Bacteriochlorophylls: Pyrrole containing pigments found in photosynthetic bacteria.Rhodobacter sphaeroides: Spherical phototrophic bacteria found in mud and stagnant water exposed to light.Pheophytins: Chlorophylls from which the magnesium has been removed by treatment with weak acid.Chloroflexus: A genus of green nonsulfur bacteria in the family Chloroflexaceae. They are photosynthetic, thermophilic, filamentous gliding bacteria found in hot springs.Photosynthetic Reaction Center Complex Proteins: Protein complexes that take part in the process of PHOTOSYNTHESIS. They are located within the THYLAKOID MEMBRANES of plant CHLOROPLASTS and a variety of structures in more primitive organisms. There are two major complexes involved in the photosynthetic process called PHOTOSYSTEM I and PHOTOSYSTEM II.Light-Harvesting Protein Complexes: Complexes containing CHLOROPHYLL and other photosensitive molecules. They serve to capture energy in the form of PHOTONS and are generally found as components of the PHOTOSYSTEM I PROTEIN COMPLEX or the PHOTOSYSTEM II PROTEIN COMPLEX.Chlorobi: A phylum of anoxygenic, phototrophic bacteria including the family Chlorobiaceae. They occur in aquatic sediments, sulfur springs, and hot springs and utilize reduced sulfur compounds instead of oxygen.Bacterial Chromatophores: Organelles of phototrophic bacteria which contain photosynthetic pigments and which are formed from an invagination of the cytoplasmic membrane.Chlorophyll: Porphyrin derivatives containing magnesium that act to convert light energy in photosynthetic organisms.Photosynthesis: The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide using energy obtained from light rather than from the oxidation of chemical compounds. Photosynthesis comprises two separate processes: the light reactions and the dark reactions. In higher plants; GREEN ALGAE; and CYANOBACTERIA; NADPH and ATP formed by the light reactions drive the dark reactions which result in the fixation of carbon dioxide. (from Oxford Dictionary of Biochemistry and Molecular Biology, 2001)Spectrophotometry: The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.Photochemotherapy: Therapy using oral or topical photosensitizing agents with subsequent exposure to light.Photosensitizing Agents: Drugs that are pharmacologically inactive but when exposed to ultraviolet radiation or sunlight are converted to their active metabolite to produce a beneficial reaction affecting the diseased tissue. These compounds can be administered topically or systemically and have been used therapeutically to treat psoriasis and various types of neoplasms.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Dihematoporphyrin Ether: The purified component of HEMATOPORPHYRIN DERIVATIVE, it consists of a mixture of oligomeric porphyrins. It is used in photodynamic therapy (HEMATOPORPHYRIN PHOTORADIATION); to treat malignant lesions with visible light and experimentally as an antiviral agent. It is the first drug to be approved in the use of PHOTODYNAMIC THERAPY in the United States.Porphyrins: A group of compounds containing the porphin structure, four pyrrole rings connected by methine bridges in a cyclic configuration to which a variety of side chains are attached. The nature of the side chain is indicated by a prefix, as uroporphyrin, hematoporphyrin, etc. The porphyrins, in combination with iron, form the heme component in biologically significant compounds such as hemoglobin and myoglobin.Aminolevulinic Acid: A compound produced from succinyl-CoA and GLYCINE as an intermediate in heme synthesis. It is used as a PHOTOCHEMOTHERAPY for actinic KERATOSIS.Hematoporphyrin Photoradiation: Photochemotherapy using visible light, usually red, topically or delivered locally by fiberoptic probe to tissues sensitized with hematoporphyrins.PhytolPubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.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.Rhodopseudomonas: A genus of gram-negative, rod-shaped, phototrophic bacteria found in aquatic environments. Internal photosynthetic membranes are present as lamellae underlying the cytoplasmic membrane.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.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.Organosilicon Compounds: Organic compounds that contain silicon as an integral part of the molecule.Spectrum Analysis, Raman: Analysis of the intensity of Raman scattering of monochromatic light as a function of frequency of the scattered light.Energy Transfer: The transfer of energy of a given form among different scales of motion. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed). It includes the transfer of kinetic energy and the transfer of chemical energy. The transfer of chemical energy from one molecule to another depends on proximity of molecules so it is often used as in techniques to measure distance such as the use of FORSTER RESONANCE ENERGY TRANSFER.Macrocyclic Compounds: Cyclic compounds with a ring size of approximately 1-4 dozen atoms.Chlorobium: A genus of phototrophic, obligately anaerobic bacteria in the family Chlorobiaceae. They are found in hydrogen sulfide-containing mud and water environments.Ecosystem: A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)Carbon Cycle: The cycle by which the element carbon is exchanged between organic matter and the earth's physical environment.Bacteriochlorophyll A: A specific bacteriochlorophyll that is similar in structure to chlorophyll a.Leptospira interrogans serovar pomona: A serovar of the bacterial species LEPTOSPIRA INTERROGANS, whose primary hosts include CATTLE and SWINE.Seawater: The salinated water of OCEANS AND SEAS that provides habitat for marine organisms.Native Polyacrylamide Gel Electrophoresis: Polyacrylamide gel electrophoresis under conditions in which the components, such as PROTEINS, being separated can remain in their naturally folded state.WyomingHot 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.Wolves: Any of several large carnivorous mammals of the family CANIDAE that usually hunt in packs.Sulfolobales: An order of CRENARCHAEOTA consisting of aerobic or facultatively aerobic, chemolithotrophic cocci which are extreme thermoacidophiles. They lack peptidoglycan in their cell walls.Archaeal Viruses: Viruses whose hosts are in the domain ARCHAEA.Bison: A genus of the family Bovidae having two species: B. bison and B. bonasus. This concept is differentiated from BUFFALOES, which refers to Bubalus arnee and Syncerus caffer.MontanaBook Reviews as Topic: Critical analyses of books or other monographic works.Book ReviewsAccess to Information: Individual's rights to obtain and use information collected or generated by others.Journal Impact Factor: A quantitative measure of the frequency on average with which articles in a journal have been cited in a given period of time.Peer Review, Research: The evaluation by experts of the quality and pertinence of research or research proposals of other experts in the same field. Peer review is used by editors in deciding which submissions warrant publication, by granting agencies to determine which proposals should be funded, and by academic institutions in tenure decisions.Publishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.RNA, Ribosomal, 16S: Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.DNA, Ribosomal: DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.Fatty Acids: Organic, monobasic acids derived from hydrocarbons by the equivalent of oxidation of a methyl group to an alcohol, aldehyde, and then acid. Fatty acids are saturated and unsaturated (FATTY ACIDS, UNSATURATED). (Grant & Hackh's Chemical Dictionary, 5th ed)Base Composition: The relative amounts of the PURINES and PYRIMIDINES in a nucleic acid.Phylogeny: The relationships of groups of organisms as reflected by their genetic makeup.Genes, rRNA: Genes, found in both prokaryotes and eukaryotes, which are transcribed to produce the RNA which is incorporated into RIBOSOMES. Prokaryotic rRNA genes are usually found in OPERONS dispersed throughout the GENOME, whereas eukaryotic rRNA genes are clustered, multicistronic transcriptional units.

Roseovarius tolerans gen. nov., sp. nov., a budding bacterium with variable bacteriochlorophyll a production from hypersaline Ekho Lake. (1/358)

Eight Gram-negative, aerobic, pointed and budding bacteria were isolated from various depths of the hypersaline, heliothermal and meromictic Ekho Lake (Vestfold Hills, East Antarctica). The cells contained storage granules and daughter cells could be motile. Bacteriochlorophyll a was sometimes produced, but production was repressed by constant dim light. The strains tolerated a wide range of temperature, pH, concentrations of artificial seawater and NaCl, but had an absolute requirement for sodium ions. Glutamate was metabolized with and without an additional source of combined nitrogen. The dominant fatty acid was C18:1; other characteristic fatty acids were C18:2, C12:0 2-OH, C12:1 3-OH, C16:1, C16:0 and C18:0. The main polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol and phosphatidylcholine. The DNA G+C base composition was 62-64 mol%. 16S rRNA gene sequence comparisons showed that the isolates were phylogenetically close to the genera Antarctobacter, 'Marinosulfonomonas', Octadecabacter, Sagittula, Sulfitobacter and Roseobacter. Morphological, physiological and genotypic differences to these previously described and distinct genera support the description of a new genus and a new species, Roseovarius tolerans gen. nov., sp. nov. The type strain is EL-172T (= DSM 11457T).  (+info)

Rubrimonas cliftonensis gen. nov., sp. nov., an aerobic bacteriochlorophyll-containing bacterium isolated from a saline lake. (2/358)

Phenotypic and phylogenetic studies were performed with two strains (OCh 317T and OCh 318; T = type strain) of aerobic chemoheterotrophic bacteriochlorophyll-containing bacteria isolated from water of a saline lake located on the west coast of Australia. Both strains were Gram-negative, short rods and were motile by means of polar flagella. Catalase, oxidase, nitrate reductase, phosphatase and urease were produced. The cells utilized D-glucose, citrate, glycolate, pyruvate and ethanol. Acids were produced from L-arabinose, D-fructose, D-galactose, D-glucose, D-ribose and D-xylose. The strains could grow in media containing 0.5-7.5% NaCl. Bacteriochlorophyll a was synthesized under aerobic conditions. The results of 16S rRNA gene sequence comparisons revealed that strain OCh 317T represented a new lineage in the alpha-3 group of the class Proteobacteria. Strains OCh 317T and OCh 318 were identified as strains of the same species because of their very similar phenotypic characteristics and their previously described high DNA-DNA homology. Therefore, it was concluded that the two strains should be assigned to a new genus and species, for which the name Rubrimonas cliftonensis is proposed. The type strain is OCh 317T (= JCM 10189T).  (+info)

Multiple pathways for ultrafast transduction of light energy in the photosynthetic reaction center of Rhodobacter sphaeroides. (3/358)

A pathway of electron transfer is described that operates in the wild-type reaction center (RC) of the photosynthetic bacterium Rhodobacter sphaeroides. The pathway does not involve the excited state of the special pair dimer of bacteriochlorophylls (P*), but instead is driven by the excited state of the monomeric bacteriochlorophyll (BA*) present in the active branch of pigments along which electron transfer occurs. Pump-probe experiments were performed at 77 K on membrane-bound RCs by using different excitation wavelengths, to investigate the formation of the charge separated state P+HA-. In experiments in which P or BA was selectively excited at 880 nm or 796 nm, respectively, the formation of P+HA- was associated with similar time constants of 1.5 ps and 1. 7 ps. However, the spectral changes associated with the two time constants are very different. Global analysis of the transient spectra shows that a mixture of P+BA- and P* is formed in parallel from BA* on a subpicosecond time scale. In contrast, excitation of the inactive branch monomeric bacteriochlorophyll (BB) and the high exciton component of P (P+) resulted in electron transfer only after relaxation to P*. The multiple pathways for primary electron transfer in the bacterial RC are discussed with regard to the mechanism of charge separation in the RC of photosystem II from higher plants.  (+info)

Kinetics of photoacclimation in cultures of Chromatium vinosum DSM 185 during shifts in light irradiance. (4/358)

Continuous cultures of Chromatium vinosum DSM 185 were shifted from a high to a low irradiance (67 to 4 microE m(-2) s(-1)) and vice versa (4 to 67 microE m(-2) s(-1)). The kinetics of photoacclimation of the cultures were analysed during these transitions until steady state was reached. When irradiance was shifted from 4 to 67 microE m(-2) s(-1), bacteriochlorophyll synthesis halted for 4 h. During this period, pigments were progressively diluted in the newly formed biomass, resulting in a lower specific pigment content. The specific growth rate of the organisms did not change immediately after the shift, but rather underwent a gradual increase during the following 10 h. This transition was accompanied by a transient increase in the levels of glycogen, indicating that CO2 fixation rates increased immediately after the shift, and that unused photosynthate was stored as glycogen. The shift from a high to a low irradiance was characterized by an immediate drop in the specific growth rate to virtually zero, and by comparatively sharp decreases in the specific rates of sulfur and sulfide oxidation and in the specific rate of glycogen accumulation. The specific content of bacteriochlorophyll a increased during the first 10 h. During the same period the specific content of glycogen decreased.  (+info)

