A genus of phototrophic, obligately anaerobic bacteria in the family Chlorobiaceae. They are found in hydrogen sulfide-containing mud and water environments.
A phylum of anoxygenic, phototrophic bacteria including the family Chlorobiaceae. They occur in aquatic sediments, sulfur springs, and hot springs and utilize reduced sulfur compounds instead of oxygen.
Pyrrole containing pigments found in photosynthetic bacteria.
An order of photosynthetic bacteria representing a physiological community of predominantly aquatic bacteria.
Protein complexes that take part in the process of PHOTOSYNTHESIS. They are located within the THYLAKOID MEMBRANES of plant CHLOROPLASTS and a variety of structures in more primitive organisms. There are two major complexes involved in the photosynthetic process called PHOTOSYSTEM I and PHOTOSYSTEM II.
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
Any chemical species which accepts an electron-pair from a LEWIS BASE in a chemical bonding reaction.
A family of phototrophic bacteria, in the order Rhodospirillales, isolated from stagnant water and mud.
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.
An enzyme that, in the presence of ATP and COENZYME A, catalyzes the cleavage of citrate to yield acetyl CoA, oxaloacetate, ADP, and ORTHOPHOSPHATE. This reaction represents an important step in fatty acid biosynthesis. This enzyme was formerly listed as EC 4.1.3.8.
An abrupt high-current electric discharge that occurs in the ATMOSPHERE and that has a path length ranging from hundreds of feet to tens of miles. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Inorganic salts of thiosulfuric acid possessing the general formula R2S2O3.
Proteins found in any species of bacterium.
The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001)
The transfer of energy of a given form among different scales of motion. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed). It includes the transfer of kinetic energy and the transfer of chemical energy. The transfer of chemical energy from one molecule to another depends on proximity of molecules so it is often used as in techniques to measure distance such as the use of FORSTER RESONANCE ENERGY TRANSFER.
Chemical groups containing the covalent sulfur bonds -S-. The sulfur atom can be bound to inorganic or organic moieties.
A group of cytochromes with covalent thioether linkages between either or both of the vinyl side chains of protoheme and the protein. (Enzyme Nomenclature, 1992, p539)
The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.
The functional hereditary units of BACTERIA.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
The measurement of the amplitude of the components of a complex waveform throughout the frequency range of the waveform. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION.
A family of phototrophic purple sulfur bacteria that deposit globules of elemental sulfur inside their cells. They are found in diverse aquatic environments.
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.
Processes by which phototrophic organisms use sunlight as their primary energy source. Contrasts with chemotrophic processes which do not depend on light and function in deriving energy from exogenous chemical sources. Photoautotrophy (or photolithotrophy) is the ability to use sunlight as energy to fix inorganic nutrients to be used for other organic requirements. Photoautotrophs include all GREEN PLANTS; GREEN ALGAE; CYANOBACTERIA; and green and PURPLE SULFUR BACTERIA. Photoheterotrophs or photoorganotrophs require a supply of organic nutrients for their organic requirements but use sunlight as their primary energy source; examples include certain PURPLE NONSULFUR BACTERIA. Depending on environmental conditions some organisms can switch between different nutritional modes (AUTOTROPHY; HETEROTROPHY; chemotrophy; or phototrophy) to utilize different sources to meet their nutrients and energy requirements.
Hot springs on the ocean floor. They are commonly found near volcanically active places such as mid-oceanic ridges.
A lipid-soluble benzoquinone which is involved in ELECTRON TRANSPORT in mitochondrial preparations. The compound occurs in the majority of aerobic organisms, from bacteria to higher plants and animals.
A family of phylloquinones that contains a ring of 2-methyl-1,4-naphthoquinone and an isoprenoid side chain. Members of this group of vitamin K 1 have only one double bond on the proximal isoprene unit. Rich sources of vitamin K 1 include green plants, algae, and photosynthetic bacteria. Vitamin K1 has antihemorrhagic and prothrombogenic activity.
The process by which ELECTRONS are transported from a reduced substrate to molecular OXYGEN. (From Bennington, Saunders Dictionary and Encyclopedia of Laboratory Medicine and Technology, 1984, p270)
A lipid cofactor that is required for normal blood clotting. Several forms of vitamin K have been identified: VITAMIN K 1 (phytomenadione) derived from plants, VITAMIN K 2 (menaquinone) from bacteria, and synthetic naphthoquinone provitamins, VITAMIN K 3 (menadione). Vitamin K 3 provitamins, after being alkylated in vivo, exhibit the antifibrinolytic activity of vitamin K. Green leafy vegetables, liver, cheese, butter, and egg yolk are good sources of vitamin K.
Complexes containing CHLOROPHYLL and other photosensitive molecules. They serve to capture energy in the form of PHOTONS and are generally found as components of the PHOTOSYSTEM I PROTEIN COMPLEX or the PHOTOSYSTEM II PROTEIN COMPLEX.
Spherical phototrophic bacteria found in mud and stagnant water exposed to light.
Sequential operating programs and data which instruct the functioning of a digital computer.
A process that includes the determination of AMINO ACID SEQUENCE of a protein (or peptide, oligopeptide or peptide fragment) and the information analysis of the sequence.
A genus of gram-negative, rod-shaped bacteria in the family PHYLLOBACTERIACEAE. They are able to invade root-hairs of a wide range of plants, inciting the production of PLANT ROOT NODULES.
The visual display of data in a man-machine system. An example is when data is called from the computer and transmitted to a CATHODE RAY TUBE DISPLAY or LIQUID CRYSTAL display.
The process of pictorial communication, between human and computers, in which the computer input and output have the form of charts, drawings, or other appropriate pictorial representation.
A group of enzymes which catalyze the hydrolysis of ATP. The hydrolysis reaction is usually coupled with another function such as transporting Ca(2+) across a membrane. These enzymes may be dependent on Ca(2+), Mg(2+), anions, H+, or DNA.
The use of light to convert ADP to ATP without the concomitant reduction of dioxygen to water as occurs during OXIDATIVE PHOSPHORYLATION in MITOCHONDRIA.
The 8-hydroxy derivatives inhibit various enzymes and their halogenated derivatives, though neurotoxic, are used as topical anti-infective agents, among other uses.
A tri-hydroxy cyclohexene carboxylic acid important in biosynthesis of so many compounds that the shikimate pathway is named after it.
A genus of GOLDEN-BROWN ALGAE in the family Ochromonadaceae, found mostly in freshwater. They bear two unequal FLAGELLA and are heterotrophic.
Polyunsaturated side-chain quinone derivative which is an important link in the electron transport chain of green plants during the photosynthetic conversion of light energy by photophosphorylation into the potential energy of chemical bonds.
Vibrio- to spiral-shaped phototrophic bacteria found in stagnant water and mud exposed to light.
A collective name for a group of closely related lipids that contain substitutions on the 2H-1-benzopyran-6-ol nucleus and a long hydrocarbon chain of isoprenoid units. They are antioxidants by virtue of the phenolic hydrogen. Tocopherols react with the most reactive form of oxygen and protect unsaturated fatty acids from oxidation.
A fungistatic compound that is widely used as a food preservative. It is conjugated to GLYCINE in the liver and excreted as hippuric acid.
A plant species of the family POACEAE. It is a tall grass grown for its EDIBLE GRAIN, corn, used as food and animal FODDER.

On the energetics of the photosyntheses in green sulfur bacteria. (1/61)

The quantum efficiency of photosynthesis by the green sulfur bacterium, Chlorobium thiosulfatophilum, has been determined in systems in which thiosulfate, tetrathionate, and molecular hydrogen served as electron donors. It was found that about 10 +/- 1 quanta are used for the assimilation of 1 molecule of CO(2), and that the quantum number is independent of the nature of the electron donor. These results are considered as support for the view that also in the bacterial photosyntheses the primary photochemical reaction consists in the photolysis of H(2)O, and that the chemical energy released during the oxidation of the electron donor is not utilized for CO(2) assimilation. Hence the photosynthetic processes of the green sulfur bacteria are thermodynamically less efficient than is green plant photosynthesis.  (+info)

Characterization of Chlorobium tepidum chlorosomes: a calculation of bacteriochlorophyll c per chlorosome and oligomer modeling. (2/61)

The bacteriochlorophyll (Bchl) c content and organization was determined for Chlorobium (Cb.) tepidum chlorosomes, the light-harvesting complexes from green photosynthetic bacteria, using fluorescence correlation spectroscopy and atomic force microscopy. Single-chlorosome fluorescence data was analyzed in terms of the correlation of the fluorescence intensity with time. Using this technique, known as fluorescence correlation spectroscopy, chlorosomes were shown to have a hydrodynamic radius (Rh) of 25 +/- 3.2 nm. This technique was also used to determine the concentration of chlorosomes in a sample, and pigment extraction and quantitation was used to determine the molar concentration of Bchl c present. From these data, a number of approximately 215,000 +/- 80,000 Bchl c per chlorosome was determined. Homogeneity of the sample was further characterized by dynamic light scattering, giving a single population of particles with a hydrodynamic radius of 26.8 +/- 3.7 nm in the sample. Tapping-mode atomic force microscopy (TMAFM) was used to determine the x,y,z dimensions of chlorosomes present in the sample. The results of the TMAFM studies indicated that the average chlorosome dimensions for Cb. tepidum was 174 +/- 8.3 x 91.4 +/- 7.7 x 10.9 +/- 2.71 nm and an overall average volume 90,800 nm(3) for the chlorosomes was determined. The data collected from these experiments as well as a model for Bchl c aggregate dimensions was used to determine possible arrangements of Bchl c oligomers in the chlorosomes. The results obtained in this study have significant implications on chlorosome structure and architecture, and will allow a more thorough investigation of the energetics of photosynthetic light harvesting in green bacteria.  (+info)

Exciton theory for supramolecular chlorosomal aggregates: 1. Aggregate size dependence of the linear spectra. (3/61)

