; Schinner, F. (2011): Mobilization of Metals from Pristine Mineral Soil by Nitrifying and Sulfur-Oxidizing Bacteria - The Leaching Potential of Indigenous Culture Enrichments ...
Multiplicity of the chemical, biological, electrochemical and operational variables and nonlinear behavior of metal extraction in bioleaching environments complicate the mathematical modeling of these systems. This research was done to predict copper and iron recovery from a copper flotation concentrate in a stirred tank bioreactor using a fuzzy logic model. Experiments were carried out in the presence of a mixed culture of mesophilic bacteria at 35° C, and a mixed culture of moderately thermophilic bacteria at 50° C. Input variables were method of operation (bioleaching or electrobioleaching), the type of bacteria and time (day), while the recoveries of copper and iron were the outputs. A relationship was developed between stated inputs and the outputs by means of
Arsenopyrite (FeAsS) and realgar (As4S4) are two common arsenic minerals that often cause serious environmental issues. Centralised treatment of arsenic-containing tailings can reduce land occupation and save management costs. The current work examined the remediation schemes of tailings from Hunan Province, China, where by different tailings containing arsenopyrite and realgar were blended with exogenous slag zero valence iron (ZVI). Introducing Fe-oxidising bacteria (Acidithiobacillus ferrooxidans) recreates a biologically oxidative environment. All bioleaching experiments were done over three stages, each for 7 days and the solid phase of all tests was characterised by scanning electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy and selective extraction analyses. The results showed that the mixture group reduced arsenic release by 72.9-74.7% compared with the control group. The addition of 0.2 g ZVI clearly decreased arsenic ...
Abstract: The prediction of the oxidation rate of elemental sulfur (S0) is a critical step in sulfur (S) fertilizer strategy to supply plant-available sulfur. An incubation experiment was conducted to determine the rate and amount of S0 oxidation in relation to the contribution of Thiobacillus spp. and aerobic heterotrophic S-oxidizing bacteria. After 84 days, 16.3% and 22.4% of the total S0 applied to the soil were oxidized at 20 and 30 °C, respectively. The oxidation of S0 proved to be a two-step process with a rapid oxidation during the first 28 days and a slow oxidation from then on. The highest oxidation rate of 12.8 μg S cm−2 d−1 was measured during the first two weeks at 30 °C. At 20 °C the highest oxidation rate of 10.2 μg S cm−2 d−1 was obtained from two to four weeks after start of the experiment. On an average the soil pH declined by 3.6 and 4.0 units after two weeks of experiment. At the same time the electric conductivity increased nine times. With the oxidation of S0 ...
Spent refinery processing catalyst is listed as a hazardous waste; the toxicity characteristic leaching procedure (TCLP) extracts of the catalyst are found to contain heavy metals at concentrations exceeding the regulated levels. In the present investigation, Aspergillus niger was adapted to single metal ions Ni, Mo or Al (at 100-2000 mg/L in steps of 100 mg/L) and then to a mixture of Ni, Mo and Al (at a mass ratio of 1:2:6, as approximately present in the spent catalyst). Adaptation experiments with single metals showed that the fungus could tolerate up to 1000 mg/L Ni, 1200 mg/L Mo and 2000 mg/L Al. In the presence of a mixture of these metals, the fungus was able to tolerate up to 100 mg/L Ni, 200 mg/L Mo and 600 mg/L Al. One-step bioleaching experiments with 1 wt% spent catalyst (of particle size <37 μm) were carried out using un-adapted and various adapted fungal strains. In contrast to the adapted strains, the un-adapted strain showed no growth in the presence of the catalyst. ...
ABSTRACT: Vertical distributions of viable (most probable number, MPN) aerobic chemoautotrophic thiobacilli-like sulfur-oxidizing bacteria (ca. 70 samples in triplicate for MPN counts) and dark 14C-bicarbonate incorporation rates were analyzed in a series of sulfide-rich lakes. A special device for sampling sharply stratified populations on the scale of a few centimeters was used. Detailed analyses focused on the oxic-anoxic transition zone where aerobic sulfur-oxidizing bacteria should display positive chemotaxis, and in both fully oxic epilimnia and sulfide-rich anoxic hypolimnia. Kinetics of sulfide and thiosulfate potential oxidations in the presence of oxygen were followed in microcosm enrichments in one of the lakes. The highest MPN counts (,104 to 105 cells ml-1) were observed at the oxic-anoxic interfaces and in the depleted hypolimnia (1.3 ± 4.4 × 104 cells ml-1), whereas 1 order of magnitude lower concentrations were detected in the epilimnia (1.0 ± 2.3× 103 cells ml-1). Dark ...
Copper is widely known as a very important material due to its applications in our daily life, such as electrical devices and heating appliances. It is not so common knowledge that copper is not found in its metallic form, but mixed with other metals and elements like sulphur and oxygen. The process to obtain pure copper nowadays implies a strong impact on the environment. Regarding copper sulphides, its reduction to metallic copper is based in the oxidation of the ore products which forms sulphur dioxide (SO2), amongst others. Although SO2 is sent to sulphuric acid production, there are still emissions to the environment. Since the reduction of contaminant emissions has become of a primary concern, several alternatives have been studied to replace the current process. One of the alternatives that is gaining strength is the leaching or bioleaching, where poor ores are treated with solvents (chemical leaching) or with bacteria (bioleaching). The advantages of this process is that low pressures ...
