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, ovoid to rod-shaped bacteria that is phototrophic. All species use ammonia as a nitrogen source. Some strains are found only in sulfide-containing freshwater habitats exposed to light while others may occur in marine, estuarine, and freshwater environments.
A family of phototrophic bacteria, in the order Rhodospirillales, isolated from stagnant water and mud.
A genus of gram-negative, spiral bacteria that possesses internal photosynthetic membranes. Its organisms divide by binary fission, are motile by means of polar flagella, and are found in aquatic environments.
A written account of a person's life and the branch of literature concerned with the lives of people. (Harrod's Librarians' Glossary, 7th ed)
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Books containing photographs, prints, drawings, portraits, plates, diagrams, facsimiles, maps, tables, or other representations or systematic arrangement of data designed to elucidate or decorate its contents. (From The ALA Glossary of Library and Information Science, 1983, p114)
Time period from 1801 through 1900 of the common era.
A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.
A genus of gram-negative, rod-shaped, phototrophic bacteria found in aquatic environments. Internal photosynthetic membranes are present as lamellae underlying the cytoplasmic membrane.
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.
The general name for a group of fat-soluble pigments found in green, yellow, and leafy vegetables, and yellow fruits. They are aliphatic hydrocarbons consisting of a polyisoprene backbone.
A genus of GOLDEN-BROWN ALGAE in the family Ochromonadaceae, found mostly in freshwater. They bear two unequal FLAGELLA and are heterotrophic.
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.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water.
Calcium compounds used as food supplements or in food to supply the body with calcium. Dietary calcium is needed during growth for bone development and for maintenance of skeletal integrity later in life to prevent osteoporosis.
The space in the eye, filled with aqueous humor, bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and that part of the crystalline lens which presents through the pupil. (Cline et al., Dictionary of Visual Science, 4th ed, p109)
A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.
Proton-translocating ATPases responsible for ADENOSINE TRIPHOSPHATE synthesis in the MITOCHONDRIA. They derive energy from the respiratory chain-driven reactions that develop high concentrations of protons within the intermembranous space of the mitochondria.
A specific bacteriochlorophyll that is similar in structure to chlorophyll a.
The articulation between a metatarsal bone (METATARSAL BONES) and a phalanx.
Membrane-bound proton-translocating ATPases that serve two important physiological functions in bacteria. One function is to generate ADENOSINE TRIPHOSPHATE by utilizing the energy provided by an electrochemical gradient of protons across the cellular membrane. A second function is to counteract a loss of the transmembrane ion gradient by pumping protons at the expense of adenosine triphosphate hydrolysis.
An island in the Lesser Antilles, one of the Windward Islands. Its capital is Fort-de-France. It was discovered by Columbus in 1502 and from its settlement in 1635 by the French it passed into and out of Dutch and British hands. It was made a French overseas department in 1946. One account of the name tells of native women on the shore calling "Madinina" as Columbus approached the island. The meaning was never discovered but was entered on early charts as Martinique, influenced by the name of St. Martin. (From Webster's New Geographical Dictionary, 1988, p734 & Room, Brewer's Dictionary of Names, 1992, p339)
Widely scattered islands in the Atlantic Ocean as far north as the AZORES and as far south as the South Sandwich Islands, with the greatest concentration found in the CARIBBEAN REGION. They include Annobon Island, Ascension, Canary Islands, Falkland Islands, Fernando Po (also called Isla de Bioko and Bioko), Gough Island, Madeira, Sao Tome and Principe, Saint Helena, and Tristan da Cunha.
A condition in which closely related persons, usually in the same family, share the same delusions.
Heat- and storage-labile plasma glycoprotein which accelerates the conversion of prothrombin to thrombin in blood coagulation. Factor V accomplishes this by forming a complex with factor Xa, phospholipid, and calcium (prothrombinase complex). Deficiency of factor V leads to Owren's disease.
A plasma protein that is the inactive precursor of thrombin. It is converted to thrombin by a prothrombin activator complex consisting of factor Xa, factor V, phospholipid, and calcium ions. Deficiency of prothrombin leads to hypoprothrombinemia.
Cylindrical epithelial cells in the innermost layer of the ENAMEL ORGAN. Their functions include contribution to the development of the dentinoenamel junction by the deposition of a layer of the matrix, thus producing the foundation for the prisms (the structural units of the DENTAL ENAMEL), and production of the matrix for the enamel prisms and interprismatic substance. (From Jablonski's Dictionary of Dentistry, 1992)
A person's view of himself.
An island in the Gulf of St. Lawrence constituting a province of Canada in the eastern part of the country. It is very irregular in shape with many deep inlets. Its capital is Charlottetown. Discovered by the French in 1534 and originally named Ile Saint-Jean, it was renamed in 1799 in honor of Prince Edward, fourth son of George III and future father of Queen Victoria. (From Webster's New Geographical Dictionary, 1988, p981 & Room, Brewer's Dictionary of Names, 1992, p433)
Graphic representations, especially of the face, of real persons, usually posed, living or dead. (From Thesaurus for Graphic Materials II, p540, 1995)
1861-1865 conflict between the Union (Northern states) and the 11 Southern states that seceded and were organized as the Confederate States of America.
Individuals' concept of their own bodies.
Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
A genus of gram-positive, anaerobic bacteria in the family Thermoanaerobacteriaceae. Cultures consist of rods interspersed with coccoid cells.
The type species of the genus NITROSOMONAS, a gram-negative chemolithotroph that oxidizes ammonia to nitrite. It is found in soil, sewage, freshwater, and on building walls, and especially in polluted areas where air contains high levels of nitrogen compounds.
Habitat of hot water naturally heated by underlying geologic processes. Surface hot springs have been used for BALNEOLOGY. Underwater hot springs are called HYDROTHERMAL VENTS.
A colorless alkaline gas. It is formed in the body during decomposition of organic materials during a large number of metabolically important reactions. Note that the aqueous form of ammonia is referred to as AMMONIUM HYDROXIDE.
DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.
A genus of gram-negative, helical bacteria, in the family SPIROPLASMATACEAE, order Entomoplasmatales, causing disease in PLANTS. It has been isolated from TICKS; INSECTS; and PLANTS.
A genus of gram-negative organisms including saprophytic and parasitic or pathogenic species.
A phylum of gram-negative bacteria consisting of cells bounded by a plasma membrane. Its organisms differ from other bacteria in that they are devoid of cell walls. This phylum was formerly the class Mollicutes. Mollicutes is now the sole class in the phylum Tenericutes.
An organism originally isolated from sewage, manure, humus, and soil, but recently found as a parasite in mammals and birds.
The type species of gram-negative bacteria in the genus SPIROPLASMA, family SPIROPLASMATACEAE, causing citrus stubborn disease.
Electron microscopy involving rapid freezing of the samples. The imaging of frozen-hydrated molecules and organelles permits the best possible resolution closest to the living state, free of chemical fixatives or stains.

