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Dissertations / Theses on the topic 'Shewanellae'

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Published: 11 March 2023
Last updated: 31 July 2025

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1

Black, Ann Charlotte. "Flavocytochrome c from Shewanella putrefaciens." Thesis, University of Edinburgh, 1991. http://hdl.handle.net/1842/10823.

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Flavocytochrome c, a multihaem cytochrome from <i>Shewanella putrefaciens</i> induced under anaerobic conditions, was studied to investigate the physiological function of this protein. These studies comprised two facets: the cloning and sequence analysis of the structural gene for flavocytochrome c and a biochemical study of the fumarate reductase activity associated with flavocytochrome c. A <i>S. putrefaciens</i> genomic library was constructed in the expression vector pEX3. This library was screened in <i>E. coli</i> MM294 by colony hybridization of induced recombinants with antibody raised
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2

Morris, Christopher John. "C-type cytochromes of Shewanella putrefaciens." Thesis, University of Edinburgh, 1987. http://hdl.handle.net/1842/11195.

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3

Atanasiu, Doina. "Respiratory enzymes from Shewanella MR-1." Thesis, University of Edinburgh, 2001. http://hdl.handle.net/1842/11653.

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<i>Shewanella </i>MR-1 is a Gram-negative, facultatively anaerobic bacterium isolated from Lake Oneida, New York. It can couple its anaerobic growth to the reduction of a wide variety of compounds such as nitrate, nitrite, TMAO, DMSO, fumarate, manganese(IV) and iron(III) oxides, sulfite and thiosulfate. Analysis of the genome sequence reveals the presence of a large number of respiratory enzymes. Three of these proteins were selected for further study: a decaheme cytochrome <i>c</i>, a heptaheme cytpchrome <i>c </i>and a flavoprotein. Decaheme 129 (Cyc129) is 37% similar to MtrC, a decaheme p
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4

Rothery, Emma L. "Mechanistic studies on multiheme cytochromes from Shewanella." Thesis, University of Edinburgh, 2004. http://hdl.handle.net/1842/14338.

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Fumarate reduction in <i>Shewanella </i>is catalysed by a fumarate reductase known as flavocytochrome <i>c<sub>3</sub></i> (Fcc<sub>3</sub>). This enzyme consists of three domains: a cytochrome domain containing four <i>c</i>-type heme groups; a flavin domain containing a non-covalently bound FAD; and a mobile clamp domain. Fumarate is saccinate by hydride transfer from the flavin N5 and protonation by the active site acid, Arg402. Access of substrate to the active site in Fcc<sub>3</sub> was believed to be controlled by movement of the clamp domain. To test this assumption, site-directed muta
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5

Gambari, Cyril. "Biogenèse de la pellicule chez Shewanella oneidensis." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0218/document.

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La bactérie aquatique Shewanella oneidensis est capable, en condition statique et en présence d'oxygène, de former un biofilm à l'interface air-liquide, appelé pellicule. Mon travail a porté sur la biogenèse de la pellicule.Il a été montré dans le groupe que le régulateur de réponse du système chimiotactique, la protéine CheY3, était impliqué dans la biogenèse de la pellicule. Cette protéine est essentielle dans les étapes précoces et tardives de sa formation alors que son partenaire habituel, CheA3, semble ne jouer un rôle que dans les étapes tardives. Mon travail s'est focalisé sur la recher
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6

Zhang, Mengni. "Dissimilatory iron reduction: insights from the interaction between Shewanella oneidensis MR-1 and ferric iron (oxy)(hydr)oxide mineral surfaces." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37129.

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Dissimilatory iron reduction (DIR) is significant to the biogeochemical cycling of iron, carbon and other elements, and may be applied to bioremediation of organic pollutants, toxic metals, and radionuclides; however, the mechanism(s) of DIR and factors controlling its kinetics are still unclear. To provide insights into these questions, the interaction between a common dissimilatory iron reducing bacterium (DIRB)was studied, Shewanella oneidensis MR-1, and ferric iron (Fe(III)) (oxy)(hydr)oxide mineral surfaces. Firstly, atomic force microscopy was used to study how S. oneidensis MR-1 dissolv
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7

Moule, Anne Louise. "The cell envelope of Alteromonas putrefaciens (Shewanella putrefaciens)." Thesis, University of Hull, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314672.