Roseateles depolymerans gen. nov., sp. nov., a new bacteriochlorophyll a-containing obligate aerobe belonging to the beta-subclass of the Proteobacteria. (5/358)

Strains 61AT (T = type strain) and 61B2, the first bacteriochlorophyll (BChl) a-containing obligate aerobes to be classified in the beta-subclass of the Proteobacteria, were isolated from river water. The strains were originally isolated as degraders of poly(hexamethylene carbonate) (PHC). The organisms can utilize PHC and some other biodegradable plastics. The strains grow only under aerobic conditions. Good production of BChl a and caroterioid pigments is achieved on PHC agar plates and an equivalent production is observed under oligotrophic conditions on agar medium. Spectrometric results suggest that BChl a is present in light-harvesting complex I and the photochemical reaction centre. The main carotenoids are spirilloxanthin and its precursors. Analysis of the 16S rRNA gene sequence indicated that the phylogenetic positions of the two strains are similar to each other and that their closest relatives are the genera Rubrivivax, ideonella and Leptothrix with similarities of 96.3, 96.2 and 96.1%, respectively. The cells are motile, straight rods and contain poly-beta-hydroxybutyrate granules. Ubiquinone-8 is the predominant quinone. Vitamins are not required for growth. The G + C content of genomic DNA is 66.2-66.3 mol%. Genetic and phenotypic features suggest that the strains represent a new genus in the beta-subclass which is evenly distant from known genera. Consequently, the name Roseateles depolymerans gen. nov., sp. nov. is proposed for the strains; the type strain of Roseateles depolymerans is strain 61AT (= DSM 11813T).  (+info)

Roseivivax halodurans gen. nov., sp. nov. and Roseivivax halotolerans sp. nov., aerobic bacteriochlorophyll-containing bacteria isolated from a saline lake. (6/358)

Phenotypic and phylogenetic studies were performed with two strains (OCh 239T and OCh 210T, T = type strain) of aerobic bacteriochlorophyll-containing bacteria isolated from the charophytes and the epiphytes on the stromatolites, respectively, of a saline lake located on the west coast of Australia. Both strains were chemoheterotrophic, Gram-negative and motile rods with subpolar flagella. Catalase and oxidase were produced. ONPG reaction was positive. Cells utilized D-glucose, acetate, butyrate, citrate, DL-lactate, DL-malate, pyruvate, succinate, L-aspartate and L-glutamate. Acids were produced from D-fructose and D-glucose. Bacteriochlorophyll a was synthesized under aerobic conditions. Strain OCh 239T had nitrate reductase and phosphatase. Acids were produced from L-arabinose, D-galactose, lactose, maltose, D-ribose and sucrose. The strain could grow in 0-20.0% (w/v) NaCl. Strain OCh 210T had urease. Hydrolysis of gelatin was positive. Acids were produced from D-xylose. The strain could grow in 0.5-20.0% (w/v) NaCl. The results of 16S rRNA sequence comparisons revealed that strains OCh 239T and OCh 210T formed a new cluster within the alpha-3 group of the alpha subclass of the class Proteobacteria. The similarity value of the 16S rRNA sequences between strains OCh 239T and OCh 210T was 95.8%. Therefore, it was concluded that these two strains should be placed in a new genus, Roseivivax gen. nov., as the new species Roseivivax halodurans sp. nov. and Roseivivax halotolerans sp. nov. The type species of the genus is Roseivivax halodurans. The type strains of Roseivivax halodurans and Roseivivax halotolerans are OCh 239T (= JCM 10272T) and OCh 210T (= JCM 10271T), respectively.  (+info)

Thiorhodospira sibirica gen. nov., sp. nov., a new alkaliphilic purple sulfur bacterium from a Siberian soda lake. (7/358)

A new purple sulfur bacterium was isolated from microbial films on decaying plant mass in the near-shore area of the soda lake Malyi Kasytui (pH 9.5, 0.2% salinity) located in the steppe of the Chita region of south-east Siberia. Single cells were vibrioid- or spiral-shaped (3-4 microns wide and 7-20 microns long) and motile by means of a polar tuft of flagella. Internal photosynthetic membranes were of the lamellar type. Lamellae almost filled the whole cell, forming strands and coils. Photosynthetic pigments were bacteriochlorophyll a and carotenoids of the spirilloxanthin group. The new bacterium was strictly anaerobic. Under anoxic conditions, hydrogen sulfide and elemental sulfur were used as photosynthetic electron donors. During growth on sulfide, sulfur globules were formed as intermediate oxidation products. They were deposited outside the cytoplasm of the cells, in the peripheral periplasmic space and extracellularly. Thiosulfate was not used. Carbon dioxide, acetate, pyruvate, propionate, succinate, fumarate and malate were utilized as carbon sources. Optimum growth rates were obtained at pH 9.0 and optimum temperature was 30 degrees C. Good growth was observed in a mineral salts medium containing 5 g sodium bicarbonate l-1 without sodium chloride. The new bacterium tolerated up to 60 g sodium chloride l-1 and up to 80 g sodium carbonates l-1. Growth factors were not required. The DNA G + C composition was 56.0-57.4 mol%. Based on physiological, biochemical and genetic characteristics, the newly isolated bacterium is recognized as a new species of a new genus with the proposed name Thiorhodospira sibirica.  (+info)

Bacteriochlorin-protein interactions in native B800-B850, B800 deficient and B800-Bchla(p)-reconstituted complexes from Rhodopseudomonas acidophila, strain 10050. (8/358)

Recently, a method which allows the selective release and removal of the 800 nm absorbing bacteriochlorophyll a (B800) molecules from the LH2 complex of Rhodopseudomonas acidophila strain 10050 has been described [Fraser, N.J. (1999) Ph.D. Thesis, University of Glasgow, UK]. This procedure also allows the reconstitution of empty binding sites with the native pigment Bchla(p), esterified with phytol. We have investigated the bacteriochlorophylla-protein interactions in native, B800 deficient (or B850) and in B8110-bacteriochlorophylla(p)-reconstituted LH2 complexes by resonance Raman spectroscopy. We present the first direct structural evidence which shows that the reconstituted pigments are correctly bound within their binding pockets.  (+info)

*Bacteriochlorophyll

Different groups contain different types of bacteriochlorophyll: Bacteriochlorophylls a, b, and g are bacteriochlorins, meaning ... Groups that contain bacteriochlorophyll conduct photosynthesis, but do not produce oxygen. They use wavelengths of light not ... Bacteriochlorophylls are photosynthetic pigments that occur in various phototrophic bacteria. They were discovered by C. B. van ... 2012-08-10). "Bacteriochlorophyll f: properties of chlorosomes containing the "forbidden chlorophyll"". Front. Microbiol. 3: ...

*Tetradentate ligand

Bacteria may use variants called bacteriochlorophylls. Schneider, Peter W.; Collman, James P. (October 1968). "Complexes of ...

*Porphyrin

These include corrins, chlorins, bacteriochlorophylls, and corphins. Chlorins (2,3-dihydroporphyrin) are more reduced, contain ...

*Erythrobacter longus

It contains bacteriochlorophyll a. It is motile by means of subpolar flagella. Its type strain is OCh101 (= IFO 14126). Shiba, ... nov., an Aerobic Bacterium Which Contains Bacteriochlorophyll a". International Journal of Systematic Bacteriology. 32 (2): 211 ... Shimada, Keizo; Hayashi, Hidenori; Tasumi, Mitsuo (1985). "Bacteriochlorophyll-protein complexes of aerobic bacteria, ...

*Roseobacter denitrificans

It contains Bacteriochlorophyll a. It contains spheroidenone, does not synthesize bacteriochlorophyll anaerobically, but shows ... nov., Aerobic Pink-Pigmented Bacteria which Contain Bacteriochlorophyll a". Systematic and Applied Microbiology. 14 (2): 140- ...

*Porphine

... found in bacteriochlorophyll; and corrin, which has a cobalt center in cobalamin or vitamin B12. Budavari, Susan (1989). "7574 ...

*Chlorophyll c

Chlorophylls and Bacteriochlorophylls: Advances in Photosynthesis and Respiration. 25: 39-53. doi:10.1007/1-4020-4516-6_3. ...

*Chlorobium

It synthesizes chlorophyll a and bacteriochlorophylls (BChls) a and c, of which the model organism has been used to elucidate ... Chlorophylls and Bacteriochlorophylls: Biochemistry, Biophysics, Functions and Applications. 25. Springer. Vol. 25, pp. 201-221 ... Photosynthesis is achieved using a Type 1 Reaction Centre using bacteriochlorophyll (BChl) a. Two photosynthetic antenna ...

*Chromatophore (bacteria)

Chromatophores contain bacteriochlorophyll pigments and carotenoids. In purple bacteria, such as Rhodospirillum rubrum, the ...

*Chlorobium tepidum

They contain bacteriochlorophyll c and chlorosomes. Chlorobium tepidum contains a genome that contains 2.15 Mbp. There are a ... Frigaard NU, Voigt GD, Bryant DA (June 2002). "Chlorobium tepidum mutant lacking bacteriochlorophyll c made by inactivation of ... the bchK gene, encoding bacteriochlorophyll c synthase". Journal of Bacteriology. 184 (12): 3368-76. doi:10.1128/jb.184.12.3368 ...

*Chlorophyll a

These organisms use bacteriochlorophyll and some chlorophyll a but do not produce oxygen. Anoxygenic photosynthesis is the term ... Genes code for the enzymes on the Mg-tetrapyrroles of both bacteriochlorophyll a and chlorophyll a. It begins with glutamic ... The porphyrin ring of bacteriochlorophyll is saturated, and lacking alternation of double and single bonds causing variation in ... "Singlet and triplet excited state properties of natural chlorophylls and bacteriochlorophylls". Photosynthesis Research. 106 (3 ...

*Phototrophic prokaryotes

These are referred to as bacteriochlorophylls, and they do not produce oxygen. Among phototrophic bacteria, the phylum ...

*Chloroflexi (phylum)

Nov., a phototrophic filamentous gliding bacterium containing bacteriochlorophyll a". Archives of Microbiology. 142 (2): 164- ...

*Fenna-Matthews-Olson complex

Tronrud, D.E.; Schmid, M.F.; Matthews, B.W. (April 1986). "Structure and X-ray amino acid sequence of a bacteriochlorophyll a ... Pearlstein, Robert M. (1992). "Theory of the optical spectra of the bacteriochlorophyll a antenna protein trimer from ... Fenna, R. E.; Matthews, B. W. (1975). "Chlorophyll arrangement in a bacteriochlorophyll protein from Chlorobium limicola". ... Each of the three monomers contains seven bacteriochlorophyll a (BChl a) molecules. They are bound to the protein scaffold via ...

*Blastomonas

nov., a bacteriochlorophyll-containing bacterium isolated from lake water". International Journal of Systematic and ...

*Roseococcus thiosulfatophilus

It is an obligately aerobic, bacteriochlorophyll a-containing bacteria. Yurkov, V.; Stackebrandt, E.; Holmes, A.; Fuerst, J. A ... Bacteriochlorophyll a-Containing Bacteria and Description of Roseococcus thiosulfatophilus gen. nov., sp. nov., ... the aerobic bacteria Roseococcus thiosulfatophilus RB3 and Erythromicrobium ramosum E5 is not bound to the bacteriochlorophyll ...

*Craurococcus

nov., novel aerobic bacteriochlorophyll a-containing bacteria from soil". International Journal of Systematic Bacteriology. 48 ...

*Roseobacter

nov., aerobic pink-pigmented bacteria which contain bacteriochlorophyll a". Syst. Appl. Microbiol. 14: 140-145. doi:10.1016/ ... both pink-pigmented bacteriochlorophyll a-producing strains isolated from marine algae. The role members of the Roseobacter ...

*Brian Matthews (biochemist)

Fenna RE, Matthews BW (1975). "Chlorophyll arrangement in a bacteriochlorophyll protein from Chlorobium limicola". Nature. 258 ... and the light-antenna bacteriochlorophyll protein. Beyond his contributions to biochemistry, Matthews is also known in the ...