Structure and function of a cysBJIH gene cluster in the purple sulphur bacterium Thiocapsa roseopersicina. (1/114)

A gene cluster containing homologues of the genes cysB, cysJI and cysH was found in the genome of the sulphur-oxidizing purple bacterium Thiocapsa roseopersicina. The nucleotide sequence indicated four open reading frames encoding homologues of 3'-phosphoadenylylsulphate (PAPS) reductase (CysH), sulphite reductase flavoprotein (CysJ) and haem protein (CysI) subunits, and a transcriptional regulator (CysB). Genes cysJIH are separated by a short cis-active intergenic region from cysB which is transcribed divergently. cysB encodes a polypeptide of 35.9 kDa consisting of 323 amino acid residues with 40% identity to the CysB regulator from enterobacteria. cysH encodes a protein with 239 amino acid residues and a calculated mass of 27.7 kDa; cysJ encodes a protein with 522 amino acid residues and a mass of 57.8 kDa; and cysI encodes a protein with 559 amino acid residues and a mass of 62.3 kDa. The cysJIH gene products have been expressed and used for complementation of cys mutants from Escherichia coli Biochemical analysis. The gene product CysH is a thioredoxin-dependent PAPS reductase (EC 1.8.99.4). It was repressed under photoautotrophic growth using hydrogen sulphide as electron donor and derepressed under conditions of sulphate deficiency. Products of the cysJI genes were identified as the two subunits of NADPH-sulphite reductase (EC 1.8.1.2). cysJ encoded the flavoprotein, with > or = 39% identity to the protein from E. coli, and cysI encoded the haem protein, with > or = 53% identity. A cysI clone was used to complement the corresponding mutant from E. coli and to express enzymically active methylviologen-sulphite reductase.  (+info)

Optical characteristics of the phototroph Thiocapsa roseopersicina and implications for real-time monitoring of the bacteriochlorophyll concentration. (2/114)

Optical characteristics of a Thiocapsa roseopersicina culture and environmental samples containing T. roseopersicina were investigated in the spectral range of 400 to 1,100 nm (absorption coefficient, diffuse attenuation coefficient, and reflectance). Specific absorption coefficients of T. roseopersicina at wavelengths of 480, 520, 550, 580, 805, 860, and 880 nm were determined. It is suggested that the optical properties of T. roseopersicina in the near-infrared range of 800 to 930 nm, confirmed in this study, may be used for development of remote sensing techniques for real-time monitoring of T. roseopersicina and other bacteriochlorophyll a-containing microbes.  (+info)

Kinetics of and intermediates in a photocycle branching reaction of the photoactive yellow protein from Ectothiorhodospira halophila. (3/114)

We have studied the kinetics of the blue light-induced branching reaction in the photocycle of photoactive yellow protein (PYP) from Ectothiorhodospira halophila, by nanosecond time-resolved UV/Vis spectroscopy. As compared to the parallel dark recovery reaction of the presumed blue-shifted signaling state pB, the light-induced branching reaction showed a 1000-fold higher rate. In addition, a new intermediate was detected in this branching pathway, which, compared to pB, showed a larger extinction coefficient and a blue-shifted absorption maximum. This substantiates the conclusion that isomerization of the chromophore is the rate-controlling step in the thermal photocycle reactions of PYP and implies that absorption of a blue photon leads to cis-->trans isomerization of the 4-hydroxy-cinnamyl chromophore of PYP in its pB state.  (+info)

Crystal structures of photosynthetic reaction center and high-potential iron-sulfur protein from Thermochromatium tepidum: thermostability and electron transfer. (4/114)

The reaction center (RC) of photosynthetic bacteria is a membrane protein complex that promotes a light-induced charge separation during the primary process of photosynthesis. In the photosynthetic electron transfer chain, the soluble electron carrier proteins transport electrons to the RC and reduce the photo-oxidized special-pair of bacteriochlorophyll. The high-potential iron-sulfur protein (HiPIP) is known to serve as an electron donor to the RC in some species, where the c-type cytochrome subunit, the peripheral subunit of the RC, directly accepts electrons from the HiPIP. Here we report the crystal structures of the RC and the HiPIP from Thermochromatium (Tch.) tepidum, at 2.2-A and 1.5-A resolution, respectively. Tch. tepidum can grow at the highest temperature of all known purple bacteria, and the Tch. tepidum RC shows some degree of stability to high temperature. Comparison with the RCs of mesophiles, such as Blastochloris viridis, has shown that the Tch. tepidum RC possesses more Arg residues at the membrane surface, which might contribute to the stability of this membrane protein. The RC and the HiPIP both possess hydrophobic patches on their respective surfaces, and the HiPIP is expected to interact with the cytochrome subunit by hydrophobic interactions near the heme-1, the most distal heme to the special-pair.  (+info)

Thioalkalicoccus limnaeus gen. nov., sp. nov., a new alkaliphilic purple sulfur bacterium with bacteriochlorophyll b. (5/114)

Four strains of purple sulfur bacteria containing bacteriochlorophyll b were isolated from cyanobacterial mats of soda lakes in the steppe of south-east Siberia, Russia. Cells of all strains were cocci without gas vesicles. Eventually, cells with flagella were seen in the electron microscope, but motile cells were observed very rarely in cultures. Internal photosynthetic membranes were of the tubular type. Photosynthetic pigments were bacteriochlorophyll b and carotenoids with spectral characteristics similar to 3,4,3',4'-tetrahydrospirilloxanthin. The bacteria were obligately phototrophic and strictly anaerobic. Hydrogen sulfide and elemental sulfur were used as photosynthetic electron donors. Thiosulfate was not used. During growth on sulfide, sulfur globules were formed as intermediate oxidation products, deposited inside the cells and centrally located. In the presence of sulfide and sodium bicarbonate, acetate, malate, propionate, pyruvate, succinate, fumarate and yeast extract were photoassimilated. Growth factors were not required. The new bacterium is an obligate alkaliphile growing at pH 8-10 with an optimum at pH 9. It showed good growth up to 6.0% sodium chloride and up to 8.5% sodium carbonates. Phenotypically, it is similar to Thiococcus pfennigii, but different by virtue of its alkaliphily and salt tolerance. The DNA G+C content was 63.6-64.8 mol %, compared to 69.4-69.9 mol % for Thiococcus pfennigii. The 16S rDNA sequence of strain A26T was approximately 92% similar to that of Thiococcus pfennigii DSM 226 and therefore a new genus and species name, Thioalkalicoccus limnaeus gen. nov. and sp. nov., are proposed for the new bacterium.  (+info)

Thioflavicoccus mobilis gen. nov., sp. nov., a novel purple sulfur bacterium with bacteriochlorophyll b. (6/114)