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8

Davies, Jonathan A. "Characterisation of the reversible formate dehydrogenases of Shewanella." Thesis, University of East Anglia, 2017. https://ueaeprints.uea.ac.uk/66856/.

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The reversible action of tungsten or molybdenum-containing formate dehydrogenase (FDH) enzymes in reducing CO2 to formate has been proposed for storing renewably produced electricity with concomitant CO2 sequestration. Previous attempts have highlighted the unfeasibility of using purified enzyme systems for biotechnological purposes. In response the possibility of using the exoelectrogenic bacteria Shewanella oneidensis in association with a cathode to drive intracellular CO2 reduction is proposed. Since the native FDH enzymes of S.oneidensis have not been previously studied, this work concern
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9

Bilsland, Morag. "Novel respiratory flavocytochromes of Shewanella oneidensis MR-1." Thesis, University of Edinburgh, 2003. http://hdl.handle.net/1842/10812.

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<i>Shewanella oneidensis</i> MR-1 is a Gram-negative bacterium isolated from anaerobic freshwater lake sediments of Lake Oneida that exhibits remarkable respiratory versatility. In the absence of molecular oxygen, <i>S. oneidensis</i> MR-1 couples anaerobic growth to the reduction of various substrates, including ferric iron (FeIII), thiosulfate (S<sub>2</sub>O<sub>3</sub><sup>2-</sup>), sulfite (SO<sub>3</sub><sup>2-</sup>), trimethylamine <i>N-</i>oxide (TMAO), nitrate (NO<sub>3</sub><sup>-</sup>), nitrite (NO<sub>2</sub><sup>-</sup>) and organic substrates such was fumarate. The metabolic f
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10

Silva, Amanda Lys dos Santos. "Estudos ecogen?micos e bioprospectivos de Shewanella spp." Universidade Federal do Rio Grande do Norte, 2009. http://repositorio.ufrn.br:8080/jspui/handle/123456789/16770.

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Made available in DSpace on 2014-12-17T15:18:11Z (GMT). No. of bitstreams: 1 AmandaLSS.pdf: 2422936 bytes, checksum: d5a0f2bb2f42d87bacd7a1d2c3f5c6bc (MD5) Previous issue date: 2009-03-26<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>Bacteria trom Shewanella and Geobacter ganera are the most studied iron-reducing microorganisms particularly due to their electron transport systems and contribution to some industrial and environmental problems, including steel corrosion, bioenergy and bioremediation of petroleum-impacted sites. The present study was focused in two ways: t
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11

Henriques, Andreia Filipa Pereira. "Caracterização da interação HipAB na Shewanella oneidensis MR1." Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/11775.

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Mestrado em Bioquímica<br>Bacterial resistance is a major issue in research related to environmental and public health, due to the ineffectiveness of antibiotics, resulting from a subpopulation of bacterial cells entering a dormant state. Multiple studies revealed that toxin-antitoxin systems are involved in such bacterial persistence. An example of such a toxin-antitoxin system is the HipAB complex, where HipA, and its cognate antitoxin are intimately related. HipB is very unstable and it is prone to degradation by proteases (e.g. Lon protease), leaving HipA exerting its toxic effect on cells
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12

Revesz, Erika. "Solubility and Stability of Scorodite and Adsorbed and Coprecipitated Arsenical 6-line Ferrihydrite in the Presence of Shewanella putrefaciens CN32 and Shewanella sp. ANA-3." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32185.

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Mining and mineral processing generate a wide range of As-rich minerals, including scorodite (FeAsO4•2H2O), and arsenical ferrihydrite, which are common secondary minerals found in mine tailings. Scorodite and arsenical ferrihydrite are relatively stable under a wide range of physico-chemical conditions which makes them suitable arsenic sinks in mining environments. However, bacteria can reduce these minerals and release arsenic into the aqueous environment. Two dissimilatory iron and arsenic reducing bacteria, Shewanella sp. ANA-3 and Shewanella putrefaciens CN32, were used to investigate the
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13

Fulayfil, Nada Rashid. "Characterization of LuxA of novel strains of the genus Shewanella." FIU Digital Commons, 1994. http://digitalcommons.fiu.edu/etd/3425.

