Chromatiaceae: A family of phototrophic purple sulfur bacteria that deposit globules of elemental sulfur inside their cells. They are found in diverse aquatic environments.Chromatium: 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.Rhodospirillaceae: A family of phototrophic bacteria, in the order Rhodospirillales, isolated from stagnant water and mud.Rhodospirillum: 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.Biography as Topic: 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)Encyclopedias as Topic: 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)BiographyBooks, Illustrated: 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)EncyclopediasHistory, 19th Century: Time period from 1801 through 1900 of the common era.Internet: 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.Sulfur: 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.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Water Pollutants, Chemical: Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water.Bacteria, AerobicButanesCalcium, Dietary: 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.Anterior Chamber: 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)Gammaproteobacteria: A group of the proteobacteria comprised of facultatively anaerobic and fermentative gram-negative bacteria.Mitochondrial Proton-Translocating ATPases: 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.Bacteriochlorophyll A: A specific bacteriochlorophyll that is similar in structure to chlorophyll a.Metatarsophalangeal Joint: The articulation between a metatarsal bone (METATARSAL BONES) and a phalanx.Bacterial Proton-Translocating ATPases: 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.Self Concept: A person's view of himself.Prince Edward Island: 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)Portraits as Topic: Graphic representations, especially of the face, of real persons, usually posed, living or dead. (From Thesaurus for Graphic Materials II, p540, 1995)American Civil War: 1861-1865 conflict between the Union (Northern states) and the 11 Southern states that seceded and were organized as the Confederate States of America.Body Image: Individuals' concept of their own bodies.RNA, Ribosomal, 16S: Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.Bradyrhizobiaceae: A proposed family of bacteria belonging to the alpha-2 subgroup of PROTEOBACTERIA.Bacteria: 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.Ammonia: 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.Nitrosomonas europaea: 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.Thiobacillus: 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.Carbon Dioxide: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.Archaea: One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.Gram-Negative Chemolithotrophic Bacteria: A large group of bacteria including those which oxidize ammonia or nitrite, metabolize sulfur and sulfur compounds, or deposit iron and/or manganese oxides.Polychaeta: A class of marine annelids including sandworms, tube worms, clamworms, and fire worms. It includes also the genus Myxicola infundibulum.Annelida: A phylum of metazoan invertebrates comprising the segmented worms, and including marine annelids (POLYCHAETA), freshwater annelids, earthworms (OLIGOCHAETA), and LEECHES. Only the leeches are of medical interest. (Dorland, 27th ed)Thermoanaerobacter: A genus of gram-positive, anaerobic bacteria in the family Thermoanaerobacteriaceae. Cultures consist of rods interspersed with coccoid cells.NevadaHot Springs: 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.DNA, Ribosomal: DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.Spiroplasma: 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.Acholeplasma: A genus of gram-negative organisms including saprophytic and parasitic or pathogenic species.Tenericutes: 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.Acholeplasma laidlawii: An organism originally isolated from sewage, manure, humus, and soil, but recently found as a parasite in mammals and birds.Spiroplasma citri: The type species of gram-negative bacteria in the genus SPIROPLASMA, family SPIROPLASMATACEAE, causing citrus stubborn disease.Cryoelectron Microscopy: 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.Gram-Negative Bacteria: Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method.Gram-Positive Bacteria: Bacteria which retain the crystal violet stain when treated by Gram's method.Click Chemistry: Organic chemistry methodology that mimics the modular nature of various biosynthetic processes. It uses highly reliable and selective reactions designed to "click" i.e., rapidly join small modular units together in high yield, without offensive byproducts. In combination with COMBINATORIAL CHEMISTRY TECHNIQUES, it is used for the synthesis of new compounds and combinatorial libraries.ThiomalatesBacteria, AnaerobicSexology: This discipline concerns the study of SEXUALITY, and the application of sexual knowledge such as sexual attitudes, psychology, and SEXUAL BEHAVIOR. Scope of application generally includes educational (SEX EDUCATION), clinical (SEX COUNSELING), and other settings.

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) ...
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.
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
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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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 ...
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 6q53.1. CRYSTAL STRUCTURE OF THE LIGHT-HARVESTING COMPLEX II (B800-850) FROM Ectothiorhodospira haloalkaliphila
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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: ...
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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 ...