A novel phototrophic purple sulfur bacterium was isolated from a flat, laminated microbial mat in a salt marsh near Woods Hole, Massachusetts, USA. The cells were monotrichously flagellated motile cocci with internal photosynthetic membranes of the tubular type. The main photosynthetic pigments were bacteriochlorophyll b and the carotenoid 3,4,3',4'-tetrahydrospirilloxanthin. The marine bacterium showed optimal growth in the presence of 2% salts. It was obligately phototrophic and strictly anaerobic. It grew photoautotrophically and photoassimilated acetate, pyruvate and ascorbate as the only organic substrates. In the presence of sulfide, elemental sulfur globules were formed inside the cells. Elemental sulfur was further oxidized to sulfate. The DNA base composition of the new bacterium was 66.5 mol% G+C. The 16S rDNA nucleotide sequence was most similar to strains of Thiococcus pfennigii, there being approximately 92-93% sequence similarity. The new bacterium is described as a new species and a new genus, and the name Thioflavicoccus mobilis is proposed; the type strain is 8321T (= ATCC 700959T).  (+info)

Structure of the H subunit of the photosynthetic reaction center from the thermophilic purple sulfur bacterium, Thermochromatium tepidum Implications for the specific binding of the lipid molecule to the membrane protein complex. (7/114)

The photosynthetic reaction center (RC) is a transmembrane protein complex that catalyzes light-driven electron transport across the photosynthetic membrane. The complete amino-acid sequence of the H subunit of the RC from a thermophilic purple sulfur bacterium, Thermochromatium tepidum, has been determined for the first time among purple sulfur bacteria. The H subunit consists of 259 amino acids and has a molecular mass of 28 187. The deduced amino-acid sequences of this H subunit showed a significant (40%) degree of identity with those from mesophilic purple nonsulfur bacteria. The determined primary structure of the H subunit was compared with the structures of mesophilic B. viridis and R. sphaeroides based on the three-dimensional structure of the H subunit from T. tepidum, which has been recently determined by X-ray crystallography. One lipid molecule was found in the crystal structure of the T. tepidum RC, and the head group of the lipid appears to be stabilized by the electrostatic interactions with the conserved basic residues in the H subunit. The above comparison has suggested the existence of a lipid-binding site on the molecular surface at which a lipid molecule can interact with the RC in a specific manner.  (+info)

Transfer of Pfennigia purpurea tindall 1999 (Amoebobacter purpureus Eichler and Pfennig 1988) to the genus Lamprocystis as Lamprocystis purpurea comb. nov. (8/114)

On the basis of its close phylogenetic relationship to Lamprocystis roseopersicina, the phototrophic purple sulfur bacterium originally described as Amoebobacter purpureus and recently transferred to Pfennigia purpurea is reclassified as Lamprocystis purpurea comb. nov. In addition, an emended description of the genus Lamprocystis is given.  (+info)