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Bioluminescence is a trait observed among different genera and families of bacteria. In this study part of the luxA gene was characterized from the new MS isolates and compared to luxA of other bacteria. The polymerase chain reaction (PCR) was used to amplify a fragment of the luxA gene of strain MS32 and Vibrio harveyi. These fragments were used as probes in hybridization experiments with luminous and nonluminous bacteria. The results from these experiments suggest that some nonluminous species may possess lux like regions in their chromosomal DNA and that luxA probes can demonstrate species
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14

Wang, Hui. "The physiological diversity of Shewanella oneidensis : a metabolic approach." Thesis, University of Manchester, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.506279.

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Shewanella oneidensis MR-1 is an important model Fe(III)-reducing bacterium due to its unique metabolic flexibility including the ability to reduce a wide range of organic and inorganic substrates. The recent availability of the complete genome sequence for this organism together with the application of cutting edge postgenomic techniques are leading to a detailed understanding of the physiology of this organism under a wide range of environmental conditions. In this thesis, a multidisciplinary approach combining microbiology, electron microscopy, spectroscopy and analytical chemistry has been
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15

Pealing, Sara L. "Flavocytochrome C from Shewanella putrefaciens : a soluble fumarate reductase." Thesis, University of Edinburgh, 1994. http://hdl.handle.net/1842/15615.

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Flavocytochrome <I>c</I> from the Gram-negative bacterium <I>Shewanella</I> <I>putrefaciens</I> is a soluble, periplasmic fumarate reductase induced under anaerobic conditions. In order to study this protein the entire structural gene was cloned and sequenced, along with some surrounding sequence. Analysis of the cloned gene indiciates that flavocytochrome <I>c </I>consists of 571 amino acids preceded by a putative periplasmic signal sequence of 25 amino acids. Flavocytochrome <I>c</I> appears to consist of two domains: -a cytochrome domain consisting of approximately the first 117 amino acids
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16

Bose, Saumyaditya. "Bioreduction of Hematite Nanoparticles by Shewanella oneidensis MR-1." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/30189.

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A dissertation is presented on the bioreduction of hematite (&#945;-Fe2O3) nanoparticles. The study shows that an alternative extracellular electron transfer mechanism other than the classical 'direct-contact' mechanism may be simultaneously employed by Shewanella oneidensis MR-1 during solid-phase metal reduction. This conclusion is supported by analysis of the bioreduction kinetics of hematite nanoparticles coupled with microscopic investigations of cell-mineral interactions. The reduction kinetics of metal-oxide nanoparticles were examined to determine how S. oneidensis utilizes these envi
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17

Hansen, Jhoanne [UNESP]. "Clonagem, expressão e caracterização de duas lipoxigenases de Shewanella woodyi." Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/103881.

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Made available in DSpace on 2014-06-11T19:32:53Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-06-21Bitstream added on 2014-06-13T19:43:43Z : No. of bitstreams: 1 000737473.pdf: 4424353 bytes, checksum: 83d4de348d8c1081e547b22ff3eab4d2 (MD5)<br>Lipoxigenases são enzimas que catalizam a oxido-redução de ácidos graxos poliinsaturados que contém em sua estrutura um ou mais grupos cis 1,4- pentadieno, produzindo hidroperóxidos através da incorporação de um oxigênio molecular. Durante anos a presença de lipoxigenase foi considerada exclusivamente eucariótica, presente em mamíferos, planta
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18

Wade, Roy Jr. "A genetic system for studying uranium reduction by Shewanella putrefaciens." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/25304.

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19

Blakeney, Michael. "Effects of respiratory conditions on cytochrome expression in Shewanella Putrefaciens." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/25374.

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20

Norman, Michael. "Role of cysteine in MtrC-flavin interactions of Shewanella oneidensis." Thesis, University of East Anglia, 2017. https://ueaeprints.uea.ac.uk/69368/.

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Many microorganisms can utilise a wide range of terminal electron acceptors, including solid minerals in the environment. Shewanella oneidensis is a well studied model for extracellular electron transfer with many of its biochemical pathways the subject of investigation. S. oneidensis utilises c-type cytochromes embedded in its outer membrane to link the oxidation of carbon sources to the reduction of extracellular terminal electron acceptors. Although the MtrCAB complex is known to be the primary pathway by which electrons, originating in the reduced menaquinol pool, can be conducted across t
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21

Hill, Anne E. "Characterisation of cytochromes c3 and c5 from Shewanella frigidimarina NCIMB400." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/14066.