The interior of chlorosomes of green bacteria forms an unusual antenna system organized without proteins. The steady-spectra (absorption, circular dichroism, and linear dichroism) have been modeled using the Frenkel Hamiltonian for the large tubular aggregates of bacteriochlorophylls with geometries corresponding to those proposed for Chloroflexus aurantiacus and Chlorobium tepidum chlorosomes. For the Cf. aurantiacus aggregates we apply a structure used previously (V. I. Prokhorenko., D. B. Steensgaard, and A. R. Holzwarth, Biophys: J. 2000, 79:2105-2120), whereas for the Cb. tepidum aggregates a new extended model of double-tube aggregates, based on recently published solid-state nuclear magnetic resonance studies (B.-J. van Rossum, B. Y. van Duhl, D. B. Steensgaard, T. S. Balaban, A. R. Holzwarth, K. Schaffner, and H. J. M. de Groot, Biochemistry 2001, 40:1587-1595), is developed. We find that the circular dichroism spectra depend strongly on the aggregate length for both types of chlorosomes. Their shape changes from "type-II" (negative at short wavelengths to positive at long wavelengths) to the "mixed-type" (negative-positive-negative) in the nomenclature proposed in K. Griebenow, A. R. Holzwarth, F. van Mourik, and R. van Grondelle, Biochim: Biophys. Acta 1991, 1058:194-202, for an aggregate length of 30-40 bacteriochlorophyll molecules per stack. This "size effect" on the circular dichroism spectra is caused by appearance of macroscopic chirality due to circular distribution of the transition dipole moment of the monomers. We visualize these distributions, and also the corresponding Frenkel excitons, using a novel presentation technique. The observed size effects provide a key to explain many previously puzzling and seemingly contradictory experimental data in the literature on the circular and linear dichroism spectra of seemingly identical types of chlorosomes.  (+info)

Presence of exclusively bacteriochlorophyll-c containing substrain in the culture of green sulfur photosynthetic bacterium Chlorobium vibrioforme strain NCIB 8327 producing bacteriochlorophyll-d. (4/61)

The light-dependent composition change of light harvesting bacteriochlorophyll(BChl)s in the present culture of a green sulfur photosynthetic bacterium Chlorobium (Chl.) vibrioforme f. sp. thiosulfatophilum strain NCIB 8327 was investigated by visible absorption spectroscopy and HPLC analyses. When the culture was repeatedly grown in liquid media under a low light condition, both the Soret and Qy absorption bands of the in vivo spectrum were shifted to longer wavelengths. Analysis of the extracted pigments by HPLC revealed that the ratio of the amount of BChl-c to that of BChl-d molecules gradually increased during repeated cultivation. In contrast, when the culture grown under a low light intensity was transferred to a high light condition and continued to be grown, the absorption bands were shifted to shorter wavelengths and the ratio of BChls-c/d decreased finally to the almost original value. Colonies were prepared on solid agar media from the liquid culture containing both BChls-c and d, which was grown under a low light intensity. Each colony obtained was found to contain either BChl-c or d, but not both of them. Two types of cells isolated in this study were derived from the same clone, judged from their genetic analyses. The variation of pigment composition in our liquid culture observed here could be ascribed to the difference of growth rates between two substrains containing BChl-c and BChl-d, respectively, depending on light conditions.  (+info)

Nine mutants of Chlorobium tepidum each unable to synthesize a different chlorosome protein still assemble functional chlorosomes. (5/61)

Chlorosomes of the green sulfur bacterium Chlorobium tepidum comprise mostly bacteriochlorophyll c (BChl c), small amounts of BChl a, carotenoids, and quinones surrounded by a lipid-protein envelope. These structures contain 10 different protein species (CsmA, CsmB, CsmC, CsmD, CsmE, CsmF, CsmH, CsmI, CsmJ, and CsmX) but contain relatively little total protein compared to other photosynthetic antenna complexes. Except for CsmA, which has been suggested to bind BChl a, the functions of the chlorosome proteins are not known. Nine mutants in which a single csm gene was inactivated were created; these mutants included genes encoding all chlorosome proteins except CsmA. All mutants had BChl c contents similar to that of the wild-type strain and had growth rates indistinguishable from or within approximately 90% (CsmC(-) and CsmJ(-)) of those of the wild-type strain. Chlorosomes isolated from the mutants lacked only the protein whose gene had been inactivated and were generally similar to those from the wild-type strain with respect to size, shape, and BChl c, BChl a, and carotenoid contents. However, chlorosomes from the csmC mutant were about 25% shorter than those from the wild-type strain, and the BChl c absorbance maximum was blue-shifted about 8 nm, indicating that the structure of the BChl c aggregates in these chlorosomes is altered. The results of the present study establish that, except with CsmA, when the known chlorosome proteins are eliminated individually, none of them are essential for the biogenesis, light harvesting, or structural organization of BChl c and BChl a within the chlorosome. These results demonstrate that chlorosomes are remarkably robust structures that can tolerate considerable changes in protein composition.  (+info)

The bchU gene of Chlorobium tepidum encodes the c-20 methyltransferase in bacteriochlorophyll c biosynthesis. (6/61)

Bacteriochlorophylls (BChls) c and d, two of the major light-harvesting pigments in photosynthetic green sulfur bacteria, differ only by the presence of a methyl group at the C-20 methine bridge position in BChl c. A gene potentially encoding the C-20 methyltransferase, bchU, was identified by comparative analysis of the Chlorobium tepidum and Chloroflexus aurantiacus genome sequences. Homologs of this gene were amplified and sequenced from Chlorobium phaeobacteroides strain 1549, Chlorobium vibrioforme strain 8327d, and C. vibrioforme strain 8327c, which produce BChls e, d, and c, respectively. A single nucleotide insertion in the bchU gene of C. vibrioforme strain 8327d was found to cause a premature, in-frame stop codon and thus the formation of a truncated, nonfunctional gene product. The spontaneous mutant of this strain that produces BChl c (strain 8327c) has a second frameshift mutation that restores the correct reading frame in bchU. The bchU gene was inactivated in C. tepidum, a BChl c-producing species, and the resulting mutant produced only BChl d. Growth rate measurements showed that BChl c- and d-producing strains of the same organism (C. tepidum or C. vibrioforme) have similar growth rates at high and intermediate light intensities but that strains producing BChl c grow faster than those with BChl d at low light intensities. Thus, the bchU gene encodes the C-20 methyltransferase for BChl c biosynthesis in Chlorobium species, and methylation at the C-20 position to produce BChl c rather than BChl d confers a significant competitive advantage to green sulfur bacteria living at limiting red and near-infrared light intensities.  (+info)

Evolution of photosystem I - from symmetry through pseudo-symmetry to asymmetry. (7/61)

The evolution of photosystem (PS) I was probably initiated by the formation of a homodimeric reaction center similar to the one currently present in green bacteria. Gene duplication has generated a heterodimeric reaction center that subsequently evolved to the PSI present in cyanobacteria, algae and plant chloroplasts. During the evolution of PSI several attempts to maximize the efficiency of light harvesting took place in the various organisms. In the Chlorobiaceae, chlorosomes and FMO were added to the homodimeric reaction center. In cyanobacteria phycobilisomes and CP43' evolved to cope with the light limitations and stress conditions. The plant PSI utilizes a modular arrangement of membrane light-harvesting proteins (LHCI). We obtained structural information from the two ends of the evolutionary spectrum. Novel features in the structure of Chlorobium tepidum FMO are reported in this communication. Our structure of plant PSI reveals that the addition of subunit G provided the template for LHCI binding, and the addition of subunit H prevented the possibility of trimer formation and provided a binding site for LHCII and the onset of energy spillover from PSII to PSI.  (+info)

The impact of different intensities of green light on the bacteriochlorophyll homologue composition of the Chlorobiaceae Prosthecochloris aestuarii and Chlorobium phaeobacteroides. (8/61)

Members of the Chlorobiaceae and Chloroflexaceae are unique among the phototrophic micro-organisms in having a remarkably rich chlorophyll pigment diversity. The physiological regulation of this diversity and its ecological implications are still enigmatic. The bacteriochlorophyll composition of the chlorobiaceae Prosthecochloris aestuarii strain CE 2404 and Chlorobium phaeobacteroides strain UdG 6030 was therefore studied by both HPLC with photodiode array (PDA) detection and liquid chromatography-mass spectrometry (LC-MS). These strains were grown in liquid cultures under green light (480-615 nm) at different light intensities (0.2-55.7 micromol photons m(-2) s(-1)), simulating the irradiance regime at different depths of the water column of deep lakes. The specific growth rates of Ptc. aestuarii under green light achieved a maximum of 0.06 h(-1) at light intensities exceeding 6 micromol photons m(-2) s(-1), lower than the maximum observed under white light (approx. 0.1 h(-1)). The maximal growth rates of Chl. phaeobacteroides under green light were slightly higher (0.07 h(-1)) than observed for Ptc. aestuarii and were achieved at 3.5 and 4.3 micromol photons m(-2) s(-1). LC-MS/MS analysis of pigment extracts revealed most (>90 %) BChl c homologues of Ptc. aestuarii to be esterified with farnesol. The homologues differed in mass by multiples of 14 Da, reflecting different alkyl subsituents at positions C-8 and C-12 on the tetrapyrrole macrocycle. The relative proportions of the individual homologues varied only slightly among different light intensities. The specific content of BChl c was maximal at 3-5 micromol photons m(-2) s(-1) [400+/-150 nmol BChl c (mg protein)(-1)]. In the case of Chl. phaeobacteroides, the specific content of BChl e was maximal at 4.3 micromol photons m(-2) s(-1) [115 nmol BChl e (mg protein)(-1)], and this species was characterized by high carotenoid (isorenieratene) contents. The major BChl e forms were esterified with a range of isoprenoid and straight-chain alcohols. The major isoprenoid alcohols comprised mainly farnesol and to a lesser extent geranylgeraniol. The straight-chain alcohols included C(15), C(15 : 1), C(16), C(16 : 1) and C(17). Interestingly, the proportion of straight alkyl chains over isoprenoid esterified side chains shifted markedly with increasing light intensity: the isoprenoid side chains dominated at low light intensities, while the straight-chain alkyl substituents dominated at higher light intensities. The authors propose that this phenomenon may be explained as a result of changing availability of reducing power, i.e. the highly reduced straight-chain alcohols have a higher biosynthetic demand for NADPH(2) than the polyunsaturated isoprenoid with the same number of carbon atoms.  (+info)