Looking for Amoebobacter? Find out information about Amoebobacter. A genus of bacteria in the family Chromatiaceae; cells are spherical and nonmotile, have gas vacuoles, and contain bacteriochlorophyll a on vesicular... Explanation of Amoebobacter
1EYS: Crystal structures of photosynthetic reaction center and high-potential iron-sulfur protein from Thermochromatium tepidum: thermostability and electron transfer.
ID G2E4Q3_9GAMM Unreviewed; 601 AA. AC G2E4Q3; DT 16-NOV-2011, integrated into UniProtKB/TrEMBL. DT 16-NOV-2011, sequence version 1. DT 25-OCT-2017, entry version 24. DE RecName: Full=V-type ATP synthase subunit I {ECO:0000256,RuleBase:RU361189}; GN ORFNames=ThidrDRAFT_3266 {ECO:0000313,EMBL:EGV29529.1}; OS Thiorhodococcus drewsii AZ1. OC Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; OC Chromatiaceae; Thiorhodococcus. OX NCBI_TaxID=765913 {ECO:0000313,EMBL:EGV29529.1, ECO:0000313,Proteomes:UP000004200}; RN [1] {ECO:0000313,EMBL:EGV29529.1, ECO:0000313,Proteomes:UP000004200} RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=AZ1 {ECO:0000313,EMBL:EGV29529.1, RC ECO:0000313,Proteomes:UP000004200}; RG US DOE Joint Genome Institute (JGI-PGF); RA Lucas S., Han J., Lapidus A., Cheng J.-F., Goodwin L., Pitluck S., RA Peters L., Land M.L., Hauser L., Vogl K., Liu Z., Imhoff J., Thiel V., RA Frigaard N.-U., Bryant D.A., Woyke T.J.; RT The draft genome of Thiorhodococcus drewsii ...
Lineage: cellular organisms; Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales; Oxalobacteraceae; Herbaspirillum; Herbaspirillum ...
Half of Americas seafood comes from aquaculture-the cultivation of fish and other marine life for food consumption-and that share is expected to grow. The federal government has proposed a fivefold increase in U.S. aquaculture productive, but policy makers need to take steps to ensure that the growth is carried out in an environmentally responsible way.. In its report, Sustainable Marine Aquaculture: Fulfilling the Promise, Managing the Risks, the task force recommended a suite of protective standards to ensure that aquaculture development poses a minimal threat to the ocean environment. The task force advocated evaluation of environmental risks prior to granting permits for marine aquaculture, and the inclusion of permit conditions to eliminate or minimize those risks. The panel urged that only native species of the local wild genotype be used in marine aquaculture unless the risk from doing so can be shown to be negligible. The task force also recommended enhanced research and development and ...
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) ...
TY - JOUR. T1 - Engineering of a calcium-ion binding site into the RC-LH1-PufX complex of Rhodobacter sphaeroides to enable ion-dependent spectral red-shifting. AU - Swainsbury, David J.K.. AU - Martin, Elizabeth C.. AU - Vasilev, Cvetelin. AU - Parkes-Loach, Pamela S.. AU - Loach, Paul A.. AU - Neil Hunter, C.. PY - 2017/11. Y1 - 2017/11. N2 - The reaction centre-light harvesting 1 (RC-LH1) complex of Thermochromatium (Tch.) tepidum has a unique calcium-ion binding site that enhances thermal stability and red-shifts the absorption of LH1 from 880 nm to 915 nm in the presence of calcium-ions. The LH1 antenna of mesophilic species of phototrophic bacteria such as Rhodobacter (Rba.) sphaeroides does not possess such properties. We have engineered calcium-ion binding into the LH1 antenna of Rba. sphaeroides by progressively modifying the native LH1 polypeptides with sequences from Tch. tepidum. We show that acquisition of the C-terminal domains from LH1 α and β of Tch. tepidum is sufficient to ...
Gold Coast Marine Aquaculture - The History. Gold Coast Marine Aquaculture (GCMA), producers of Gold Coast Tiger Prawns, was founded in 1986 by Noel Herbst on a cane farm at the mouth of the Logan River. The Herbst family arrived in Australia in 1863 on the ship the Baucite from which Noels great grandparents disembarked to settle on the Gold Coast. There the family remained for the next 148 years as farmers with Noel continuing on the family profession working the land farming cattle and cane.. Noel, being a visionary, soon recognised the potential for aquaculture and, with the help of his late wife Elizabeth, started a small prawn farm, turning some of their cane paddocks adjacent to the Logan River into prawn ponds.. Over the following twenty-five years, Noel and his family learnt the hard way that prawn farming is not a simple process and certainly not risk free. By being hands on, persevering, innovating, employing the right people and reinvesting every dollar earned, what began as a small ...
Mussels, kelp and trout grown off the coast of Portsmouth, N.H. are fulfilling demand for local seafood while removing excess nutrients from the water. This new video from NOAA Fisheries focuses on marine aquaculture and features N.H. fishermen, chefs, UNH professor Hunt Howell and NHSG/UNHCE marine aquaculture specialist Michael Chambers.
TY - JOUR. T1 - Interactions between respiration and denitrification during growth of Thiosphaera pantotropha in continuous culture. AU - Thomsen, Jens Kirk. AU - Lansmann Iversen, J. J.. AU - Cox, Raymond P.. PY - 1993/7/1. Y1 - 1993/7/1. N2 - The effects of oxygen on the use of nitrate as an electron acceptor by the denitrifying bacterium Thiosphaera pantotropha were investigated during growth on acetate. In batch cultures under aerobic conditions nitrate was not utilised and the growth rate constant was 0.55 h-1. The corresponding value for growth on nitrate under anoxic conditions was 0.37 h-1. In acetate-limited continuous cultures with feedback control of the dissolved oxygen concentration, nitrate utilisation was totally inhibited by the lowest concentration of oxygen tested (22 μM). Carbon conversion efficiencies with acetate increased from 0.28 with nitrate to 0.44 with oxygen. The rates of nitrification calculated from nitrogen balance studies were not greater than 1.5% of the rate of ...
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 ...
Marine aquaculture - also called mariculture - refers to the farming of animals and plants in seawater including oysters, mussels, finfish, abalone and seaweed
A reddish-brown bacterium was isolated from photoheterotrophic enrichments of mangrove soil from the western coast of India, in a medium that contained 10 % (w/v) NaCl. Phylogenetic analysis on the basis of 16S rRNA gene sequences showed that strain JA100T clusters with species of the genus Marichromatium of the class Gammaproteobacteria. Cells of strain JA100T are Gram-negative, motile rods with monopolar single flagella; they require NaCl, the optimum concentration being 1-4 %, and tolerate concentrations up to 13 %. The strain has vesicular internal membrane structures, bacteriochlorophyll a and, most probably, carotenoids of the spirilloxanthin series. No growth factors are required. A reduced sulfur source is required for growth, and, during growth on reduced sulfur sources as electron donors, sulfur is intermediately deposited as a single large granule within the cell. Strain JA100T could not grow at the expense of other tricarboxylic acid cycle intermediates, except malate. On the basis of 16S
Dear EarthTalk: What are the pros and cons of marine aquaculture, of raising ocean fish instead of catching them in the wild?. -Jeanne L., Norwalk, CT. Marine aquaculture, an age-old practice in parts of Asia, has grown in popularity in western countries in recent years in response to dwindling supplies of wild fish in the worlds oceans. According to the Pew Oceans Commission, a blue-ribbon panel of fisheries and marine biology experts, high-tech fishing practices, such as drift netting, have led to a potentially irreversible decline in populations of key seafood species. Some shark, tuna and cod species have declined as much as 90 percent in the past few decades.. Most marine biologists agree that, as human population continues to grow worldwide, there will not be enough wild-captured fish to meet demands for seafood. Aquaculture, the propagation and rearing of aquatic organisms in controlled or selected environments, as defined by the U.S. National Oceanic and Atmospheric Administration ...