*Erythromicrobium ramosum

It is an obligately aerobic, bacteriochlorophyll a-containing bacteria. Parte, A.C. "Erythromicrobium". www.bacterio.net. ... Yurkov, V. "Gad'on N, Angerhofer A, Drews G (1994) Light harvesting complexes of aerobic bacteriochlorophyll-containing ... Bacteriochlorophyll a-Containing Bacteria and Description of Roseococcus thiosulfatophilus gen. nov., sp. nov., ... E5 and the transfer of excitation energy from carotenoids to bacteriochlorophyll." Z Naturforsch 49: 579-586. Erythromicrobium ...

*Heliothrix oregonensis

... is a phototrophic filamentous, gliding bacterium containing bacteriochlorophyll a that is aerotolerant ... nov., a phototrophic filamentous gliding bacterium containing bacteriochlorophyll a". Archives of Microbiology. 142 (2): 164- ...

*Blastomonas aquatica

nov., a bacteriochlorophyll-containing bacterium isolated from lake water". International Journal of Systematic and ... Blastomonas aquatica is a Gram-negative, bacteriochlorophyll-containing and aerobic bacteria from the genus of Blastomonas ...

*Erythrobacter litoralis

It is an obligately aerobic, bacteriochlorophyll a-containing bacteria. Yurkov, V.; Stackebrandt, E.; Holmes, A.; Fuerst, J. A ... Bacteriochlorophyll a-Containing Bacteria and Description of Roseococcus thiosulfatophilus gen. nov., sp. nov., ...

*Porphyrobacter

nov., an aerobic bacteriochlorophyll-containing bacterium capable of degrading biphenyl and dibenzofuran". Archives of ... nov., a novel slightly thermophilic, aerobic, bacteriochlorophyll a-containing species". International Journal of Systematic ...