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The structural gene encoding cytochrome c<SUB>5</SUB> has been cloned and sequenced, along with some surrounding sequence. The inferred amino acid sequence of the cloned gene, <I>scyA</I>, corresponds to a mature protein of 78 amino acids with a single haem attachment motif situated toward the N-terminal end of the protein; a methionine residue near the C-terminus serves as the sixth haem ligand. The <I>scyA </I>open reading frame contains a 21 amino acid N-terminal extension which is absent in purified cytochrome <I>c<SUB>5</SUB></I>. This sequence conforms to the format of a typical periplas
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22

Hansen, Jhoanne. "Clonagem, expressão e caracterização de duas lipoxigenases de Shewanella woodyi /." Jaboticabal, 2013. http://hdl.handle.net/11449/103881.

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Orientadora: Maria Benincasa Vidotti<br>Co-orientadora: Angeles Manresa<br>Banca: Ana Claudia Barana<br>Banca: Vanildo Luiz Del Bianchi<br>Banca: Mariana Carina Frigieri<br>Banca: Janete Apparecida Desiderio<br>Resumo: Lipoxigenases são enzimas que catalizam a oxido-redução de ácidos graxos poliinsaturados que contém em sua estrutura um ou mais grupos cis 1,4- pentadieno, produzindo hidroperóxidos através da incorporação de um oxigênio molecular. Durante anos a presença de lipoxigenase foi considerada exclusivamente eucariótica, presente em mamíferos, plantas, pequenos invertebrados marinhos e
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23

Shah, Maia Kierann. "Surface interaction characterisation of microbial fuel cell organism Shewanella oneidensis." Thesis, Swansea University, 2011. https://cronfa.swan.ac.uk/Record/cronfa42293.

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In order to develop MFCs to their full potential, the mechanisms by which organisms such as S. oneidensis transfer electrons extracellularly need to be researched and understood, and key to this are the physical and chemical interactions between the cell surface and the surrounding environment, including other cells, minerals and MFC-relevant substrates. The research presented here characterises the physical interactions of anaerobically grown S. oneidensis MRl under varying chemical conditions, using aerobically grown cells in identical experiments for comparison. An array of experimental met
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24

Fennessey, Christine Michelle. "A novel mode of bacterial respiration: iron solubilization prior to electron transfer." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37257.

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Microbial iron respiration contributes significantly to the biogeochemical cycling of metals and may be one of the earliest respiratory processes to have evolved on early earth. Metal-respiring microbes also hold great potential for use in microbial fuel cells for the generation of "green" energy and for remediation of radionuclides in contaminated environments. Despite its significance in global metal cycling processes, the molecular mechanism of Fe(III) respiration has yet to be determined. Unlike many other terminal electron acceptors, Fe(III) is a solid at circumneutral pH and, therefor
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Guinetti-Ortiz, Katia, Alejandra Bocanegra-Jesús, and de la Torre-Del Carpio Andrea Gómez. "Osteomielitis por Shewanella putrefaciens: reporte de caso y revisión de literatura." Medwave, 2016. http://hdl.handle.net/10757/622343.

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Shewanella putrefaciens is a Gram-negative bacillus and marine pathogen that rarely causes disease in humans. We report a case of osteomyelitis by this organism in a 48-year-old male patient, who presented with pain and erythema of the right foot that was initially diagnosed as cellulitis and did not revert despite treatment. He was transferred to Lima where osteomyelitis was diagnosed and started on empirical treatment with partial regression. A biopsy and culture of the compromised area found S. putrefaciens. The infection was treated according to the antibiotic sensitivity profile of the pa
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Field, Sarah J. "Identification and characterisation of bacterial multiheme cytochromes implicated in Fe (III) respiration." Thesis, University of East Anglia, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327449.

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27

Sherwood, Mackenzie A. Firer. "Electron transfer in multiheme cytochromes of Shewanella oneidensis MR-1: CymA and the dissimilatory metal reduction pathway." Thesis, Boston University, 2012. https://hdl.handle.net/2144/32061.