NANO TUBE® is used during high water temperatures, during lice treatment, in emergency situations, in pre-slaughter cages, during harvest, transport and for general prevention of fish stress/oxygen deficiency
eXtension is an interactive learning environment delivering research-based information emerging from Americas land-grant university system.
As we can observed, the areas are more distinct than the previous time we saw the column As noted, at the bottom we can still notice a dark area due to anaerobic microorganisms and at the top we can also notice a green area due to aerobic microorganisms.The black coloured area at the bottom of the column is due to the presence of iron sulfide which degrades organic matter thus we can notice that black colour . In addition, a small pick coloured area can be observed in the middle region of the column and that is due to a substance produced by purple sulfur bacteria which are responsible for that pink colour. ...
Hello and welcome to the second edition of the NOAA Aquaculture Program newsletter. We certainly received a lot of supportive feedback on the initial issue last month. Something readers pointed out was that - although they were familiar with U.S. aquaculture - they were not very familiar with NOAAs program. Well, wed like to change that. To find out more about our program, go to our website. NOAA, along with many other agencies, was front and center in San Diego last month at the Aquaculture 2010 conference. Over 3,000 people representing researchers, growers, resource agencies, businesses, and academia participated. One group that attracted lots of positive attention was the University of Miamis Rosenstiel School of Marine and Atmospheric Sciences aquaculture team. Along with their professor, Dr. Daniel Benetti, this team of rising stars highlighted the type of positive energy that will be the driver for marine aquaculture in the U.S. and abroad. Dan and his students are currently ...
Information about marine aquaculture in Australia. Deals with species involved, environmental impacts, case studies, econcmic impact
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|p|Lincontrollato impatto delle attività umane sta provocando cambiamenti profondi e forse irreversibili negli oceani di tutto il mondo.|/p|
Among the phototrophic purple sulfur bacteria, these were initially distinguished because they deposit elemental sulfur globules outside the cells, unlike the nEndothiorhodaceae that deposit elemental sulfur inside their cells. Subsequently the extrmely halophilic species were segregated from Ectothiorhodospira and assigned to Halorhodospira. Most species are rods, most often slightly bent rods, vibrios or spirilla that during oxidation of sulfide produce elemental sulfur which is deposited outside the cells; one species, Ectothiorhodospira vacuolata, produces gas vesicles. All of the phototrophic Ectothiorhodospiraceae produce characteristic internal membrane stacks that may constitute a large fraction of the internal volume of these cells ...
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 ...
Publisher: Frontiers Media S.A.. Date Issued: 4/14/16. Abstract: An ammonia-oxidizing bacterium, strain D1FHS, was enriched into pure culture from a sediment sample retrieved in Jiaozhou Bay, a hyper-eutrophic semi-closed water body hosting the metropolitan area of Qingdao, China. Based on initial 16S rRNA gene sequence analysis, strain D1FHS was classified in the genus Nitrosococcus, family Chromatiaceae, order Chromatiales, class Gammaproteobacteria; the 16S rRNA gene sequence with highest level of identity to that of D1FHS was obtained from Nitrosococcus halophilus Nc4T. The average nucleotide identity between the genomes of strain D1FHS and N. halophilus strain Nc4 is 89.5%. Known species in the genus Nitrosococcus are obligate aerobic chemolithotrophic ammonia-oxidizing bacteria adapted to and restricted to marine environments. The optimum growth (maximum nitrite production) conditions for D1FHS in a minimal salts medium are: 50 mM ammonium and 700 mM NaCl at pH of 7.5 to 8.0 and at 37 ...
Crystallographic and spectroscopic analyses of three hinge-bending mutants of the photoactive yellow protein are described. Previous studies have identified Gly(47) and Gly(51) as possible hinge points in the structure of the protein, allowing backbone segments around the chromophore to undergo large concerted motions. We have designed, crystallized, and solved the structures of three mutants: G47S, G51S, and G47S/G51S. The protein dynamics of these mutants are significantly affected. Transitions in the photocycle, measured with laser induced transient absorption spectroscopy, show rates up to 6-fold different from the wild type protein and show an additive effect in the double mutant. Compared with the native structure, no significant conformational differences were observed in the structures of the mutant proteins. We conclude that the structural and dynamic integrity of the region around these mutations is of crucial importance to the photocycle and suggest that the hinge-bending properties ...
We use polarization-sensitive ultrafast infrared spectroscopy to derive excited state lifetimes, quantum yields and structural information on the chromophore of photoactive yellow protein and model co
Femtosecond time resolved pump-probe protein X-ray crystallography requires highly accurate measurements of the photoinduced structure factor amplitude differences. In the case of femtosecond photolysis of single P63 crystals of the Photoactive Yellow Protein, it is shown that photochemical dynamics place a Emerging Photon Technologies for Chemical Dynamics
Three-dimensional structure of AprB from A. fulgidus (A, B) and selected, homology modeling-based AprB models from Allochromatium vinosum (C, D), Pelagibacter u
Caldanaerovirga acetigignens gen. nov., sp. nov., an anaerobic xylanolytic, alkalithermophilic bacterium isolated from Trego Hot Spring, Nevada, USA.. PubMed. Wagner, Isaac D; Ahmed, Sibtain; Zhao, Weidong; Zhang, Chuanlun L; Romanek, Christopher S; Rohde, Manfred; Wiegel, Juergen. 2009-11-01. An anaerobic thermophilic bacterium, designated strain JW/SA-NV4(T), was isolated from a xylan-supplemented enrichment culture from Trego hot spring located within the Black Rock Desert (NV, USA). Cells were generally straight or slightly bent rod-shaped, 0.4-0.8 microm in width and 3-6 microm in length during exponential growth. Cells from stationary phase were variable in size and shape, showing curved or bent morphology. Motility was not seen and flagella were not observed in electron micrographs. Sporulation was not observed. Strain JW/SA-NV4(T) stained Gram-negative but is phylogenetically Gram-type positive. Growth occurred at pH(25 degrees C) 6.8-8.8, with optimum growth at pH 8.4; no growth ...
2D02: The Crystal Structure of the R52Q Mutant Demonstrates a Role for R52 in Chromophore pK(a) Regulation in Photoactive Yellow Protein
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Marine aquaculture is the raising marine organisms either in enclosed cages and nets in the ocean or in man-made tanks on land. The most common species produced in U.S. aquaculture operations are mainly oysters, clams, mussels, shrimp, and salmon. There is also production of cod, moi, yellowtail, barramundi, seabass, and seabream, but these are in much smaller quantities. The potential for aquaculture to provide protein sources to the rapidly increasing global population is very high, and research into this technology has been heavily invested in around the world. (Source: NOAA Fisheries - Office of Aquaculture). There are some issues with aquaculture, however, and marine aquaculture in particular. When fish are raised in a protected and controlled environment, they become adapted to an artificial environment and lack much of the selection pressures that would normally influence genetic traits in wild populations. This often means that fish produced in hatcheries have a lower fitness when ...