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The extraction of metals from ores causes various environmental pollutions. Since Iran is located on the so-called copper belt and holds a significant share of the worlds copper mines and resources, reduction of pollution from these mines can have an important effect on the overall reduction of pollution. Copper processing methods include pyrometallurgy and hydrometallurgy. Pyrometallurgy is mainly used in high grade mines whereas hydrometallurgy process is used in lower grade mines. In low grade copper sulfide mines, hydrometallurgy processes are used which use a lot of energy to covert mineral deposits into oxide forms which are then leached using sulfuric acid, or are extracted using bioleaching process. In acidic leaching, a lot of environmental pollution is created. Bioleaching process is an environmentally-friendly method which is mainly used in mines where the common physicochemical methods are not profitable. In this study, we have tried to increase the efficiency of bioleaching process by
Introduction: Increased usage and improper management of electronic wastes result in immense environmental pollution. Although conventional techniques are well known for heavy metals removal from the environment, their high cost and severe environmental consequences indicate the urgent requirement of cost-effective methods of heavy metals uptake. Bioaccumulation can be considered as an alternative to the traditional methods in terms of their cost-effectiveness and maximum recovery of the metal ions. Materials and Methods: This study deals with the isolation of heavy metals tolerant Gram-positive bacterial strain, Bacillus licheniformis JAJ3, and its application in bioaccumulation of copper, lead, and nickel and bioleaching of heavy metals from electronic waste. 16S rRNA sequencing was performed to identify the bacterial strain. The accumulation study was carried out in a liquid medium and analyzed using atomic absorption spectroscopy. Bioleaching activity was checked using the one-step procedure. For
Seawater wet flue gas desulfurization is a promising process for coal-fired power plants. The relationship between sulfite oxidation and different parameters in the process of desulfurization seawater recovery was investigated in a laboratory-scale experimental system. The results suggest that the effect of pH on t
Seventeen genes specifically required for nitrogen fixation are clustered on the chromosome of Klebsiella pneumoniae and form a complex regulon that is organized into eight transcriptional units. The nif promoters are representative of a new class of promoter, the members of which lack the consensus sequences normally found in prokaryotic promoters, nif gene transcription is positively controlled and requires: (1) the ntrA gene product, which replaces the rpoD-encoded sigma subunit of RNA polymerase to allow recognition of nif promoter sequences; and (2) the product of either the nitrogen regulation gene ntrC or the specific nif regulatory gene, nifA, which are both transcriptional activators. Most nif promoters require an upstream activator sequence (UAS) for nifA-mediated activation. The UAS acts independently of orientation and can function when placed 2 kilobases upstream from the transcription start site. Current evidence suggests that activation requires an interaction between proteins ...
TY - JOUR. T1 - A novel method to recover ammonia, manganese and sulfate from electrolytic manganese residues by bio-leaching. AU - Lan, Jirong. AU - Sun, Yan. AU - Guo, Li. AU - Li, Zhuoman. AU - Du, Dongyun. AU - Zhang, Tian C.. PY - 2019/6/20. Y1 - 2019/6/20. N2 - The electrolytic manganese residues (EMRs) contain variable amounts of trace metals and valuable elements, which can negatively impact the environment. This research focused on recovering valuable elements (SO 4 2− , NH 3 -N, Mn, Mg, and Fe) from EMRs by bioleaching. Bacteria (Y1) were isolated from EMRs and then acclimated for bioleaching processes. The bacteria can grow with waste molasses as the only carbon/nutrient source. After bioleaching for 8 days, 78-88%, 85-98%, 75-85%, 88-95%, and 95-99% of SO 4 2− , Mn, Mg, Fe, and NH 3 -N were leached out from EMRs with a solid-to-liquid ratio of 1:2.5 kg of EMR powder L −1 of leaching liquid. Then, the elements of NH 3 -N, Mn, Mg, and Fe were separately precipitated as (NH 4 ) 2 ...
Dr Ros Chapman is a Research Officer at the University of Cape Town (UCT). She did her undergraduate and postgraduate studies at UCT, obtaining her Honours degree in Microbiology and a PhD degree in Microbiology working on genes involved in the maintenance of intracellular redox potentials in Thiobacillus ferrooxidans.. She is presently working in Prof. A-L Williamsons group developing Mycobacterium bovis BCG as a vector for an HIV-1 vaccine. As a member of this team she is involved in the construction of shuttle vectors expressing various HIV proteins in M. bovis BCG, the modification of some of these vectors to direct the transport, secretion or localization of the HIV proteins, the characterization of the expression of these proteins, assessment of the genetic stability of the recombinant BCG and the analysis of the immunogenicity of these vaccines in mice and non-human primates. Her work also entails the supervision of postgraduate students.. Outside of the laboratory, Ros enjoys horse ...