*Roseivivax halotolerans

nov., aerobic bacteriochlorophyll-containing bacteria isolated from a saline lake". International Journal of Systematic ... It is aerobic and bacteriochlorophyll-containing, first isolated from the epiphytes on the stromatoltes of a saline lake ...
Yellow or orange-to-brown pigmented, ovoid or rod-shaped, Gram-negative staining, aerobic strains PE 4-5T and N5-10 m-1 were isolated from brackish water in Lake Peng Co and fresh to brackish water in Lake Namtso on the Tibetan Plateau, China. Bacteriochlorophyll a was produced by the isolates. The predominant cellular fatty acids were C16 : 1, C17 : 1 and C18 : 1 unsaturated fatty acids, C17 : 1ω6c (55.3 %), C17 : 1ω8c (13.0 %) and C18 : 1ω7c (10.4 %) for PE 4-5T and C18 : 1ω7c (54.7 %) and C16 : 1ω7c (18.0 %) for N5-10 m-1. The polar lipid profiles of strains PE 4-5T and N5-10 m-1 were composed of diphosphatidylglycerol, phosphatidylcholine (not detected in N5-10 m-1), phosphatidyldimethylethanolamine, phosphatidylethanolamine, phosphatidylmonomethylethanolamine, phosphatidylglycerol, sphingoglycolipid and an unknown phospholipid. The predominant respiratory quinone was ubiquinone Q10 and the DNA G+C content was 66.0 mol% for both strains. The16S rRNA gene sequence of strain PE 4-5T shared 99.0 %
www.MOLUNA.de Chlorophylls and Bacteriochlorophylls [4093768] - The first dedicated new work since 1991, this book reviews recent progress and current studies in the chemistry, metabolism and spectroscopy of chlorophylls, bacteriochlorophylls and their protein complexes. Also discussed is progress on the applications of chlorophylls as photosensitizers in photodynamic therapy of cancerous tumours, and as molecular probes in
Natural photosynthetic pigments bacteriochlorophyllsc, d and e in green bacteria undergo self-assembly to create an organized antenna system known as the chlorosome, which collects photons and funnels the resulting excitation energy toward the reaction centers. Mimicry of chlorosome function is a central pro
Bacterial antenna complex proteins are the main light-absorbing components in photosynthetic bacteria. Also known as a light-harvesting complex/system, the bacterial antenna complex is responsible for the transfer of solar energy to the photosynthetic reaction centre. The bacterial antenna complexes of all photosynthetic bacteria have similar features. They consist of light-absorbing pigments that are either non-covalently associated with integral proteins in the case of purple photosynthetic bacteria and cyanobacteria, or present in chlorosomes in the case of green photosynthetic bacteria. The light-absorbing pigments in chlorosomes do not associate with integral proteins for assembly. Green and purple photosynthetic bacteria utilize different bacteriochlorophyll molecules while cyanobacteria contain chlorophyll, the light-absorbing pigments found in plants. Purple photosynthetic bacteria, particularly Rhodopseudomonos acidophilia of purple non-sulfur bacteria, have been one of the main groups ...
Bacteriochlorophylls are photosynthetic pigments that occur in various phototrophic bacteria. They were discovered by C. B. van Niel in 1932. They are related to chlorophylls, which are the primary pigments in plants, algae, and cyanobacteria. Groups that contain bacteriochlorophyll conduct photosynthesis, but do not produce oxygen. They use wavelengths of light not absorbed by plants or Cyanobacteria. Different groups contain different types of bacteriochlorophyll: ...
Enhancement of the nonresonant second order molecular hyperpolarizabilities {gamma} were observed in stacked macrocyclic molecular systems, previously in a {micro}-oxo silicon phthalocyanine (SiPcO) monomer, dimer and trimer series, and now in bacteriochlorophyll a (BChla) arrays of light harvesting (LH) proteins. Compared to monomeric BChla in a tetrahydrofuran (THF) solution, the |{gamma}| for each macrocycle was enhanced in naturally occurring stacked macrocyclic molecular systems in the bacterial photosynthetic LH proteins where BChla`s are arranged in tilted face-to-face arrays. In addition, the {gamma} enhancement is more significant in B875 of LH1 than in B850 in LH2. Theoretical modeling of the nonresonant {gamma} enhancement using simplified molecular orbitals for model SiPcO indicated that the energy level of the two photon state is crucial to the {gamma} enhancement when a two photon process is involved, whereas the charge transfer between the monomers is largely responsible when one photon
Bedömning av hjärtpåverkan hos patienter med cytostatikabehandling: Global strain och ejektionsfraktion för vänster kammare som metoder att bedöma hjärtpåverkan hos patienter som behandlas med hjärttoxisk cancerbehandling ...
said Pennsylvania State University Professor Donald Bryant, one of the teams leaders. Bryant said green bacteria are a group of organisms that generally live in extremely low-light environments, such as in light-deprived regions of hot springs and at depths of about 325 feet in the Black Sea.. The bacteria contain structures called chlorosomes, which contain up to 250,000 chlorophylls.. ...
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Zinth, Wolfgang; Dressler, K.; Hamm, P.; Buchanan, S. und Michel, H. (1994): Is there a bacteriochlorophyll anion in the primary electron transfer of reaction centers? In: Wiersma, D.A. (Hrsg.): Femtosecond Reaction Dynamics. Amsterdam: North Holland Publishing Company. S. 245-253 [PDF, 1MB] ...
Evaluation des enfants de r fugi s et d immigrants : r le du d pistage des parasites www.cps.ca/francais/enonces/ID/id94-07.htm. R sistance b talactamine. R sistance aux b talactamines www.biomath.jussieu.fr/bacterio/betalact/index.html. Lignes directrices pour l valuation de la sensibilit des Enterobacteriaceae r sistants aux antibiotiques cause des b-lactamases spectre tendu (BLSE) et le signalement des cas www.hc-sc.gc.ca/hpb/lcdc/bmb/ceqaagar/esb198_f.html. R sistance m thicilline. Le contr le du staphylocoque dor r sistant la m thicilline dans les tablissements p diatriques canadiens est toujours d actualit www.cps.ca/francais/enonces/ID/id99-03.htm. Lignes directrices pour l valuation de la sensibilit aux antimicrobiens de Staphylococcus aureus r sistant la m thicilline (SARM) et le signalement des cas et commentaires sur les staphylocoques coagulase n gative r sistants la m thicilline (SCN-RM). www.hc-sc.gc.ca/hpb/lcdc/bmb/ceqaagar/mrsa98_f.html. R sistance microbienne aux m ...
Purple and green bacteria and cyanobacteria are photosynthetic. Photosynthetic bacteria are able to produce energy from the suns rays in a process similar to that used by plants. Instead of using...
Absorption spectra of BChl a-associated proteins from various C. tepidum strains recovered by Ni2+-affinity purification.Absorption spectra (traces 1-6) of BChl
wst1 blank absorbance problem - posted in Tissue and Cell Culture: Hi everyone, Recently, Ive tried wst1 assay for the first time. After treating the cells with chemical, i added 100 ul fresh DMEM containing 10 ul wst1 and incubated for 3 hours. Ive measured the absorbance in 355-460 interval (this was the closest filter pair to 450 nm -that I could choose in our reader-). Unexpectedly, I got the maximum absorbance values in my blank samples (DMEM+wst1; without cells) and positive controls...
The synthesis of bacteriochlorophyll (Bchl) was inhibited in wild type strain of Rhodopseudomonas capsulata by levulinic acid (LA), δ-aminolevulinic acid of α,α′-dipyridyl. The transcription of genes for pigment-binding proteins, the synthesis and incorporation of these proteins into the membrane and the assembly of photosynthetic complexes were studied. Inhibition of Bchl synthesis did not impair formation of mRNA for pigment-binding polypeptides, but inhibited the synthesis of these proteins as well as stable incorporation into the membrane. The results let suggest, that Bchl is necessary for the stabilization of pigment-binding proteins in the membrane, and that intermediates of Bchl-synthesis affect the synthesis of these proteins. The same experiments were carried out with mutant strains blocked in Bchl synthesis. All Bchl-less mutant strains investigated here, showed transcription of photosynthetic genes at a rate which was independent of oxygen tension. The synthesis of polypeptides of
Catalyzes the formation of the isocyclic ring in chlorophyll biosynthesis. Mediates the cyclase reaction, which results in the formation of divinylprotochlorophyllide (Pchlide) characteristic of all chlorophylls from magnesium-protoporphyrin IX 13-monomethyl ester (MgPMME).
The evolutionary origin of photosynthetic reaction centers has long remained elusive. Here, we use sequence and structural analysis to demonstrate an evolutionary link between the cytochrome b subunit of the cytochrome bc(1) complex and the core polypeptides of the photosynthetic bacterial reaction center. In particular, we have identified an area of significant sequence similarity between a three contiguous membrane-spanning domain of cytochrome b, which contains binding sites for two hemes, and a three contiguous membrane-spanning domain in the photosynthetic reaction center core subunits, which contains binding sites for cofactors such as (bacterio)chlorophylls, (bacterio)pheophytin and a non-heme iron. Three of the four heme ligands in cytochrome b are found to be conserved with the cofactor ligands in the reaction center polypeptides. Since cytochrome b and reaction center polypeptides both bind tetrapyrroles and quinones for electron transfer, the observed sequence, functional and ...
The evolutionary origin of photosynthetic reaction centers has long remained elusive. Here, we use sequence and structural analysis to demonstrate an evolutionary link between the cytochrome b subunit of the cytochrome bc(1) complex and the core polypeptides of the photosynthetic bacterial reaction center. In particular, we have identified an area of significant sequence similarity between a three contiguous membrane-spanning domain of cytochrome b, which contains binding sites for two hemes, and a three contiguous membrane-spanning domain in the photosynthetic reaction center core subunits, which contains binding sites for cofactors such as (bacterio)chlorophylls, (bacterio)pheophytin and a non-heme iron. Three of the four heme ligands in cytochrome b are found to be conserved with the cofactor ligands in the reaction center polypeptides. Since cytochrome b and reaction center polypeptides both bind tetrapyrroles and quinones for electron transfer, the observed sequence, functional and ...
Credit points: 6 Teacher/Coordinator: A/Prof Paul Witting Session: Semester 1 Classes: Lectures (2 h/wk) and online lecturettes (3 x 20 min/wk); group focus tutorial (3 x 2 h over 2-3 weeks); guided museum session (1 h/wk); and preparation of online research notebooks (1 h/wk). Prerequisites: A mark of 70 or above in 12cp from {[ANAT2008 or ANAT2009 or (ANAT2010 or ANAT2910) or ANAT2011] or [BCHM2071 or BCHM2971) or BCHM2072 or BCHM2972) or BCHM2081 or BCHM2981) or BCHM2082 or BCHM2982)] or [(BCMB2001 or BCMB2901) or BCMB2002 or BCMB2902)] or [(BIOL2021 or BIOL2921) or (BIOL2022 or BIOL2922) or (BIOL2024 or BIOL2924) or (BIOL2030 or BIOL2930) or (BIOL2031 or BIOL2931)] or [(GEGE2001 or GEGE2901)] or [(IMMU2101 or MICR2021 or MICR2921 or MICR2022 or MICR2922 or MICR2031 or MICR2931 or MIMI2002 or MIMI2902)] or [(MBLG2071 or MBLG2971) or (MBLG2072 or MBLG2972)] or [(PCOL2011 or PCOL2021) or (PCOL2012 or PCOL2022)] or [(PHSI2005 or PHSI2905) or (PHSI2006 or PHSI2906) or (PHSI2007 or PHSI2907) or ...
Gottstein, J. und Scheer, Hugo (1983): Long-wavelength-absorbing forms of bacteriochlorophyll a in solutions of Triton X-100. In: Proceedings of the National Academy of Sciences of the USA, Vol. 80: S. 1887-1892 ...
Here is the best resource for homework help with BCHM 1014 : Biochem Protein Structures at Wayne State University. Find BCHM1014 study guides, notes, and
In Phase I, GeneXpress Informatics (GXI) and Dr. James P. Chambers of the University of Texas at San Antonio proposed to develop biological obscurants for battlefield applications based on the use of bacteriochlorophylls. Upon completion and presentation of results to MARCORSYSCOM, GXI and Chambers provided the necessary technical proof-of-concept for the Phase II deployment of a biological based obscurant. In Phase II, GXI and Dr. Chambers proposes to fabricate a biological obscurant prototype. The main goal of the Phase II program will be the development of biological molecules which have spectroscopic characteristics for optimal obscuration at wavelengths of interest to the MARCORSYSCOM and the DoD. Spectral absorption tuning of the chlorophyll compounds will be accomplished using site-directed mutagenesis of chlorophyll a oxygenase and genetic constructs developed in the Phase I. The emphasis will be placed on bacteria mutant strains and examination of pilot bioreactor processing. The ideal ...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
We report the spin state photo-switching dynamics in two polymorphs of a spin-crossover molecular complex triggered by a femtosecond laser flash, as determined by combining femtosecond optical pump-probe spectroscopy and picosecond X-ray diffraction techniques. The light-driven transformations in the two pol Ultrafast chemical dynamics
The protein is actually located in chlorosome. Transfer energy was calculated with hetero-atoms. This is solid state NMR model ...
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Bacteriochlorophyll a Containing Microbes (BCM) are a unique group of microorganisms in the marine environment. Accurate determination of their abundance is critical for understanding their role in energy flow and carbon cycle in the ecosystem. The I
Chloroflexus aurantiacus is a photosynthetic bacterium isolated from hot springs, belonging to the green non-sulfur bacteria. This organism is thermophilic and can grow at temperatures from 35 °C to 70 °C. Chloroflexus aurantiacus can survive in the dark if oxygen is available. When grown in the dark, Chloroflexus aurantiacus has a dark orange color. When grown in sunlight it is dark green. The individual bacteria tend to form filamentous colonies enclosed in sheaths, which are known as trichomes. As a genus, Chloroflexus spp. are filamentous anoxygenic phototrophic (FAP) organisms that utilize type II photosynthetic reaction centers containing bacteriochlorophyll a similar to the purple bacteria, and light-harvesting chlorosomes containing bacteriochlorophyll c similar to green sulfur bacteria of the Chlorobi. Like other members of its phylum (cf. Chloroflexi), the species stains Gram negative, yet has a single lipid layer (monoderm), but with thin peptidoglycan, which is compensated for by ...
Green photosynthetic bacteria adjust the structure and functionality of the chlorosome - the light absorbing antenna complex - in response to environmental stress factors. The chlorosome is a natural self-assembled aggregate of bacteriochlorophyll (BChl) molecules. In this study we report the regulation of the biogenesis of the Chlorobaculum tepidum chlorosome by carbon assimilation in conjunction with temperature changes. Our studies indicate that the carbon source and thermal stress culture of Cba. tepidum grows slower and incorporates less BChl c in the chlorosome. Compared with the chlorosome from other cultural conditions we investigated, the chlorosome from the carbon source and thermal stress culture displays: (a) smaller cross-sectional radius and overall size; (b) simplified BChl c homologues with smaller side chains; (c) blue-shifted Qy absorption maxima and (d) a sigmoid-shaped circular dichroism (CD) spectra. Using a theoretical model we analyze how the observed spectral ...
Chloroflexus aurantiacus ATCC ® 29366D-5™ Designation: Genomic DNA from Chloroflexus aurantiacus strain J-10-fl TypeStrain=True Application:
The green sulfur bacteria are a family of obligately anaerobic photoautotrophic bacteria. Most closely related to the distant Bacteroidetes, they are accordingly assigned their own phylum.[1] Green sulfur bacteria are nonmotile (except Chloroherpeton thalassium, which may glide)[1] and occur in spheres, rods, and spirals.[citation needed] Photosynthesis is achieved using a Type 2[citation needed] Reaction Centre using bacteriochlorophyll (BChl) a and in chlorosomes which employ BChl c, d, or e; in addition chlorophyll a is also present,.[1] They use sulfide ions, hydrogen or ferrous iron as an electron donor and the process is mediated by the type I reaction centre and Fenna-Matthews-Olson complex. Elemental sulfur deposited outside the cell may be further oxidized. By contrast, the photosynthesis in plants uses water as the electron donor and produces oxygen.[1] Chlorobium tepidum has emerged as a model organism for the group; although only 10 genomes have been sequenced, these are quite ...
Jaschke PR, Drake I, Beatty JT. (2009). Modification of a French pressure cell to improve microbial cell disruption. Photosynth Res. 102(1): 95-7. Abstract PDF Jaschke PR. (2010). Discovery and characterization of a new zinc-bacteriochlorophyll biosynthetic pathway and photosystem in a magnesium-chelatase mutant. PhD Thesis. University of British Columbia. Abstract PDF Lin S,Jaschke PR, Wang H, Paddock M, Tufts A, Allen JP, Rosell FI, Mauk GA, Woodbury NW, Beatty JT. (2009). Electron transfer in the Rhodobacter sphaeroides reaction center assembled with zinc bacteriochlorophyll. Proceedings of the National Academy of Sciences of the USA.106(21): 8537-42. Abstract PDF Jaschke PR, LeBlanc HN, Lang AS, Beatty JT. (2008). The PucC protein of Rhodobacter capsulatus mitigates an inhibitory effect of light-harvesting 2 alpha and beta proteins on light-harvesting complex 1. Photosynthesis Research. 95(2-3): 279-84. Abstract PDF Jaschke PR, Beatty JT. (2007). The photosystem of Rhodobacter sphaeroides ...