To understand how the protein and chromophore components of a light-sensing protein interact to create a light cycle, we performed time-resolved spectroscopy on site-directed mutants of photoactive yellow protein (PYP). Recently determined crystallographic structures of PYP in the ground and colorless I2 states allowed us to design mutants and to study their photosensing properties at the atomic level. We developed a system for rapid mutagenesis and heterologous bacterial expression for PYP apoprotein and generated holoprotein through formation of a covalent thioester linkage with the p-hydroxycinnamic acid chromophore as found in the native protein. Glu46, replaced by Gln, is buried in the active site and hydrogen bonds to the chromophores phenolate oxygen in the ground state. The Glu46Gln mutation shifted the ground state absorption maximum from 446 to 462 nm, indicating that the color of PYP can be fine-tuned by the alteration of hydrogen bonds. Arg52, which separates the active site from ...
SWISS-MODEL Template Library (SMTL) entry for 1s1y.1. Photoactivated chromophore conformation in Photoactive Yellow Protein (E46Q mutant) from 10 microseconds to 3 milliseconds
SWISS-MODEL Template Library (SMTL) entry for 6q53.1. CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM Ectothiorhodospira haloalkaliphila
Vitran Eames DSR -tuolia kutsutaan myös Eiffel-tuoliksi, sillä sen sirot metallijalat muodostavat graafisen, ristikkäisen rakenteen. Lyhenne DSR tulee sanoista Dining Height Side Chair Rod Base.
I appreciate their work on my project. Every request was responded to quickly, and they customized exactly as we needed it. Were already thinking up new customizations and will definitely be back.. ...
List of 48 causes of Movement symptoms and Oral pain and Face symptoms, alternative diagnoses, rare causes, misdiagnoses, patient stories, and much more.
The vast floodplains of southern Bangladesh have been transformed over centuries into a patchwork of rice fields and aquaculture ponds. To increase the food production from this challenging landscape, farmers have developed a unique agricultural system called a gher. A pond is dug into the rice field, and the excavated mud is piled up around the banks to create both a footpath to navigate the expansive grid and cultivable land for growing vegetables.
1. Permaculture Gardening: Permaculture is where you design an entire edible habitat based on the natural capital of your setting. Then, place plants to methodically balance the soil, water, and pests. For instance, a nitrogen fixing plant may be planted next to a nitrogen hungry plant, which may sit next to an ornamental that deters predators, and so on. Permaculture gardening re-creates nature by using a large variety of plants while incorporating as many different animals as feasible like chickens, goats, ducks, and bees. You may also see features like vertical gardening and aquaculture ponds in permaculture designs depending on the space available. Utilizing this method is not expensive, but requires a lot of know-how and trial and error. Permaculture gardening can produce massive abundance. See the amazing video below for a real-world example of going off-the-grid in suburbia: ...
started this thread to hear some thoughts on our latest offerings of systems out there, the thread is a good basis for many platforms now being offere
Deadline for submissions: 2.1.2018. The Pacific States Marine Fisheries Commission (PSMFC), in cooperation and funding from the NOAA Fisheries Office of Aquaculture, will be issuing approximately $450,000 in grants to fund marine aquaculture pilot projects focusing on sustainable aquatic farming techniques and regional business practices to grow U.S. domestic seafood. The geographic scope of the proposed projects is for the U.S. West Coast states of Alaska, California, Oregon and Washington, as well as Hawaii and U. S. Pacific Islands. The primary location of the proposed projects must be in the marine waters/estuarine environment. Posted: 12.1.2017. Aquaculture Pilot Projects Q&A. Download the full Request for Proposals (RFP) by clicking the Download RFP button below. Download RFP Dec. 1, 2017 Deadline for written questions: 1.5.2018 ...
Modifies, by uridylylation and deuridylylation, the PII regulatory proteins (GlnB and homologs), in response to the nitrogen status of the cell that GlnD senses through the glutamine level. Under low glutamine levels, catalyzes the conversion of the PII proteins and UTP to PII-UMP and PPi, while under higher glutamine levels, GlnD hydrolyzes PII-UMP to PII and UMP (deuridylylation). Thus, controls uridylylation state and activity of the PII proteins, and plays an important role in the regulation of nitrogen assimilation and metabolism.
The resulting probiotic treatment is primarily geared towards hatchery use. It dissolves rapidly in salt water (as quickly as 25 seconds), is stable and effective, and is relatively inexpensive. This is good news for hatcheries, not just in the state, but also throughout the country. Disease mitigation is essential to the sustainability of the aquaculture industry. Oysters were a $136 million market in 2012 with yields of 35 million pounds, according to a U.S. Marine Aquaculture study. While captured seafood remains at a consistent level, aquaculture production is on the rise. Disease, however, can spread rapidly, wiping out an entire hatchery.. Disease mitigation is essential to the sustainability of the aquaculture industry. Oysters were a $136 million market in 2012 with yields of 35 million pounds, according to a U.S. Marine Aquaculture study. While captured seafood remains at a consistent level, aquaculture production is on the rise. Disease, however, can spread rapidly, wiping out an ...
As part of its commitment to developing a sustainable marine aquaculture industry, the State Government is establishing aquaculture development zones for marine finfish.. An aquaculture development zone is a designated area of water selected for its suitability for a specific aquaculture sector (in this case, marine finfish). Two zones are being established: one in the Kimberley, which has now been declared; and one in the States Mid West. The aim is to make it faster, less costly and more efficient to set up aquaculture businesses.. The zones will provide opportunities for existing aquaculture operations (fish farms) to expand and new ones to be established, providing economic benefits to the local community through job creation and regional economic diversification.. Aquaculture zones provide investment ready platforms with strategic environmental approvals and management policies already in place, allowing commercial aquaculture operations to be set up without the need for lengthy, complex ...
Unlike all other forms of marine aquaculture, commercially grown bivalve shellfish have been identified as the only sustainable form of aquaculture that has...
Biology and culture of Penaeid shrimp developed in the framework of the cooperation the Master of Science in Marine Aquaculture, Ecuador (CENAIM ...
Three methods Ive used with success are to: 1) design your primers with restriction sites. Make sure to add 4-6 extra bases so that restriction sites are not at the very end of the amplified product. This makes the cloning routine. 2) Ive made my own T-ended cloning vector using a protocol in the Red Book (Current Protocols in Molecular Biology). Basically, use any vector (one with color selection is a good choice) cut with a restriciton enzyme that leave a blunt cut (like EcoRV) and incubate with Taq Polymerase in the presense of dTTP only. This adds a T compatible with the A so often introduced on your PCR product. 3) Blunt the PCR product ends with something like T4 DNA polymerase and clone the resulting blunted product into a blunt-cut vector. Again, color selection can be helpful here. Hope this is helpful. Mike ,Im a PhD student working in microbial ecology. For quite some months Ive ,been trying to clone the dissimilatory sulfite reductase (dsr) gene from ,environmental samples. As ...
De Spreeksel Reeksen (DSR) is a series of readings initiated by Extrapool (Nijmegen), in cooperation with yourspace (Eindhoven) and DE PLAYER. The readings are dynamic, playful, imaginary, theatrical, intelligent of course and informative, but also discursive and preferably based on a personal (scientific/cultural) investigation.DSR #3 - WIM VERHOEVENPersoonlijkheid, Utopie