SWISS-MODEL Template Library (SMTL) entry for 1ogp. THE CRYSTAL STRUCTURE OF PLANT SULFITE OXIDASE PROVIDES INSIGHT INTO SULFITE OXIDATION IN PLANTS AND ANIMALS
Sulfur is an essential element for life and the metabolism of organic sulfur compounds plays an important role in the global sulfur cycle. Sulfur occurs in various oxidation states ranging from +6 in sulfate to -2 in sulfide (H2S). Sulfate reduction can occur in both an energy consuming assimilatory pathway and an energy producing dissimilatory pathway. The assimilatory pathway, which is found in a wide range of organisms, produces reduced sulfur compounds for the biosynthesis of S-containing amino acids and does not lead to direct excretion of sulfide. In the dissimilatory pathway, which is restricted to obligatory anaerobic bacterial and archaeal lineages, sulfate (or sulfur) is the terminal electron acceptor of the respiratory chain producing large quantities of inorganic sulfide. Both pathways start from the activation of sulfate by reaction with ATP to form adenylyl sulfate (APS). In the assimilatory pathway [MD:M00176] APS is converted to 3-phosphoadenylyl sulfate (PAPS) and then reduced ...
Acidimicrobium ferrooxidans gen. nov., sp. nov.: mixed-culture ferrous iron oxidation with Sulfobacillus species. Microbiology, 1996, 142, 785-790 ...
Scientists from the Marine Biological Laboratory (MBL) and the Woods Hole Oceanographic Institution (WHOI) were recently awarded a $1.2 million collaborative grant from the National Science Foundation (NSF) for studies on the role of sulfur-oxidizing bacteria in salt marsh nitrogen and carbon cycling. The fieldwork will be conducted at the…
BioMinE is an integrated project under the sixth framework programme of research supported by the European Commission, which started in November 2004 and will last until October 2008 (Ref. NMP2-CT-2005-500329). It is dedicated to the evaluation of biohydrometallurgy to improve the exploitation of the European non-ferrous metal resources in a sustainable way. At the end of 2007, the Consortium of BioMinE comprised 37 partners from industry (13 including 6 Small or Medium Enterprises), research organisations (8), universities (15), and government (1). The participants are from 13 EU member states and from Serbia and South Africa (INCO Countries). For more details see http://biomine.brgm.fr.. The three main kinds of resources considered for bioleaching studies are:. - Copper polymetallics (concentrates and tailings),. - Zinc polymetallics (zinc and zinc polymetallic concentrates). - Secondary wastes (tailings, rock and metallurgical wastes, etc.). For each of these resources, amenability studies of ...
sulphide ore of copper graphite ore beneficiation process_The bioleaching of sulphide minerals with emphasis on Millions of tonnes of low-grade ore and copper-rich tailings await the development of an efficient and economic bioleach process for chalco
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Connection to public sanitary sewer. The connection of the building sewer into the public sanitary sewer shall be made at the Y-branch if such branch is available at a suitable location. If the public sanitary sewer is 12 inches in diameter or less and no properly located Y-branch is available, the owner shall, at his expense, install a Y-branch in the public sanitary sewer at the location specified by the Village. Where the public sanitary sewer is greater than 12 inches in diameter and no properly located Y-branch is available, a neat hole may be cut into the public sanitary sewer to receive the building sewer, with entry in the downstream direction at an angle of about 45°. A forty-five-degree ell may be used to make such connection, with the spigot end cut so as not to extend past the inner surface of the public sanitary sewer. The invert of the building sewer at the high point of connection shall be at the same elevation as or higher than the invert of the public sanitary sewer. A smooth, ...
Connection to public sanitary sewer. The connection of the building sewer into the public sanitary sewer shall be made at the Y-branch if such branch is available at a suitable location. If the public sanitary sewer is 12 inches in diameter or less and no properly located Y-branch is available, the owner shall, at his expense, install a Y-branch in the public sanitary sewer at the location specified by the Village. Where the public sanitary sewer is greater than 12 inches in diameter and no properly located Y-branch is available, a neat hole may be cut into the public sanitary sewer to receive the building sewer, with entry in the downstream direction at an angle of about 45°. A forty-five-degree ell may be used to make such connection, with the spigot end cut so as not to extend past the inner surface of the public sanitary sewer. The invert of the building sewer at the high point of connection shall be at the same elevation as or higher than the invert of the public sanitary sewer. A smooth, ...
... , formerly known as Thiobacillus thiooxidans until its reclassification into the newly designated ... Type strain of Acidithiobacillus thiooxidans at BacDive - the Bacterial Diversity Metadatabase (Articles with short description ... Acidithiobacillus: A. ferrooxidans and A. caldus. The complete draft genome sequence of A. thiooxidans ATCC 19377 was ... "Differentiation of Acidithiobacillus ferrooxidans and A. thiooxidans strains based on 16S-23S rDNA spacer polymorphism analysis ...
Acidithiobacillus bacteria produce sulfuric acid; Acidothiobacillus thiooxidans frequently damages sewer pipes. Ferrobacillus ... In presence of oxygen, aerobic bacteria like Acidithiobacillus thiooxidans, Thiobacillus thioparus, and Thiobacillus ...
... thiooxidans (basonym Thiobacillus thiooxidans, Thiobacillus concretivorus) oxidises sulfur and produces ... Acidithiobacillus are acidophilic obligate autotrophs (Acidithiobacillus caldus can also grow mixotrophically) that use ... Acidithiobacillus ferrooxidans is commonly found in acid mine drainage and mine tailings. The oxidation of ferrous iron and ... Acidithiobacillus spp. occur as single cells or occasionally in pairs or chains, depending on growth conditions. Highly motile ...