From genomic libraries of purple sulphur bacteria, fragments were cloned that encoded for proteins involved in the synthesis of poly(3-hydroxyalkanoic acids), PHA. A 12.5- and a 15.0- plus a 15.6-kbp
Stefano Cataudella, incomparable working history and starting at a very young age, has dedicated his whole life and professional career to develop aquaculture in the Mediterranean basin and around the world. For his pioneering work and commitment he is recognised in many countries as an important agent of change that contributed to write the history of modern aquaculture. At the onset of marine aquaculture in the early 80s, he started cooperating with the Food and Agriculture Organization of the United Nations (FAO) and actively participated and coordinated missions to support aquaculture development in all the Mediterranean countries, always promoting principles of environmental, social and economic compatibility later on enshrined in the Code of Conduct for Responsible Fisheries (CCRF). In more than 40 years of work, he visited over 100 countries in Africa, Asia and Latin America in the frame of developing projects with particular reference to aquaculture and coastal lagoon management. His ...
Crowding - How Many Koi or Goldfish For the Pond or WaterGarden? Crowding formula stocking densities populating aquaculture ponds fish farming stocking ornamental ponds
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bacterial SgpA protein: genes sgpA, sgpB & sgpC encode three different proteins that constitute sulfur globule envelope in many bacteria; amino acid sequence in first source
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A study published in the December 2009 issue of BioScience says that as the worlds population continues to grow, lack of fresh water and space mean that terrestrial agriculture is unlikely to be able to meet food demand. According to Carlos M. Duarte of the University of the Balearic Islands, Spain, and his seven coauthors, freshwater aquaculture, which is largely confined to the tropics, is expanding, but its reliance on fresh water may limit long-term growth. Fisheries catches have been declining globally for two decades, and although conservation measures and a shift in consumption patterns could allow some recovery, marine aquaculture holds more potential for sustained growth ...
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General Information: Temp: Mesophile; Habitat: Marine. Nitrosococcus halophilus is an obligate chemolithotroph oxidizing ammonia to nitrite. It has been isolated from saline ponds. ...
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18 октября 1968 года в зале «Форум» Deep Purple открывали выступление группы Cream в рамках их прощального тура[1]. Лейбл Tetragrammaton, с которым в то время у Deep Purple был заключён контракт, принял решение заснять концерт на бытовую видеокамеру, чтобы впоследствии проанализировать насколько хорошо группа смотрится на сцене[2]. Видеозапись, качество которой оказалось очень плохим, в итоге не нашла применения[2]. Аудиозапись, долгое время циркулировавшая в виде бутлега[3], в 2002 году была ремастирована издана на компакт-диске компанией Purple Records, причём для этого издания ...
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Photoactive yellow protein (PYP) is a member of the xanthopsin family of eubacterial blue-light photoreceptors. On absorption of light, PYP enters a photocycle that ultimately transduces the energy contained in a light signal into an altered biological response. Nanosecond time-resolved x-ray crystallography was used to determine the structure of the short-lived, red-shifted, intermediate state denoted [pR], which develops within 1 nanosecond after photoelectronic excitation of the chromophore of PYP by absorption of light. The resulting structural model demonstrates that the [pR] state possesses the cis conformation of the 4-hydroxyl cinnamic thioester chromophore, and that the process of trans to cis isomerization is accompanied by the specific formation of new hydrogen bonds that replace those broken upon excitation of the chromophore. Regions of flexibility that compose the chromophore-binding pocket serve to lower the activation energy barrier between the dark state, denoted pG, and [pR], ...
1 Report of okenane as a hydrogenation product of okenone after H2/PtO2 treatment of a polar fraction extracted from a Recent lake sediment 2 Also including a large variety of di- to pentacyclic early diagenetic cyclization and rearrangement products of isorenieratene (Grice et al., 1996b, Koopmans et al., 1996a). 3 Only diagnostic for Chlorobiaceae if the carbon isotopic composition of individual arylisoprenoids shows an enrichment in 13C diagnostic of the reversed tricarboxylic acid cycle 4 According to Koopmans et al. (1996b), b-carotene can undergo aromatization during diagenesis to b-isorenieratane and further degradate to 2,3,6-TMAs 5 New trivial name suggested here (= perhydrorenierapurpurin) 6 New trivial name suggested here 7 TMA = trimethylarylisoprenoids. ...
