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Journal articles on the topic 'Geobacter sulfurreducens'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 April 2022

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1

Tabares, Marcela, Hunter Dulay, and Gemma Reguera. "Geobacter sulfurreducens." Trends in Microbiology 28, no. 4 (2020): 327–28. http://dx.doi.org/10.1016/j.tim.2019.11.004.

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2

Sun, Dan, Aijie Wang, Shaoan Cheng, Matthew Yates, and Bruce E. Logan. "Geobacter anodireducens sp. nov., an exoelectrogenic microbe in bioelectrochemical systems." International Journal of Systematic and Evolutionary Microbiology 64, Pt_10 (2014): 3485–91. http://dx.doi.org/10.1099/ijs.0.061598-0.

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A previously isolated exoelectrogenic bacterium, strain SD-1T, was further characterized and identified as a representative of a novel species of the genus Geobacter . Strain SD-1T was Gram-negative, aerotolerant, anaerobic, non-spore-forming, non-fermentative and non-motile. Cells were short, curved rods (0.8–1.3 µm long and 0.3 µm in diameter). Growth of strain SD-1T was observed at 15–42 °C and pH 6.0–8.5, with optimal growth at 30–35 °C and pH 7. Analysis of 16S rRNA gene sequences indicated that the isolate was a member of the genus Geobacter , with the closest known relative being Geobac

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3

Eickhoff, Merle, Daniel Birgel, Helen M. Talbot, Jörn Peckmann, and Andreas Kappler. "Bacteriohopanoid inventory of Geobacter sulfurreducens and Geobacter metallireducens." Organic Geochemistry 58 (May 2013): 107–14. http://dx.doi.org/10.1016/j.orggeochem.2013.02.013.

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4

Geelhoed, Jeanine S., Anne M. Henstra, and Alfons J. M. Stams. "Carboxydotrophic growth of Geobacter sulfurreducens." Applied Microbiology and Biotechnology 100, no. 2 (2015): 997–1007. http://dx.doi.org/10.1007/s00253-015-7033-z.

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5

Cosert, Krista M., Rebecca J. Steidl, Angelines Castro-Forero, Robert M. Worden, and Gemma Reguera. "Electronic characterization of Geobacter sulfurreducens pilins in self-assembled monolayers unmasks tunnelling and hopping conduction pathways." Physical Chemistry Chemical Physics 19, no. 18 (2017): 11163–72. http://dx.doi.org/10.1039/c7cp00885f.

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The peptide subunit of Geobacter nanowires (pili) metal-reducing bacterium Geobacter sulfurreducens was self-assembled as a conductive monolayer. Its electronic characterized revealed tunneling and hopping regimes.

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6

Selvaraj, Ashok, Subazini Thankaswamy Kosalai, Rajadurai Chinnasamy Perumal, Subhashini Pitchai, and Gopal Ramesh Kumar. "A Whole Genome Pairwise Comparative and Functional Analysis of Geobacter sulfurreducens PCA." ISRN Computational Biology 2013 (July 24, 2013): 1–6. http://dx.doi.org/10.1155/2013/850179.

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Geobacter species are involved in electricity production, bioremediations, and various environmental friendly activities. Whole genome comparative analyses of Geobacter sulfurreducens PCA, Geobacter bemidjiensis Bem, Geobacter sp. FRC-32, Geobacter lovleyi SZ, Geobacter sp. M21, Geobacter metallireducens GS-15, Geobacter uraniireducens Rf4 have been made to find out similarities and dissimilarities among them. For whole genome comparison of Geobacter species, an in-house tool, Geobacter Comparative Genomics Tool (GCGT) has been developed using BLASTALL program, and these whole genome analyses

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7

Malsam, Jason A., Vishard Ragoonanan, Daniel R. Bond, and Alptekin Aksan. "41. Desiccation response of Geobacter sulfurreducens." Cryobiology 55, no. 3 (2007): 337. http://dx.doi.org/10.1016/j.cryobiol.2007.10.044.

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8

Adhikari, Ramesh Y., Nikhil S. Malvankar, Mark T. Tuominen, and Derek R. Lovley. "Conductivity of individual Geobacter pili." RSC Advances 6, no. 10 (2016): 8354–57. http://dx.doi.org/10.1039/c5ra28092c.