Other bacteria also implicated in AMD include Leptospirillum ferrooxidans, Acidithiobacillus thiooxidans and Sulfobacillus ... fungi and sulfur removal from coal with Acidithiobacillus sp.. The extraction can occur at the mine site, from waste water ... Genera such as Acidithiobacillus and Leptospirillum bacteria, and Thermoplasmatales archaea, are present in syntrophic ... particularly Acidithiobacillus ferrooxidans (synonym Thiobacillus ferrooxidans). These bacteria can accelerate pyritic ...
The bacterial culture is a mixed culture of Acidithiobacillus ferrooxidans, Acidithiobacillus thiooxidans and Leptospirillum ...
... dependent isocitrate dehydrogenase from the chemolithotroph Acidithiobacillus thiooxidans". FEMS Microbiology Letters. 214 (1 ...
"Differentiation of Acidithiobacillus ferrooxidans and A. thiooxidans strains based on 16S-23S rDNA spacer polymorphism analysis ... "Acidithiobacillus caldus" at the Encyclopedia of Life LPSN Acidithiobacillus caldus SM-1 Type strain of Acidithiobacillus ... Acidithiobacillus caldus formerly belonged to the genus Thiobacillus prior to 2000, when it was reclassified along with a ... The meaning of the prefix acidi- in the name Acidithiobacillus comes from the Latin word acidus, signifying that members of ...
... and Acidithiobacillus thiooxidans (formerly known as Thiobacillus thiooxidans). As a general principle, Fe3+ ions are used to ... Bioleaching of non-sulfidic ores by layering of waste sulfides and elemental sulfur, colonized by Acidithiobacillus spp., has ... Bioleaching can involve numerous ferrous iron and sulfur oxidizing bacteria, including Acidithiobacillus ferrooxidans (formerly ...
The candidates have been Acidithiobacillus thiooxidans (discovered in NJ, 1922), Azotobacter vinelandii (discovered in Vineland ...
In the Frasassi Caves in Italy, over 70% of cells in Snottite have been identified as Acidithiobacillus thiooxidans, with ...
Kelly DP; Wood AP (2000). "Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus ... and Thiobacilus cuprinus to Thiomonas Thiobacillus thiooxidans, Thiobacillus ferrooxidans, Thiobacillus caldus, and ... or Thermithiobacillus or Acidithiobacillus (in the Acidithiobacillia). The very loosely defined "species" Thiobacillus ... Thiobacillus albertensis to Acidithiobacillus Thiobacillus aquaesulis to Annwoodia aquaesulis. Thiobacillus neapolitanus to ...
Acidithiobacillus MeSH B03.440.400.425.103.800 - Acidithiobacillus thiooxidans MeSH B03.440.400.425.110 - Afipia MeSH B03.440. ... Acidithiobacillus MeSH B03.660.250.015.800 - Acidithiobacillus thiooxidans MeSH B03.660.250.017 - aeromonadaceae MeSH B03.660. ...
Acidithiobacillus ferrooxidans and Thiobacillus thioparus can oxidize sulfur to sulfite by means of an oxygenase enzyme, ... thiooxidans and Acidiphilum acidophilum ) as intermediate compounds, have been proposed. Some mixotrophic bacteria only oxidize ... Thurston RS, Mandernack KW, Shanks WC (2010). "Laboratory chalcopyrite oxidation by Acidithiobacillus ferrooxidans: Oxygen and ... Outside these families, other SOB described belong to the genera Acidithiobacillus, Aquaspirillum, Aquifex, Bacillus, ...
Thiobacillus ferrooxidans and Thiobacillus thiooxidans) that concentrate the iron as part of their life processes. Presence of ... How the various types of mineral deposits form within the Earth's crust Acidithiobacillus ferrooxidans - Genus of bacteria ( ...
The 2014 Ju-Jitsu World Championship were the 12th edition of the Ju-Jitsu World Championships, and were held in Paris, France from November 28 to November 30, 2014. 28.11.2014 - Men's and Women's Fighting System, Men's and Women's Jiu-Jitsu (ne-waza), Men's Duo System - Classic 29.11.2014 - Men's and Women's Fighting System, Men's and Women's Jiu-Jitsu (ne-waza), Women's Duo System - Classic 30.11.2014 - Men's Jiu-Jitsu (ne-waza), Mixed Duo System - Classic, Team event Vincent MATCZAK (2014-09-30). "4TH INVITAION TO WORLD CHAMPIONSHIP 2014" (PDF). Retrieved 2019-11-28.[dead link] Online results Official results (PDF) Mixed team event results (PDF) (All articles with dead external links, Articles with dead external links from April 2022, Ju-Jitsu World Championships, 2014 in French sport ...
Bolley L. "Bo" Johnson (born November 15, 1951) is an American politician from the state of Florida. A member of the Democratic Party, Johnson was a member of the Florida House of Representatives, and served as the Speaker of the Florida House of Representatives. Johnson is from Milton, Florida. His father and grandfather served as county commissioners for Santa Rosa County, Florida. Johnson graduated from Milton High School, and became the first member of his family to attend college. He received his bachelor's degree from Florida State University. Johnson volunteered for Mallory Horne when Horne served as the president of the Florida Senate. At the age of 22, Johnson met Lawton Chiles, then a member of the United States Senate, who hired him as a legislative aide in 1973. Johnson was elected to the Florida House of Representatives, representing the 4th district from November 7, 1978 to November 3, 1992. He also served the 1st district from November 3, 1992 to November 8, 1994. He became the ...