This green phototrophic bacterium is short, rod-shaped, approximately 0.5x1.0-1.5 μm in size, with rounded ends. The organism is nonmotile, gram negative, and nonsporeforming. Chlorobium ferrooxidans is strictly anaerobic. Originally isolated from shallow freshwater ditches, this bacterium has only been isolated as a coculture with a strain identified as a member of the ε-subclass of the proteobacteria closely related to Geospirillum arsenophilum. When grown in coculture, Chlorobium ferrooxidans oxidizes ferrous iron to ferric iron with stoichiometric formation of cell mass from carbon dioxide. This bacterium is important due to the fact that it is a novel green phototroph, related to other species of Chlorobium yet unique in regards to the oxidation of ferrous iron to ferric iron. This process by bacteria is a relatively novel phenomenon that has only been observed with phototrophic purple sulfur or non-sulfur bacteria (Wkddel et al., 1993; Ehrenreich and Widdel, 1994; Heising and ...
The Yellowstone National Park Research Coordination Network is a collaboration of scientists and NPS staff to develop a coordinated research network focused on geothermal biology and geochemistry.
The Yellowstone National Park Research Coordination Network is a collaboration of scientists and NPS staff to develop a coordinated research network focused on geothermal biology and geochemistry.
Photophosphorylation in vivo by Chlorobium limicola was inhibited by lipophilic cations and the energy-transfer inhibitors diphenylphosphorylazide, Dio-9, 4-chloro-7-nitrobenzofurazan and chlorhexidene. Membrane-bound ATPase activity was also inhibited by these energy-transfer inhibitors. The formation of a membrane potential was stimulated approximately 1.7-fold on illumination, rising to a value between −110 and −150 mV. The sensitivity of the processes producing this membrane potential to uncouplers, energy-transfer inhibitors and 2-heptyl-4-hydroxyquinoline-N-oxide was measured in the light and the dark.
A Chlorosome is a photosynthetic antenna complex found in green sulfur bacteria (GSB) and some green filamentous anoxygenic phototrophs (FAP) (Chloroflexaceae, Oscillochloridaceae). They differ from other antenna complexes by their large size and lack of protein matrix supporting the photosynthetic pigments. Green sulfur bacteria are a group of organisms that generally live in extremely low-light environments, such as at depths of 100 metres in the Black Sea. The ability to capture light energy and rapidly deliver it to where it needs to go is essential to these bacteria, some of which see only a few photons of light per chlorophyll per day. To achieve this, the bacteria contain chlorosome structures, which contain up to 250,000 chlorophyll molecules. Chlorosomes are ellipsoidal bodies, in GSB their length varies from 100 to 200 nm, width of 50-100 nm and height of 15 - 30 nm, in FAP the chlorosomes are somewhat smaller. Chlorosome shape can vary between species, with some species containing ...
Ras of complex proteins (Roc) is a Ras-like GTP binding domain that always occurs in tandem with the C-terminal of Roc (COR) domain, and is found in bacteria, plants and animals. Recently, it has been shown that Roco proteins belong to the family of G-proteins activated by nucleotide-dependent dimerization (GADs). We investigated the RocCOR tandem from the bacteria Chlorobium tepidum with site-directed spin labeling and pulse EPR distance measurements to follow conformational changes during the Roco G-protein cycle. Our results confirm that the COR domains are a stable dimerization device serving as a scaffold for the Roc domains, that in contrast are structurally heterogeneous and dynamic entities. Contrary to other GAD proteins, we observed only minor structural alterations upon binding and hydrolysis of GTP, indicating significant mechanistic variations within this protein class. Mutations in the most prominent member of the Roco family of proteins, leucine-rich repeat kinase 2 (LRRK2), are ...
1)Washington University in St. Louis. Taco Shell Protein: Orientation Of Antenna Protein In Photosynthetic Bacteria Described. ScienceDaily 9 April 2009. 12 April 2009 ,http://www.sciencedaily.com¬ /releases/2009/04/090402171438.htm,. ( 2)D.A. Bryant & N.-U. Frigaard (November 2006). Prokaryotic photosynthesis and phototrophy illuminated. Trends Microbiol. 14 (11): 488. doi:10.1016/j.tim.2006.09.001 (3)Beatty, J.T.; Overmann, J.; Lince, M.T.; Mansket, A.K.; Lang, A.S.; Blankenship, R.E.; Van Dover, C.L.; Martinson, T.A.; Plumley, F.G. An obligately photosynthetic bacterial anaerobe from a deep-sea hydrothermal vent. PNAS June 28, 2005 vol. 102 no. 26 9306-9310 (4)Li YF, Zhou W, Blankenship RE, Allen JP (1997) Crystal structure of the bacteriochlorophyll a protein from Chlorobium tepidum. J Mol Biol 271:456-471. (5)Olson, J. M. (1978). Bacteriochlorophyll a-proteins from green bacteria. In The Photosynthetic Bacteria (Clayton, R. K. & Sistrom, W. R., eds), pp. 161± 178, Plenum Press, ...
Graphical view by InterProScan indicates a graphical display of the arrangment of the predicted domains by InterProScan.. show/hide icon is a toggle switch to show or hide the graphical display.. PNG icon indicates the link of the PNG file of the graphical display. Table view by InterProScan indicates the summary table of the InterProScan prediction. Each InterPro ID indicates the link to the InterPro entry. [S] links to the list of genes which predicted the InterPro ID (Chlorobium species-wise prediction). [D] links to the list of genes which predicted the InterPro ID (cyanobase dataset-wise prediction). GO terms indicate the link to the GO entry. show/hide icon is a toggle switchto show or hide the table.. TableView icon indicates the link of the table page.. GFF3 icon indicates the link of the GFF file of the InterProScan prediction. Transmembrane regions predicted by SOSUI indicates the SOSUI predicted regions. Go SOSUI bottun link to the SOSUI prediction. ...
Ubiquinone (UQ), also called coenzyme Q, and plastoquinone (PQ) are electron carriers in oxidative phosphorylation and photosynthesis, respectively. The quinoid nucleus of ubiquinone is derived from the shikimate pathway; 4-hydroxybenzoate is directly formed from chorismate in bacteria, while it can be formed from either chorismate or tyrosine in yeast. The following biosynthesis of terpenoid moiety involves reactions of prenylation, decarboxylation, and three hydroxylations alternating with three methylations. The order of these reactions are somewhat different between bacteria and yeast. Phylloquinone (vitamin K1), menaquinone (vitamin K2), and tocopherol (vitamin E) are fat-soluble vitamins. Phylloquinone is a compound present in all photosynthetic plants serving as a cofactor for photosystem I-mediated electron transport. Menaquinone is an obligatory component of the electron-transfer pathway in bacteria ...
SWISS-MODEL Repository entry for A1BED6 (AROE_CHLPD), Shikimate dehydrogenase (NADP(+)). Chlorobium phaeobacteroides (strain DSM 266)
SWISS-MODEL Repository entry for A1BGZ4 (SYDND_CHLPD), Aspartate--tRNA(Asp/Asn) ligase. Chlorobium phaeobacteroides (strain DSM 266)
Deyaert, E., A. Kortholt, and W. Versées, The LRR-Roc-COR module of the Chlorobium tepidum Roco protein: crystallization and X-ray crystallographic analysis., Acta Crystallogr F Struct Biol Commun, vol. 73, issue Pt 9, pp. 520-524, 2017 Sep 01. ...
Mouse polyclonal antibody raised against a full-length human PSCD3 protein. PSCD3 (NP_004218.1, 1 a.a. ~ 399 a.a) full-length human protein. (H00009265-B01) - Products - Abnova
General Information: Pelodictyon luteolum (also called Chlorobium luteolum) is a phototropic green sulfur bacteria that inhabits hydrogen sulfide containing water and freshwater mud, brackish waters and marine environments. ...
Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis.
Nuclease that resolves Holliday junction intermediates in genetic recombination. Cleaves the cruciform structure in supercoiled DNA by nicking to strands with the same polarity at sites symmetrically opposed at the junction in the homologous arms and leaves a 5-terminal phosphate and a 3-terminal hydroxyl group.
The structure, composed of a monolayer of glycolipids with embedded proteins, that encloses the pigments and other contents of the chlorosome. [PMID:14507718, PMID:14729689, PMID:17303128]
The products offered within this site are intended to support common nutritional deficiencies that may occur from chemotherapy or radiation therapy and are not individually tailored to your needs. The products offered on this site have been developed by Dr. Dylan Foster, DC, PScD, CFMP, ONC of Post Chemo Nutrition. Advanced Nutrition and Wellness, LLC dba Post Chemo Nutrition, does not guarantee or assert any improved bodily function as a result of purchasing or consuming any product offered on this site. Under no circumstances will Advanced Nutrition and Wellness, LLC and/or its members be responsible for any loss, adverse reactions, effects, consequences, damage, affliction or illness resulting in your reliance on the content provided or consumption of products sold on this site. Advanced Nutrition and Wellness, LLC and/or its members disclaim any and all liability for products or services recommended and/or sold on the site or loss in conjunction with any content provided. The information ...