Jaschke PR, Drake I, Beatty JT. (2009). Modification of a French pressure cell to improve microbial cell disruption. Photosynth Res. 102(1): 95-7. Abstract PDF Jaschke PR. (2010). Discovery and characterization of a new zinc-bacteriochlorophyll biosynthetic pathway and photosystem in a magnesium-chelatase mutant. PhD Thesis. University of British Columbia. Abstract PDF Lin S,Jaschke PR, Wang H, Paddock M, Tufts A, Allen JP, Rosell FI, Mauk GA, Woodbury NW, Beatty JT. (2009). Electron transfer in the Rhodobacter sphaeroides reaction center assembled with zinc bacteriochlorophyll. Proceedings of the National Academy of Sciences of the USA.106(21): 8537-42. Abstract PDF Jaschke PR, LeBlanc HN, Lang AS, Beatty JT. (2008). The PucC protein of Rhodobacter capsulatus mitigates an inhibitory effect of light-harvesting 2 alpha and beta proteins on light-harvesting complex 1. Photosynthesis Research. 95(2-3): 279-84. Abstract PDF Jaschke PR, Beatty JT. (2007). The photosystem of Rhodobacter sphaeroides ...
Catalyzes the formation of the isocyclic ring in chlorophyll biosynthesis. Mediates the cyclase reaction, which results in the formation of divinylprotochlorophyllide (Pchlide) characteristic of all chlorophylls from magnesium-protoporphyrin IX 13-monomethyl ester (MgPMME).
Photophosphorylation in vivo by Chlorobium limicola was inhibited by lipophilic cations and the energy-transfer inhibitors diphenylphosphorylazide, Dio-9, 4-chloro-7-nitrobenzofurazan and chlorhexidene. Membrane-bound ATPase activity was also inhibited by these energy-transfer inhibitors. The formation of a membrane potential was stimulated approximately 1.7-fold on illumination, rising to a value between −110 and −150 mV. The sensitivity of the processes producing this membrane potential to uncouplers, energy-transfer inhibitors and 2-heptyl-4-hydroxyquinoline-N-oxide was measured in the light and the dark.
Polyethylene glycol (PEG) is a unique polymer material with enormous applicability in many industrial and scientific fields. Here, its use as macromolecular crowder to mimic the cellular environment in vitro is the focus of the present study. We show that femtosecond mid-IR pump-probe spectroscopy using three different IR probes, HDO, HN3, and azido-derivatized crowder, provides complete and stereoscopic information on water structure and dynamics in the cytoplasm-like macromolecular crowding environment. Our experimental results suggest two distinct subpopulations of water molecules: those that interact with other water molecules and those that are part of a hydration shell of crowder on its surface. Interestingly, water dynamics even in highly crowded environment remains bulk-like in spite of significant perturbation to the tetrahedral H-bonding network of water molecules. That is possible because of the formation of water aggregates (pools) even in water-deficient PEGDME-water solutions. In ...
The FPPO product line supplies tunable, multiple wavelength outputs from a fiber laser pumped, optical parametric oscillator. Two versions are available: the FPPO-ps, which delivers 6 ps pulses, and the FPPO-fs, which delivers 300 fs pulses. Both systems offer near continuous tunability from 730 - 2000 nm from the OPO signal and idler beams, as well as 532 nm and 1064 nm light from the pump laser. Possible applications of these versatile laser systems include: multi-photon imaging, pump-probe spectroscopy, fluorescence spectroscopy and Raman imaging and spectroscopy.. Specifications: ...
Chappaz-Gillot, Cyril; Marek, Peter L.; Blaive, Bruno J.; Canard, Gabriel; Bürck, Jochen; Garab, Győző; Hahn, Horst; Jávorfi, Tamás; Kelemen, Loránd; Krupke, Ralph; Mössinger, Dennis; Ormos, Pál; Reddy, Chilla Malla; Roussel, Christian; Steinbach, Gábor; Szabó, Milán; Ulrich, Anne S.; Vanthuyne, Nicolas; Vijayaraghavan, Aravind; Zupcanova, Anita; ... mehrBalaban, Teodor Silviu ...
TY - JOUR. T1 - Inhibition of porphyrin biosynthesis by exogenous 5-aminolevulinic acid in an aerobic photosynthetic bacterium, Erythrobacter sp. OCh 114. AU - Shioi, Yuzo. AU - Doi, Michio. AU - Tanabe, Kimiko. AU - Shimokawa, Keishi. PY - 1988/11/1. Y1 - 1988/11/1. N2 - Exogenously administrated 5-aminolevulinic acid (ALA) inhibited the formation of bacteriochlorophyll a (Bchl a) in a dose-dependent manner in the aerobic photosynthetic bacterium, Erythrobacter sp. strain OCh 114, under dark growth conditions. The ALA concentration required for half-inhibition after 24-h growth was estimated to be about 3.0 mm. Porphyrin and Bchl precursors were not found in either the cells or the growth medium. The same inhibition was also observed with cytochrome c formation. When ALA was incubated with intact cells, a large amount of ALA was converted to an unknown metabolite. The pH optimum of the conversion was 7.8. The metabolite did not react with Ehrlichs reagent, but did so with ninhydrin, giving a ...
A novel thermophilic, microaerophilic, anoxygenic, and chlorophototrophic member of the phylum Acidobacteria, Chloracidobacterium thermophilum strain B T, was isolated from a cyanobacterial enrichment culture derived from microbial mats associated with Octopus Spring, Yellowstone National Park, Wyoming. C. thermophilum is strictly dependent on light and oxygen and grows optimally as a photoheterotroph at irradiance values between 20 and 50 µmol photons m⁻² s⁻¹. C. thermophilum is unable to synthesize branched-chain amino acids (AAs), L-lysine, and vitamin B₁₂, which are required for growth. Although the organism lacks genes for autotrophic carbon fixation, bicarbonate is also required. Mixtures of other AAs and 2-oxoglutarate stimulate growth. As suggested from genomic sequence data, C. thermophilum requires a reduced sulfur source such as thioglycolate, cysteine, methionine, or thiosulfate. The organism can be grown in a defined medium at 51° C (T opt; range 44-58°C) in the pH ...
Primary photochemistry in the facultatively aerobic green photosynthetic bacterium Chloroflexus aurantiacus: Photochemical activity was examined in membrane fra
TY - JOUR. T1 - Bound manganese oxides capable of reducing the bacteriochlorophyll dimer of modified reaction centers from Rhodobacter sphaeroides. AU - Espiritu, Eduardo. AU - Chamberlain, Kori D.. AU - Williams, Jo Ann C.. AU - Allen, James P.. PY - 2019/1/1. Y1 - 2019/1/1. N2 - A biohybrid model system is described that interfaces synthetic Mn-oxides with bacterial reaction centers to gain knowledge concerning redox reactions by metal clusters in proteins, in particular the Mn4CaO5 cluster of photosystem II. The ability of Mn-oxides to bind to modified bacterial reaction centers and transfer an electron to the light-induced oxidized bacteriochlorophyll dimer, P+, was characterized using optical spectroscopy. The environment of P was altered to obtain a high P/P+ midpoint potential. In addition, different metal-binding sites were introduced by substitution of amino acid residues as well as extension of the C-terminus of the M subunit with the C-terminal region of the D1 subunit of photosystem ...
The Yellowstone National Park Research Coordination Network is a collaboration of scientists and NPS staff to develop a coordinated research network focused on geothermal biology and geochemistry.
The Yellowstone National Park Research Coordination Network is a collaboration of scientists and NPS staff to develop a coordinated research network focused on geothermal biology and geochemistry.
1)Washington University in St. Louis. "Taco Shell Protein: Orientation Of Antenna Protein In Photosynthetic Bacteria Described." ScienceDaily 9 April 2009. 12 April 2009 ,http://www.sciencedaily.com¬ /releases/2009/04/090402171438.htm,. ( 2)D.A. Bryant & N.-U. Frigaard (November 2006). "Prokaryotic photosynthesis and phototrophy illuminated". Trends Microbiol. 14 (11): 488. doi:10.1016/j.tim.2006.09.001 (3)Beatty, J.T.; Overmann, J.; Lince, M.T.; Mansket, A.K.; Lang, A.S.; Blankenship, R.E.; Van Dover, C.L.; Martinson, T.A.; Plumley, F.G. " An obligately photosynthetic bacterial anaerobe from a deep-sea hydrothermal vent". PNAS June 28, 2005 vol. 102 no. 26 9306-9310 (4)Li YF, Zhou W, Blankenship RE, Allen JP (1997) Crystal structure of the bacteriochlorophyll a protein from Chlorobium tepidum. J Mol Biol 271:456-471. (5)Olson, J. M. (1978). Bacteriochlorophyll a-proteins from green bacteria. In The Photosynthetic Bacteria (Clayton, R. K. & Sistrom, W. R., eds), pp. 161± 178, Plenum Press, ...
1DS8: PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE CHARGE-NEUTRAL DQAQB STATE WITH THE PROTON TRANSFER INHIBITOR CD2+
1DV6: PHOTOSYNTHETIC REACTION CENTER FROM RHODOBACTER SPHAEROIDES IN THE CHARGE-NEUTRAL DQAQB STATE WITH THE PROTON TRANSFER INHIBITOR ZN2+
Pump-probe spectroscopy has long been useful in the elucidating ultrafast molecular phenomena. We developed a variation of time-resolved, pump-probe methodology using cross-correlation principles of the frequency-domain. An unique feature of our technique is that the low-frequency, cross correlation signal and its harmonics which contain lifetime information at high excitation frequencies can be simultaneously acquired and analyzed by a frequency spectrum analyzer. The result is that high frequency spectral information can be acquired without a fast optical detector and simultaneous acquisition of multiple harmonics reduce data acquisition time. A second key feature of this technique is that the cross-correlation signal comes primarily from the focal volume and hence microscopic imaging using this technique results in axial depth discrimination and improved spatial resolution similar in two-photon excitation microscopy. Using this technique, spectroscopic data measuring the lifetime and ...
Purified imines of porphyrins, chlorins, bateriochlorins, chlorophylls, bacteriochlorophylls, purpurins, reduced purpurins, verdins, Diels Alder adducts, benzochlorins and metal complexes of the foregoing imines are disclosed. The formulas of the benzochlorinimines and of the benzochlorinimine metal complexes are set forth below: ##STR1## In specific examples, M in the metal complexes is a copper cation that is complexed with two of the nitrogens of the benzochlorinimine R and R are methyl, and R1 through R8 are ethyl.
The cytosol contains oil droplets, food reserves and the 70S ribosomes, and is surrounded by a plasmalemma. In Gram negative bacteria, a further outer membrane surrounds the plasmalemma, with a thin cell wall and periplasmic space trapped between them. In Gram positive bacteria, there is no outer membrane, and the cell wall is thicker. The cell wall is composed of peptidoglycan and various organic acids in Eubacteria. Bacteria have flagella, but they are simple proteinaceous strands attached to a rotary motor, completely dissimilar to the complex eukaryotic undulipodium. Membranes may be present in the cell, as in the thylakoids of the Cyanobacteria. In gram-positive bacteria the mambrane may form mesosomes, which are invaginations in the cell membrane that may be involved in DNA replication and oxidative phosphorylation. The cytosol may also contain various episomes (small circular chromosomes), some called plasmids, and others called (bacterio)phages, which are bacterial viruses. Prokaryotes ...
The List of Bacterial Names with Standing in Nomenclature includes, alphabetically and chronologically, the official names of bacteria as published or validated in the International Journal of Systematic Bacteriology. It encompasses 5,569 taxa (as of 31 December 1996) and is available on the Internet (URL: ftp://ftp.cict.fr/pub/bacterio/).
Rhodobacter sphaeroides ATCC ® 17029D-5™ Designation: Genomic DNA from Rhodobacter sphaeroides strain ATH 2.4.9 TypeStrain=False Application: Biotechnology
A stretch of the Maumee River that runs through Toledo, Ohio has turned vivid green thanks to a bloom of cyanobacteria. The Toledo-Lucas County Health
This article describes the occurrence, structure,arrangement and function of bacterial intracytoplasmic membranes (ICMS) including magnetosomes of magnetotactic bacteria, the thylakoids of cyanobacteria and chloroxybacteria, the ICMS of purple bacteria and chemoautotrophic bacteria, the chlorosomes of green bacteria and the anammoxosome of ammonia‐oxidising bacteria
BCHM 100a Introductory Biochemistry. [ qr sn ]. Prerequisites: One year of organic chemistry with laboratory. Enrollment limited to 50.. Topics include chemistry, reaction, and metabolism of biologically important compounds; formation and utilization of "energy-rich" compounds; introduction to enzyme mechanisms; interrelation and comparison of basic biochemical and chemical processes; and metabolic regulation. Usually offered every year. Multiple sections.. Mr. Lowenstein (fall), Ms. Moore (spring). BCHM 101a Advanced Biochemistry I. [ sn ]. Prerequisites: One year of organic chemistry with laboratory and. BCHM 100a or their equivalent. Enrollment limited to 50.. A discussion of enzyme reactions, including energetics, kinetics, and reaction mechanisms. Metabolism of carbohydrates, lipids, amino acids, nucleic acids, vitamins and coenzymes, and hormones and inorganic substances. Coupled enzyme reactions and the synthesis of macromolecules. Regulated enzymes and the regulation of metabolism. ...
The Biochemistry BS/MS program is a research-intensive program. The program is intended for students who have independently arranged for a Brandeis professor to supervise a research project and have begun research no later than the beginning of their third undergraduate year. Students must apply to the department for admission to the BS/MS program no later than the last day of course registration for first semester of the third year. Admission to the program is contingent on departmental approval of the research topic.. In addition to all courses required for the BS degree, the BS/MS degree requires completion of BCHM 102a (Quantitative Approaches to Biochemical Systems) one additional 100-level elective (excluding research courses) approved in advance by the Undergraduate Advising Head, four semesters of research courses (consisting of one or two semesters of BCHM 99 plus two or three semesters of BCHM 150), a full-time (i.e., no concurrent course work) summer research residency lasting at ...
A successful Phase III clinical trial in Latin America confirmed the high rate of local cures and minimal side effects already reported in Phase II clinical trials.
Photochemical reaction, a chemical reaction initiated by the absorption of energy in the form of light. The consequence of molecules absorbing light is the creation of transient excited states whose chemical and physical properties differ greatly from the original molecules. These new chemical
Powstał z nudów więc z nudów pewnie będę na nim pisał. Tak naprawdę ten blog to taki wybieg w przyszłość - jak się w sobie zbiorę i zrobię do końca to co leży w szufladzie od jakiś 3 lat to prawdopodobnie blog będzie czymś w stylu zaplecza ...
Farmaceutyczne zbrodnie: HIV, pryszczyca, Hitler i testy na dzieciach. Koncerny farmaceutyczne są czyste i przejrzyste jak hipotetyczny tandem NSDAP z KPZR. Na wstępie omawiany już Baxter. Reakcja alergiczna na ich lek heparyn przyniosła od stycznia 2007 roku do kwietnia 2009 roku 103 zabitych… Stało się to powodem pozwu sądowego Joyce Ann Osteen złożonego 5 stycznia…
TY - JOUR. T1 - Carotenoid excited-state properties in photosynthetic purple bacterial reaction centers. T2 - Effects of the protein environment. AU - Pan, Jie. AU - Lin, Su. AU - Allen, James. AU - Williams, Joann. AU - Frank, Harry A.. AU - Woodbury, Neal. PY - 2011/6/2. Y1 - 2011/6/2. N2 - Carotenoid excited-state properties are characterized and compared in reaction centers (RCs) of wild-type (WT) Rhodobacter (Rb.) sphaeroides, and a mutant VR(L157), in which the near-infrared absorbance band associated with the primary electron donor, P, is missing. Energy transfer from the carotenoid (spheroidenone) S2 and relaxed S1 excited states to an adjacent monomeric-bacteriochlorophyll is unchanged between WT and the mutant RC samples. However, two other excited states, including a vibrationally hot S1 state and a state referred to as S*, have distinct properties in the two RCs. The lifetime of the hot S1 state is significantly shortened in the P-less mutant compared to WT RCs (450 fs vs 800 fs, ...
Motility in the photosynthetic bacterium Rhodobacter sphaeroides is achieved by the unidirectional rotation of a single subpolar flagellum. In this study, transposon mutagenesis was used to obtain nonmotile flagellar mutants from this bacterium. We report here the isolation and characterization of a mutant that shows a polyhook phenotype. Morphological characterization of the mutant was done by electron microscopy. Polyhooks were obtained by shearing and were used to purify the hook protein monomer (FlgE). The apparent molecular mass of the hook protein was 50 kDa. N-terminal amino acid sequencing and comparisons with the hook proteins of other flagellated bacteria indicated that the Rhodobacter hook protein has consensus sequences common to axial flagellar components. A 25-kb fragment from an R. sphaeroides WS8 cosmid library restored wild-type flagellation and motility to the mutant. Using DNA adjacent to the inserted transposon as a probe, we identified a 4.6-kb SalI restriction fragment that ...