... may refer to: Don't Say No (Billy Squier album), a 1981 album by American rock singer Billy Squier, and its title track Don't Say No (Seohyun EP), a 2016 extended play by South Korean pop singer Seohyun, and its title track "Don't Say No" (Tom Tom Club song), from the 1988 album Boom Boom Chi Boom Boom "Don't Say No", by Robbie Williams from the 2005 album Intensive Care "Don't Say No Tonight", a 1985 single by Eugene Wilde This disambiguation page lists articles associated with the title Don't Say No. If an internal link led you here, you may wish to change the link to point directly to the intended article. (Disambiguation pages with short descriptions, Short description is different from Wikidata, All article disambiguation pages, All disambiguation pages, Disambiguation pages ...
The Dewoitine 37 was the first of a family of 1930s French-built monoplane fighter aircraft. The D.37 was a single-seat aircraft of conventional configuration. Its fixed landing gear used a tailskid. The open cockpit was located slightly aft of the parasol wing. The radial engine allowed for a comparatively wide fuselage and cockpit. Design of this machine was by SAF-Avions Dewoitine but owing to over work at that companies plant at the time, manufacture of the D.37/01 was transferred to Lioré et Olivier. They were high-wing monoplanes of all-metal construction with valve head blisters on their engine cowlings. The first prototype flew in October 1931. Flight testing resulted in the need for multiple revisions in both engine and airframe, so it was February 1934 before the second prototype flew. Its performance prompted the French government to order for 28 for the Armée de l'Air and Aéronavale. The Lithuanian government ordered 14 that remained in service with their Air Force until 1936, ...
The Noor-ul-Ain (Persian: نور العين, lit. 'the light of the eye') is one of the largest pink diamonds in the world, and the centre piece of the tiara of the same name. The diamond is believed to have been recovered from the mines of Golconda, Hyderabad in India. It was first in possession with the nizam Abul Hasan Qutb Shah, later it was given as a peace offering to the Mughal emperor Aurangazeb when he defeated him in a siege. It was brought into the Iranian Imperial collection after the Persian king Nader Shah Afshar looted Delhi in the 18th century.[citation needed] The Noor-ul-Ain is believed to have once formed part of an even larger gem called the Great Table diamond. That larger diamond is thought to have been cut in two, with one section becoming the Noor-ul-Ain and the other the Daria-i-Noor diamond. Both of these pieces are currently part of the Iranian Crown Jewels. The Noor-ul-Ain is the principal diamond mounted in a tiara of the same name made for Iranian Empress Farah ...
The Benoist Land Tractor Type XII was one of the first enclosed cockpit, tractor configuration aircraft built. Benoist used "Model XII" to several aircraft that shared the same basic engine and wing design, but differed in fuselage and control surfaces. The Type XII was a tractor-engined conversion of the model XII headless pusher aircraft that resembled the Curtiss pusher aircraft. Demonstration pilots used Benoist aircraft to demonstrate the first parachute jumps, and the tractor configuration was considered much more suitable for the task. The first example named the "Military Plane" had a small box frame covered fuselage that left the occupants mostly exposed to the wind. The later model XII "Cross Country Plane" had a full fuselage that occupants sat inside of. The first tractor biplane used a wooden fuselage with a small seat on top. The wings were covered with a Goodyear rubberized cloth. The first model XII was built in the spring of 1912. On 1 March 1912, Albert Berry used a headless ...
... (also known as Yalmotx in Qʼanjobʼal) is a town, with a population of 17,166 (2018 census), and a municipality in the Guatemalan department of Huehuetenango. It is situated at 1450 metres above sea level. It covers a terrain of 1,174 km². The annual festival is April 29-May 4. Barillas has a tropical rainforest climate (Af) with heavy to very heavy rainfall year-round and extremely heavy rainfall from June to August. Citypopulation.de Population of departments and municipalities in Guatemala Citypopulation.de Population of cities & towns in Guatemala "Climate: Barillas". Climate-Data.org. Retrieved July 26, 2020. Muni in Spanish Website of Santa Cruz Barillas Coordinates: 15°48′05″N 91°18′45″W / 15.8014°N 91.3125°W / 15.8014; -91.3125 v t e (Articles with short description, Short description is different from Wikidata, Pages using infobox settlement with no coordinates, Articles containing Q'anjob'al-language text, Coordinates on Wikidata, ...
Maria Margaret La Primaudaye Pollen (10 April 1838 - c. 1919), known as Minnie, was a decorative arts collector. As Mrs John Hungerford Pollen, she became known during the early-twentieth century as an authority on the history of textiles, publishing Seven Centuries of Lace in 1908. Maria Margaret La Primaudaye was born into a Huguenot family on 10 April 1838, the third child of the Revd Charles John La Primaudaye, a descendant of Pierre de La Primaudaye. She was educated in Italy. Her family converted to Catholicism in 1851, and it was in Rome that her father met another recent English convert, John Hungerford Pollen, previously an Anglican priest and a decorative artist. She became engaged to Pollen, who was then seventeen years her senior, in the summer of 1854, and was married in the church of Woodchester monastery, near Stroud, Gloucester, on 18 September 1855. The Pollens initially settled in Dublin, where John Hungerford Pollen had been offered the professorship of fine arts at the ...