TY - JOUR. T1 - Iron-sulfur centers in the photosynthetic reaction center complex from Chlorobium vibrioforme. Differences from and similarities to the iron-sulfur centers in Photosystem I. AU - Kjær, Bodil. AU - Jung, Yean Sung. AU - Yu, Lian. AU - Golbeck, John H.. AU - Scheller, Henrik Vibe. PY - 1994/7/1. Y1 - 1994/7/1. N2 - The photosynthetic reaction center complex from the green sulfur bacterium Chlorobium vibrioforme has been isolated under anaerobic conditions. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis reveals polypeptides with apparent molecular masses of 80, 40, 30, 18, 15, and 9 kDa. The 80- and 18-kDa polypeptides are identified as the reaction center polypeptide and the secondary donor cytochrome c551 encoded by the pscA and pscC genes, respectively. N-terminal amino acid sequences identify the 40-kDa polypeptide as the bacteriochlorophyll a-protein of the baseplate (the Fenna-Matthews-Olson protein) and the 30-kDa polypeptide as the putative 2[4Fe-4S] protein ...
The green sulfur bacteria are a family of obligately anaerobic photoautotrophic bacteria. Most closely related to the distant Bacteroidetes, they are accordingly assigned their own phylum.[1] Green sulfur bacteria are nonmotile (except Chloroherpeton thalassium, which may glide)[1] and occur in spheres, rods, and spirals.[citation needed] Photosynthesis is achieved using a Type 2[citation needed] Reaction Centre using bacteriochlorophyll (BChl) a and in chlorosomes which employ BChl c, d, or e; in addition chlorophyll a is also present,.[1] They use sulfide ions, hydrogen or ferrous iron as an electron donor and the process is mediated by the type I reaction centre and Fenna-Matthews-Olson complex. Elemental sulfur deposited outside the cell may be further oxidized. By contrast, the photosynthesis in plants uses water as the electron donor and produces oxygen.[1] Chlorobium tepidum has emerged as a model organism for the group; although only 10 genomes have been sequenced, these are quite ...
BrunchClust produces 7 clusters: two complete for ATP-A and ATP-B and one incomplete for ATP-F. ATP-A and ATP-B clusters contain paralogs that are also reported as a result of clustering. There are two paralogs on the ATP-A branch one is of Rhodopirellula baltica and the second is of Methanosarcina acetivorans, and there are three paralogs on the ATP-B branch: two are from the same species as those on the ATP-A branch, i.e. Rhodopirellula baltica and Methanosarcina acetivoran, and the third is from Chlorobium tepidum. List of 30 taxa: 16 Bacteria: Aquifex aeolicus, Bacillus subtilis, Chlorobium tepidum, Corynebacterium glutamicum, Deinococcus radiodurans, Geobacillus kaustophilus, Geobacter sulfurreducens, Gloeobacter violaceus, Nostoc sp., Pseudomonas aeruginosa, Rhodopirellula baltica, Rhodopseudomonas palustris, Streptococcus thermophilus, Streptomyces coelicolor, Thermotoga maritime, Thermus thermophilus, and 14 Archaea: Aeropyrum pernix,Archaeoglobus fulgidus,Haloarcula marismortui, ...
ID B3EM59_CHLPB Unreviewed; 996 AA. AC B3EM59; DT 22-JUL-2008, integrated into UniProtKB/TrEMBL. DT 22-JUL-2008, sequence version 1. DT 20-DEC-2017, entry version 67. DE SubName: Full=FAD-dependent pyridine nucleotide-disulphide oxidoreductase {ECO:0000313,EMBL:ACE03437.1}; GN OrderedLocusNames=Cphamn1_0473 {ECO:0000313,EMBL:ACE03437.1}; OS Chlorobium phaeobacteroides (strain BS1). OC Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae; OC Chlorobium/Pelodictyon group; Chlorobium. OX NCBI_TaxID=331678 {ECO:0000313,EMBL:ACE03437.1, ECO:0000313,Proteomes:UP000001228}; RN [1] {ECO:0000313,EMBL:ACE03437.1, ECO:0000313,Proteomes:UP000001228} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=BS1 {ECO:0000313,EMBL:ACE03437.1, RC ECO:0000313,Proteomes:UP000001228}; RG US DOE Joint Genome Institute; RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., RA Tice H., Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., RA Land M., Hauser L., Kyrpides N., Ovchinnikova G., ...
Green photosynthetic bacteria adjust the structure and functionality of the chlorosome - the light absorbing antenna complex - in response to environmental stress factors. The chlorosome is a natural self-assembled aggregate of bacteriochlorophyll (BChl) molecules. In this study we report the regulation of the biogenesis of the Chlorobaculum tepidum chlorosome by carbon assimilation in conjunction with temperature changes. Our studies indicate that the carbon source and thermal stress culture of Cba. tepidum grows slower and incorporates less BChl c in the chlorosome. Compared with the chlorosome from other cultural conditions we investigated, the chlorosome from the carbon source and thermal stress culture displays: (a) smaller cross-sectional radius and overall size; (b) simplified BChl c homologues with smaller side chains; (c) blue-shifted Qy absorption maxima and (d) a sigmoid-shaped circular dichroism (CD) spectra. Using a theoretical model we analyze how the observed spectral ...
Transmission electron micrograph of a thin section of Chlorobaculum tepidum strain TLST. The black bar represents 100 nm. The electron transparent ovoid-shaped structures appressed to the inner surface of the cytoplasmic membrane are chlorosomes. courtesy Dr. Donald Bryant ...
This domain of about 175 to 200 amino acids is found, in from one to five copies, in over 50 proteins in Fibrobacter succinogenes S85, an obligate anaerobe of the rumen. Many members of this family have an apparent lipoprotein signal sequence. Conserved cysteine residues, suggestive of disulfide bond formation, are also consistent with an extracytoplasmic location for this domain. This domain can also be found in small numbers of proteins in Chlorobium tepidum and Bacteroides thetaiotaomicron ...
Search homes for sale in Green Sulphur, for free. View all 0 listings available in Green Sulphur with an average price of $0. See Maps, Photos, and More.
Planning a kids party? Look no further than GigMasters to find and book the best local kids party entertainers and vendors in Green Sulphur Springs, WV. Get started today!
In contrast, the main lipid contributors to organics preserved in modern halites and bittern beds are the extremely halophilic archaea and their organic signatures are enriched in the isoprenoids, especially phytane (Table; Barbé et al., 1990; Wang, 1998). Likewise, Waples et al. (1974) and ten Haven et al. (1986), noted that Tertiary sediments deposited in many saline evaporitic lagoons retain high concentrations of regular C25 isoprenoids. They related it to the activities of the photolithotrophic Chlorobiaceae sp., an anaerobic green sulphur bacteria, known to flourish at the halocline of modern saline lakes. It is thought to have flourished in similar stratified settings in ancient mesohaline to hypersaline seaways. Its biochemistry leads to the preservation of a series of 1-alkyl-2,3,6-trimethyl benzenes, thought to be derived from the breakdown of its aromatic carotenoids in sulphate- and sulphide-rich brines (Summons and Powell, 1987). Ten Haven et al. (1988) went on to propose that ...
Predicted to localize to cytoplasm and cytoskeleton. Is expressed in several structures, including brain; immune system; neural ectoderm; sensory organ; and somite. Orthologous to human SLAIN1 (SLAIN motif family member 1 ...
Xing, E. P., & Karp R. M. (2004). MotifPrototyper: A Bayesian Profile Model for Motif Families. Proceedings of the National Academy of Sciences of the United States of America. 101(29), 10523-10528. ...
Carbon metabolism is the most basic aspect of life. This map presents an overall view of central carbon metabolism, where the number of carbons is shown for each compound denoted by a circle, excluding a cofactor (CoA, CoM, THF, or THMPT) that is replaced by an asterisk. The map contains carbon utilization pathways of glycolysis (map00010), pentose phosphate pathway (map00030), and citrate cycle (map00020), and six known carbon fixation pathways (map00710 and map00720) as well as some pathways of methane metabolism (map00680). The six carbon fixation pathways are: (1) reductive pentose phosphate cycle (Calvin cycle) in plants and cyanobacteria that perform oxygenic photosynthesis, (2) reductive citrate cycle in photosynthetic green sulfur bacteria and some chemolithoautotrophs, (3) 3-hydroxypropionate bi-cycle in photosynthetic green nonsulfur bacteria, two variants of 4-hydroxybutyrate pathways in Crenarchaeota called (4) hydroxypropionate-hydroxybutyrate cycle and (5) ...
Carbon metabolism is the most basic aspect of life. This map presents an overall view of central carbon metabolism, where the number of carbons is shown for each compound denoted by a circle, excluding a cofactor (CoA, CoM, THF, or THMPT) that is replaced by an asterisk. The map contains carbon utilization pathways of glycolysis (map00010), pentose phosphate pathway (map00030), and citrate cycle (map00020), and six known carbon fixation pathways (map00710 and map00720) as well as some pathways of methane metabolism (map00680). The six carbon fixation pathways are: (1) reductive pentose phosphate cycle (Calvin cycle) in plants and cyanobacteria that perform oxygenic photosynthesis, (2) reductive citrate cycle in photosynthetic green sulfur bacteria and some chemolithoautotrophs, (3) 3-hydroxypropionate bi-cycle in photosynthetic green nonsulfur bacteria, two variants of 4-hydroxybutyrate pathways in Crenarchaeota called (4) hydroxypropionate-hydroxybutyrate cycle and (5) ...
Local Green Sulphur Springs West Virginia moving companies offer moving labor service including load and unload help. Hire best movers and helpers after comparing rates and reviews in your area.
Discover Lifes page about the biology, natural history, ecology, identification and distribution of Colias nastes - Artic Green Sulfur -- Discover Life mobile