Résumé : Engineering photosynthetic bacteria to utilize a heterologous reaction center (RC) containing a different photo-pigment could improve solar energy conversion efficiency by allowing the cell to absorb a broader range of the solar spectrum. One promising candidate is the homodimeric Type I RC from Heliobacterium modesticaldum (HbRC). It is the simplest known RC and has the benefit of using Bchl g, which absorbs in the near-infrared region of the spectrum. The purple phototrophic bacterium Rhodobacter (Rba.) sphaeroides was chosen as the platform into which the HbRC is introduced. However, to assemble a functional HbRC, engineered production of bacteriochlorophyll g (BChl g), must first be achieved. BChl g and BChl b are two chlorophyll (Chl) derivatives that contain an ethylidene substituent on ring B and share very similar biosynthetic pathways. Using the background strain Rba. sphaeroides producing BChl b rather than the native BChl a, we were able to re-direct the biosynthesis of ...
Ubiquinone (UQ), also called coenzyme Q, and plastoquinone (PQ) are electron carriers in oxidative phosphorylation and photosynthesis, respectively. The quinoid nucleus of ubiquinone is derived from the shikimate pathway; 4-hydroxybenzoate is directly formed from chorismate in bacteria, while it can be formed from either chorismate or tyrosine in yeast. The following biosynthesis of terpenoid moiety involves reactions of prenylation, decarboxylation, and three hydroxylations alternating with three methylations. The order of these reactions are somewhat different between bacteria and yeast. Phylloquinone (vitamin K1), menaquinone (vitamin K2), and tocopherol (vitamin E) are fat-soluble vitamins. Phylloquinone is a compound present in all photosynthetic plants serving as a cofactor for photosystem I-mediated electron transport. Menaquinone is an obligatory component of the electron-transfer pathway in bacteria ...
Background- Inflammation remains a crucial factor for progression of cardiac diseases and cardiac hypertrophy remains an important cause of cardiac failure over all age groups. As a key regulator of inflammation, toll like receptor 4 (TLR4) plays an important role in pathogenesis of cardiac diseases. Being an important regulator of innate immunity, the precise pathway of TLR4 mediated cardiac complications is yet to be established. Therefore, the primary objective of the present study was to find the role of TLR4 in cardiac hypertrophy and the molecular mechanism thereof. Methods- Cardiac hypertrophy was induced with administration of isoproterenol (5mg/kg/day, sc). TLR4 receptor inhibitor RS-LPS (lipopolysaccharide from the photosynthetic bacterium Rhodobacter sphaeroides; 5 microgram/day) and agonist LPS (Lipopolysaccharide from Escherichia coli; 3.12 microgram/day) were administered through osmotic pump along with isoproterenol. Cardiac hypertrophy as well as oxidative stress and mitochondrial
TY - JOUR. T1 - Anisotropic organization and microscopic manipulation of self-assembling synthetic porphyrin microrods that mimic chlorosomes. T2 - Bacterial light-harvesting systems. AU - Chappaz-Gillot, Cyril. AU - Marek, Peter L.. AU - Blaive, Bruno J.. AU - Canard, Gabriel. AU - Bürck, Jochen. AU - Garab, G.. AU - Hahn, Horst. AU - Jávorfi, Tamás. AU - Kelemen, L.. AU - Krupke, Ralph. AU - Mössinger, Dennis. AU - Ormos, P.. AU - Reddy, Chilla Malla. AU - Roussel, Christian. AU - Steinbach, Gábor. AU - Szabó, Milán. AU - Ulrich, Anne S.. AU - Vanthuyne, Nicolas. AU - Vijayaraghavan, Aravind. AU - Zupcanova, Anita. AU - Balaban, Teodor Silviu. PY - 2012/1/18. Y1 - 2012/1/18. N2 - Being able to control in time and space the positioning, orientation, movement, and sense of rotation of nano- to microscale objects is currently an active research area in nanoscience, having diverse nanotechnological applications. In this paper, we demonstrate unprecedented control and maneuvering of ...
Ras of complex proteins (Roc) is a Ras-like GTP binding domain that always occurs in tandem with the C-terminal of Roc (COR) domain, and is found in bacteria, plants and animals. Recently, it has been shown that Roco proteins belong to the family of G-proteins activated by nucleotide-dependent dimerization (GADs). We investigated the RocCOR tandem from the bacteria Chlorobium tepidum with site-directed spin labeling and pulse EPR distance measurements to follow conformational changes during the Roco G-protein cycle. Our results confirm that the COR domains are a stable dimerization device serving as a scaffold for the Roc domains, that in contrast are structurally heterogeneous and dynamic entities. Contrary to other GAD proteins, we observed only minor structural alterations upon binding and hydrolysis of GTP, indicating significant mechanistic variations within this protein class. Mutations in the most prominent member of the Roco family of proteins, leucine-rich repeat kinase 2 (LRRK2), are ...
Title: Reversible Changes in the Structural Features of Photosynthetic Light-Harvesting Complex 2 by Removal and Reconstitution of B800 Bacteriochlorophyll a ...
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2uxm: pH modulates the quinone position in the photosynthetic reaction center from Rhodobacter sphaeroides in the neutral and charge separated states.
1pcr: Structure of the photosynthetic reaction centre from Rhodobacter sphaeroides at 2.65 A resolution: cofactors and protein-cofactor interactions.
... is developing a proprietary first-in-class therapy to prevent and reverse nerve damage. Our lead compound, WST57, is a well-characterized off-patent compound with an established safety history that has been used for many years against an unrelated indication, this may allow a direct path to market and reducing development time and cost.. WST57 prevents, mitochondrial dysfunction, nerve fiber depletion and sensory loss in several distinct animal models of peripheral neuropathy.. We are strategically expanding WST57s indications to all neuropathies, such as chemo induced and HIV related. Additionally, WST57 is just one compound we are investigating in a family of promising compounds that we have exclusive world wide rights to.. ...
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These experimental observations were interpreted as due to a change in the conformation of TyrL162, which moves approximately 1.3 Å towards the special pair (Figure 65: blue: conformation photo-activated state; grey: conformation resting state) in response to light. Molecular dynamics simulations and free energy calculations suggested that this motion arises because Tyr162 becomes deprotonated following the primary electron transfer event of an electron away from the special pair (P960). This supports the concept of complementary electron-proton transfer reactions, whereby the excess positive charge on P+960 induces a proton transfer away from TyrL162 in a direction opposite to that of the electron transfer. This principle may find application in the future design of energy transducing systems of artificial photosynthesis.. Principal publication and authors. A.B. Wöhri (a,b), G. Katona (c), L.C. Johansson (c), E. Fritz (c), E. Malmerberg (c), M. Andersson (a), J. Vincent (d), M. Eklund (d), M. ...
Curated}} {{Biorealm Genus}} [[Image:e_ezovicum.png,frame,right,Erythromicrobium ezovicum Image from [http://141.150.157.117:8080/prokPUB/chaphtm/309/COMPLETE.htm V. V. Yurkov, "Aerobic Phototrophic Proteobacteria", March, 2001. Springer-Verlag New York, LLC.]]] ==Classification== ===Higher order taxa:=== Bacteria; Proteobacteria; Alphaproteobacteria; Sphingomonadales; Erythrobacteraceae ===Species:=== Erythromicrobium ezovicum, E. hydrolyticum, E. ramosum, Erythromicrobium sp. {, , height="10" bgcolor="#FFDF95" , NCBI: [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=35810 Taxonomy] ,} ==Description and Significance== Despite the presence of bacteriochlorophyll a (Bchl a), Erythromicrobium is not capable of growing photosynthetically, which distinguishes the bacterium from other Bchl a-containing groups. Other main features include low levels of photosynthetic units in cells and strong inhibition by light of Bchl a synthesis (Yurkov et al). Due to the ...
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BCHM 501 BIOCHEMISTRY I 3 credits Studies the structures and functions of proteins and enzymes such as amino acids and peptides; the metabolism of carbohydrates and lipids, the respiratory chain, oxidative phosphorylation, citric acid cycle, glycolysis, ketogenesis and the synthesis of cholesterol. Included are the biosynthesis of essential and non-essential amino acids and the catabolism of amino acids. Prerequisite: Biology and Chemistry. ...
MetabolismBiosynthesis of cofactors, prosthetic groups, and carriersChlorophyll and bacteriochlorphylllight-dependent protochlorophyllide reductase (TIGR01289; EC 1.3.1.33; HMM-score: 13.3) ...
Photosynthetic organisms have evolved diverse antennas to harvest light of various qualities and intensities. Anoxygenic phototrophs can have bacteriochlorophyll Qy antenna absorption bands ranging from about 700-1100 nm. This broad range of usable wavelengths has allowed many organisms to thrive in unique environments. Roseiflexus castenholzii is a niche-adapted, filamentous anoxygenic phototroph: FAP) that lacks chlorosomes, the dominant antenna found in all green bacteria. Light-harvesting is realized only in the membrane with BChl a and a variety of carotenoids. Through biochemical and spectroscopic methods, a model for the size and organization of the photosynthetic antenna is presented. Despite the wide distribution of antennas, photochemistry occurs in the reaction center: RC), which can be separated into two groups distinguishable by the identity of the terminal electron acceptor. These are the Fe-S type or type-I and the quinone-type or type -II RCs. All known anoxygenic phototrophs have
Photosynthesis: How Proteins Control Excitation Energy Transfer: 10.4018/978-1-60566-076-9.ch034: This chapter introduces the theory of optical spectra and excitation energy transfer of light harvesting complexes in photosynthesis. The light energy
Recently, iso-diabolic acid (13,16-dimethyl octacosanedioic acid) has been identified as a major membrane-spanning lipid of subdivisions 1 and 3 of the Acidobacteria, a highly diverse phylum within the Bacteria. This finding pointed to the Acidobacteria as a potential source for the bacterial glycerol dialkyl glycerol tetraethers that occur ubiquitously in peat, soil, lakes, and hot springs. Here, we examined the lipid composition of seven phylogenetically divergent strains of subdivision 4 of the Acidobacteria, a bacterial group that is commonly encountered in soil. Acid hydrolysis of total cell material released iso-diabolic acid derivatives in substantial quantities (11 to 48% of all fatty acids). In contrast to subdivisions 1 and 3 of the Acidobacteria, 6 out of the 7 species of subdivision 4 (excepting "Candidatus Chloracidobacterium thermophilum") contained iso-diabolic acid ether bound to a glycerol in larger fractional abundance than iso-diabolic acid itself. This is in agreement with ...
Erythrobacter longus bchX, bchY, bchZ, ORFQ, pufB, pufA, pufL, pufM genes for chlorophillide reductase subunit, chlorophillide reductase subunit, chlorophillide reductase subunit, hypothetical protein, beta subunit of light-harvesting 1 complex, alpha subunit of light-harvesting 1 complex, L subunit of photosynthetic reaction center, M subunit of photosynthetic reaction center, partial and complete ...
Glycolysis is the process of converting glucose into pyruvate and generating small amounts of ATP (energy) and NADH (reducing power). It is a central pathway that produces important precursor metabolites: six-carbon compounds of glucose-6P and fructose-6P and three-carbon compounds of glycerone-P, glyceraldehyde-3P, glycerate-3P, phosphoenolpyruvate, and pyruvate [MD:M00001]. Acetyl-CoA, another important precursor metabolite, is produced by oxidative decarboxylation of pyruvate [MD:M00307]. When the enzyme genes of this pathway are examined in completely sequenced genomes, the reaction steps of three-carbon compounds from glycerone-P to pyruvate form a conserved core module [MD:M00002], which is found in almost all organisms and which sometimes contains operon structures in bacterial genomes. Gluconeogenesis is a synthesis pathway of glucose from noncarbohydrate precursors. It is essentially a reversal of glycolysis with minor variations of alternative paths [MD:M00003 ...
Rhodobacter capsulatus HelB protein: required for cytochrome c biogenesis; conserved in gram negative bacteria; forms complex with HelA, HelC, and HelD; amino acid sequence in first source
Electron transfer and energy transfer processes are ubiquitous in biology and chemistry and they are important to molecular-electronics and to energy-conversion technologies. The study of molecular electron and energy transport mechanisms from the single-molecule to the cellular/hybrid-device levels allows us to explore transport optimization at different length scales and in different environments (cellular versus solid-state). I give an overview of central themes in this interdisciplinary field and discuss some of my work.. ...
A kind of coumarin-modified gold nanoparticle by the bridge of dsDNA chains was designed and synthesized for sensitive detection of DNase I. The fluorescence of coumarin 343 at emission wavelengths of 491 nm excited at 440 nm was quenched by the gold nanoparticles due to the energy transfer process after the coumarin 343 was connected on the gold nanoparticles by DNA chains. When dsDNA chains were ...
Discover Lifes page about the biology, natural history, ecology, identification and distribution of Colias nastes - Artic Green Sulfur -- Discover Life mobile
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
A dichotomous key that distinguishes the five classes of the gram- negative Proteobacteria. a. Anoxygenic photosynthetic bacteria ----------------------- 2 b.
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78069 avhandlingar från svenska högskolor och universitet. Avhandling: Svenska Arbetsgivareföreningen och arbetskraftsinvandringen 1945-1972.
A DNA-directed coupled transcription-translation system has been developed in cell-free extracts from the facultative phototroph, Rhodopseudomonas sphaeroides. The in vitro protein synthesizing system was active when prepared from either aerobically or anaerobically grown cells. Optimal activity was dependent upon use of extracts prepared freshly from early exponential phase cells, the method of cell breakage, and the length of preincubation of the extract (S-30), as well as the concentrations of S-30, DNA template, and cations. The cell-free system was used to study the physical and biochemical characterization of an enzymatically active form II ribulose-1,5-bisphosphate carboxylase which was synthesized and assembled in vitro from cloned R. sphaeroides DNA. The predominant enzymatically active oligomeric form of the in vitro synthesized and assembled RuBP carboxylase was a tetramer-hexamer, and assembly of the monomeric subunits to form active enzyme was dependent on the presence of a minimum ...
Biochemical Physiology of a Respiration-Deficient Mutant of the Photosynthetic Bacterium Rhodopseudomonas capsulata: Nonsulfur purple photosynthetic bacteria ge
A photochemical reactor is divided into a first section suitable for containing a volume of fluid to be reacted and a second section having at least one light transmitting wall. A porous, high area, fiber webbing is mounted within the reactor so that at least a portion of the webbing is immersed in the fluid. The webbing is moved within the reactor so that the webbing is sequentially immersed in the fluid contained in the first reactor section and then moved to the second reactor section whereat the fluid attached to the webbing is exposed to light transmitted through the light transmitting wall.
Subject: Photosynthesis and function of pigment-protein complexes. 1. Chlorophyll f-photosynthesis. The photosynthetic reactions take place within the membrane-bound pigment-protein complexes, light harvesting systems and reaction centre systems. Chlorophylls are the essential pigments for photosynthesis. The function of chlorophyll fin photosynthetic reactions is uncertain. The approaches for this proposed project will include - methods for isolation of photosynthetic membranes and pigment-protein complexes by centrifugation, spectroscopic methods for probing the energy transfer pathways and liquid chromatographic methods for determining pigment compositions.. 2. Biosynthesis of chlorophyll f. The studies on photophysiological and biochemical properties of red-shifted chlorophylls will advance our understanding of their ecological and evolutionary significance. The recently discovered chlorophyll f has the most red-shifted absorption maximum that is involved in oxygenic photosynthesis. Its ...
Hypocholesterolemic Response to Karaya Saponin and Rhodobacter capsulatus in Broiler Chickens Broilers;Cholesterol;Karaya Saponin;Rhodobacter capsulatus;Triglycerides; Dietary karaya saponin and Rhodobacter capsulatus (R. capsulatus) are known to have hypocholesterolemic actions, as reported in our previous studies. This study examined possible synergistic hypocholesterolemic effects of karaya saponin and R. capsulatus in broilers. A total of 150 broilers were allocated into 10 treatments: control, saponin 25 mg, saponin 50 mg, saponin 75 mg, saponin 25 mg+R. capsulatus 0.2 g, saponin 25 mg+R. capsulatus 0.4 g, saponin 50 mg+R. capsulatus 0.2 g, saponin 50 mg+R. capsulatus 0.4 g, saponin 75 mg+R. capsulatus 0.2 g and saponin 75 mg+R. capsulatus 0.4 g. Feed intake and feed efficiency were improved when karaya saponin and R. capsulatus were synergistically supplemented in the diet. Combinations of karaya saponin, especially supplementation of karaya saponin 50 mg+R. capsulatus 0.4 g were shown to have