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Measurements of the conductivity of hydrated individual pili of Geobacter sulfurreducens that were not subjected to chemical fixation revealed conductivity along cytochrome-free regions comparable to conducting organic polymer nanowires of similar diameter.

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9

Kuzume, Akiyoshi, Ulmas Zhumaev, Jianfeng Li, et al. "An in situ surface electrochemistry approach towards whole-cell studies: the structure and reactivity of a Geobacter sulfurreducens submonolayer on electrified metal/electrolyte interfaces." Phys. Chem. Chem. Phys. 16, no. 40 (2014): 22229–36. http://dx.doi.org/10.1039/c4cp03357d.

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10

Santos, Telma C., Marta A. Silva, Leonor Morgado, Joana M. Dantas, and Carlos A. Salgueiro. "Diving into the redox properties of Geobacter sulfurreducens cytochromes: a model for extracellular electron transfer." Dalton Transactions 44, no. 20 (2015): 9335–44. http://dx.doi.org/10.1039/c5dt00556f.

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11

Call, Douglas F., Rachel C. Wagner, and Bruce E. Logan. "Hydrogen Production by Geobacter Species and a Mixed Consortium in a Microbial Electrolysis Cell." Applied and Environmental Microbiology 75, no. 24 (2009): 7579–87. http://dx.doi.org/10.1128/aem.01760-09.

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ABSTRACT A hydrogen utilizing exoelectrogenic bacterium (Geobacter sulfurreducens) was compared to both a nonhydrogen oxidizer (Geobacter metallireducens) and a mixed consortium in order to compare the hydrogen production rates and hydrogen recoveries of pure and mixed cultures in microbial electrolysis cells (MECs). At an applied voltage of 0.7 V, both G. sulfurreducens and the mixed culture generated similar current densities (ca. 160 A/m3), resulting in hydrogen production rates of ca. 1.9 m3 H2/m3/day, whereas G. metallireducens exhibited lower current densities and production rates of 110

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12

Law, Nicholas, Saadia Ansari, Francis R. Livens, Joanna C. Renshaw, and Jonathan R. Lloyd. "Formation of Nanoscale Elemental Silver Particles via Enzymatic Reduction by Geobacter sulfurreducens." Applied and Environmental Microbiology 74, no. 22 (2008): 7090–93. http://dx.doi.org/10.1128/aem.01069-08.

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ABSTRACT Geobacter sulfurreducens reduced Ag(I) (as insoluble AgCl or Ag+ ions), via a mechanism involving c-type cytochromes, precipitating extracellular nanoscale Ag(0). These results extend the range of metals known to be reduced by Geobacter species and offer a method for recovering silver from contaminated water as potentially useful silver nanoparticles.

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13

Kalathil, Shafeer, Krishna P. Katuri, and Pascal E. Saikaly. "Synthesis of an amorphous Geobacter-manganese oxide biohybrid as an efficient water oxidation catalyst." Green Chemistry 22, no. 17 (2020): 5610–18. http://dx.doi.org/10.1039/c9gc04353e.

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14

Feliciano, G. T., R. J. Steidl, and G. Reguera. "Structural and functional insights into the conductive pili of Geobacter sulfurreducens revealed in molecular dynamics simulations." Physical Chemistry Chemical Physics 17, no. 34 (2015): 22217–26. http://dx.doi.org/10.1039/c5cp03432a.

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15

Núñez, Cinthia, Lorrie Adams, Susan Childers, and Derek R. Lovley. "The RpoS Sigma Factor in the Dissimilatory Fe(III)-Reducing Bacterium Geobacter sulfurreducens." Journal of Bacteriology 186, no. 16 (2004): 5543–46. http://dx.doi.org/10.1128/jb.186.16.5543-5546.2004.

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ABSTRACT Geobacter sulfurreducens RpoS sigma factor was shown to contribute to survival in stationary phase and upon oxygen exposure. Furthermore, a mutation in rpoS decreased the rate of reduction of insoluble Fe(III) but not of soluble forms of iron. This study suggests that RpoS plays a role in regulating metabolism of Geobacter under suboptimal conditions in subsurface environments.

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16

Bonanni, Pablo Sebastián, Germán David Schrott, and Juan Pablo Busalmen. "A long way to the electrode: how do Geobacter cells transport their electrons?" Biochemical Society Transactions 40, no. 6 (2012): 1274–79. http://dx.doi.org/10.1042/bst20120046.