Fossilized organic molecules of green sulfur bacteria are helping to u...The fossils were found in sedimentary rock commonly used to make ho...The findings are reported in the May issue of the journal Geology (...Kenig and his colleagues have spent almost 15 years trying to le... It should have been one or the other said Kenig. You cant have...,Seabed,secrets,in,English,clay,biological,biology news articles,biology news today,latest biology news,current biology news,biology newsletters
Technology Networks is an internationally recognised publisher that provides access to the latest scientific news, products, research, videos and posters.
Abstract The interaction between the purple sulfur bacterium Thiocapsa roseopersicina and the green sulfur bacterium Prosthecochloris aestuarii was studied in a gradient chamber under a 16-hours light-8-hours dark regime. The effects of interaction were inferred by comparing the final outcome of a mixed culture experiment with those of the respective axenic cultures using the same inoculation densities and experimental conditions. Densities of bacteria were deduced from radiance microprofiles, and the chemical microenvironment was investigated with O2, H2S, and pH microelectrodes. P. aestuarii always formed a biofilm below the maximal oxygen penetration depth and its metabolism was strictly phototrophic. In contrast, T. roseopersicina formed a bilayer in both the mixed and the axenic culture. The top layer formed by the latter organism was exposed to oxygen, and chemotrophic sulfide oxidation took place during the dark periods, while the bottom layer grew phototrophically during the light ...
Microtubules (MTs) are filamentous structures found throughout the cytoplasm of eukaryotic cells. They are polymers of tubulin that are involved in maintaining the structural integrity and plasticity of cells as well as the internal structures of cilia and flagella. Microtubules are also essential in several key cellular processes such as cell division and intracellular transport.. Proteins that accumulate at the ends of growing microtubules, known as MT plus end-tracking proteins, play an important role in regulating the dynamics and organization of the organelle. The SLAIN2 gene encodes one such MT plus end-tracking protein. This protein is targeted to microtubule tips by interacting with End-Binding proteins through its C-terminal domain. It is involved in cytoplasmic microtubule organization and nucleation. Through its N-terminal domain, it binds with the polymerase ch-TOG, recruiting it to the microtubule plus ends and thus ensuring microtubule elongation. ...
Niebla limicola is a fruticose lichen that grows on barren mud flats and on sand among salt scrub along the Pacific Coast of the Vizcaíno Desert, of Baja California from San Vicente Canyon to Scammons Lagoon (Guerrero Negro). The epithet, limicola is in reference to the thallus growing on barren (alkali) soil. Niebla limicola is distinguished by a hemispherical thallus lying loose on soil without a central holdfast (terricolous), divided into variously shaped branches, partly narrow in length and prismatic in cross section, and partly flattened and dilated from which short acicular bifurcating branchlets arise, the thallus up to 10 cm high and 15 cm across. The species (N. limicola) also recognized by containing salazinic acid (without triterpenes), and by a relatively thin cortex, (0-)45-75 µm thick, appearing to erode on dilated parts of branches; the thinner cortex evidently related to the contorted appearance of the branches in addition to the medulla being partly hollow (fistulose). The ...
TY - JOUR. T1 - Two dimensional electronic spectroscopy of molecular complexes. AU - Cho, Minhaeng. AU - Brixner, Tobias. AU - Stiopkin, Igor. AU - Vaswani, Harsha. AU - Fleming, Graham R.. PY - 2006/2. Y1 - 2006/2. N2 - Two dimensional (2D) heterodyne-detected electronic photon echo spectroscopy is introduced and described. We give an intuitive description of the origin and information content of 2D electronic spectra, focusing on molecular complexes. We identify two important quantities-the transition dipole term, and the transition frequency cross correlation function that controls the appearance of 2D electronic spectra. We also show how the transition frequency cross correlation function controls the rate of exciton relaxation. These concepts are illustrated with experimental data on the seven bacteriochlorophyll FMO complex of a green sulfur bacterium, showing how the pathways and mechanisms of energy flow can be elucidated by combining 2D spectra with theoretical modeling.. AB - Two ...
Natural photosynthetic pigments bacteriochlorophyllsc, d and e in green bacteria undergo self-assembly to create an organized antenna system known as the chlorosome, which collects photons and funnels the resulting excitation energy toward the reaction centers. Mimicry of chlorosome function is a central pro
Chappaz-Gillot, Cyril; Marek, Peter L.; Blaive, Bruno J.; Canard, Gabriel; Bürck, Jochen; Garab, Győző; Hahn, Horst; Jávorfi, Tamás; Kelemen, Loránd; Krupke, Ralph; Mössinger, Dennis; Ormos, Pál; Reddy, Chilla Malla; Roussel, Christian; Steinbach, Gábor; Szabó, Milán; Ulrich, Anne S.; Vanthuyne, Nicolas; Vijayaraghavan, Aravind; Zupcanova, Anita; ... mehrBalaban, Teodor Silviu ...
Expression of CYTH3 (ARNO3, cytohesin-3, GRP1, PSCD3) in spleen tissue. Antibody staining with HPA013979 in immunohistochemistry.
Acanthodii (8) Acanthomorpha (17) Acanthomorphata (9) Acariformes (9) Acaromorpha (17) Acoela (2) Actinobacteria (1) Actinopteri (17) Actinopterygii (15) Aculeata (25) Adephaga (8) Aequorlitornithes (2) Aetogate (2) Agaonidae (1) Agoniatitina (1) Aleocharinae (1) Alismatanae (4) Allotriocarida (5) Alveolata (14) Amaurobioidea (1) Ammonoidea (3) Amoebozoa (9) Amorphea (14) Amphipoda (1) Anabantiformes (1) Angiospermae (35) Anguilliformes (1) Angusteradulata (2) Animalia (102) Annelida (12) Anomalogonatae (16) Anthophila (5) Antliophora (14) Anura (1) Anystides (1) Anystina (1) Apiales (1) Apiformes (1) Apo-Tracheophyta (3) Apocrita (28) Apoditrysia (1) Apoidea (11) Apoikozoa (6) Apotracheophyta (7) Arachnida (87) Araneae (18) Araneida (1) Araneomorphae (17) Archaea (3) Archaeobranchia (1) Archaeognatha (1) Archosauria (10) Archosauromorpha (9) Archostemata (2) Arthropoda (59) Artiopoda (1) Ascomycota (13) Asgard (10) Asioryctitheria (39) Asparagales (7) Assamioidea (1) Asteiidae (1) Asteraceae ...
Fleming has compared 2-D electronic spectroscopy to the technique used in the early super-heterodyne radios, where an incoming high frequency radio signal was converted by an oscillator to a lower frequency for more controllable amplification and better reception. In the case of 2-D electronic spectroscopy, scientists can track the transfer of energy between molecules that are coupled (connected) through their electronic and vibrational states in any photoactive system, macromolecular assembly or nanostructure.. Fleming and his group first described 2-D electronic spectroscopy in a 2005 Nature paper, when they used the technique to observe electronic couplings in the Fenna-Matthews-Olson (FMO) photosynthetic light-harvesting protein, a molecular complex in green sulphur bacteria. Said Engel, The 2005 paper was the first biological application of this technique, now we have used 2-D electronic spectroscopy to discover a new phenomenon in photosynthetic systems. While the possibility that ...
Some present may remember an entertaining (not to mention illuminating (pun intended) ) blog by Professor Larry Moran:. http://sandwalk.blogspot.ca/2016/04/fun-and-games-with-otangelo-grasso.html. I am a high school Biology teacher and Professor Moran threw out some challenges which cut me to the quick.. Here is a very brief and incomplete summary:. The dual photosystems of Blue-Green Algae clearly evolved late from a combination of a type I reaction center in species like Heliobacter and green sulfur bacteria and a type II reaction center from species like purple bacteria and green filamentous bacteria. The oxygen evolving complex was a late addition.. Both photosystems employ Porphyrins and Carotenoids which are important in various metabolic processes (not just photosynthesis) meaning their evolutionary history may reflect many other functions only to be co-opted later for photosynthesis. Meanwhile both can be demonstrated to have abiogenic origins.. Meanwhile RuBisCO is found in ...
Photic zone euxinia (PZE) has proven important for elucidating biogeochemical changes that occur during oceanic anoxic events, including mass extinction and conditions associated with unique fossil preservation. Organic geochemical analyses of a 380 Ma invertebrate fossil, which included well-preserved soft tissues, from the Gogo Formation (Canning Basin, Western Australia) showed biomarkers and stable isotopic values characteristic of PZE and a consortium of sulfate-reducing bacteria, which lead to exceptional fossil and biomarker preservation. The carbonate concretion contained phytoplankton, green sulfur bacteria (Chlorobi), and sulfate-reducing bacteria biomarkers with an increasing concentration toward the nucleus where the fossil is preserved. The spatial distribution of cholestane unequivocally associated with the fossilized tissue and its high relative abundance to the total steranes suggest that the fossil is a crustacean. The presence of an active sulfur cycle in this Devonian system, ...
Download this Research On The Green Bacteria photo now. And search more of the webs best library of royalty-free stock images from iStock.
