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)

'Acidithiobacillus thiooxidans' is a species of gram-negative, rod-shaped bacteria that derives energy from the oxidation of sulfur compounds. It is commonly found in acidic environments such as mines, caves, and soils with low pH levels. This bacterium plays a significant role in the biogeochemical cycling of sulfur and contributes to the natural attenuation of metal/sulfide-containing mine wastes. It can survive in extremely acidic conditions, with some strains able to tolerate pH levels as low as 0.5.

The primary metabolic process of 'Acidithiobacillus thiooxidans' involves the oxidation of elemental sulfur or reduced sulfur compounds (such as sulfide, thiosulfate, and tetrathionate) to produce sulfuric acid. This results in a decrease in pH and an increase in the acidity of its environment. The bacterium can also use ferrous iron as an electron donor for growth, further contributing to the acidification process.

'Acidithiobacillus thiooxidans' has potential applications in various industrial processes, including bioleaching (the extraction of metals from ores using microorganisms), bioremediation (the use of microorganisms to clean up contaminated environments), and wastewater treatment. However, its ability to acidify environments can also have negative consequences, such as accelerating corrosion in industrial settings or contributing to the formation of acid mine drainage.

"Acidithiobacillus" is a genus of bacteria that are capable of oxidizing sulfur compounds and obtaining energy from them. These bacteria are acidophilic, meaning they thrive in highly acidic environments, with optimum growth occurring at a pH between 2 and 4. They are widely distributed in nature, including in soil, water, and mining environments that have been impacted by acid mine drainage.

The genus "Acidithiobacillus" includes several species, such as "A. ferrooxidans," "A. thiooxidans," and "A. caldus." These bacteria play important roles in the biogeochemical cycles of sulfur and iron, contributing to the weathering of minerals and the formation of acidic environments. They have also been used in industrial applications, such as the bioleaching of metals from ores and the treatment of wastewaters containing high concentrations of heavy metals.

Tungsten compounds refer to chemical substances that contain tungsten (W, atomic number 74) in its ionic or molecular form. Tungsten is a heavy metal and exists in several oxidation states, most commonly +6, +4, and +2. Tungsten compounds have various applications in industrial, medical, and technological fields.

Examples of tungsten compounds include:

* Tungstic acid (WO3·2H2O)
* Sodium polytungstate (Na6WO6)
* Calcium tungstate (CaWO4)
* Tungsten carbide (WC)
* Tungsten hexafluoride (WF6)

Tungsten compounds have been used in medical imaging, such as X-ray machines and CT scanners, due to their high density and ability to absorb X-rays. They are also used in the production of surgical instruments, dental alloys, and other medical devices. However, some tungsten compounds can be toxic or carcinogenic, so proper handling and disposal are essential.

Thiobacillus is a genus of gram-negative, rod-shaped bacteria that are capable of oxidizing inorganic sulfur compounds and sulfides to produce sulfuric acid. These bacteria play a significant role in the biogeochemical cycles of sulfur and carbon, particularly in environments like soil, water, and sediments. They are widely distributed in nature and can be found in various habitats such as acid mine drainage, sewage treatment plants, and even in the human respiratory system. Some species of Thiobacillus have been used in industrial applications for the bioremediation of heavy metal-contaminated soils and wastewater treatment. However, they can also contribute to the corrosion of metals and concrete structures due to their acid production.

Sulfur is not typically referred to in the context of a medical definition, as it is an element found in nature and not a specific medical condition or concept. However, sulfur does have some relevance to certain medical topics:

* Sulfur is an essential element that is a component of several amino acids (the building blocks of proteins) and is necessary for the proper functioning of enzymes and other biological processes in the body.
* Sulfur-containing compounds, such as glutathione, play important roles in antioxidant defense and detoxification in the body.
* Some medications and supplements contain sulfur or sulfur-containing compounds, such as dimethyl sulfoxide (DMSO), which is used topically for pain relief and inflammation.
* Sulfur baths and other forms of sulfur-based therapies have been used historically in alternative medicine to treat various conditions, although their effectiveness is not well-established by scientific research.

It's important to note that while sulfur itself is not a medical term, it can be relevant to certain medical topics and should be discussed with a healthcare professional if you have any questions or concerns about its use in medications, supplements, or therapies.