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The mechanism of electron transport in Geobacter sulfurreducens biofilms is a topic under intense study and debate. Although some proteins were found to be essential for current production, the specific role that each one plays in electron transport to the electrode remains to be elucidated and a consensus on the mechanism of electron transport has not been reached. In the present paper, to understand the state of the art in the topic, electron transport from inside of the cell to the electrode in Geobacter sulfurreducens biofilms is analysed, reviewing genetic studies, biofilm conductivity as

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17

Reguera, Gemma, Rachael B. Pollina, Julie S. Nicoll, and Derek R. Lovley. "Possible Nonconductive Role of Geobacter sulfurreducens Pilus Nanowires in Biofilm Formation." Journal of Bacteriology 189, no. 5 (2006): 2125–27. http://dx.doi.org/10.1128/jb.01284-06.

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ABSTRACT Geobacter sulfurreducens required expression of electrically conductive pili to form biofilms on Fe(III) oxide surfaces, but pili were also essential for biofilm development on plain glass when fumarate was the sole electron acceptor. Furthermore, pili were needed for cell aggregation in agglutination studies. These results suggest that the pili of G. sulfurreducens also have a structural role in biofilm formation.

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18

Ing, Nicole L., Tyler D. Nusca, and Allon I. Hochbaum. "Correction: Geobacter sulfurreducens pili support ohmic electronic conduction in aqueous solution." Physical Chemistry Chemical Physics 20, no. 2 (2018): 1294. http://dx.doi.org/10.1039/c7cp90275a.

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19

Risso, Carla, Stephen J. Van Dien, Amber Orloff, Derek R. Lovley, and Maddalena V. Coppi. "Elucidation of an Alternate Isoleucine Biosynthesis Pathway in Geobacter sulfurreducens." Journal of Bacteriology 190, no. 7 (2008): 2266–74. http://dx.doi.org/10.1128/jb.01841-07.

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ABSTRACT The central metabolic model for Geobacter sulfurreducens included a single pathway for the biosynthesis of isoleucine that was analogous to that of Escherichia coli, in which the isoleucine precursor 2-oxobutanoate is generated from threonine. 13C labeling studies performed in G. sulfurreducens indicated that this pathway accounted for a minor fraction of isoleucine biosynthesis and that the majority of isoleucine was instead derived from acetyl-coenzyme A and pyruvate, possibly via the citramalate pathway. Genes encoding citramalate synthase (GSU1798), which catalyzes the first dedic

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20

Céspedes, Eva, James M. Byrne, Neil Farrow, et al. "Bacterially synthesized ferrite nanoparticles for magnetic hyperthermia applications." Nanoscale 6, no. 21 (2014): 12958–70. http://dx.doi.org/10.1039/c4nr03004d.

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Ferrite nanoparticles extracellularly synthesized by the bacteria Geobacter sulfurreducens show great potential for nanomedicine. These nanoparticles may allow both diagnostics and controlled hyperthermia in the biological environment.

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21

Yates, Matthew D., Sarah M. Strycharz-Glaven, Joel P. Golden, et al. "Measuring conductivity of living Geobacter sulfurreducens biofilms." Nature Nanotechnology 11, no. 11 (2016): 910–13. http://dx.doi.org/10.1038/nnano.2016.186.

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22

Yates, Matthew D., Roland D. Cusick, and Bruce E. Logan. "Extracellular Palladium Nanoparticle Production using Geobacter sulfurreducens." ACS Sustainable Chemistry & Engineering 1, no. 9 (2013): 1165–71. http://dx.doi.org/10.1021/sc4000785.

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23

Engel, Christina Elisabeth Anna, David Vorländer, Rebekka Biedendieck, Rainer Krull, and Katrin Dohnt. "Quantification of microaerobic growth of Geobacter sulfurreducens." PLOS ONE 15, no. 1 (2020): e0215341. http://dx.doi.org/10.1371/journal.pone.0215341.

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24

Lin, W. C., M. V. Coppi, and D. R. Lovley. "Geobacter sulfurreducens Can Grow with Oxygen as a Terminal Electron Acceptor." Applied and Environmental Microbiology 70, no. 4 (2004): 2525–28. http://dx.doi.org/10.1128/aem.70.4.2525-2528.2004.