TY - JOUR. T1 - Anisotropic organization and microscopic manipulation of self-assembling synthetic porphyrin microrods that mimic chlorosomes. T2 - Bacterial light-harvesting systems. AU - Chappaz-Gillot, Cyril. AU - Marek, Peter L.. AU - Blaive, Bruno J.. AU - Canard, Gabriel. AU - Bürck, Jochen. AU - Garab, G.. AU - Hahn, Horst. AU - Jávorfi, Tamás. AU - Kelemen, L.. AU - Krupke, Ralph. AU - Mössinger, Dennis. AU - Ormos, P.. AU - Reddy, Chilla Malla. AU - Roussel, Christian. AU - Steinbach, Gábor. AU - Szabó, Milán. AU - Ulrich, Anne S.. AU - Vanthuyne, Nicolas. AU - Vijayaraghavan, Aravind. AU - Zupcanova, Anita. AU - Balaban, Teodor Silviu. PY - 2012/1/18. Y1 - 2012/1/18. N2 - Being able to control in time and space the positioning, orientation, movement, and sense of rotation of nano- to microscale objects is currently an active research area in nanoscience, having diverse nanotechnological applications. In this paper, we demonstrate unprecedented control and maneuvering of ...
The protein is actually located in chlorosome. Transfer energy was calculated with hetero-atoms. This is solid state NMR model ...
Absorption spectra of BChl a-associated proteins from various C. tepidum strains recovered by Ni2+-affinity purification.Absorption spectra (traces 1-6) of BChl
Free flashcards to help memorize facts about Drugs. Other activities to help include hangman, crossword, word scramble, games, matching, quizes, and tests.
1991; Chlorobium tepidum Wahlund et al. 1996]. *Species C. thiosulfatiphilum Imhoff 2003 ["Chlorobium limicola f. sp. ... Genus Chlorobium Nadson 1906 emend. Imhoff 2003 *Species Chlorobium chlorovibrioides[notes 2](Gorlenko et al. 1974) Imhoff 2003 ... Chlorobium tepidum, a member of green sulfur bacteria was found to be mixotroph due to its ability to use inorganic and organic ... 2006 (epibiont of the phototrophic consortium Chlorochromatium aggregatum) ["Chlorobium chlorochromatii" Meschner 1957] ...
Chlorobium), Green non-sulfur bacteria (e.g. Chloroflexus), or the heliobacteria (Low %G+C Gram positives). In addition to ...
... the dominant species identified were Chlorobium vibrioforme and Chlorobium limicola. Thiocapsa roseopersicina and ... In the anoxic water zone (temperature range of −5 °C (23 °F) to −2.2 °C (28.0 °F)) of the lake, Chlorobium spp. and T. ... The dominance of the species Chlorobium spp. was attributed to "more efficient maintenance metabolism in winter and of their ... Other dominant varieties of bacteria found are Chlorobium vibrioforme and C. limicola. The minor species identified are ...
Chlorobium and Rhizobial species). The proteins are of about 480 aas with 12-14 putative TMSs. An open reading frame (ORF) from ...
Castenholz RW, Bauld J, Jørgenson BB (1990-12-01). "Anoxygenic microbial mats of hot springs: thermophilic Chlorobium sp". FEMS ...
Fenna, R. E.; Matthews, B. W. (1975). "Chlorophyll arrangement in a bacteriochlorophyll protein from Chlorobium limicola". ... "The reaction center complex from the green sulfur bacterium Chlorobium tepidum: a structural analysis by scanning transmission ...
Chlorobium tepidum) enzyme catalyses the final step in the de novo synthesis of tetrahydrobiopterin from GTP. Cho SH, Na JU, ... Youn H, Hwang CS, Lee CH, Kang SO (June 1999). "Sepiapterin reductase producing L-threo-dihydrobiopterin from Chlorobium ... crystallization and preliminary X-ray analysis of sepiapterin reductase from Chlorobium tepidum". Acta Crystallographica ...
Fenna RE, Matthews BW (1975). "Chlorophyll arrangement in a bacteriochlorophyll protein from Chlorobium limicola". Nature. 258 ...
Examples of phototroph organisms are: Rhodobacter capsulatus, Chromatium, Chlorobium etc. Originally used with a different ...
Genus Chlorobium. *Genus Ancalochloris. *Genus Chloroherpeton. *Genus Clathrochloris. *Genus Pelodictyon. *Genus ...
Kim W, Tabita FR (September 2006). "Both subunits of ATP-citrate lyase from Chlorobium tepidum contribute to catalytic activity ...
July 2002). "The complete genome sequence of Chlorobium tepidum TLS, a photosynthetic, anaerobic, green-sulfur bacterium". ...
Grieni Schwäfelbakterie (z. B. Chlorobium) bzw. au Heliobacteriaceae (Heliobacterium) hän e Reakzionszäntrum vum Typ I. Bi dr ...
2002). "The complete genome sequence of Chlorobium tepidum TLS, a photosynthetic, anaerobic, green-sulfur bacterium". Proc. ...
Yamanaka, T.; Fukumori, Y.; Okunuki, K. (1979). "Preparation of subunits of flavocytochromes c derived from Chlorobium limicola ...
Desulfuromonas acetooxidans is able to grow in cocultures with green sulfur bacteria such as Chlorobium (vibrioforme and ... "Exemplar Abstract for Chlorobium vibrioforme Pelsh 1936 (Approved Lists 1980) and Prosthecochloris vibrioformis (Pelsh 1936) ...
Chlorobium tepidum and proteobacteria): implications regarding the origin of photosynthesis". Molecular Microbiology. 32 (5): ...
It was discovered by Evans, Buchanan and Arnon in 1966 working with the photosynthetic green sulfur bacterium Chlorobium ...
Kusai K, Yamanaka T (November 1973). "The oxidation mechanisms of thiosulphate and sulphide in Chlorobium thiosulphatophilum: ...
Some PPases from Anaerostipes caccae, Chlorobium limicola, Clostridium tetani, and Desulfuromonas acetoxidans have been ...
Chlorobium tepidum and proteobacteria): Implications regarding the origin of photosynthesis". Mol Microbiol. 32 (5): 893-906. ...
Wregglesworth, K.M; Barker, D (2015). "A comparison of the protein-coding genomes of two green sulphur bacteria, Chlorobium ...
Additional structures of heteromeric ACLY-A/B from the green sulfur bacteria Chlorobium limicola and the archaeon Methanosaeta ...
These two gradients promote the growth of different microorganisms such as Clostridium, Desulfovibrio, Chlorobium, Chromatium, ...
These two gradients promote the growth of different microorganisms such as Clostridium, Desulfovibrio, Chlorobium, Chromatium, ...
Chlorobiaceae Chlorobium limicola Chlorobium phaeobacteroides Chlorobium phaeovibrioides Chlorobium vibrioforme Chlorobium ...
Chlorobium, Chloroherpeton) Bacteroides, Flavobacteria and relatives (later renamed Bacteroidetes Bacteroides (Bacteroides, ...
... is produced by green sulfur bacteria (Chlorobium) which perform photosynthesis using hydrogen sulfide rather ...
Actinobacteria Aquificae Hydrogenobacter and Aquifex Chloroflexi Chlorobi - Chlorobium Deferribacteres Gemmatimonadetes ...
Chlorobium chlorochromatii, originally known as Chlorobium aggregatum, is a symbiotic green sulfur bacteria that performs ... Chlorobium chlorochromatii prefer environments with low temperature and low sulfur concentrations. Chlorobium chlorochromatii, ... doi:10.1111/j.1365-2427.2004.01270.x. "Summary of Chlorobium chlorochromatii". Summary of Chlorobium chlorochromatii, Strain ... "Chlorobium chlorochromatii sp. nov., a symbiotic green sulfur baterium isolated from the phototrophic consortium "Chlorobium ...
Chlorobium tepidum contains a genome that contains 2.15 Mbp. There are a total of 2,337 genes (of these genes, there are 2,245 ... Chlorobium tepidum is an anaerobic, thermophilic green sulfur bacteria first isolated from New Zealand. Cells are gram-negative ... Frigaard NU, Voigt GD, Bryant DA (June 2002). "Chlorobium tepidum mutant lacking bacteriochlorophyll c made by inactivation of ... July 2002). "The complete genome sequence of Chlorobium tepidum TLS, a photosynthetic, anaerobic, green-sulfur bacterium". ...
Chlorobium phaeovibrioides DSM 265, complete genome Chlorobium phaeovibrioides DSM 265, complete genome. gi,145218822,ref,NC_ ...
Chlorobium bathyomarinum - Chlorobium gokarna - Chlorobium sp. 6GSB - Chlorobium sp. 8GSB - Chlorobium sp. 200T-80 - Chlorobium ... Genus: Chlorobium Species: Chlorobium limicola - Chlorobium phaeovibrioides - Chlorobium sp. - Chlorobium phaeobacteroides - ... chlorochromatii - Chlorobium sp. Mog4 - Chlorobium sp. ShCl03 - Chlorobium sp. 2320 - Chlorobium sp. sy9 ... Retrieved from "https://species.wikimedia.org/w/index.php?title=Chlorobium&oldid=7771263" ...
Chlorobium ferrooxidans Bacteria- Chlorobi- Chlorobia- Chlorobiales- Chlorobiaceae- Chlorobium/Pelodictyon group- Chlorobium- ... Chlorobium ferrooxidans. From MicrobeWiki, the student-edited microbiology resource. Revision as of 23:21, 14 March 2010 by ... This bacterium is important due to the fact that it is a novel green phototroph, related to other species of Chlorobium yet ... Chlorobium ferrooxidans sp. nov., a phototrophic green sulfur bacterium that oxidizes ferrous iron in coculture with a " ...
Sulfur metabolism - Chlorobium chlorochromatii [ Pathway menu , Organism menu , Pathway entry , Download KGML , Show ...
C. tepidum is a member of the Chlorobium genera and are closely related, yet distinct from, the Bacteroides genera (2). As a ... By contructing a phylogenetic tree, it was determined that the isolated colony is most closely related to Chlorobium and ... Chlorobium FMO antenna complex characterisation. From MicrobeWiki, the student-edited microbiology resource ... 4)Li YF, Zhou W, Blankenship RE, Allen JP (1997) Crystal structure of the bacteriochlorophyll a protein from Chlorobium tepidum ...
Keywords: pteridine glycosyltransferase; Chlorobium tepidum; tetrahydrobiopterin; UDP-N-acetylglucosamine; L. -threo- ... The pteridine glycosyltransferase (PGT) found in Chlorobium tepidum (CtPGT) catalyzes the conversion of L. -threo- ... Chlorobium tepidum is a thermophilic, anaerobic phototrophic bacterium. It is one of the primitive model organisms used in the ... has been reported that a glycosylated form of BH4 is present in some prokaryotes such as Sulfolobus solfataricus and Chlorobium ...