Ronald Robert Fogleman (born January 27, 1942) is a retired United States Air Force general who served as the 15th Chief of Staff of the Air Force from 1994 to 1997 and as Commanding General of the United States Transportation Command from 1992 to 1994. A 1963 graduate from the United States Air Force Academy, he holds a master's degree in military history and political science from Duke University. A command pilot and a parachutist, he amassed more than 6,800 flying hours in fighter, transport, tanker and rotary wing aircraft. He flew 315 combat missions and logged 806 hours of combat flying in fighter aircraft. Eighty of his missions during the Vietnam War were as a "Misty FAC" in the F-100F Super Sabre at Phù Cát Air Base, South Vietnam between 25 December 1968 and 23 April 1969. Fogleman was shot down in Vietnam in 1968, while piloting an F-100. He was rescued by clinging to an AH-1 Cobra attack helicopter that landed at the crash site. In early assignments he instructed student pilots, ...
Peachtree Street" is a 1950 song co-written and recorded by Frank Sinatra in a duet with Rosemary Clooney. The song was released as a Columbia Records single. Frank Sinatra co-wrote the song with Leni Mason and Jimmy Saunders. Mason composed the music while Sinatra and Saunders wrote the lyrics. The song was arranged by George Siravo The song was released as an A side Columbia 10" 78 single, Catalog Number 38853, Matrix Number CO-43100-1 and as a 7" 33, 1-669. The B side was the re-issued "This Is the Night." Neither of the songs charted. The subject of the song is a stroll down the street in Atlanta, Georgia of the same name. Sinatra originally intended Dinah Shore to sing the duet with him. When Shore declined, Clooney was asked. The song was recorded on April 8, 1950. The song features spoken asides by Sinatra and Clooney. Rosemary Clooney asks: "Say, Frank, you wanna take a walk?" Frank Sinatra replies: "Sure, sweetie, just pick a street." He noted how there were no peach trees on the ...
... is a painting by American illustrator Norman Rockwell that depicts a Boy Scout in full uniform standing in front of a waving American flag. It was originally created by Rockwell in 1942 for the 1944 Brown & Bigelow Boy Scout Calendar. The model, Bob Hamilton, won a contest to be in the painting and personally delivered a print to the Vice President of the United States at the time, Henry A. Wallace. The painting was created to encourage Scouts to participate in the war effort during World War II. The name of the painting, We, Too, Have a Job to Do, comes from a slogan that the Boy Scouts of America used in 1942 to rally scouts to support the troops by collecting metal and planting victory gardens. The model, Bob Hamilton, won a contest with his local council in Albany, New York, to be depicted in the painting. He traveled to Rockwell's studio in Arlington, Vermont, to model for Rockwell. Since Hamilton was a scout, the uniform shown in the painting was his, unlike some ...
At least 33[failed verification] people were killed by a fuel tanker explosion in Tleil, Akkar District, Lebanon on 15 August 2021. The disaster was reportedly exacerbated by the ongoing Lebanese liquidity crisis; in which the Lebanese pound has plummeted and fuel has been in short supply. The survivors were evacuated by the Lebanese Red Cross. An investigation is underway. The fuel tanker had been confiscated by the Lebanese Armed Forces from black marketeers, the fuel was then distributed/taken by the locals. The son of the man whose land the fuel tanker was located on, was later arrested, accused of deliberately causing the explosion. Agencies (2021-08-15). "At least 20 killed and 79 injured in fuel tank explosion in Lebanon". the Guardian. Retrieved 2021-08-15. "Lebanon fuel explosion kills 22 and injures dozens more". The Independent. 2021-08-15. Archived from the original on 2021-08-15. Retrieved 2021-08-15. "Lebanon: At least 20 dead and dozens injured after fuel tank explodes as ...
The Straubing Tigers are a professional men's ice hockey team, based in Straubing, Germany, that competes in the Deutsche Eishockey Liga. Straubing plays its home games at the Eisstadion am Pulverturm, which has a capacity of 5,800 spectators. Promoted to the DEL in 2006, and operating with one of the league's smallest budgets, the team could finish no better than twelfth before the 2011-12 DEL season, when it reached the semi-finals of the playoffs. Their greatest success so far is the qualification for the season 2020-21 of the Champions Hockey League. In 1941, the then 14-year-old Max Pielmaier and his friends Max Pellkofer and Harry Poiger founded the first hockey team in Straubing. The first official game took place on the first of February 1942 in Hof and was lost by a score of 0:1. In the following year there were several games against other Bavarian teams. The game against Landshut on 31 January. 1943 was the last game during the second World War, because the young players also had to ...
Leina is a village in Saaremaa Parish, Saare County in western Estonia. Before the administrative reform in 2017, the village was in Pihtla Parish. "Lisa. Asustusüksuste nimistu" (PDF). haldusreform.fin.ee (in Estonian). Rahandusministeerium. Retrieved 5 December 2017. "Saaremaa külad endiste valdade piires". www.saaremaa.ee (in Estonian). Archived from the original on 3 December 2017. Retrieved 5 December 2017. Coordinates: 58°17′10″N 22°46′26″E / 58.28611°N 22.77389°E / 58.28611; 22.77389 v t e (CS1 Estonian-language sources (et), Articles with short description, Short description is different from Wikidata, Pages using infobox settlement with no map, Pages using infobox settlement with no coordinates, Saaremaa Parish, Coordinates on Wikidata, Villages in Saare County, All stub articles, Saare County geography stubs ...