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ABSTRACT Geobacter sulfurreducens, previously classified as a strict anaerobe, tolerated exposure to atmospheric oxygen for at least 24 h and grew with oxygen as the sole electron acceptor at concentrations of 10% or less in the headspace. These results help explain how Geobacter species may survive in oxic subsurface environments, being poised to rapidly take advantage of the development of anoxic conditions.

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25

Yates, Matthew D., Joel P. Golden, Jared Roy, et al. "Thermally activated long range electron transport in living biofilms." Physical Chemistry Chemical Physics 17, no. 48 (2015): 32564–70. http://dx.doi.org/10.1039/c5cp05152e.

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The rate of extracellular electron transport through living, electrode-grown Geobacter sulfurreducens biofilms decreases with decreasing temperature, consistent with incoherent redox conductivity (electron hopping) among hemes of c-type cytochromes to conductive surfaces.

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26

Cord-Ruwisch, Ralf, Derek R. Lovley, and Bernhard Schink. "Growth of Geobacter sulfurreducens with Acetate in Syntrophic Cooperation with Hydrogen-Oxidizing Anaerobic Partners." Applied and Environmental Microbiology 64, no. 6 (1998): 2232–36. http://dx.doi.org/10.1128/aem.64.6.2232-2236.1998.

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ABSTRACT Pure cultures of Geobacter sulfurreducens and other Fe(III)-reducing bacteria accumulated hydrogen to partial pressures of 5 to 70 Pa with acetate, butyrate, benzoate, ethanol, lactate, or glucose as the electron donor if electron release to an acceptor was limiting. G. sulfurreducens coupled acetate oxidation with electron transfer to an anaerobic partner bacterium in the absence of ferric iron or other electron acceptors. Cocultures of G. sulfurreducens and Wolinella succinogenes with nitrate as the electron acceptor degraded acetate efficiently and grew with doubling times of 6 to

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27

Jara, Mónica, Cinthia Núñuz, Susana Campoy, Antonio R. Fernández de Henestrosa, Derek R. Lovley, and Jordi Barbé. "Geobacter sulfurreducens Has Two Autoregulated lexA Genes Whose Products Do Not Bind the recA Promoter: Differing Responses of lexA and recA to DNA Damage." Journal of Bacteriology 185, no. 8 (2003): 2493–502. http://dx.doi.org/10.1128/jb.185.8.2493-2502.2003.

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ABSTRACT The Escherichia coli LexA protein was used as a query sequence in TBLASTN searches to identify the lexA gene of the δ-proteobacterium Geobacter sulfurreducens from its genome sequence. The results of the search indicated that G. sulfurreducens has two independent lexA genes designated lexA1 and lexA2. A copy of a dinB gene homologue, which in E. coli encodes DNA polymerase IV, is present downstream of each lexA gene. Reverse transcription-PCR analyses demonstrated that, in both cases, lexA and dinB constitute a single transcriptional unit. Electrophoretic mobility shift assays with pu

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28

Nevin, Kelly P., Pei Zhang, Ashley E. Franks, Trevor L. Woodard, and Derek R. Lovley. "Anaerobes unleashed: Aerobic fuel cells of Geobacter sulfurreducens." Journal of Power Sources 196, no. 18 (2011): 7514–18. http://dx.doi.org/10.1016/j.jpowsour.2011.05.021.

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29

Coppi, M. V., C. Leang, S. J. Sandler, and D. R. Lovley. "Development of a Genetic System for Geobacter sulfurreducens." Applied and Environmental Microbiology 67, no. 7 (2001): 3180–87. http://dx.doi.org/10.1128/aem.67.7.3180-3187.2001.

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30

Bond, Daniel R., and Derek R. Lovley. "Electricity Production by Geobacter sulfurreducens Attached to Electrodes." Applied and Environmental Microbiology 69, no. 3 (2003): 1548–55. http://dx.doi.org/10.1128/aem.69.3.1548-1555.2003.

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ABSTRACT Previous studies have suggested that members of the Geobacteraceae can use electrodes as electron acceptors for anaerobic respiration. In order to better understand this electron transfer process for energy production, Geobacter sulfurreducens was inoculated into chambers in which a graphite electrode served as the sole electron acceptor and acetate or hydrogen was the electron donor. The electron-accepting electrodes were maintained at oxidizing potentials by connecting them to similar electrodes in oxygenated medium (fuel cells) or to potentiostats that poised electrodes at +0.2 V v

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31

Ueki, Toshiyuki, and Derek R. Lovley. "Heat-shock sigma factor RpoH from Geobacter sulfurreducens." Microbiology 153, no. 3 (2007): 838–46. http://dx.doi.org/10.1099/mic.0.2006/000638-0.