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Thesis (Ph.D.)--Boston University<br>PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>Shewanella oneidensis is a facultative, gram-negative microbe that, in the absence of oxygen, can use a wide variety of terminal electron acceptors including iron, manganese, uranium, nitrite, nitrate, sulfat
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Burns, Justin Lee. "Molecular mechanisms of microbial iron respiration by Shewanella oneidensis MR-1." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/33825.

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Metal-respiring bacteria occupy a central position in a variety of environmentally important processes including the biogeochemical cycling of metals and carbon, biocorrosion of steel surfaces, bioremediation of radionuclide-contaminated aquifers, and electricity generation in microbial fuel cells. Metal-respiring bacteria are presented, however, with a unique physiological challenge: they are required to respire anaerobically on electron acceptors (e.g., Fe(III) oxides, elemental sulfur) that are highly insoluble at circumneutral pH and unable to enter the cell and contact inner membrane-lo
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Haller, Carolyn A. "Dissimilatory FE(III) reduction by Shewanella putrefaciens : biochemical and genetic analysis." Diss., Georgia Institute of Technology, 2002. http://hdl.handle.net/1853/25616.

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Pitts, Katy Elizabeth. "Expression and characterisation of Shewanella oneidensis multihaem cytochromes in Escherichia coli." Thesis, University of East Anglia, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410137.

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31

Ong, Wai, Trang Vu, Klaus Lovendahl, et al. "Comparisons of Shewanella strains based on genome annotations, modeling, and experiments." BioMed Central, 2014. http://hdl.handle.net/10150/610105.

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BACKGROUND:Shewanella is a genus of facultatively anaerobic, Gram-negative bacteria that have highly adaptable metabolism which allows them to thrive in diverse environments. This quality makes them an attractive bacterial target for research in bioremediation and microbial fuel cell applications. Constraint-based modeling is a useful tool for helping researchers gain insights into the metabolic capabilities of these bacteria. However, Shewanella oneidensis MR-1 is the only strain with a genome-scale metabolic model constructed out of 21 sequenced Shewanella strains.RESULTS:In this work, we up
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Gordon, Euan H. J. "The physiological role of a novel flavocytochrome c from Shewanella putrefaciens." Thesis, University of Edinburgh, 1996. http://hdl.handle.net/1842/14921.

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Flavocytochrome <I>c</I> (Fcc) is a novel, soluble periplasmic fumarate reductase from the Gram-negative bacterium <I>Shewanella putrefaciens. </I>A null mutant (<I>Δfcc</I>) which lacked the gene coding for the Fcc was constructed. The resultant strain was devoid of fumarate reductase activity and could not grow on fumarate as the sole terminal electron acceptor. Complementation of this mutation with recombinant Fcc restored the ability to grow anaerobically with fumarate. No other phenotype could be found for the <I>Δfcc</I> strain. This work demonstrates that flavocytochrome <I>c</I> is ess
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Baeza, Lara Nicolás. "Caracterización de las vesículas de membrana de Shewanella vesiculosa M7(T)." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/673929.

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La presente Tesis Doctoral se enmarca en el proyecto CTQ2014-59632-R concedido por el ministerio de economía y competitividad al grupo de investigación. El trabajo se ha centrado en caracterizar las vesículas de membrana (VM) de Shewanella vesiculosa M7T y explorar potenciales aplicaciones. Esta bacteria gramnegativa procedente de la Antártida fue descrita por nuestro grupo y ha sido usada como cepa modelo por la gran cantidad de VM que forma. Actualmente se acepta que las bacterias gramnegativas pueden formar distintos tipos de VM y que existen diferentes mecanismos de vesiculación implicados
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Eubanks, Sean Gilrea. "Development and application of a rapid screening technique for the isolation of selernium reduction-deficient mutants of Shewanella putrefaciens." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/25636.

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Wee, Seng Kew. "Novel pathway for microbial FE(III) reduction: electron shuttling through naturally occurring thiols." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53406.