A sestiere (plural: sestieri) is a subdivision of certain Italian towns and cities. The word is from sesto ('sixth'), so it is thus used only for towns divided into six districts. The best-known example is the sestieri of Venice, but Ascoli Piceno, Genoa, Milan and Rapallo, for example, were also divided into sestieri. The medieval Lordship of Negroponte, on the island of Euboea, was also at times divided into six districts, each with a separate ruler, through the arbitration of Venice, which were known as sestieri. The island of Crete, a Venetian colony (the "Kingdom of Candia") from the Fourth Crusade, was also divided into six parts, named after the sestieri of Venice herself, while the capital Candia retained the status of a comune of Venice. The island of Burano north of Venice is also subdivided into sestieri. A variation of the word is occasionally found: the comune of Leonessa, for example, is divided into sesti or sixths. Other Italian towns with fewer than six official districts are ...
The Island Image is a Chesapeake Bay log canoe, built in 1885 at Elliot's Island, Maryland, by Herman Jones and Isaac Moore. She is 29'-8½" long with a beam of 5-10¼", and has a straight, raking stem and a sharp stern. It is privately owned, and races under No. 17. She one of the last 22 surviving traditional Chesapeake Bay racing log canoes that carry on a tradition of racing on the Eastern Shore of Maryland that has existed since the 1840s. She is located at Chestertown, Kent County, Maryland. She was listed on the National Register of Historic Places in 1985. "National Register Information System". National Register of Historic Places. National Park Service. April 15, 2008. "Maryland Historical Trust". ISLAND IMAGE (log canoe). Maryland Historical Trust. 2008-06-14. "Island Image #17 , CBLCSA". Island Image. Chesapeake Bay Log Sailing Canoe Association. 2010-07-24. Archived from the original on 2011-07-08. Retrieved 2010-07-29. ISLAND IMAGE (log canoe), Kent County, including photo in 1984, ...
241000605222 Acidithiobacillus ferrooxidans Species 0.000 description 1 * 241000605272 Acidithiobacillus thiooxidans Species ... attaching thiobacillus thiooxidans, thiobacillus deamination and thiobacillus ferrooxidans to the active packing, enabling the ...
Integration of Biological Networks for Acidithiobacillus thiooxidans Describes a Modular Gene Regulatory Organization of ...
In this study, the growth of the indigenous Acidithiobacillus thiooxidans was predicted using artificial neural network (ANN). ... keywords = "Acidithiobacillus thiooxidans, Artificial neural network (ANN), Elemental sulfur, Gaussian, Sigmoid, Transfer ... N2 - In this study, the growth of the indigenous Acidithiobacillus thiooxidans was predicted using artificial neural network ( ... AB - In this study, the growth of the indigenous Acidithiobacillus thiooxidans was predicted using artificial neural network ( ...
The oxidation of S0 was always associated with the specie Acidithiobacillus thiooxidans, although a great diversity of ... The prototype of a biofertilizer containing isolates of SOB, A. thiooxidans and S0, encapsulated in alginate was produced ... thiooxidans and A. ferrooxidans in microspheres of alginate and chitosan alternatively, determining the S0 oxidation rates "in ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Thiobacillus thiooxidans. Acidithiobacillus thiooxidans. alpha Proteobacteria. Alphaproteobacteria. beta Proteobacteria. ...
Acidithiobacillus thiooxidans. Lahav et al., 2004; Magniont et al., 2011; Mustafa, 2009; Vollertsen et al., 2008. ...
New Insights Into Acidithiobacillus thiooxidans Sulfur Metabolism Through Coupled Gene Expression, Solution Chemistry, ...
Acidithiobacillus sp. strain SH, which was previously identified as Acidithiobacillus thiooxidans based on its 16S rRNA gene ... Acidithiobacillus sp. strain SH, which was previously identified as Acidithiobacillus thiooxidans based on its 16S rRNA gene ... Acidithiobacillus sp. strain SH, which was previously identified as Acidithiobacillus thiooxidans based on its 16S rRNA gene ... Acidithiobacillus sp. strain SH, which was previously identified as Acidithiobacillus thiooxidans based on its 16S rRNA gene ...
Acidithiobacillus ferooxidans, Acidithiobacillus thiooxidans (oxidises sulphur compounds only) and Leptospirillum ferooxidans ( ...
ACIDITHIOBACILLUS FERROOXIDANS MEDIUM defined. 1.4 Bacteria 1 71. DSMZ. ACIDITHIOBACILLUS THIOOXIDANS MEDIUM defined. 4.4 - 4.7 ...
Bacterial CS2 hydrolases from Acidithiobacillus thiooxidans strains are homologous to the archaeal catenane CS2 hydrolase. ...
Bioleaching of heavy metals from a petroleum spent catalyst using Acidithiobacillus thiooxidans in a slurry bubble column ... Cr and Ni recovery during bioleaching of dewatered metal-plating sludge using Acidithiobacillus ferrooxidans  ... Bioleaching of heavy metals from spent household batteries using Acidithiobacillus ferrooxidans : Statistical evaluation and ...
