A genus in the family ACETOBACTERACEAE consisting of chemoorganotrophic, straight rods with rounded ends. They are aerobic and acidophilic.
A family of gram-negative aerobic bacteria consisting of ellipsoidal to rod-shaped cells that occur singly, in pairs, or in chains.
A large group of bacteria including those which oxidize ammonia or nitrite, metabolize sulfur and sulfur compounds, or deposit iron and/or manganese oxides.
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.
A strictly autotrophic species of bacteria that oxidizes sulfur and thiosulfate to sulfuric acid. It was formerly called Thiobacillus thiooxidans.
Pyrrole containing pigments found in photosynthetic bacteria.
The discarding or destroying of liquid waste products or their transformation into something useful or innocuous.
Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
The relative amounts of the PURINES and PYRIMIDINES in a nucleic acid.
DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.
The relationships of groups of organisms as reflected by their genetic makeup.

Energy and electron transfer in the photosynthetic reaction center complex of Acidiphilium rubrum containing Zn-bacteriochlorophyll a studied by femtosecond up-conversion spectroscopy. (1/4)

A photosynthetic reaction center (RC) complex was isolated from a purple bacterium, Acidiphilium rubrum. The RC contains bacteriochlorophyll a containing Zn as a central metal (Zn-BChl a) and bacteriopheophytin a (BPhe a) but no Mg-BChl a. The absorption peaks of the Zn-BChl a dimer (P(Zn)), the accessory Zn-BChl a (B(Zn)), and BPhe a (H) at 4 K in the RC showed peaks at 875, 792, and 753 nm, respectively. These peaks were shorter than the corresponding peaks in Rhodobacter sphaeroides RC that has Mg-BChl a. The kinetics of fluorescence from P(Zn)(*), measured by fluorescence up-conversion, showed the rise and the major decay with time constants of 0.16 and 3.3 ps, respectively. The former represents the energy transfer from B(Zn)(*) to P(Zn), and the latter, the electron transfer from P(Zn) to H. The angle between the transition dipoles of B(Zn) and P(Zn) was estimated to be 36 degrees based on the fluorescence anisotropy. The time constants and the angle are almost equal to those in the Rb. sphaeroides RC. The high efficiency of A. rubrum RC seems to be enabled by the chemical property of Zn-BChl a and by the L168HE modification of the RC protein that modifies P(Zn).  (+info)

Preferential use of an anode as an electron acceptor by an acidophilic bacterium in the presence of oxygen. (2/4)

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Real-time PCR analysis of metabolic pathway of PHB in Acidiphilium cryptum DX1-1. (3/4)

The time, yield and related genes expression of PHB accumulation of Acidiphilium cryptum DX1-1 were investigated under four different initial C/N ratios 1.2, 2.4, 7.5, and 24. The results of time and yield of PHB accumulation show that the initial C/N ratio 2.4 was optimum for strain DX1-1 to accumulate PHB, both higher and lower initial C/N ratios did not favor that process. Based on the genome of Acidiphilium cryptum JF-5, 13 PHB accumulation related genes in strain JF-5 were chosen and successfully cloned from strain DX1-1. The differential expression of the 13 functional genes, in different C/N ratios as cited above, was then studied by Real-time PCR. The results show that all the 13 genes were most upregulated when initial C/N ratio was 2.4, and among which the gene Acry_3030 encoding poly-beta-hydroxybutyrate polymerase and Acry_0626 encoding acetyl-CoA synthetase were much more upregulated than the other genes, which prove that they play the most important role for PHB accumulation and acetate is the main initial substance for PHB accumulation for strain DX1-1. Potential regulatory motifs analysis shows that the genes related to PHB accumulation are regulated by different promoters and that the motif had weak similarity to the model promoters, suggesting that PHB- metabolism in Acidiphilium cryptum may be mediated by a different mechanism.  (+info)

Draft genome sequence of the electricigen Acidiphilium sp. strain PM (DSM 24941). (4/4)

