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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 26 for “"photosynthetic bacteria"”.
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Light-Induced Electron Transport in Photosynthetic Bacteria
Made available in DSpace on 2014-12-11T00:00:12Z (GMT). No. of bitstreams: 1 7114746.pdf: 3241335 bytes, checksum: d037015607c8fa36b6a74f67404091d9 (MD5) Previous issue date: 1970
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Computational investigation of light harvesting in purple photosynthetic bacteria
Purple photosynthetic bacteria achieve remarkably high light harvesting efficiency, thus reconciling multiple competing processes in the chromatophore. The first step in photosynthesis is the capture and transport of light energy in the form of short-lived electronic excitation called excitons. …
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Optimizing electrogenic activity from photosynthetic bacteria in bioelectrochemical systems
… allowed simultaneous comparison of photosynthetic efficiency to EET in Synechocystis. Non-photochemical quenching (NPQ) was investigated as a limiting factor in biophotovoltaic efficiency and was found to be reduced in the PBS antenna-truncated mutants. Fluorescence and …
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A Comparative Study of Reaction-Center Components of Photosynthetic Bacteria
Made available in DSpace on 2014-12-11T00:00:14Z (GMT). No. of bitstreams: 1 7317430.pdf: 6001387 bytes, checksum: 4590e880451de2734b1249e0797f75b0 (MD5) Previous issue date: 1972
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Ex situ biodegradation of explosives using photosynthetic bacteria and biological granular activated carbon systems
Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2014-01-23T14:50:37Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Millerick_Kayleigh.pdf: 3969612 bytes, checksum: a4634da2cbebe77fa318c92bf7da43b9 (MD5)
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Biophysical investigation of electron transfer between high-potential hemes in c subunit and special pair of reaction center protein of photosynthetic bacteria Rhodopseudomonas viridis
Bacterium Rhodopseudomonas viridis has four c-type cytochromes integrated to a single protein subunit of the reaction center complex. Two of them are high redox midpoint potential hemes (cyt-c559; Em = 380 mV and cyt-c556; Em = 310 mV) and other two are low midpoint potential hemes (cyt-c552; Em = …
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Electron Transfer Reactions of the Ubiquinol: Cytochrome C-2 Oxidoreductase of Rhodopseudomonas Sphaeroides
… c(,2) oxidoreductase (b-c(,1) complex) of the photosynthetic bacteria Rps. sphaeroides have been investigated through the use of optical spectroscopy and chemical inhibitors of the protein complex.
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Transition metal bis(porphyrin) complexes
… structural similarities to the Special Pair in photosynthetic bacteria. The work presented here covers the first transition metal bis(porphyrin) complexes. In addition, the first uranium(V) porphyrin complexes are described.
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Differential inhibition of the plastoquinone reductase activity by weak organic acids and its relationship to the bicarbonate effect in spinach thylakoids
… side of photosystem II (PS II), but not of photosynthetic bacteria, has been known for a long time. In formate treated thylakoids, the (Q$\sb{\rm A}\sp-$) decays show a larger slowing down after the second and subsequent flashes than after the first flash. This suggests a blockage of …
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The Effects of Chemical Modification Upon Herbicide Binding in Thylakoid Membranes of Spinacia Oleracea (Spinach) and Amaranthus Hybridus (Pigweed), and The Photochemical Reaction Center of Rhodobacter Sphaeroides R26
… A}$ and Q$\sb{\rm B}$ in both higher plants and photosynthetic bacteria in an analogous manner to that seen for the classic Photosystem II inhibitors such as diuron and atrazine. It does not bind to the same binding domain as these inhibitors. It does not bind covalently, suggesting that the …
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Effects of amino acid residue substitutions on bicarbonate function in the plastoquinone reductase in cyanobacteria
… while no such inhibition has been observed in photosynthetic bacteria. It was observed in this study that a more than four fold stimulation of the Hill reaction by 5 mM bicarbonate and a significant reversible slowing of oxidation of Q$\sb{\rm A}\sp{-}$ in bicarbonate-depleted cells and …
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Irradiance source for exoplanet atmospheric spectra
… of exoplanet atmospheric responses to photosynthetic bacteria under simulations of the irradiance conditions of a planet’s host star. The goal of this project was to design and construct a second-generation apparatus at Eastern Michigan University. The team focused on an irradiation …
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The application of photosynthetic materials and architectures to solar cells
Photosynthetic approaches to redesigning photovoltaics (PV) offer an attractive route towards achieving high-efficiency, low-cost solar energy transduction. This thesis explores two routes toward this end: the direct integration of photosynthetic structures into solid-state devices and the …
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Bridging molecular and systems scales in membrane biology
… (Chapter 4) on molecular diffusion in photosynthetic processes. The next two studies are focused on using non-equilibrium MD methods such as steered molecular dynamics (SMD), coupled with umbrella sampling (US), and Alchemical Free-Energy Perturbation (Alchemical FEP) to study how the …
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Computational investigations into two biological processes: membrane reshaping by light-harvesting proteins in the chromatophores of purple bacteria, and oligomerization and pore formation by the Hepatitis C viroporin p7
… proteins in the chromatophores of purple photosynthetic bacteria, and (2) the structure and function of the Hepatitis C viroporin p7. Purple photosynthetic bacteria form membranous pseudo-organelles called chromatophores which house the photosynthetic machinery. These chromatophore …
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Genetic and Physiological Basis of Carotenoid Accumulation in the Cavefish Astyanax mexicanus
… pigments synthesized by plants, algae, and photosynthetic bacteria. For animals, which cannot synthesize these compounds de novo, carotenoids must be obtained through diet. Once ingested, carotenoids are metabolized and stored, playing pivotal roles in biological processes. Carotenoid …
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Characterization of Metal Binding Peptides Derived from Copper Trafficking Proteins
… the result of the mass generation of oxygen from photosynthetic bacteria roughly 2.7 billion years ago. While it proved to be poisonous to early life on Earth, those that met the evolutionary challenge utilized the metal as a cofactor in enzymes to perform biochemically significant functions, …
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Improved plastid transformation in Marchantia polymorpha
… and algae. They are descended from free-living photosynthetic bacteria which were engulfed by early eukaryotes ~1.5 billion years ago. Nearly all plastids retain a small genome separate from the nuclear genome of the plants in which they reside, which is termed the plastome (plastid genome). …
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Structure and Function of a Cytochrome P450 From Synechocystis Sp. PCC 6803
… of cytochrome P450s in novel econiches. Cyanobacteria, photosynthetic bacteria, are thought of as the ancestors of chloroplasts. They produced oxygen in the primitive atmosphere, representing an interesting, evolutionarily ""old"" bacterial group. Over 60 cytochrome P450 or cytochrome …
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