Acidithiobacillus thiooxidans, 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 thiooxidans protein. Multicopper oxidase CueO. A0A2I8S2K0_9ENTR (A0A2I8S2K0). Citrobacter freundii complex sp ...
... followed by a comparative analysis with other Acidithiobacillus species whose genomes are publically available. The At. ... followed by a comparative analysis with other Acidithiobacillus species whose genomes are publically available. The At. ... been identified that could be responsible for the phenotypic differences of this strain compared to other Acidithiobacillus ... been identified that could be responsible for the phenotypic differences of this strain compared to other Acidithiobacillus ...
Bacteria Acidithiobacillus thiooxidans. 20 (70 hours with addition of 200 mM aluminum sulfate). Hours. 106585. Fischer J, ...
Biological effect of Acidithiobacillus thiooxidans on some potentially toxic elements during alteration of SON 68 nuclear glass ...
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) and red …. W Urba ska, E Borowska, A Potysz ...
Acidithiobacillus thiooxidans. *Acidithiobacillus ferrooxidans. *Acidithiobacillus caldus. Cardiobacteriales. Cardiobacteriales ...
Nomenclature of Thiobacillus thiooxidans Waksman and Joffe 1922 (Approved Lists 1980) ... In 2000, Kelly and Wood established Thiobacillus thiooxidans as the basonym of Acidithiobacillus thiooxidans (Waksman and Joffe ... Thiobacillus Thiooxidans, a New Sulfur-oxidizing Organism Isolated from the Soil. J Bacteriol 1922; 7:239-256. [PubMed]. ... The species Thiobacillus thiooxidans was originally described by Waksman and Joffe 1922. This name appeared on the Approved ...
Acidithiobacillus thiooxidans. Spec. S-S-H.neap-635-a-A-19. Halothiobacillus neapolitanus. ...
... of immobilization methods for preparing bacterial probes using acidophilic bioleaching bacteria Acidithiobacillus thiooxidans ... thiooxidans and A. ferrooxidans on chalcopyrite as revealed by atomic force microscopy with bacterial probes. Minerals ... salt concentration and loading force on colloidal interactions between Acidithiobacillus ferrooxidans cells and mineral ...
Bioleaching of hexavalent chromium from soils using Acidithiobacillus thiooxidans. Fonseca, Bruna; Rodrigues, Joana Lúcia Lima ... Bioleaching of hexavalent chromium from soils using acidithiobacillus thiooxidans. Fonseca, Bruna; Rodrigues, Joana Lúcia Lima ...
Haile T, Nakhla G. The inhibitory effect of antimicrobial zeolite on the biofilm of Acidithiobacillus thiooxidans. ... Growth inhibition by tungsten in the sulfur-oxidizing bacterium Acidithiobacillus thiooxidans. Biosci Biotechnol Biochem. 2005 ... Acidophil sulfur- oxidizing bacteria (ASOB), commonly A. Thiooxidans and A. Ferooxidans, start dominating the biofilm [30,31,32 ... Thiooxidans and A. Ferrooxidans, are thought to be the key players in this process with an optimum growth occurring around pH ...
... experiments were carried out at low pH in the presence of the sulfur oxidizing bacterium Acidithiobacillus thiooxidans. The ... experiments were carried out at low pH in the presence of the sulfur oxidizing bacterium Acidithiobacillus thiooxidans. The ... experiments were carried out at low pH in the presence of the sulfur oxidizing bacterium Acidithiobacillus thiooxidans. The ... experiments were carried out at low pH in the presence of the sulfur oxidizing bacterium Acidithiobacillus thiooxidans. The ...
A new genome of Acidithiobacillus thiooxidans provides insights into adaptation to a bioleaching environment. D Travisany, MP ... Global transcriptional responses of Acidithiobacillus ferrooxidans Wenelen under different sulfide minerals. M Latorre, N ...
  • The bioleaching was investigated: the microorganism nature: separate strains and A. ferrooxidans and A. thiooxidans consortium, bioleaching time (0 to 40 days), inoculum proportion (5 to 50% v/v), energy source (iron and sulfur) and residue concentration (1063 to 8500 mg L -1 of cobalt). (archive.org)
  • To study microbial oxidation of ferrous ions through the uranium bioleaching process, experiments were carried out in the internal loop air-lift reactor by Acidithiobacillus ferrooxidans . (nstri.ir)
  • ACID Acidisphaera rubrifaciens Arub1 Acidithiobacillus caldus Acal1 Acidithiobacillus caldus SM-1 Acal_0SM Acidithiobacillus ferrooxidans Afer2 Acidithiobacillus ferrooxidans ATCC 23270 Afer2_A Acidithiobacillus ferrooxidans ATCC 53993 Afer2_B Acidithiobacillus thiooxidans Athi Acidobacterium capsulatum Acap Acidobacterium capsulatum ATCC 51196 Acap_A Acidocella aminolytica Aami Acidocella facilis Afac Acidocella sp. (uni-freiburg.de)
  • Acidithiobacillus thiooxidans, formerly known as Thiobacillus thiooxidans until its reclassification into the newly designated genus Acidithiobacillus of the Acidithiobacillia subclass of Pseudomonadota, is a Gram-negative, rod-shaped bacterium that uses sulfur as its primary energy source. (wikipedia.org)
  • The species Thiobacillus thiooxidans was originally described by Waksman and Joffe 1922 . (namesforlife.com)
  • Reclassification of some species of Thiobacillus to the newly designated genera Acidithiobacillus gen. nov. (namesforlife.com)