Jan 31, 2017. A dependency on imported goods and low agricultural production translate into a high level of malnutrition and food insecurity in the Republic of the Marshall Islands. Due to limited land and fresh water availability, and the risk of overfishing, the local government has identified marine aquaculture as a main sector to support food security. With support from CTSA and other agencies, the government of Rongelap atoll has started a commercial aquaculture project to raise and harvest rabbitfish and moi, two popular fish throughout the region. This brief video highlights the progress of the project, which has now entered the commercialization phase.. ...
Nitritasi: oksidasi amonia menjadi nitrit oleh bakteri nitrit. Proses ini dilakukan oleh kelompok bakteri Nitrosomonas dan Nitrosococcus.[1] Reaksi nitritasi. • Nitratasi: oksidasi senyawa nitrit menjadi nitrat oleh bakteri nitrat. Proses ini dilakukan oleh kelompok bakteri Nitrobacter.[1] Reaksi nitratasi. Beberapa proses penting pada siklus nitrogen. Kandungan nitrogen pada purinadan pirimidina yang didapat dari asam amino glutamina. mineralisasi. sehingga istilah nukleotida esensial kurang tepat. artinya asam amino tersebut tidak dapat dihasilkan dari asupan nutrisi senyawa lain. . Oleh sebab itu. Walaupun terdapat sangat banyak molekul nitrogen di dalam atmosfer. denitrifikasi. yang telah punah dalam perjalanan evolusi makhluk vertebrata. reaksi fiksasi nitrogen sering disebut proses topping-up atau fungsi penambahan pada tersedianya cadangan senyawa nitrogen. sedikit sekali makhluk hidup yang dapat menyerap senyawa nitrogen yang terbentuk dari alam tersebut.[4] Dalam bidang pertanian. ...
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The FLAG is situated in the south of the Tuscany Region on the Mediterranean Sea (Mar Tirreno). This region has a long fisheries tradition, nevertheless, the fisheries communities population and fleet have been reduced by 50% over the last 30 years. The marine aquaculture in this area also has very ancient roots, dating back to the Etruscans and Romans. Todays aquaculture production in the FLAG territory accounts for more than 15% of the national total.. The main challenges the FLAG encounters is the involvement of the fisheries communities into innovative activities linked to the cultural heritage of the territory and the modernisation and sustainable development of aquaculture production.. ...
The Division of Coastal Sciences is a research and graduate education unit within the School of Ocean Science and Technology, offering programs leading to the Doctor of Philosophy and Master of Science degrees. The Division is located at Gulf Coast Research Laboratory (Ocean Springs, MS), a marine laboratory featuring comprehensive basic and applied research programs in coastal and marine biological sciences (http://gcrl.usm.edu). Research program support includes state-of-the-art laboratory facilities and instrumentation; a fleet of small and large research vessels, including the R/V Point Sur; the GCRL Museum collection; the Center for Fisheries Research and Development; NSF I/UCRC Science Center for Marine Fisheries, and aquaculture facilities including the Thad Cochran Marine Aquaculture Center. Additional information on graduate programs in the Division of Coastal Sciences can be found here: http://gcrl.usm.edu/coastal_sciences/index.php ...
Aquaculture ponds get polluted due to the excreta of the fish, shrimp and uneaten food. Fish and shrimp require oxygen. Electric powered aerators are expensive and prone to breakdowns. Fish feed is expensive.. Product is a simple and effective solution to keep the ponds clean and to maintain the dissolved oxygen level of the water.. Contains micronutrients required by Diatom Algae in nano size. 5 to 100 nano meters. It contains Si, Fe, Mn, Ca, Mg, Zn, Cu, B, S, Mo, etc.. How does it works? - causes a bloom of Diatom Algae. Diatom Algae are aquatic plants that absorb carbon dioxide and release oxygen during photosynthesis. Higher oxygen levels in water enable aerobic bacteria to grow and these breakdown organics in the water. Thus product and Diatoms are a substitute for electric powered Aerators used in Aqua farms.. ...
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This is the first structure of a HiPIP isolated from a nonphotosynthetic bacterium involved in an aerobic respiratory chain. The structure shows a similar environment around the cluster as the other HiPIPs from phototrophic bacteria, but reveals several features distinct from those of the other HiPIPs of phototrophic bacteria, such as a different fold of the N-terminal region of the polypeptide due to a disulfide bridge and a ten-residue-long insertion ...