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Biohazard level, growth media and temperature, gram stain, industrial applications and more information for Acidiphilium angustum.
Serine is derived from 3-phospho-D-glycerate, an intermediate of glycolysis [MD:M00020], and glycine is derived from serine. Threonine is an essential amino acid, which animals cannot synthesize. In bacteria and plants, threonine is derived from aspartate [MD:M00018 ...
Cysteine and methionine are sulfur-containing amino acids. Cysteine is synthesized from serine through different pathways in different organism groups. In bacteria and plants, cysteine is converted from serine (via acetylserine) by transfer of hydrogen sulfide [MD:M00021]. In animals, methionine-derived homocysteine is used as sulfur source and its condensation product with serine (cystathionine) is converted to cysteine [MD:M00338]. Cysteine is metabolized to pyruvate in multiple routes. Methionine is an essential amino acid, which animals cannot synthesize. In bacteria and plants, methionine is synthesized from aspartate [MD:M00017]. S-Adenosylmethionine (SAM), synthesized from methionine and ATP, is a methyl group donor in many important transfer reactions including DNA methylation for regulation of gene expression. SAM may also be used to regenerate methionine in the methionine salvage pathway [MD:M00034 ...
Acidiphilium multivorum (strain DSM 11245 / JCM 8867 / AIU301) is an acidophilic, aerobic, anoxygenic, phototrophic, Gram-negative bacterium isolated from pyritic acid mine drainage. A.multivorum has high ability of resistance to various metals under acidic condition, and require high acidity for growth. It exhibits tolerance towards some heavy metal ions like nickel, zinc, cadmium and copper, and resistance to arsenate and arsenite. A. multivorum has zinc-chelated-bacteriochlorophylls (Zn-Bchl) a rather than Mg-Bchl a as the major photopigment. Among the mesoacidophilic bio-mining heterotrophs, A. multivorum has the unique ability to oxidize arsenite to arsenate as well as the capability to utilize a wide range of organic compounds for growth. These features make this bacterium a suitable host for carrying purpose specific genes for developing bioleaching operations. Current trends in biohydrometallurgy emphasize genetic engineering of bio-mining bacteria to achieve further success in this ...
I finally saved enough to order a DX7 for my CPs. It should arrive in a couple of days and Im really psyched! Since it will be up to me, myself, and
Le nouvel objectif ultra grand angle AT-X 116 PRO DX II est le successeur du très populaire AT-X PRO DX 116 DX. La principale amélioration réside dans la monture Nikon. Le AT- X PRO DX 116 DX II possède maintenant un moteur interne silencieux ...
integrate 1/(sinx + cosx) dx integrate 1/(sinx + cosx) dx maybenow.com ∫ [1 /(cosx + sinx)] dx = multiply and divide the integrand by (co ...
integrate 1/(sinx + cosx) dx integrate 1/(sinx + cosx) dx maybenow.com ∫ [1 /(cosx + sinx)] dx = multiply and divide the integrand by (co ...
Looking for online definition of RH70 in the Medical Dictionary? RH70 explanation free. What is RH70? Meaning of RH70 medical term. What does RH70 mean?
Your basket is currently empty. i ,p>When browsing through different UniProt proteins, you can use the basket to save them, so that you can back to find or analyse them later.,p>,a href=/help/basket target=_top>More...,/a>,/p> ...
Dekante A.; Rostoka E.; Isajevs S.; Sokolovska J.; Ošiņa K.; Baumane L.H.; Duburs G.; Sjakste N. Correction possibilities of the parameters of nitric oxide metabolism and DNA integrity in rats with streptozotocin-induced type 1 diabetes mellitus (DMT1) and in DNT1 patients blood ex vivo.. Daugavpils Universitātes 57. Starptautiskās zinātniskās konferences tēzes. Abstracts of the 57th International scientific conference of Daugavpils University. , Daugavpils Universitātes 57. Starptautiskās zinātniskās konference the 57th International scientific conference of Daugavpils University; Daugavpils UniversitāteAkad. apgāds Saule: Daugavpils Universitātes , 2015; 108 ...
In this paper, we present a new motion compensated frame rate up-conversion algorithm that uses multiframes to enhance the accuracy of motion estimation. W
Gouy phase anomaly in photonic nanojets. Myun-Sik Kim; Scharf, Toralf; Mühlig, Stefan; Rockstuhl, Carsten; Herzig, Hans Peter // Applied Physics Letters;5/9/2011, Vol. 98 Issue 19, p191114 We investigate in real space amplitude and phase distributions of light in photonic nanojets emerging from micrometer-sized dielectric spheres with a high-resolution interference microscope. Strong localization of light and a Gouy phase anomaly are witnessed. We show that the phase advance of... ...
We report a comprehensive study on the influence of solvent and organic ligands on the up-converted emission characteristics of NaYF4 nanowires. We have modified the hydrothermal reaction procedure, and used a
Alloying of disordered GaInP with nitrogen is shown to lead to very efficient PLU in GaInNP/GaAs heterostructures grown by gas source molecular beam epitaxy (GS‐MBE). This is attributed to the N‐induced changes in the band alignment at the GaInNP/GaAs heterointerface from the type I for the N‐free structure to the type II in the samples with N compositions exceeding 0.5%. Based on the performed excitation power dependent measurements, a possible mechanism for the energy upconversion is suggested as being due to the two‐step two‐photon absorption. The photon recycling effect is shown to be important for the structures with N=1%, from time‐resolved PL measurements. © 2007 American Institute of Physics. ...
Frequency up-conversion is demonstrated in a polyfluorene-based conjugated polymer. Up-converted emission is observed upon excitation to the red of the 0-0 luminescence band. The emission intensity depends strongly on temperature and provides an accurate probe of the operating temperature of organic light-emitting diodes. Temperature rises of up to 30 K are observed at standard operating current densities of 225 mA/cm2. Due to the low thermal conductivity and heat capacity of the polymer film, the temperature of the film is found to rise slowly on a time-scale of seconds. Upon termination of the current, the temperature decreases again on a time-scale of minutes. © 2002 American Institute of Physics ...
After some much needed help please... After recent install I have found my setup will run perfectly with using a previous version of rFactor, the DX9...
Organised by the FIP Programme Committee. Chairs: Betty Chaar (The University of Sydney, Australia) and Lars-Åke Söderlund (Apoteket, Sweden). Introduction. The world has witnessed over recent years an unprecedented movement of human beings across borders at sea and over land, seeking refuge from the horrors experienced in war torn countries. It has been called a refugee crisis.. These refugees are displaced, disoriented, in dire need of shelter and healthcare. And they present challenges to even the best of developed governments, communities and healthcare systems they arrive at. Some countries they appeal for help from are already themselves burdened with the weight of past civil or political unrest. According to the United Nations, in 2014, an astounding 86 percent of refugees lived in developing countries. Refugees also increasingly live in host communities rather than refugee camps, with 60 percent living in urban settings.. According to the United Nations High Commissioner for ...

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