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Of the purple sulfur bacteria, many members of the Chromatiaceae family are often found in fresh water and marine environments ... Experiments with Chromatiaceae have pointed out that cell aggregates consisting of sulfate-reducing Proteobacterium ... About 10 species of Chromatiaceae are halophilic. Like green sulfur bacteria, purple sulfur bacteria are also capable of ... Chromatiaceae have been found in chemocline environments over 20 m depths. The correlation between anoxygenic photosynthesis ...
These organisms are photosynthetic; examples of photolithotrophic bacteria are purple bacteria (e. g., Chromatiaceae), green ...
... is a Gram-negative and thermophilic genus of bacteria from the family of Chromatiaceae with one known species ... nov., a Thermophilic Photosynthetic Bacterium of the Family Chromatiaceae". International Journal of Systematic Bacteriology. ...
... is a genus of bacteria in the family Chromatiaceae.[1] Allochromatium humboldtianum Allochromatium minutissimum ...
T. syntrophicum" belongs to the family Chromatiaceae and class Gammaproteobacteria. This species is known to be related to the ...
... is a genus of bacteria from the family of Chromatiaceae. Parker, Charles Thomas; Garrity, George M (4 November ... Sisinthy, S; Chakraborty, D; Adicherla, H; Gundlapally, SR (September 2017). "Emended description of the family Chromatiaceae, ...
... is a genus of bacteria from the family of Chromatiaceae. Rheinheimera is named after the German microbiologist ...
... is a genus of bacteria from the family of Chromatiaceae. "Thiophaeococcus". LPSN. "Thiophaeococcus". www. ...
If Chromatiaceae gained the ability to create okenone more recently that the Paleoproterozoic, then the okenane does not track ... A survey of microbial blooms found Chromatiaceae anywhere between 1.5m and 24m depth, but more than 75% occurred above 12 ... Okenane, the diagenetic end product of okenone, is a biomarker for Chromatiaceae, the purple sulfur bacteria. These anoxygenic ... The biomass of the purple sulfur bacteria, Chromatiaceae is often depleted in δ13C compared to typical oxygenic phototrophs ...
... is a phototrophic genus of bacteria from the family of Chromatiaceae. Imhoffiella is named after the German ... nov., a marine phototrophic member of the family Chromatiaceae including the description of Imhoffiella purpurea sp. nov. and ...
... is a Gram-negative genus of bacteria from the family of Chromatiaceae. "Thiorhodococcus". LPSN. " ...
... is a Gram-positive and motile genus of bacteria from the family of Chromatiaceae. Halochromatium bacteria occur ...
... is a Gram-negative and non-motile genus of bacteria from the family of Chromatiaceae. "Thiohalocapsa". LPSN. ...
... is a genus of bacteria from the family of Chromatiaceae with one known species (Phaeochromatium fluminis). " ...
Some species from the family Chromatiaceae are notable because might be involved in the production of vitamin B12. Another ...
nov., a marine phototrophic member of the family Chromatiaceae including the description of Imhoffiella purpurea sp. nov. and ...
The purple sulfur bacteria are largely divided into two families, the Chromatiaceae and the Ectothiorhodospiraceae, which ... Brocks, Jochen J.; Schaeffer, Philippe (2008-03-01). "Okenane, a biomarker for purple sulfur bacteria (Chromatiaceae), and ...
... is a phototrophic and motile genus of bacteria from the family of Chromatiaceae with one known species (Thiobaca ...
"Phylogenetic relationships among the Chromatiaceae, their taxonomic reclassification and description of the new genera ...
IMHOFF, J. F.; SULING, J.; PETRI, R. (1 October 1998). "Phylogenetic relationships among the Chromatiaceae, their taxonomic ... obligately phototrophic and strictly anaerobic genus of bacteria from the family of Chromatiaceae with one known species ( ...
AnSOB include some purple sulfur bacteria (Chromatiaceae) such as Allochromatium, and green sulfur bacteria (Chlorobiaceae), as ... Imhoff JF, Suling J, Petri R (1 October 1998). "Phylogenetic relationships among the Chromatiaceae, their taxonomic ... Imhoff JF, Süling J, Petri R (October 1998). "Phylogenetic relationships among the Chromatiaceae, their taxonomic ...
... is a Gram-positive, anaerobic and motile genus of bacteria from the family of Chromatiaceae with one known ...
... is a Gram-negative, mesophilic and obligate alkaliphilic genus of bacteria from the family of Chromatiaceae ...
... is a Gram-negative, rod-shaped and motile genus of bacteria from the family of Chromatiaceae with one known ...
... is a Gram-negative, rod-shaped, phototrophic and motile genus of bacteria from the family of Chromatiaceae with ...
... strictly anaerobic and motile genus of bacteria from the family of Chromatiaceae with one known species (Thioflavicoccus ...
... obligately phototrophic and strictly anaerobic genus of bacteria from the family of Chromatiaceae with one known species ( ...
Due to the 2011 drought affecting Texas, the water had taken on a reddish hue, caused by bacteria of the Chromatiaceae, which ...
Sisinthy, S; Chakraborty, D; Adicherla, H; Gundlapally, SR (September 2017). "Emended description of the family Chromatiaceae, ...
The bacteria belong to the family Chromatiaceae in the Gammaproteobacteria, and are close relatives of similar symbionts from ...
Chromatiaceae bacteria have been the cause for some low-oxygen lakes turning "blood red", such as O.C. Fisher Reservoir in San ... The Chromatiaceae are the main family of purple sulfur bacteria. Many members conduct an anoxygenic photosynthesis. They are ...
Chromatiaceae," in Bergeys Manual of Determinative Bacteriology, 8th Edn, eds R. E. Buchanan and N. E. Ribbons (Baltimore, MD ... nov., and emended description of the Chromatiaceae Bavendamm 1924. Int. J. Syst. Bacteriol. 34, 338-339. doi: 10.1099/00207713- ... Chromatiales/Ectothiorhodospiraceae and Chromatiaceae. With the exception of those species which have bacteriochlorophyll b as ... Smaller phylogenetic distances but a robust formation of clusters also is characteristic for the Chromatiaceae. A cluster of ...
papers/on-the-ecology-of-marine-chromatiaceae-and/9896. ... On the ecology of marine chromatiaceae and chlorobiaceae ( ... The results show that the sediments studied did not provide good growth conditions for Chromatiaceae (Chromatium, Thiocystis, ... Polar lipids in phototrophic bacteria of the Rhodospirillaceae and Chromatiaceae families. (opens in new tab) ...
Chromatiaceae (bacteria family). bacteria: Phototrophic metabolism: …and purple sulfur bacteria (Chromatiaceae) use elemental ...
Of the purple sulfur bacteria, many members of the Chromatiaceae family are often found in fresh water and marine environments ... Experiments with Chromatiaceae have pointed out that cell aggregates consisting of sulfate-reducing Proteobacterium ... About 10 species of Chromatiaceae are halophilic. Like green sulfur bacteria, purple sulfur bacteria are also capable of ... Chromatiaceae have been found in chemocline environments over 20 m depths. The correlation between anoxygenic photosynthesis ...
OC Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; OC Chromatiaceae; Nitrosococcus. OX NCBI_TaxID=472759; RN [0] ...
OC Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; OC Chromatiaceae; Nitrosococcus. OX NCBI_TaxID=323261; RN [0] ...
Chromatiaceae, pp. 1-2, Mar. 26, 2004. Website Printout, Source: http://www.sciencenet.com.au/frames/profiles/negative/families ...
Pfennig, N., and Trüper, H. G. (1992). "The family Chromatiaceae." in The Prokaryotes, eds A. Balows, H. G. Trüper, M. Dworkin ...
No its not real blood but Chromatiaceae bacteria, which thrive in oxygen-deprived water. a result of this damn high heat and ... That is very red and does look little like blood but apparently just the soil and Chromatiaceae bacteria, which thrive in ...
OC Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; OC Chromatiaceae; Thiorhodococcus. OX NCBI_TaxID=765913 {ECO: ...
Family Chromatiaceae [I] *Genus Amoebobacter [VIII]. *Genus Chromatium [I]. *Genus Lamprobacter [V] ...
Chromatiaceae / genetics * Environmental Microbiology * Gammaproteobacteria / classification * Gammaproteobacteria / enzymology ...
Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; Chromatiaceae; Allochromatium. Industrial uses or economic ...
Chromatiaceae. - Granulosicoccaceae. - Ectothiorhodospiraceae. - Halothiobacillaceae. - Thioalkalispiraceae. - ...