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THE US Soybean Export Council (USSEC) has conducted workshops across South East Asia to boost marine aquaculture production in the region.. The workshops - held in Malaysia, Indonesia, Vietnam and Philippines - brought together representatives from government, industry associations, international buyers, certification programmes, and exporters to discuss and outline what the Asian aquaculture industry should do to target the international export market.. The region has a significant number of high quality fish processing facilities for land based aquaculture production and wild caught fisheries, but the marine fish aquaculture industry remains largely outdated and behind global trends towards larger scale, industrial marine fish cage farms that operate in offshore areas.. There is an expectation that improvements in production technology will lead to significant increases in the volumes of marine fish, but domestic and regional markets would have difficulty absorbing a rapid rise in ...
Donegal Sinn Féin County Councillor, Pádraig Mac Lochlainn has slammed the Irish Government over the Bonamia outbreak on Lough Foyle. Bonamia is a parasitic disease that permanently destroys the commercial potential of the natural oyster fisheries it infects. Lough Foyle oyster fishermen estimate up to 200 jobs will be permanently lost as a result of the outbreak. He said that the responsibility for the outbreak lies in the first instance with the Irish Governments Department of Communications, Marine and Natural Resources (DCMNR), for consistently failing to put in place legislation that would have extended powers to the Loughs Agency to provide for the regulation of sea fisheries within Lough Foyle and the licensing of marine aquaculture. Cllr Mac Lochlainn said: "This is an absolutely devastating blow to the fishing community in the area. Essentially this outbreak has permanently wiped out one of the finest natural oyster fisheries in Europe. The natural oyster beds on Lough Foyle are one ...
Aug 25, 2017. NOAA Fisheries has announced the 2018 Saltonstall-Kennedy (SK) Grant competition is open for applications. The goal of the SK program is to fund projects that address the needs of fishing communities, optimize economic benefits by building and maintaining sustainable fisheries, and increase other opportunities to keep working waterfronts viable. The FY18 solicitation seeks applications that fall into one of four priorities: 1) Marine Aquaculture, 2) Adapting to Environmental Changes and Other Long Term Impacts in Marine Ecosystem, 3) Promotion, Development, and Marketing, 4) Territorial Science. Pre-proposals are due via Grants.gov by 11:59 pm, Eastern Standard Time, October 10, 2017. Read more about the SK Grant Program and How to Apply.. NOAA is holding free one-day Effective Grant Writing training sessions and associated one-on-one grant review sessions (1.5 days total) at various locations across all the Hawaiian Islands, Guam, the Northern Mariana Islands (Saipan), and ...
We are developing "femtosecond time-resolved impulsive Raman spectroscopy" (femtosecond is 10-15 second), which enables tracking structural change of the reacting molecule through direct observation of the nuclear motion. Using this method, we successfully elucidated the first event occurring in a photoreceptor protein "Yellow Protein (PYP)" when it stimulates bacteria to escape from the harmful light under light irradiation. We first irradiated PYP with blue light and then shook PYP for observing the nuclear motion moment by moment, like taking "stroboscopic photograph". It was revealed that only 10 trillionths of a second (10-13 seconds) from the irradiation of blue light, specific hydrogen bonds near the light-absorbing site weakened, and then carbon - carbon double bond rotated, generating a peculiar distorted structure. This is a breakthrough achievement that tracks elaborate mechanisms where proteins start to function in real time.. ...
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These bacteria are photosynthetic; photolithotrophic bacteria are found in the purple bacteria (e. g., Chromatiaceae), green ...
... is a genus of bacteria in the family Chromatiaceae.[1] Allochromatium minutissimum Allochromatium phaeobacterium ...
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 ...
Chromatiaceae. Genera. Allochromatium. Amoebobacter. Chromatium. Halochromatium. Isochromatium. Lamprobacter. Lamprocystis. ...
The purple sulfur bacteria are divided into two families, the Chromatiaceae and the Ectothiorhodospiraceae, which produce ... Brocks, Jochen J.; Schaeffer, Philippe (2008-03-01). "Okenane, a biomarker for purple sulfur bacteria (Chromatiaceae), and ...
Due to the 2011 drought affecting Texas, the water had taken on a reddish hue, caused by bacteria of the Chromatiaceae, which ...
The bacteria belong to the family Chromatiaceae in the Gammaproteobacteria, and are close relatives of similar symbionts from ...
Examples: Cyanobacteria (water (H 2O) as reducing equivalent donor), Chlorobiaceae, Chromatiaceae (hydrogen sulfide (H 2S) as ...