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The g-proteobacterium Shewanella oneidensis MR-1 reduces a wide range of terminal electron acceptors, including solid Fe(III) oxides. Pathways for Fe(III) oxide reduction by S. oneidensis include non-reductive (organic ligand-promoted) solubilization reactions, and either direct enzymatic, or indirect electron shuttling pathways. Results of the present study expand the spectrum of electron acceptors reduced by S. oneidensis to include the naturally occurring disulfide compounds cystine, oxidized glutathione, dithiodiglycolate, dithoidiproponiate and cystamine. Subsequent electron shuttling
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LE, DEN LE MOAL NADIA. "Conductance-metrie indirecte : detection des gaz bacteriens ; application au suivi des parametres de croissance de shewanella putrefaciens." Paris 11, 1995. http://www.theses.fr/1995PA114848.

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37

Dague, Etienne Block Jean-Claude. "Physico-chimie des interfaces bactérie - solution aqueuse." [S.l.] : [s.n.], 2006. http://www.scd.uhp-nancy.fr/docnum/SCD_T_2006_0226_DAGUE.pdf.

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38

Berger, Julia Warr Laurence Noël. "Hydratation des argiles gonflantes et influence des bactéries." Strasbourg : Université Louis Pasteur, 2008. http://eprints-scd-ulp.u-strasbg.fr:8080/925/01/BERGER_Julia_2008.pdf.

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Dale, Jason Robert. "Cytochrome c maturation and redox homeostasis in uranium-reducing bacterium Shewanella putrefaciens." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19846.

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Microbial metal reduction contributes to biogeochemical cycling, and reductive precipitation provides the basis for bioremediation strategies designed to immobilize radionuclide contaminants present in the subsurface. Facultatively anaerobic ×-proteobacteria of the genus Shewanella are present in many aquatic and terrestrial environments and are capable of respiration on a wide range of compounds as terminal electron acceptor including transition metals, uranium and transuranics. S. putrefaciens is readily cultivated in the laboratory and a genetic system was recently developed to study U(V
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Doherty, Mary K. "Mechanistic characterisation of flavocytochrome c3, the fumarate reductase from Shewanella frigidimarina NCIMB4000." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/13674.

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Wu, Fei. "Novel octaheme cytochrome c tetrathionate reductase (OTR) from Shewanella oneidensis MR-1." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/4725.

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Octa-heme cytochrome c tetrathionate reductase (OTR) from Shewanella oneidensis MR-1 is a periplasmic protein and shows several extraordinary structural features around its active-site heme. OTR has been found able to catalyse the in vitro reduction of tetrathionate, nitrite, hydroxylamine and hydrogen peroxide. However the physiological function of this novel protein remains unknown. The subject of this thesis is the in vitro catalytic mechanism and the in vivo function of OTR. As OTR displays great similarity with bacterial penta-heme cytochrome c nitrite reductase (NrfA) in several aspects,
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Grayer, Samuel Charles. "Studies on the bacterial potassium efflux system Kef in Shewanella denitrificans SdKef." Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:4d392a8a-d80f-49b7-b350-b5a1248e099f.

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The glutathione-gated potassium efflux system (Kef) is a K+/H+ antiporter found in the majority of Gram negative pathogens, which shows potential as a novel antibiotic target. Kef plays a vital role in the protection of bacteria against toxic electrophiles through the regulation of cytoplasmic pH. Kef is inhibited by glutathione (GSH), γ L-glu-L-cys-gly, and activated by glutathione S-conjugates (GSX). Healy et al. have quantified the affinities of GSH and a range of GSX for Shewanella denitrificans Kef (SdKef). GSH was found to have a weak affinity of 900 μM, whereas the strongest GSX, tBuSG,
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43

Theberge, Allison Lindsey. "An Investigation Correlating Bioluminescence and Metal Ruduction Utilizing Shewanella woodyi." University of Dayton / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1555331326931868.

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44

Kawamoto, Jun. "Studies of cold-adaptation mechanism of a psychrotrophic bacterium, Shewanella livingstonensis Ac10." Kyoto University, 2008. http://hdl.handle.net/2433/136582.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第13493号<br>農博第1670号<br>新制||農||951(附属図書館)<br>学位論文||H20||N4318(農学部図書室)<br>UT51-2007-T869<br>京都大学大学院農学研究科応用生命科学専攻<br>(主査)教授 江﨑 信芳, 教授 清水 昌, 教授 阪井 康能<br>学位規則第4条第1項該当
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SANTOS, Rogério William. "Isolamento e Caracterização de Cepas Shewanella Sp. Do Cultivo Heterotrófico de Litopenaeus Vannamei (Boone, 1931)." Universidade Federal de Pernambuco, 2014. https://repositorio.ufpe.br/handle/123456789/15667.