Bacteriochlorophyll - WikipediaBacteriochlorophyll - Wikipedia

Different groups contain different types of bacteriochlorophyll: Bacteriochlorophylls a, b, and g are bacteriochlorins, meaning ... Groups that contain bacteriochlorophyll conduct photosynthesis, but do not produce oxygen. They use wavelengths of light not ... Bacteriochlorophylls are photosynthetic pigments that occur in various phototrophic bacteria. They were discovered by C. B. van ... 2012-08-10). "Bacteriochlorophyll f: properties of chlorosomes containing the "forbidden chlorophyll"". Front. Microbiol. 3: ...
more infohttps://en.wikipedia.org/wiki/Bacteriochlorophyll

Bacteriochlorophyll aggregates in positively charged micellesBacteriochlorophyll aggregates in positively charged micelles

Bacteriochlorophyll a forms two complexes: One is blue-shifted and has excitonically coupled Qy transitions. The second one is ... Gottstein, J.; Scherz, A. und Scheer, Hugo (1993): Bacteriochlorophyll aggregates in positively charged micelles. In: ... Micellar complexes were prepared from bacteriochlorophyll a and bacteriopheophytin a with the cationic detergents, ...
more infohttps://epub.ub.uni-muenchen.de/2385/index.html

Patent US5173504 - Bacteriochlorophyll-a derivatives useful in photodynamic therapy - Google PatentsPatent US5173504 - Bacteriochlorophyll-a derivatives useful in photodynamic therapy - Google Patents

6. The composition of claim 5 wherein the compound of formula 1 is bacteriochlorophyll-a or bacteriochlorophyll-b. ... In bacteriochlorophyll-b, which can also readily be obtained from bacterial sources, R2 in the B ring is vinyl rather than ... Bacteriochlorophyll-a, obtained at ,90% purity from Porphyrin Products (Logan, UT) was dissolved at a concentration of 5 mg/ml ... The other embodiments of R2 can easily be prepared starting with bacteriochlorophyll-b by standard hydration of the vinyl group ...
more infohttp://www.google.com/patents/US5173504?dq=6246862

Bacteriochlorophyll | definition of bacteriochlorophyll by Medical dictionaryBacteriochlorophyll | definition of bacteriochlorophyll by Medical dictionary

What is bacteriochlorophyll? Meaning of bacteriochlorophyll medical term. What does bacteriochlorophyll mean? ... Looking for online definition of bacteriochlorophyll in the Medical Dictionary? bacteriochlorophyll explanation free. ... bacteriochlorophyll. (băk-tîr′ē-ō-klôr′ə-fĭl). n.. Any of a group of pigments, especially one having the formula C55H74MgN4O6, ... bacteriochlorophyll. Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia. bac·te·ri·o·chlo·ro·phyll. (bak-tērē-ō- ...
more infohttp://medical-dictionary.thefreedictionary.com/bacteriochlorophyll

Terminal steps of bacteriochlorophyll a phytol formation in purple photosynthetic bacteria.  - PubMed - NCBITerminal steps of bacteriochlorophyll a phytol formation in purple photosynthetic bacteria. - PubMed - NCBI

Terminal steps of bacteriochlorophyll a phytol formation in purple photosynthetic bacteria.. Shioi Y, Sasa T. ... Four chemically different bacteriochlorophylls (Bchls) a esterified with geranylgeraniol, dihydrogeranylgeraniol, ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/6609153

Third order nonlinear optical properties of stacked bacteriochlorophylls in bacterial photosynthetic light-harvesting proteins ...Third order nonlinear optical properties of stacked bacteriochlorophylls in bacterial photosynthetic light-harvesting proteins ...

... and now in bacteriochlorophyll a (BChla) arrays of light harvesting (LH) proteins. Compared to monomeric BChla in a ... of bacteriochlorophyll in vivo was observed which provides an alternative method for probing excited state dynamics and a ... Third order nonlinear optical properties of stacked bacteriochlorophylls in bacterial photosynthetic light-harvesting proteins ... and now in bacteriochlorophyll a (BChla) arrays of light harvesting (LH) proteins. Compared to monomeric BChla in a ...
more infohttps://digital.library.unt.edu/ark:/67531/metadc695372/

EPR, ENDOR, and TRIPLE resonance studies of modified bacteriochlorophyll cation radicalsEPR, ENDOR, and TRIPLE resonance studies of modified bacteriochlorophyll cation radicals

Bacteriochlorophyll ; EPR spectrometry ; Electron nuclear double resonance ; ENDOR spectrometry ; Triple resonance ; Organic ... A series of substituted bacteriochlorophyll molecules, all used in reconstitution experiments of reaction centers of ... and TRIPLE resonance studies of modified bacteriochlorophyll cation radicals. In: Journal of Physical Chemistry, Vol. 98, No. 1 ...
more infohttps://epub.ub.uni-muenchen.de/2456/

Photophysical consequences of coupling bacteriochlorophyll a with serine and its resulting solubility in water.  - PubMed - NCBIPhotophysical consequences of coupling bacteriochlorophyll a with serine and its resulting solubility in water. - PubMed - NCBI

Photophysical consequences of coupling bacteriochlorophyll a with serine and its resulting solubility in water.. Eichwurzel I1 ... We investigated the dependence on solvents of optical absorption and emission of the bacteriochlorophyll a-serine (BChl-ser), a ... water soluble bacteriochlorophyll (BChl) derivative. Comparison between the experimental data and those collected for BChl in ...
more infohttps://www.ncbi.nlm.nih.gov/pubmed/10946574

De novo synthesis and properties of analogues of the self-assembling chlorosomal bacteriochlorophylls - New Journal of...De novo synthesis and properties of analogues of the self-assembling chlorosomal bacteriochlorophylls - New Journal of...

bacteriochlorophylls. . The synthesis here of Zn(II) 3-(1-hydroxyethyl)-10-aryl-131-oxophorbines (the aryl group. consists of ... Natural photosynthetic pigments bacteriochlorophyllsc, d and e in green bacteria undergo self-assembly. to create an organized ... of the new chlorosomal bacteriochlorophyll mimics reveal a bathochromic shift of ∼1800 cm−1 of the Qy band in nonpolar solvent ... De novo synthesis and properties of analogues of the self-assembling chlorosomal bacteriochlorophylls O. Mass, D. R. ...
more infohttp://pubs.rsc.org/en/Content/ArticleLanding/2011/NJ/c1nj20611g

RCSB PDB - 3OZ2: Crystal structure of a geranylgeranyl bacteriochlorophyll reductase-like (Ta0516) from Thermoplasma...RCSB PDB - 3OZ2: Crystal structure of a geranylgeranyl bacteriochlorophyll reductase-like (Ta0516) from Thermoplasma...

Crystal structure of a geranylgeranyl bacteriochlorophyll reductase-like (Ta0516) from Thermoplasma acidophilum at 1.60 A ... Crystal structure of a geranylgeranyl bacteriochlorophyll reductase-like (Ta0516) from Thermoplasma acidophilum at 1.60 A ...
more infohttps://www.rcsb.org/structure/3OZ2

Transient Raman Spectroscopy
of Isotope-Substituted Species
of Bacteriochlorophyll a,
Bacteriopheophytin a And
Chlorophyll a:...Transient Raman Spectroscopy of Isotope-Substituted Species of Bacteriochlorophyll a, Bacteriopheophytin a And Chlorophyll a:...

The S0, T1 and S1 Raman spectra of bacteriochlorophyll a, bacteriopheophytin a and chlorophyll a were recorded for the species ... Transient Raman Spectroscopy of Isotope-Substituted Species of Bacteriochlorophyll a, Bacteriopheophytin a And Chlorophyll a: ...
more infohttps://www.hindawi.com/journals/lc/1999/012721/abs/

Time series observation based InfraRed Epifluorescence Microscopic (TIREM) approach for accurate enumeration of...Time series observation based InfraRed Epifluorescence Microscopic (TIREM) approach for accurate enumeration of...