... which could have contributed to the spread of the Chromatiaceae bacteria which thrive in stagnant, oxygen-deprived water. ...
... chromatiaceae MeSH B03.660.250.110.150 --- Chromatium MeSH B03.660.250.110.400 --- Halothiobacillus MeSH B03.660.250.110.750 ...
... 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 ... Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria [1] Chromatiaceae J.P. Euzéby: List of ...
Di photosythetische Bakterie (Chloroflexaceae, Chlorobiaceae, Chromatiaceae, Heliobacteria, Chloracidobacterium[13]) chenne ne ...
These organisms are photosynthetic; examples of photolithotrophic bacteria are purple bacteria (e. g., Chromatiaceae), green ...
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 ... Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria [1] Chromatiaceae J.P. Euzéby: List of ...
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 ...
Chromatiaceae (bacteria family). bacteria: Phototrophic metabolism: …and purple sulfur bacteria (Chromatiaceae) use elemental ...
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 ...
These bacteria are photosynthetic; photolithotrophic bacteria are found in the purple bacteria (e. g., Chromatiaceae), green ...
Bacteria; Proteobacteria; Gammaproteobacteria; Chromatiales; Chromatiaceae; Allochromatium. Industrial uses or economic ...
Chromatiaceae. - Granulosicoccaceae. - Ectothiorhodospiraceae. - Halothiobacillaceae. - Thioalkalispiraceae. - ...
Imhoff, J. F. (2006). "The chromatiaceae," in The Prokaryotes, eds M. Dworkin, S. Falkow, E. Rosenberg, K.-H. Schleifer, and E ... Imhoff, J. F. (2014). "The family chromatiaceae," in The Prokaryotes, eds E. Rosenberg, E. F. DeLong, S. Lory, E. Stackebrandt ... Other dominant 16S rRNA clones were mainly affiliated with the family Chromatiaceae and most closely related to Thiohalocapsa ... The majority of them could be assigned to uncultured Chromatiaceae and to aerobic anoxygenic phototrophic alpha- and ...
Allochromatium is a genus of bacteria in the family Chromatiaceae.[1] Allochromatium minutissimum Allochromatium phaeobacterium ...
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 ...
Based on fossil carotenoids, anoxygenic green (Chlorobiacea) and purple sulfur bacteria (Chromatiaceae) also contributed to ...
Chromatiaceae. Genera. Allochromatium. Amoebobacter. Chromatium. Halochromatium. Isochromatium. Lamprobacter. Lamprocystis. ...
Pfennig, N., and Trüper, H. G. (1981). "Isolation of members of the families chromatiaceae and chlorobiaceae," in The ... Additionally, the three most abundant sulfur oxidizers included, Thiovirga, Chlorobiaceae, and Chromatiaceae. Elevated relative ... as our study revealed enrichment of taxa belonging to Chlorobiaceae and Chromatiaceae (Figure 3B and Supplementary Figure S3B ...
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 ...
... 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 ...
  • A survey of microbial blooms found Chromatiaceae anywhere between 1.5m and 24m depth, but more than 75% occurred above 12 meters. (wikipedia.org)
  • THE OCCURRENCE OF PURPLE SULFUR BACTERIA IN ANAEROBIC LAGOONS-THEORY AND APPLICATION Paul N. McFarlane, Professor Biotechnology Department Massey University Palmerston North, New Zealand Henryk Melcer, Project Engineer Associated Water & Air Resources Engineers, Inc. Nashville, Tennessee 37204 INTRODUCTION The presence of Chromatiaceae, the purple sulphur bacteria, has been observed in lagoons treating a variety of effluents [ 1- (purdue.edu)
  • The famUy Chromatiaceae belongs to the order Rhodospirillales, the phototrophic bacteria . (purdue.edu)
  • The Chromatiaceae are, therefore, dependent upon the activities of the fermentative anaerobes and the sulphate-reducing bacteria, such as Desulfovibrio. (purdue.edu)
  • Blood Lake in San Angelo is remarkably red - and it turned that way due to Chromatiaceae bacteria, which thrives in oxygen-deprived water. (midlandtexas.com)
  • The color has some apocalypse believers suggesting that OC Fisher is an early sign of the end of the world, but Texas Parks and Wildlife Inland Fisheries officials say the bloody look is the result of Chromatiaceae bacteria, which thrive in oxygen-deprived water . (blogspot.com)