12:34, 6 September 2017 diff hist +14‎ Acidithiobacillus thiooxidans ‎ current *14:14, 31 May 2017 diff hist +50‎ Activity and ...
Acidithiobacillus thiooxidans/metabolismo , Acidithiobacillus/metabolismo , Cobre/isolamento & purificação , Metagenoma , ... The strains Acidithiobacillus thiooxidans Licanantay, Acidiphilium multivorum Yenapatur, Leptospirillum ferriphilum Pañiwe, ... thiooxidans Licanantay to oxidize iron and reduced inorganic sulfur compounds. The consortium had a greater capacity to resist ... Acidithiobacillus ferrooxidans Wenelen and Sulfobacillus thermosulfidooxidans Cutipay were selected for genome sequencing based ...
Acidithiobacillus thiooxidans (Waksman and Joffe 1922) Kelly and Wood 2000 heterotypic synonym, validly published under the ... Parent taxon: Acidithiobacillus Kelly and Wood 2000 Assigned by: Boden R, Hutt LP. Acidithiobacillus. In: Anonymous NN (eds), ... According to Kelly and Wood (2000), this species is a later heterotypic synonym of Acidithiobacillus thiooxidans (Waksman and ... Correct name: Acidithiobacillus thiooxidans (Waksman and Joffe 1922) Kelly and Wood 2000 ...
Draft genome sequence of Acidithiobacillus thiooxidans CLST isolated from the acidic hypersaline Gorbea salt flat in northern ... Bioinformatic Analyses of Unique (Orphan) Core Genes of the Genus Acidithiobacillus: Functional Inferences and Use as Molecular ... Expression and activity of the Calvin-Benson-Bassham cycle transcriptional regulator CbbR from Acidithiobacillus ferrooxidans ... Multi Locus Sequence Typing scheme for Acidithiobacillus caldus strain evaluation and differentiation. Research in Microbiology ...
  • encapsulating these SOB's, A. thiooxidans and A. ferrooxidans in microspheres of alginate and chitosan alternatively, determining the S0 oxidation rates "in vitro" and finally for evaluating the agronomic performance of those in the nutrition of corn in green-house experiments, accompanied by the monitoring of bacteria inoculated population using qPCR. (fapesp.br)
  • The gene was located in a unique genomic region, not found in A. thiooxidans strains, suggesting that the strain SH acquired this region through a horizontal gene transfer. (elsevier.com)
  • Bacterial CS2 hydrolases from Acidithiobacillus thiooxidans strains are homologous to the archaeal catenane CS2 hydrolase. (mpg.de)
  • According to Kelly and Wood (2000), this species is a later heterotypic synonym of Thiobacillus thiooxidans Waksman and Joffe 1922 (Approved Lists 1980) . (dsmz.de)
  • Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov. (dsmz.de)
  • A protein-protein basic local alignment search revealed that sulfur-oxidizing bacteria, such as Acidithiobacillus species have proteins homologous to SH-TQO, though the degree of homologies was relatively low. (elsevier.com)
  • Acidithiobacillus concretivorus is the correct name if this species is regarded as a separate species (i.e., if its nomenclatural type is not assigned to another species whose name is validly published, legitimate and not rejected and has priority) within a separate genus Acidithiobacillus . (dsmz.de)
  • The oxidation of S0 was always associated with the specie Acidithiobacillus thiooxidans, although a great diversity of organisms have this capacity on the soil. (fapesp.br)
  • The optimal medium composition of the indigenous A. thiooxidans was further predicted to be KH 2 PO 4 = 1.0 g/l, (NH 4 ) 2 SO 4 = 3.5 g/l, MgSO 4 = 0.65 g/l, and S 0 = 23 g/l with the optimal DCW being 0.722 g/l. (elsevier.com)
  • The prototype of a biofertilizer containing isolates of SOB, A. thiooxidans and S0, encapsulated in alginate was produced successfully, showing potential for the supply of sulfate in agriculture. (fapesp.br)
  • thiooxidans/albertensis, At. (vtt.fi)
  • Acidithiobacillus albertensis corrig. (irmng.org)
  • Acidithiobacillus ferooxidans , Acidithiobacillus thiooxidans (oxidises sulphur compounds only) and Leptospirillum ferooxidans (oxidizes iron substrates only). (upt.ro)
  • The reactors were inoculated with a mixed culture of iron- and sulfur-oxidising acidophiles containing Acidithiobacillus (At. (vtt.fi)
  • Column bioleaching of metals from refinery spent catalyst by Acidithiobacillus thiooxidans: Effect of operational modifications on metal extraction, metal precipitation, and bacterial attachment. (siftdesk.org)
  • The feasibility of column bioleaching in the recovery of valuable metals (Ni, V, Mo, and Al) from an uncrushed petroleum refinery spent hydroprocessing catalyst using Acidithiobacillus thiooxidans has been reported. (siftdesk.org)
  • In this study, bioleaching experiments were carried out in batch reactors with Acidithiobacillus thiooxidans or Pseudomonas putida in order to determine the potential leachability of metals contained in these tailings due to biological activity. (cichefotki.pl)
  • Bioleaching of heavy metals contami-nated sediment by pure and mixed cultures of Acidithiobacillus spp. (cibj.com)