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Submitted by Haroudo Xavier Filho (haroudo.xavierfo@ufpe.br) on 2016-03-04T16:25:51Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Roger Dissertação Mestrado 2014_ versão Final biblioteca_ Entregue_.pdf: 1359994 bytes, checksum: ce3bbcf3906e6cb72bdfea9a7b7e7d06 (MD5)<br>Made available in DSpace on 2016-03-04T16:25:51Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Roger Dissertação Mestrado 2014_ versão Final biblioteca_ Entregue_.pdf: 1359994 bytes, checksum: ce3bbcf3906e6cb72bdfea9a7b7e7d0
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46

McKinzi, Adonia. "A microbially-driven Fenton reaction for oxidative dechlorination of pentachlorophenol by shewanella putrefaciens." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/30637.

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47

Szeinbaum, Nadia Heliana. "Role of microbial manganese respiration in the anaerobic cycling of nitrogen." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53407.

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Despite the environmental significance of microbial manganese reduction, the molecular mechanism of microbial manganese respiration remains poorly understood. Soluble Mn(III) has been recently found to be a dominant soluble species in aquatic systems, yet little is known about the identity of microbial populations catalyzing Mn(III) reduction in the environment nor the molecular mechanism of Mn(III) respiration. In this research, a suite of Mn(III) reduction-deficient mutant strains were isolated, including Mn(III) reduction-deficient mutant strain Mn3-1 that also displayed the ability to redu
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Wigginton, Nicholas Scott. "Interfacial and long-range electron transfer at the mineral-microbe interface." Diss., Virginia Tech, 2008. http://hdl.handle.net/10919/27441.

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The electron transfer mechanisms of multiheme cytochromes were examined with scanning tunneling microscopy (STM). To simulate bacterial metal reduction mediated by proteins in direct contact with mineral surfaces, monolayers of purified decaheme cytochromes from the metal-reducing bacterium Shewanella oneidensis were prepared on Au(111) surfaces. Recombinant tetracysteine sequences were added to two outermembrane decaheme cytochromes (OmcA and MtrC) from S. oneidensis MR-1 to ensure chemical immobilization on Au(111). STM images of the cytochrome monolayers showed good coverage and their shape
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49

Berger, Julia. "Hydration of swelling clay and bacteria interaction : An experimental in situ reaction study." Université Louis Pasteur (Strasbourg) (1971-2008), 2008. https://publication-theses.unistra.fr/public/theses_doctorat/2008/BERGER_Julia_2008.pdf.

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Cette étude traite du comportement des smectites et de leurs interactions Shewanella putrefaciens. Les résultats expérimentaux ont été obtenu en utilisant un nouveau type de cellule réactionnelle (Warr &amp; Hoffman, 2004) conçue afin de réaliser des mesures de diffraction des rayons X (DRX) in-situ. Des calculations avec CALCMIX (Plançon &amp; Drits, 1999) ont été utilisées pour quantifie d'eau contenue dans les différents sites de stockage (interfoliaires, surfaces et porosité). Les expériences d'hydratation de smectites en conditions abiotiques réalisées sur des bentonites naturelles et ind
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Dague, Etienne. "Physico-chimie des interfaces bactérie - solution aqueuse." Nancy 1, 2006. http://docnum.univ-lorraine.fr/public/SCD_T_2006_0226_DAGUE.pdf.

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L'interface entre les bactéries et leur milieu environnant est impliquée dans de nombreux phénomènes : adhésion, biominéralisation, reconnaissance de surface. Les propriétés physico-chimiques de ces interfaces cellulaires sont le plus souvent qualifiées à des échelles macroscopiques (test d’adhésion à une surface ou à des solvants, mesure d’angle de contact…) ne permettant pas de décrire toute la complexité de ces interfaces. Afin de quantifier ces propriétés aux différentes échelles : micrométrique et nanométrique, nous avons mis en œuvre une approche basée sur des techniques microscopiques e
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