  • Thiobacillus Thiooxidans, a New Sulfur-oxidizing Organism Isolated from the Soil. (namesforlife.com)
  • Described as a colorless, sulfur-oxidizing bacterium, A. thiooxidans does not accumulate sulfur either within or outside of its very small cells, which have an average size around 0.5 µm in diameter and 1 µm or less in length. (wikipedia.org)
  • Media best suited for its growth are those that are inorganic and allow A. thiooxidans to use sulfur as a source of energy. (wikipedia.org)
  • A.s thiooxidans thrives at an optimum temperature of 28-30 °C. At lower temperatures (18 °C and below) and at 37 °C or higher, sulfur oxidation and growth are significantly slower, while temperatures between 55 and 60 °C are sufficient to kill the organism. (wikipedia.org)
  • 2013) presented the first experimentally validated stoichiometric model that was able to quantitatively assess the RISCs oxidation in A. thiooxidans (strain DSM 17318), the sulfur-oxidizing acidophilic chemolithotrophic archetype. (wikipedia.org)
  • The bioleaching with A. thiooxidans was not influenced by the addition of sulfur. (archive.org)
  • Gypsum (CaSO 4 ·2H 2 O) precipitation experiments were carried out at low pH in the presence of the sulfur oxidizing bacterium Acidithiobacillus thiooxidans. (psu.edu)
  • abstract = "Gypsum (CaSO4·2H2O) precipitation experiments were carried out at low pH in the presence of the sulfur oxidizing bacterium Acidithiobacillus thiooxidans. (psu.edu)
  • strain CF27, new sequences were generated, and an update assembly and functional annotation were undertaken, followed by a comparative analysis with other Acidithiobacillus species whose genomes are publically available. (frontiersin.org)
  • CF27 have been identified that could be responsible for the phenotypic differences of this strain compared to other Acidithiobacillus species. (frontiersin.org)
  • A. thiooxidans has so far not grown on agar or other solid media, instead it prefers liquid media with a strong, evenly dispersed clouding throughout, and it produces no sediment formation or surface growth. (wikipedia.org)
  • A. thiooxidans requires only small amounts of nitrogen due to its small amount of growth, but the best sources are ammonium salts of inorganic acids, especially sulfate, followed by the ammonium salts of organic acids, nitrates, asparagine, and amino acids. (wikipedia.org)
  • Among the lineages, the A. thiooxidans presented better results and was able to bioleach cobalt amounts above 50% in most of the experiments. (archive.org)
  • Bicarbonate, however, is unnecessary because the CO2 from the atmosphere appears to be sufficient to support growth of A. thiooxidans, and would actually have an injurious effect in that it would tend to make the medium less acidic. (wikipedia.org)
  • A. thiooxidans derives all of the energy needed to satisfy its carbon requirement from the fixation of CO2. (wikipedia.org)
  • Anything with the tendency to change the medium to an alkaline state would be considered harmful to the uniform growth of A. thiooxidans, but if it is left unharmed by an excess of acid or alkali, numerous consecutive generations may be kept alive on the liquid media. (wikipedia.org)
  • Iron-oxidizing Acidithiobacillus spp. (frontiersin.org)
  • Acidithiobacillus ferooxidans , Acidithiobacillus thiooxidans (oxidises sulphur compounds only) and Leptospirillum ferooxidans (oxidizes iron substrates only). (upt.ro)
  • A. thiooxidans is a Gram-negative, rod-shaped bacterium with rounded ends that occurs in nature either as singlecells, as is the most common case, or sometimes in pairs, but rarely in triplets. (wikipedia.org)
  • 2013) presented the first experimentally validated stoichiometric model that was able to quantitatively assess the RISCs oxidation in A. thiooxidans (strain DSM 17318), the sulfur-oxidizing acidophilic chemolithotrophic archetype. (wikipedia.org)
  • A bioelectrochemical study of charge transfer in the biofilm/chalcopyrite interface was performed to investigate the effect of surficial sulfur reduced species (SRS), as non-stochiometric compounds or polysulfides (S n 2- ), and elemental sulfur (S 0 ) on a biofilm structure during the earliest stages (1, 12 and 24 h) of chalcopyrite biooxidation by A. thiooxidans alone and adding Leptospirillum sp. (preprints.org)
  • Finally, a model of S 0 biooxidation by A. thiooxidans alone or with Leptospirillum sp. (preprints.org)
  • Bioelectrochemical Changes During the Early Stages of Chalcopyrite Interaction with Acidithiobacillus thiooxidans and Leptospirillum sp. (preprints.org)
  • A. thiooxidans modifies the reactive properties of SRS and favors an acidic dissolution, which shifts into ferric when Leptospirillum sp. (preprints.org)
  • A. thiooxidans allows H + and Fe 3+ diffusion, and Leptospirillum sp. (preprints.org)
  • Acidithiobacillus ferooxidans , Acidithiobacillus thiooxidans (oxidises sulphur compounds only) and Leptospirillum ferooxidans (oxidizes iron substrates only). (upt.ro)

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