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32

Golden, Joel, Matthew D. Yates, Michelle Halsted, and Leonard Tender. "Application of electrochemical surface plasmon resonance (ESPR) to the study of electroactive microbial biofilms." Physical Chemistry Chemical Physics 20, no. 40 (2018): 25648–56. http://dx.doi.org/10.1039/c8cp03898h.

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Results reveal that for an electrode-grown Geobacter sulfurreducens biofilm, as much as 70% of cytochrome hemes residing within hundreds of nanometers from the electrode surface store electrons even as extracellular electron transport is occurring across the biofilm/electrode interface.

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33

Orellana, Roberto, Kim K. Hixson, Sean Murphy, et al. "Proteome of Geobacter sulfurreducens in the presence of U(VI)." Microbiology 160, no. 12 (2014): 2607–17. http://dx.doi.org/10.1099/mic.0.081398-0.

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Geobacter species often play an important role in the in situ bioremediation of uranium-contaminated groundwater, but little is known about how these microbes avoid uranium toxicity. To evaluate this further, the proteome of Geobacter sulfurreducens exposed to 100 µM U(VI) acetate was compared to control cells not exposed to U(VI). Of the 1363 proteins detected from these cultures, 203 proteins had higher abundance during exposure to U(VI) compared with the control cells and 148 proteins had lower abundance. U(VI)-exposed cultures expressed lower levels of proteins involved in growth, protein

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34

Lloyd, Jon R., Elizabeth L. Blunt-Harris, and Derek R. Lovley. "The Periplasmic 9.6-Kilodalton c-Type Cytochrome of Geobacter sulfurreducens Is Not an Electron Shuttle to Fe(III)." Journal of Bacteriology 181, no. 24 (1999): 7647–49. http://dx.doi.org/10.1128/jb.181.24.7647-7649.1999.

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ABSTRACT Geobacter sulfurreducens contains a 9.6-kDac-type cytochrome that was previously proposed to serve as an extracellular electron shuttle to insoluble Fe(III) oxides. However, when the cytochrome was added to washed-cell suspensions of G. sulfurreducens it did not enhance Fe(III) oxide reduction, whereas similar concentrations of the known electron shuttle, anthraquinone-2,6-disulfonate, greatly stimulated Fe(III) oxide reduction. Furthermore, analysis of the extracellularc-type cytochromes in cultures of G. sulfurreducens demonstrated that the dominant c-type cytochrome was not the 9.6

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35

Núñez, Cinthia, Abraham Esteve-Núñez, Carol Giometti, et al. "DNA Microarray and Proteomic Analyses of the RpoS Regulon in Geobacter sulfurreducens." Journal of Bacteriology 188, no. 8 (2006): 2792–800. http://dx.doi.org/10.1128/jb.188.8.2792-2800.2006.

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ABSTRACT The regulon of the sigma factor RpoS was defined in Geobacter sulfurreducens by using a combination of DNA microarray expression profiles and proteomics. An rpoS mutant was examined under steady-state conditions with acetate as an electron donor and fumarate as an electron acceptor and with additional transcriptional profiling using Fe(III) as an electron acceptor. Expression analysis revealed that RpoS acts as both a positive and negative regulator. Many of the RpoS-dependent genes determined play roles in energy metabolism, including the tricarboxylic acid cycle, signal transduction

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36

Morgado, Leonor, Ana P. Fernandes, Joana M. Dantas, Marta A. Silva, and Carlos A. Salgueiro. "On the road to improve the bioremediation and electricity-harvesting skills of Geobacter sulfurreducens: functional and structural characterization of multihaem cytochromes." Biochemical Society Transactions 40, no. 6 (2012): 1295–301. http://dx.doi.org/10.1042/bst20120099.