Bacteriochlorophyll a Containing Microbes (BCM) are a unique group of microorganisms in the marine environment. Accurate ... Bacteriochlorophylls / metabolism*. Image Processing, Computer-Assisted / methods*. Infrared Rays*. Microscopy, Fluorescence / ... Bacteriochlorophyll a Containing Microbes (BCM) are a unique group of microorganisms in the marine environment. Accurate ... approach for accurate enumeration of bacteriochlorophyll-containing microbes in marine environments. ...
more infohttp://www.biomedsearch.com/nih/Time-series-observation-based-InfraRed/16213618.html

Selective and Safe PDT in the Monkey Using WST11, a Water Soluble Bacteriochlorophyll Derivate | IOVS | ARVO JournalsSelective and Safe PDT in the Monkey Using WST11, a Water Soluble Bacteriochlorophyll Derivate | IOVS | ARVO Journals

Selective and Safe PDT in the Monkey Using WST11, a Water Soluble Bacteriochlorophyll Derivate ... Selective and Safe PDT in the Monkey Using WST11, a Water Soluble Bacteriochlorophyll Derivate ... a Water Soluble Bacteriochlorophyll Derivate. Invest. Ophthalmol. Vis. Sci. 2007;48(13):3431. ...
more infohttps://iovs.arvojournals.org/article.aspx?articleid=2386136

5lcb » Bacteriochlorophyll c-binding protein, complex with chlorophyll - Orientations of Proteins in Membranes (OPM) database5lcb » Bacteriochlorophyll c-binding protein, complex with chlorophyll - Orientations of Proteins in Membranes (OPM) database

5lcb » Bacteriochlorophyll c-binding protein, complex with chlorophyll. 3D view in Jmol or Webmol Download Coordinates Topology ... Comments on 5lcb » Bacteriochlorophyll c-binding protein, complex with chlorophyll. The protein is actually located in ...
more infohttp://opm.phar.umich.edu/protein.php?pdbid=5lcb

Bacteriochlorophyll and community structure of aerobic anoxygenic phototrophic bacteria in a particle-rich estuary - Semantic...Bacteriochlorophyll and community structure of aerobic anoxygenic phototrophic bacteria in a particle-rich estuary - Semantic...

... bacteriochlorophyll a (BChl a) and the diversity of pufM and 16S ribosomal RNA (rRNA) genes in the Chesapeake Bay. ... Bacteriochlorophyll and community structure of aerobic anoxygenic phototrophic bacteria in a particle-rich estuary. @article{ ... Abundance, depth distribution, and composition of aerobic bacteriochlorophyll a-producing bacteria in four basins of the ... Cottrell2010BacteriochlorophyllAC, title={Bacteriochlorophyll and community structure of aerobic anoxygenic phototrophic ...
more infohttps://www.semanticscholar.org/paper/Bacteriochlorophyll-and-community-structure-of-in-a-Cottrell-Ras/52fae5562700c9eb284504ba1ccd2ca3ece89bb6

Contribution of bacteriochlorophyll conformation to the distribution of site-energies in the FMO proteinContribution of bacteriochlorophyll conformation to the distribution of site-energies in the FMO protein

MacGowan S.A, Senge M.O, Contribution of bacteriochlorophyll conformation to the distribution of site-energies in the FMO ... Contribution of bacteriochlorophyll conformation to the distribution of site-energies in the FMO protein. ... The structural data for the Fenna-Matthews-Olson (FMO) protein indicate that the bacteriochlorophylls (BChls) display a ...
more infohttp://www.tara.tcd.ie/handle/2262/78919

Characterization of novel bacteriochlorophyll-<em>a</em>-containing red filaments from alkaline hot springs in Yellowstone...Characterization of novel bacteriochlorophyll-<em>a</em>-containing red filaments from alkaline hot springs in Yellowstone...

Characterization of novel bacteriochlorophyll-a-containing red filaments from alkaline hot springs in Yellowstone National Park ... Filaments contained densely layered intracellular membranes and bacteriochlorophyll a. The in vivo absorption spectrum of the ... red layer filaments was distinct from other phototrophs, with unusual bacteriochlorophyll a signature peaks in the near- ...
more infohttp://www.rcn.montana.edu/Publications/Detail.aspx?id=49

Chlorophylls And Bacteriochlorophylls: Biochemistry, Biophysics, Functions And Applications 2006Chlorophylls And Bacteriochlorophylls: Biochemistry, Biophysics, Functions And Applications 2006

... * Chlorophylls And ... An Chlorophylls and Bacteriochlorophylls: Biochemistry, Biophysics, Functions is labelled while believing your Site. Your ... Some see also yet sent out of the Chlorophylls and Bacteriochlorophylls:. exactly, cells, cells and teeming tanks can start ... The Chlorophylls and Bacteriochlorophylls: Biochemistry, Biophysics, Functions and Applications 2006, shooting top-ranking book ...
more infohttp://robertpatrick.org/RP/ebook/Chlorophylls-and-Bacteriochlorophylls%3A-Biochemistry%2C-Biophysics%2C-Functions-and-Applications-2006/

Chlorophylls and BacteriochlorophyllsChlorophylls and Bacteriochlorophylls

... bacteriochlorophylls and their protein complexes. Also discussed is progress on the applications of chlorophylls as ... www.MOLUNA.de Chlorophylls and Bacteriochlorophylls [4093768] - The first dedicated new work since 1991, this book reviews ... Bacteriochlorophyll Protein Maquettes; D. Noy et al. 25. Molecular Assembly of Bacteriochlorophyll Complexes Using Synthetic ... Bacteriochlorophyll Sensitizers in Photodynamic Therapy; A.S. Brandis et al. 34. Metal-Substituted Bacteriochlorophylls: Novel ...
more infohttps://www.moluna.de/buch/4093768-chlorophylls+and+bacteriochlorophylls/

Bacteriochlorophyll | Open Access articles | Open Access journals | Conference Proceedings | Editors | Authors | Reviewers |...Bacteriochlorophyll | Open Access articles | Open Access journals | Conference Proceedings | Editors | Authors | Reviewers |...

Bacteriochlorophyll. File:Bacteriochlorophyll a.mol.svg Bacteriochlorophyll a. R is phytyl or geranylgeranyl. ... Bacteriochlorophyll b Purple bacteria 835-850, 1020-1040 Bacteriochlorophyll c Green sulfur bacteria, Chloroflexi, C. ... Bacteriochlorophyll e Green sulfur bacteria 719-726 Bacteriochlorophyll f Green sulfur bacteria (currently found only through ... Bacteriochlorophyll g Heliobacteria 670, 788 Bacteriochlorophylls a, b, and g are bacteriochlorins, meaning their molecules ...
more infohttp://research.omicsgroup.org/index.php/Bacteriochlorophyll

Biosynthesis of (bacterio)chlorophylls: ATP-dependent transient subunit interaction and electron transfer of dark operative...Biosynthesis of (bacterio)chlorophylls: ATP-dependent transient subunit interaction and electron transfer of dark operative...

... the last common precursor of chlorophyll a and bacteriochlorophyll a biosynthesis. During ATP-dependent DPOR catalysis the ... Biosynthesis of (bacterio)chlorophylls: ATP-dependent transient subunit interaction and electron transfer of dark operative ... article{Brcker2010BiosynthesisO, title={Biosynthesis of (bacterio)chlorophylls: ATP-dependent transient subunit interaction and ... the last common precursor of chlorophyll a and bacteriochlorophyll a biosynthesis. During ATP-dependent DPOR catalysis the ...
more infohttps://www.semanticscholar.org/paper/Biosynthesis-of-%28bacterio%29chlorophylls%3A-transient-Br%C3%B6cker-W%C3%A4tzlich/10791e6c0be9fd388ab4d5b1354e8000f944488b

Taxonomy and evolution of bacteriochlorophyll a -containing members of the OM60/NOR5 clade of marine gammaproteobacteria:...Taxonomy and evolution of bacteriochlorophyll a -containing members of the OM60/NOR5 clade of marine gammaproteobacteria:...

An affiliation of the characterized bacteriochlorophyll a-containing strains to different genera was indicated by significant ... All analyzed strains contained bacteriochlorophyll a and spirilloxanthin as photosynthetic pigments. Besides a detailed ... Spring S, Riedel T: Mixotrophic growth of bacteriochlorophyll a-containing members of the OM60/NOR5 clade of marine ... The concentrations of bacteriopheophytin a, bacteriochlorophyll a and spirilloxanthin in the acetone/methanol extracts were ...
more infohttps://bmcmicrobiol.biomedcentral.com/articles/10.1186/1471-2180-13-118

Erythrobacter longus gen. nov., sp. nov., an Aerobic Bacterium Which Contains Bacteriochlorophyll a | Microbiology SocietyErythrobacter longus gen. nov., sp. nov., an Aerobic Bacterium Which Contains Bacteriochlorophyll a | Microbiology Society

Although these organisms did not grow phototrophically, the presence of bacteriochlorophyll a indicated that they are most ... Four orange-pigmented and seven pink-pigmented strains of bacteria which contained bacteriochlorophyll a were isolated from ... nov., an Aerobic Bacterium Which Contains Bacteriochlorophyll a * TSUNEO SHIBA and USIO SIMIDU ... Four orange-pigmented and seven pink-pigmented strains of bacteria which contained bacteriochlorophyll a were isolated from ...
more infohttps://www.microbiologyresearch.org/content/journal/ijsem/10.1099/00207713-32-2-211

Microbiology Society Journals | Blastomonas aquatica sp. nov., a bacteriochlorophyll-containing bacterium isolated from lake...Microbiology Society Journals | Blastomonas aquatica sp. nov., a bacteriochlorophyll-containing bacterium isolated from lake...

Bacteriochlorophyll a was produced by the isolates. The predominant cellular fatty acids were C16 : 1, C17 : 1 and C18 : 1 ... nov., a bacteriochlorophyll-containing bacterium isolated from lake water MyBook is a cheap paperback edition of the original ... Bacteriochlorophyll a was produced by the isolates. The predominant cellular fatty acids were C16 : 1, C17 : 1 and C18 : 1 ... nov., a bacteriochlorophyll-containing bacterium isolated from lake water, Page 1 of 1 ...
more infohttp://ijs.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.000153
  • Four chemically different bacteriochlorophylls (Bchls) a esterified with geranylgeraniol, dihydrogeranylgeraniol, tetrahydrogeranylgeraniol, and phytol have been detected by high-pressure liquid chromatography in cell extracts from Rhodopseudomonas sphaeroides and Chromatium vinosum. (nih.gov)
  • The structural data for the Fenna-Matthews-Olson (FMO) protein indicate that the bacteriochlorophylls (BChls) display a significant degree of conformational heterogeneity of their peripheral substituents and the protein-induced nonplanar skeletal deformations of the tetrapyrrole macrocycle. (tcd.ie)
  • Enhancement of the nonresonant second order molecular hyperpolarizabilities {gamma} were observed in stacked macrocyclic molecular systems, previously in a {micro}-oxo silicon phthalocyanine (SiPcO) monomer, dimer and trimer series, and now in bacteriochlorophyll a (BChla) arrays of light harvesting (LH) proteins. (unt.edu)
  • Strain Ivo14 T was characterized using a polyphasic approach and compared with other red-pigmented members of the OM60/NOR5 clade, including Congregibacter litoralis DSM 17192 T , Haliea rubra DSM 19751 T and Chromatocurvus halotolerans DSM 23344 T . All analyzed strains contained bacteriochlorophyll a and spirilloxanthin as photosynthetic pigments. (biomedcentral.com)
  • More specifically, the invention is directed to methods of in vivo photodynamic therapy and diagnosis and in vitro sterilization using bacteriochlorophyll-a and its related compounds. (google.com)
  • for the S{sub 1} excited state of relative to S{sub 0} of bacteriochlorophyll in vivo was observed which provides an alternative method for probing excited state dynamics and a potential application for molecular switching. (unt.edu)
  • The in vivo absorption spectrum of the red layer filaments was distinct from other phototrophs, with unusual bacteriochlorophyll a signature peaks in the near-infrared (IR) region (807 nm and 911 nm). (montana.edu)
  • The UV-Vis absorption spectra of the new chlorosomal bacteriochlorophyll mimics reveal a bathochromic shift of ∼1800 cm −1 of the Q y band in nonpolar solvent , indicating extensive assembly in solution. (rsc.org)
  • The first dedicated new work since 1991, this book reviews recent progress and current studies in the chemistry, metabolism and spectroscopy of chlorophylls, bacteriochlorophylls and their protein complexes. (moluna.de)
  • Time series observation based InfraRed Epifluorescence Microscopic (TIREM) approach for accurate enumeration of bacteriochlorophyll-containing microbes in marine environments. (biomedsearch.com)