... of Chlorobium tepidum, Gram-negative, thermophilic, obligatory autotrophic, green sulphur prokaryote (bacterium). Chlorobium ... Chlorobium tepidum utilization of nitrogen and sulphur compounds is also important in the global cycles of both nutrients. ... Coloured scanning electron micrograph (SEM) of Chlorobium tepidum, Gram-negative, thermophilic, obligatory autotrophic, green ... sulphur prokaryote (bacterium). Chlorobium species grow in dense mats over hot springs and other sulphide-rich waters, mud, and ...
Ubiquinone and other terpenoid-quinone biosynthesis - Chlorobium limicola [ Pathway menu , Organism menu , Pathway entry , ...
sp,Q3B3L3,HIS8_CHLL7 Histidinol-phosphate aminotransferase OS=Chlorobium luteolum (strain DSM 273 / 2530) OX=319225 GN=hisC PE= ... Chlorobium luteolum (strain DSM 273 / 2530) (Pelodictyon luteolum). ,p>This subsection of the ,a href="http://www.uniprot.org/ ...
sp,B3ELV3,PUR9_CHLPB Bifunctional purine biosynthesis protein PurH OS=Chlorobium phaeobacteroides (strain BS1) OX=331678 GN= ... Chlorobium phaeobacteroides (strain BS1). ,p>This subsection of the ,a href="http://www.uniprot.org/help/names_and_taxonomy_ ... Chlorobium/Pelodictyon group › ChlorobiumChlorobium phaeobacteroides ...
Abstract: W26.00010 : Novel Photo-Protecticon Mechanisms in Chlorosomes from Green Sulfur Bacterium \textit{Chlorobium Tepidum} ...
A gene lineage (SAR406) related to Chlorobium and Fibrobacter species was found in 16S rRNA gene clone libraries prepared from ... Detection of stratified microbial populations related to Chlorobium and Fibrobacter species in the Atlantic and Pacific oceans. ... Detection of stratified microbial populations related to Chlorobium and Fibrobacter species in the Atlantic and Pacific oceans. ... Detection of stratified microbial populations related to Chlorobium and Fibrobacter species in the Atlantic and Pacific oceans. ...
The new phototrophs are described as a new species of the genus Chlorobium, Chlorobium tepidum. ... Chlorobium tepidum Photosynthesis Green sulfur bacteria Chlorosomes Bacteriochlorophyll Thermophily Hot springs 16S rRNA ... Heda GD, Madigan MT (1986) Aspects of nitrogen fixation in Chlorobium. Arch Microbiol 143:330-336CrossRefGoogle Scholar ... Thermophilic green sulfur bacteria of the genus Chlorobium were isolated from certain acidic high sulfide New Zealand hot ...
It has recently been proposed that the genera Chlorobium and Pelodictyon are synonymous. To investigate generic boundaries for ... protein families were predicted computationally based on sequence similarity across the genome-wide protein sets of Chlorobium ... Chlorobium tepidum and Pelodictyon phaeoclathratiforme are organisms within the green sulphur bacteria family, Chlorobiaceae, ... The TLS strain was sequenced in 2002 [5]. It is the only thermophilic Chlorobium, optimally growing at a temperature of 48 °C. ...
... complex isolated from the green sulfur bacterium Chlorobium tepidum was determined from projections of negatively stained ... The three-dimensional (3D) structure of the reaction center (RC) complex isolated from the green sulfur bacterium Chlorobium ... Membrane proteome of the green sulfur bacterium Chlorobium tepidum (syn. Chlorobaculum tepidum) analyzed by gel-based and gel- ... The reaction center complex from the green sulfur bacterium Chlorobium tepidum: a structural analysis by scanning transmission ...
Fingerprint Dive into the research topics of Iron-sulfur centers in the photosynthetic reaction center complex from Chlorobium ... N2 - The photosynthetic reaction center complex from the green sulfur bacterium Chlorobium vibrioforme has been isolated under ... AB - The photosynthetic reaction center complex from the green sulfur bacterium Chlorobium vibrioforme has been isolated under ... The photosynthetic reaction center complex from the green sulfur bacterium Chlorobium vibrioforme has been isolated under ...
cyanobase/Chlorobium/genes/CT1525.fna -- DNA sequence in fasta format.. */cyanobase/Chlorobium/genes/CT1525.faa -- Amino acids ... S] links to the list of genes which predicted the InterPro ID (Chlorobium species-wise prediction). [D] links to the list of ...
Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae; Chlorobium; Chlorobium chlorochromatii; Chlorobium chlorochromatii ... B Chlorobium chlorochromatii (strain CaD3). Information. UniProt identifier:. CHLCH. NCBI Taxonomy ID:. 340177. DB Name:. ... Chlorobium chlorochromatii CaD3, complete genome.. DB Release:. 30-JAN-2014 (Rel. 119, Last updated, Version 6). Web link:. www ...
A Refined Model of the Chlorosomal Antennae of the Green Bacterium Chlorobium tepidum from Proton Chemical Shift Constraints ...
Graphical representation of Lipopolysaccharide biosynthesis (Chlorobium chlorochromatii CaD3) (PNG image hosted by the Kyoto ... Model of "Lipopolysaccharide biosynthesis" in "Chlorobium chlorochromatii CaD3". ...
Fast energy transfer and exciton dynamics in chlorosomes of the green sulfur bacterium Chlorobium tepidum. J. Phys. Chem. A 102 ... Frigaard, N. U., Voigt, G. D. & Bryant, D. A. Chlorobium tepidum mutant lacking bacteriochlorophyll c made by inactivation of ... Broch-Due, M., Ormerod, J. G. & Fjerdingen, B. S. Effect of light intensity on vesicle formation in Chlorobium. Arch. Microbiol ... Exciton dynamics in the chlorosomal antennae of the green bacteria Chloroflexus aurantiacus and Chlorobium tepidum. Biophys. J ...
Graphical representation of Lipopolysaccharide biosynthesis (Chlorobium phaeobacteroides DSM 266) (PNG image hosted by the ... Model of "Lipopolysaccharide biosynthesis" in "Chlorobium phaeobacteroides DSM 266". ...
Photophosphorylation in vivo by Chlorobium limicola was inhibited by lipophilic cations and the energy-transfer inhibitors ... Photophosphorylation in vivo by Chlorobium limicola was inhibited by lipophilic cations and the energy-transfer inhibitors ... Energy Transduction in Chlorobium limicola: Role of Membrane-bound Adenosine Triphosphatase and the Proton Electrochemical ...
Chlorobium ferredoxin was the only iron-sulfur protein detected in the soluble fraction; no high-potential iron-sulfur protein ... A transcription unit for the Rieske FeS-protein and cytochrome b in Chlorobium limicola. (opens in new tab) ... A possible role for the latter iron-sulfur protein in the primary photochemical reaction in Chlorobium is considered. ... The iron-sulfur proteins of the green photosynthetic bacterium Chlorobium have been characterized by oxidation-reduction ...
The specific enzymes employed by Chlorobium tepidum for the anaerobic oxidation of thiosulfate, sulfide and elemental sulfur ... 1999; Chlorobium ferrooxidans sp. nov., a phototrophic green sulfur bacterium that oxidizes ferrous iron in coculture with a " ... 1991; A thermophilic green sulfur bacterium from New Zealand hot springs, Chlorobium tepidum sp. nov. Arch Microbiol156:81-90 ... 2007; Genetic and proteomic studies of sulfur oxidation in Chlorobium tepidum (syn. Chlorobaculum tepidum . In Sulfur in ...
Chlorobium tepidum, agglutinins, amino acid composition, amino acids, bacteria, cyanogen, gel chromatography, high performance ... Isolation and Characterization of an Outer Membrane Protein of Chlorobium tepidum. Author:. Aivaliotis, Michalis, Neofotistou, ... A protein was isolated from membranes of the green sulfur bacterium Chlorobium tepidum. This protein was characterized by gel ...
1991; Chlorobium tepidum Wahlund et al. 1996]. *Species C. thiosulfatiphilum Imhoff 2003 ["Chlorobium limicola f. sp. ... Genus Chlorobium Nadson 1906 emend. Imhoff 2003 *Species Chlorobium chlorovibrioides[notes 2](Gorlenko et al. 1974) Imhoff 2003 ... Chlorobium tepidum, a member of green sulfur bacteria was found to be mixotroph due to its ability to use inorganic and organic ... 2006 (epibiont of the phototrophic consortium Chlorochromatium aggregatum) ["Chlorobium chlorochromatii" Meschner 1957] ...
Carotenoids of some species of Chlorobium T. W. Goodwin, D. G. Land ...
  • Chlorobium tepidum is an anaerobic, thermophilic green sulfur bacteria first isolated from New Zealand. (wikipedia.org)
  • Chlorobium tepidum contains a genome that contains 2.15 Mbp. (wikipedia.org)
  • A thermophilic green sulfur bacterium from New Zealand hot springs, Chlorobium tepidum sp. (wikipedia.org)
  • C. tepidum is a member of the Chlorobium genera and are closely related, yet distinct from, the Bacteroides genera (2). (kenyon.edu)
  • It has been reported that a glycosylated form of BH 4 is present in some prokaryotes such as Sulfolobus solfataricus and Chlorobium tepidum , and abundantly in cyanobacteria including Synechococcus PCC7942, Nostoc sp. (iucr.org)
  • Chlorobium tepidum is a thermophilic, anaerobic phototrophic bacterium. (iucr.org)
  • Chlorobium tepidum utilization of nitrogen and sulphur compounds is also important in the global cycles of both nutrients. (sciencephoto.com)
  • The new phototrophs are described as a new species of the genus Chlorobium, Chlorobium tepidum . (springer.com)
  • Chlorobium tepidum and Pelodictyon phaeoclathratiforme are organisms within the green sulphur bacteria family, Chlorobiaceae, occupying very different habitats. (biomedcentral.com)
  • To investigate generic boundaries for the two species, protein families were predicted computationally based on sequence similarity across the genome-wide protein sets of Chlorobium tepidum TLS and Pelodictyon phaeoclathratiforme BU-1. (biomedcentral.com)