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Extracellular electron transfer is one of the physiological hallmarks of Geobacter sulfurreducens, allowing these bacteria to reduce toxic and/or radioactive metals and grow on electrode surfaces. Aiming to functionally optimize the respiratory electron-transfer chains, such properties can be explored through genetically engineered strains. Geobacter species comprise a large number of different multihaem c-type cytochromes involved in the extracellular electron-transfer pathways. The functional characterization of multihaem proteins is particularly complex because of the coexistence of several

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37

Butler, Jessica E., Richard H. Glaven, Abraham Esteve-Núñez, et al. "Genetic Characterization of a Single Bifunctional Enzyme for Fumarate Reduction and Succinate Oxidation in Geobacter sulfurreducens and Engineering of Fumarate Reduction in Geobacter metallireducens." Journal of Bacteriology 188, no. 2 (2006): 450–55. http://dx.doi.org/10.1128/jb.188.2.450-455.2006.

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ABSTRACT The mechanism of fumarate reduction in Geobacter sulfurreducens was investigated. The genome contained genes encoding a heterotrimeric fumarate reductase, FrdCAB, with homology to the fumarate reductase of Wolinella succinogenes and the succinate dehydrogenase of Bacillus subtilis. Mutation of the putative catalytic subunit of the enzyme resulted in a strain that lacked fumarate reductase activity and was unable to grow with fumarate as the terminal electron acceptor. The mutant strain also lacked succinate dehydrogenase activity and did not grow with acetate as the electron donor and

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38

Zhou, Shungui, Guiqin Yang, Qin Lu, and Min Wu. "Geobacter soli sp. nov., a dissimilatory Fe(III)-reducing bacterium isolated from forest soil." International Journal of Systematic and Evolutionary Microbiology 64, Pt_11 (2014): 3786–91. http://dx.doi.org/10.1099/ijs.0.066662-0.

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A novel Fe(III)-reducing bacterium, designated GSS01T, was isolated from a forest soil sample using a liquid medium containing acetate and ferrihydrite as electron donor and electron acceptor, respectively. Cells of strain GSS01T were strictly anaerobic, Gram-stain-negative, motile, non-spore-forming and slightly curved rod-shaped. Growth occurred at 16–40 °C and optimally at 30 °C. The DNA G+C content was 60.9 mol%. The major respiratory quinone was MK-8. The major fatty acids were C16 : 0, C18 : 0 and C16 : 1ω7c/C16 : 1ω6c. Strain GSS01T was able to grow with ferrihydrite, Fe(III) citrate, M

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39

Tan, Zhesen, Chi Ho Chan, Michael Maleska, et al. "The Signaling Pathway That cGAMP Riboswitches Found: Analysis and Application of Riboswitches to Study cGAMP Signaling in Geobacter sulfurreducens." International Journal of Molecular Sciences 23, no. 3 (2022): 1183. http://dx.doi.org/10.3390/ijms23031183.

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The Hypr cGAMP signaling pathway was discovered via the function of the riboswitch. In this study, we show the development of a method for affinity capture followed by sequencing to identify non-coding RNA regions that bind nucleotide signals such as cGAMP. The RNAseq of affinity-captured cGAMP riboswitches from the Geobacter sulfurreducens transcriptome highlights general challenges that remain for this technique. Furthermore, by applying riboswitch reporters in vivo, we identify new growth conditions and transposon mutations that affect cGAMP levels in G. sulfurreducens. This work reveals an

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40

Bralley, Patricia, Madeline Cozad, and George H. Jones. "Geobacter sulfurreducens Contains Separate C- and A-Adding tRNA Nucleotidyltransferases and a Poly(A) Polymerase." Journal of Bacteriology 191, no. 1 (2008): 109–14. http://dx.doi.org/10.1128/jb.01166-08.

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ABSTRACT The genome of Geobacter sulfurreducens contains three genes whose sequences are quite similar to sequences encoding known members of an RNA nucleotidyltransferase superfamily that includes tRNA nucleotidyltransferases and poly(A) polymerases. Reverse transcription-PCR using G. sulfurreducens total RNA demonstrated that the genes encoding these three proteins are transcribed. These genes, encoding proteins designated NTSFI, NTSFII, and NTSFIII, were cloned and overexpressed in Escherichia coli. The corresponding enzymes were purified and assayed biochemically, resulting in identificati

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41

Fernandes, Ana P., Tiago C. Nunes, Catarina M. Paquete, and Carlos A. Salgueiro. "Interaction studies between periplasmic cytochromes provide insights into extracellular electron transfer pathways of Geobacter sulfurreducens." Biochemical Journal 474, no. 5 (2017): 797–808. http://dx.doi.org/10.1042/bcj20161022.