Based on fossil carotenoids, anoxygenic green (Chlorobiacea) and purple sulfur bacteria (Chromatiaceae) also contributed to ...
Chromatiaceae. Genera. Allochromatium. Amoebobacter. Chromatium. Halochromatium. Isochromatium. Lamprobacter. Lamprocystis. ...
The family Chromatiaceae, p. 3200-3221. In A. Balows, H. G. Trüper, M. Dworkin, W. Harder, and K. H. Schleifer (ed.), The ...
These represented the α-proteobacterium Labrenzia and the γ-proteobacteria Marinobacter and Chromatiaceae. Based on the ...
Okenane, a biomarker for purple sulfur bacteria (Chromatiaceae), and other new carotenoid derivatives from the 1,640 Ma Barney ...
nov., a thermophilic photosynthetic bacterium of the family Chromatiaceae. Int J Syst Bacteriol 36:222-227CrossRefGoogle ...
The green bacteria (Chlorobiaceae) and purple sulfur bacteria (Chromatiaceae) use elemental sulfur, sulfide, thiosulfate, or ...
Chromatiaceae have evolved an unusual homolog that prefers both a modified substrate (glutathione amide disulfide [GASSAG]) and ... Chromatiaceae have evolved an unusual homolog that prefers both a modified substrate (glutathione amide disulfide [GASSAG]) and ...
... family Chromatiaceae, order Chromatiales, class Gammaproteobacteria; the 16S rRNA gene sequence with highest level of identity ...
Chromatiaceae is closely related to Ectothiorhodospiraceae but is distinguished by its lack of lamellar intracytoplasmic ... Domain: Bacteria Phylum: Proteobacteria Class: Gammaproteobacteria Order: Chromatiales Family: Chromatiaceae Genus: Chromatium ...
... including the genera Chromatiaceae, Thiobacillus, and Halothiobacillus, dominate the Red sample. These chemoautotrophic ...
Toward a phylogeny of phototrophic purple sulfur bacteria-16S rRNA oligonucleotide cataloguing of 11 species of Chromatiaceae. ... the Chlorobiaceae cannot yet be considered as a family of genetically related genera comparable to the Chromatiaceae (Fowler et ...
Phylogenetic relationships among the Chromatiaceae, their taxonomic reclassification and description of the new genera ...
Allochromatium vinosum DSM 180 and Thioflavicoccus mobilis 8320, belonging to the Chromatiaceae were used as outgroup and are ... Comparison of intergenic spacer size in the Ectothiorhodospiraceae available genomes. Two genomes from Chromatiaceae are ... belonging to Chromatiaceae were used as outgroups and are shown in red. Metabolic characteristics are indicated next to the ... two purple sulfur marine bacteria which belong to the family Chromatiaceae, were used as outgroup. The family ...
Strain AZ1 is much more versatile than most other Chromatiaceae with respect to electron donor and organic substrates. In the ... Comparative sequence analysis of the 16S rRNA gene confirmed that the isolate is a member of the family Chromatiaceae. Sequence ... low genetic similarity and since strain AZ1 physiologically differs considerably from all other members of the Chromatiaceae, ...
  • The Chromatiaceae are the main family of purple sulfur bacteria. (wikipedia.org)
  • Chromatiaceae bacteria have been the cause for some low-oxygen lakes turning "blood red", such as O.C. Fisher Reservoir in San Angelo, Texas, USA. (wikipedia.org)
  • No it's not real blood but Chromatiaceae bacteria, which thrive in oxygen-deprived water. (abovetopsecret.com)
  • That is very red and does look little like blood but apparently just the soil and Chromatiaceae bacteria, which thrive in oxygen-deprived water. (abovetopsecret.com)
  • In gamma-1 subgroup there are the purple photosynthetic bacteria that produce molecular sulfur (Chromatiaceae group and Ectothiorhodospiraceae group) and also the non-photosyntetic species (as Nitrosococcus oceani). (wikipedia.org)
  • Based on fossil carotenoids, anoxygenic green (Chlorobiacea) and purple sulfur bacteria (Chromatiaceae) also contributed to photosynthate. (pnas.org)
  • Okenane, a biomarker for purple sulfur bacteria (Chromatiaceae), and other new carotenoid derivatives from the 1,640 Ma Barney Creek formation. (springer.com)
  • A bacteria called Chromatiaceae has turned the 1-to-2 acres of O.C. Fisher Lake water remaining the. (picsearch.com)
  • These and others, like the purple sulfur bacteria (Chromatiaceae), are autotrophic , but there are some, like the purple nonsulfur bacteria (Rhodospirillaceae), that are heterotrophic . (rationalwiki.org)
  • Urease formation in purple sulfur bacteria ( Chromatiaceae ) grown on various nitrogen sources. (microbiologyresearch.org)
  • The purple sulfur bacteria, belonging to the family Chromatiaceae are known to oxidize reduced sulfur compounds in the presence of light and under anaerobic conditions. (purdue.edu)
  • Indeed, assemblages dominated by purple sulphur bacteria (Chromatiaceae) were efficient exopolymer producers and their biostabilisation potential was significant. (st-andrews.ac.uk)
  • Texas Parks and Wildlife Inland Fisheries officials blame the water color on the proliferation of Chromatiaceae bacteria, which thrive in oxygen-deprived water. (jcink.com)
  • Six of the sequences were related to different cultivated members of the green sulfur bacteria assemblage, whereas seven fell into the cluster of marine or halophilic Chromatiaceae. (prozac2020.site)
  • Purple bacteria can be divided into two main types - the Chromatiaceae, which produce sulfur particles inside their cells, and the Ectothiorhodospiraceae, which produce sulphur particles outside their cells. (carboso.com)
  • Species of the genus Ectothiorhodospira are differentiated from other purple sulfur bacteria of the Chromatiaceae family by the deposition of elemental sulfur outside their cells, when grown with sulfide as the photosynthetic electron donor. (aspeneducationgroup.com)
  • Chromatiaceae is closely related to Ectothiorhodospiraceae but is distinguished by its lack of lamellar intracytoplasmic membrane structures. (kenyon.edu)
  • Together with the genera Nevskia, Hydrocarboniphaga, Solimonas and Sinobacter (less than 88% 16S rRNA gene sequence similarity to strain FS(T)), it forms a phylogenetic cluster separated from the families Chromatiaceae, Ectothiorhodospiraceae and Xanthomonadaceae. (nbrp.jp)
  • The core complex B880 (B1020) of species from Ectothiorhodospiraceae and Chromatiaceae apparently consists of four (alpha 1 alpha 2 beta 1 beta 2) or three (2 alpha beta 1 beta 2) chemically dissimilar antenna polypeptides respectively. (speedlibbradary0.cf)
  • The results show that the sediments studied did not provide good growth conditions for Chromatiaceae (Chromatium, Thiocystis, Thiocapsa) and Chlorobiaceae (Prosthecochloris). (meta.org)
  • 1990). Thus, the Chlorobiaceae cannot yet be considered as a family of genetically related genera comparable to the Chromatiaceae (Fowler et al. (springer.com)
  • ABSTRACT: An underwater spectroradiometer was used to analyse the spectral distribution of light in 41 lakes containing all of the main pigmentary groups of planktonic phototrophic microorganisms: eukaryotic phytoplankton, cyanobacteria, Chromatiaceae and the different pigmented groups of Chlorobiaceae. (int-res.com)
  • Chromatiaceae Chlorobiaceae? (mit.edu)
  • nov., and emended description of the Chromatiaceae Bavendamm 1924. (bacterio.net)
  • IMHOFF (J.F.), SÜLING (J.) and PETRI (R.): Phylogenetic relationships among the Chromatiaceae , their taxonomic reclassification and description of the new genera Allochromatium , Halochromatium , Isochromatium , Marichromatium , Thiococcus , Thiohalocapsa and Thermochromatium . (bacterio.net)
  • This study was undertaken to confirm the reliability of the proposed potential bioindicators, Alcaligenaceae and Chromatiaceae to specifically indicate contamination in river water by palm oil mill effluent (POME) final discharge. (usda.gov)
  • A denitrifying bacterium, designated strain FS(T), was isolated from anoxic digested sludge on oestradiol [17beta-oestra-1,3,5(10)-triene-3,17-diol] or testosterone (17beta-hydroxyandrost-4-en-3-one) as the sole source of carbon and energy with nitrate as the electron acceptor. (nbrp.jp)
  • The reasons for this proposal are discussed briefly, and a description of the new family and an emended description of the Chromatiaceae are given. (microbiologyresearch.org)