  • To analyse this relationship on a broader genomic scale, the current study examines protein family membership across the genome-wide protein sets of one strain from each of the original genera, Chlorobium tepidum TLS and Pelodictyon phaeoclathratiforme BU-1. (biomedcentral.com)
  • The reaction center complex from the green sulfur bacterium Chlorobium tepidum: a structural analysis by scanning transmission electron microscopy. (semanticscholar.org)
  • The three-dimensional (3D) structure of the reaction center (RC) complex isolated from the green sulfur bacterium Chlorobium tepidum was determined from projections of negatively stained preparations by angular reconstitution. (semanticscholar.org)
  • Membrane proteome of the green sulfur bacterium Chlorobium tepidum (syn. (semanticscholar.org)
  • A genomic region required for phototrophic thiosulfate oxidation in the green sulfur bacterium Chlorobium tepidum (syn. (microbiologyresearch.org)
  • The specific enzymes employed by Chlorobium tepidum for the anaerobic oxidation of thiosulfate, sulfide and elemental sulfur during anoxygenic photosynthesis are not well defined. (microbiologyresearch.org)
  • Genetic and proteomic studies of sulfur oxidation in Chlorobium tepidum (syn. (microbiologyresearch.org)
  • A protein was isolated from membranes of the green sulfur bacterium Chlorobium tepidum. (usda.gov)
  • Chlorobium tepidum , a member of green sulfur bacteria was found to be mixotroph due to its ability to use inorganic and organic carbon sources. (wikipedia.org)
  • 2003). "Characterization of Chlorobium tepidum chlorosomes: A calculation of bacteriochlorophyll c per chlorosome and oligomer modeling. (freepatentsonline.com)
  • The green sulfur bacterium Chlorobium tepidum is a strict anaerobe and an obligate photoautotroph. (montana.edu)
  • One organism, Chlorobium tepidum , has emerged as a model for this group of bacteria primarily due to its relative ease of cultivation and natural transformability. (montana.edu)
  • 2007 ). The green sulphur bacteria form the best studied group, and especially Chlorobaculum tepidum (also known as Chlorobium ) from the family of Chlorobiaceae , has emerged as a model organism for the group. (springer.com)
  • CC Chlorobium tepidum TLS, complete genome. (univ-lyon1.fr)
  • Here, we investigated biochemically and structurally the Roco protein from Chlorobium tepidum. (rug.nl)
  • Chlorobium tepidum (Ct) grouping with Rhodobacter capsulatus (R)). The placement of a support value vector to the inside of the dekapentagon depends on how the fifteen topologies are laid out along the vertices. (biomedcentral.com)
  • Rhodopirellula baltica and Methanosarcina acetivoran, and the third is from Chlorobium tepidum . (bioinformatics.org)
  • The organism, Chlorobium tepidum , has for years been a model species for researchers studying green-sulfur bacteria. (genomenewsnetwork.org)
  • An electron micrograph of the green sulfur bacterium Chlorobium tepidum . (genomenewsnetwork.org)
  • As a model species, Chlorobium tepidum has everything in one package,' says Jonathan A. Eisen, who led the sequencing project at The Institute for Genomic Research (TIGR) in Rockville, Maryland. (genomenewsnetwork.org)
  • Chlorobium tepidum TLS is the first member of the green-sulfur group to be fully sequenced, and an analysis of the genome appears in Proceedings of the National Academy of Sciences . (genomenewsnetwork.org)
  • This domain can also be found in small numbers of proteins in Chlorobium tepidum and Bacteroides thetaiotaomicron. (jcvi.org)
  • Investigations on the phototrophic sulfur bacterium Chlorobium phaeobacteroides causing seasonal blooms in Lake Kinneret. (springer.com)
  • Chlorobium chlorochromatii, originally known as Chlorobium aggregatum, is a symbiotic green sulfur bacteria that performs anoxygenic photosynthesis and functions as an obligate photoautotroph using reduced sulfur species as electron donors. (wikipedia.org)
  • Chlorobium chlorochromatii can be found in stratified freshwater lakes. (wikipedia.org)
  • Photosynthetic green sulfur bacteria such as Chlorobium chlorochromatii reside in freshwater, stratified lakes beneath the micro-aerophilic algal layer in anaerobic, light-exposed environments. (wikipedia.org)
  • Chlorobium chlorochromatii prefer environments with low temperature and low sulfur concentrations. (wikipedia.org)
  • Chlorobium chlorochromatii, strain CaD, was originally isolated from the phototrophic microbial consortium Chlorochromatium aggregatum. (wikipedia.org)
  • Chlorobium chlorochromatii CaD3, complete genome. (omabrowser.org)
  • Phylogenetic analyses demonstrated that these genes were distant relatives of the genus Fibrobacter and the green sulfur bacterial phylum, which includes the genus Chlorobium. (asm.org)
  • Thermophilic green sulfur bacteria of the genus Chlorobium were isolated from certain acidic high sulfide New Zealand hot springs. (springer.com)
  • Iron-sulfur centers in the photosynthetic reaction center complex from Chlorobium vibrioforme. (elsevier.com)
  • The photosynthetic reaction center complex from the green sulfur bacterium Chlorobium vibrioforme has been isolated under anaerobic conditions. (elsevier.com)
  • Fingerprint Dive into the research topics of 'Iron-sulfur centers in the photosynthetic reaction center complex from Chlorobium vibrioforme. (elsevier.com)
  • The iron-sulfur proteins of the green photosynthetic bacterium Chlorobium have been characterized by oxidation-reduction potentiometry in conjunction with low-temperature electron paramagnetic resonance spectroscopy. (meta.org)
  • A possible role for the latter iron-sulfur protein in the primary photochemical reaction in Chlorobium is considered. (meta.org)
  • The reductive tricarboxylic acid cycle functions as a carbon dioxide fixation pathway in the green sulfur bacterium, Chlorobium limicola. (elsevier.com)
  • The Basel chemists have now studied the green sulfur bacterium Chlorobium limicola , which also produces ergothioneine. (unibas.ch)
  • According to the NCBI Genome project website (2), Chlorobium ferrooxidans genome is 2.53896 Mbp in length, contains 2158 proteins and 47 RNAs. (kenyon.edu)
  • La única bacteria verde inmóvil, es Chloroflexus, crece en aguas termales en asociación con Cianobacterias termófilas, es fotoheterotrófico y aerobio facultativo. (prezi.com)
  • Prosthecochloris aestuarii es una bacteria verde del azufre que fue aislada por Vladimir Gorlenko en 1970. (prezi.com)
  • Primary production of the green hydro-sulfuric bacteria Chlorobium limicola Nads. (springer.com)
  • The Chlorobium-like partner in the coculture KoFox is genetically related to "Chlorobium", "Prosthecochloris", and "Pelodictyon", however no relationship was found to any strain for which rRNA sequence data currently are available (1). (kenyon.edu)
  • Overall 16S rRNA sequence similarity values of 91.4 - 96.7% indicate that the strain represents a separate line of descent within a Chlorobium/Pelodictyon/Prosthechloris cluster (see figure 2). (kenyon.edu)
  • It has recently been proposed that the genera Chlorobium and Pelodictyon are synonymous. (biomedcentral.com)
  • This bacterium is important due to the fact that it is a novel green phototroph, related to other species of Chlorobium yet unique in regards to the oxidation of ferrous iron to ferric iron. (kenyon.edu)
  • Chlorobium species grow in dense mats over hot springs and other sulphide-rich waters, mud, and sediments. (sciencephoto.com)
  • Detection of stratified microbial populations related to Chlorobium and Fibrobacter species in the Atlantic and Pacific oceans. (asm.org)
  • A gene lineage (SAR406) related to Chlorobium and Fibrobacter species was found in 16S rRNA gene clone libraries prepared from samples from two oceans. (asm.org)
  • The inclusion of SAR406 in phylogenetic trees inferred by several methods resulted in support from bootstrap replicates for the conclusion that Fibrobacter and Chlorobium species and SAR406 are a monophyletic group. (asm.org)
  • S] links to the list of genes which predicted the InterPro ID (Chlorobium species-wise prediction). (annotation.jp)
  • Giant genes are a peculiar feature of the genera Chlorobium and Prosthecochloris. (dtu.dk)
  • Castenholz RW, Bauld J, Jørgensen BB (1990) Anoxygenic microbial mats of hot springs: thermophilic Chlorobium sp . (springer.com)
  • Anoxygenic microbial mats of hot springs: thermophilic Chlorobium sp. (microbiologyresearch.org)
  • Chlorobium ferrooxidans is strictly anaerobic. (kenyon.edu)
  • Chlorobium - Taxon details on National Center for Biotechnology Information (NCBI). (wikimedia.org)
  • This strian (KoFox) differs from all Chlorobium strains in its lack of sulfide oxidation. (kenyon.edu)
  • Sulfide quinone reductase (SQR) activity in Chlorobium. (semanticscholar.org)
  • Photophosphorylation in vivo by Chlorobium limicola was inhibited by lipophilic cations and the energy-transfer inhibitors diphenylphosphorylazide, Dio-9, 4-chloro-7-nitrobenzofurazan and chlorhexidene. (microbiologyresearch.org)
  • Resumen en inglés The deformational mechanisms for basement-involved structures are analyzed in the southern sector of the Malargüe fold and thrust belt between 35° and 36°S. We constructed 15 balanced cross-section, of 75 km length that allow us to study the complex spatial interaction between deformation in the Late Triassic to Cenozoic sedimentary cover and the structural basement, composed mainly of Paleozoic metamorphic and igneous rocks. (worldwidescience.org)

No images available that match "chlorobium"