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Geobacter bacteria usually prevail among other microorganisms in soils and sediments where Fe(III) reduction has a central role. This reduction is achieved by extracellular electron transfer (EET), where the electrons are exported from the interior of the cell to the surrounding environment. Periplasmic cytochromes play an important role in establishing an interface between inner and outer membrane electron transfer components. In addition, periplasmic cytochromes, in particular nanowire cytochromes that contain at least 12 haem groups, have been proposed to play a role in electron storage in

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42

Leang, Ching, Xinlei Qian, Tünde Mester, and Derek R. Lovley. "Alignment of the c-Type Cytochrome OmcS along Pili of Geobacter sulfurreducens." Applied and Environmental Microbiology 76, no. 12 (2010): 4080–84. http://dx.doi.org/10.1128/aem.00023-10.

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ABSTRACT Immunogold localization revealed that OmcS, a cytochrome that is required for Fe(III) oxide reduction by Geobacter sulfurreducens, was localized along the pili. The apparent spacing between OmcS molecules suggests that OmcS facilitates electron transfer from pili to Fe(III) oxides rather than promoting electron conduction along the length of the pili.

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43

Belianinov, A., M. C. Halsted, M. J. Burch, K. Songkil, and S. T. Retterer. "Biofilm Structure of Geobacter sulfurreducens by Helium Ion Microscopy." Microscopy and Microanalysis 23, S1 (2017): 1152–53. http://dx.doi.org/10.1017/s1431927617006420.

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44

Izallalen, Mounir, Radhakrishnan Mahadevan, Anthony Burgard, et al. "Geobacter sulfurreducens strain engineered for increased rates of respiration." Metabolic Engineering 10, no. 5 (2008): 267–75. http://dx.doi.org/10.1016/j.ymben.2008.06.005.

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Cologgi, Dena L., Allison M. Speers, Blair A. Bullard, Shelly D. Kelly, and Gemma Reguera. "Enhanced Uranium Immobilization and Reduction by Geobacter sulfurreducens Biofilms." Applied and Environmental Microbiology 80, no. 21 (2014): 6638–46. http://dx.doi.org/10.1128/aem.02289-14.

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ABSTRACTBiofilms formed by dissimilatory metal reducers are of interest to develop permeable biobarriers for the immobilization of soluble contaminants such as uranium. Here we show that biofilms of the model uranium-reducing bacteriumGeobacter sulfurreducensimmobilized substantially more U(VI) than planktonic cells and did so for longer periods of time, reductively precipitating it to a mononuclear U(IV) phase involving carbon ligands. The biofilms also tolerated high and otherwise toxic concentrations (up to 5 mM) of uranium, consistent with a respiratory strategy that also protected the cel

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Renslow, R. S., J. T. Babauta, A. C. Dohnalkova, et al. "Metabolic spatial variability in electrode-respiring Geobacter sulfurreducens biofilms." Energy & Environmental Science 6, no. 6 (2013): 1827. http://dx.doi.org/10.1039/c3ee40203g.

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Qiu, Y., B. K. Cho, Y. S. Park, D. Lovley, B. O. Palsson, and K. Zengler. "Structural and operational complexity of the Geobacter sulfurreducens genome." Genome Research 20, no. 9 (2010): 1304–11. http://dx.doi.org/10.1101/gr.107540.110.

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Coppi, Maddalena V. "The hydrogenases of Geobacter sulfurreducens: a comparative genomic perspective." Microbiology 151, no. 4 (2005): 1239–54. http://dx.doi.org/10.1099/mic.0.27535-0.

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Lebedev, Nikolai, Syed Mahmud, Igor Griva, Anders Blom, and Leonard M. Tender. "On the electron transfer through Geobacter sulfurreducens PilA protein." Journal of Polymer Science Part B: Polymer Physics 53, no. 24 (2015): 1706–17. http://dx.doi.org/10.1002/polb.23809.

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Malvankar, Nikhil S., Vincent M. Rotello, Mark T. Tuominen, and Derek R. Lovley. "Reply to 'Measuring conductivity of living Geobacter sulfurreducens biofilms'." Nature Nanotechnology 11, no. 11 (2016): 913–14. http://dx.doi.org/10.1038/nnano.2016.191.

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