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Filamentous bacteria transport electrons over centimetre distances
Evidence is presented that the native conductors are long, filamentous bacteria that abounded in sediment zones with electric currents and along their length they contained strings with distinct properties in accordance with a function as electron transporters.
Shewanella oneidensis MR-1 nanowires are outer membrane and periplasmic extensions of the extracellular electron transport components
- Sahand Pirbadian, Sarah E. Barchinger, M. El-Naggar
- Biology, ChemistryProceedings of the National Academy of Sciences
- 20 August 2014
Using in vivo fluorescence measurements, immunolabeling, and quantitative gene expression analysis, it is demonstrated that S. oneidensis MR-1 nanowires are extensions of the outer membrane and periplasm that include the multiheme cytochromes responsible for EET, rather than pilin-based structures as previously thought.
Electrical transport along bacterial nanowires from Shewanella oneidensis MR-1
- M. El-Naggar, G. Wanger, Y. Gorby
- BiologyProceedings of the National Academy of Sciences
- 11 October 2010
Electro transport measurements along individually addressed bacterial nanowires derived from electron-acceptor–limited cultures of the dissimilatory metal-reducing bacterium Shewanella oneidensis MR-1 allow for bacterial Nanowires to serve as a viable microbial strategy for extracellular electron transport.
Disentangling the roles of free and cytochrome-bound flavins in extracellular electron transport from Shewanella oneidensis MR-1
The molecular density of states in bacterial nanowires.
The recent discovery of electrically conductive bacterial appendages has significant physiological, ecological, and biotechnological implications, but the mechanism of electron transport in these…
Electrokinesis is a microbial behavior that requires extracellular electron transport
- H. W. Harris, M. El-Naggar, K. Nealson
- Biology, Materials ScienceProceedings of the National Academy of Sciences
- 29 December 2009
Electrokinesis is defined as a behavioral response that requires functional extracellular electron transport that is observed as an increase in cell swimming speeds and lengthened paths of motion that occur in the proximity of a redox active mineral surface or the working electrode of an electrochemical cell.
Multistep hopping and extracellular charge transfer in microbial redox chains.
This work proposes that multistep hopping in redox chains constitutes a viable strategy for extracellular charge transfer in microbial biofilms and calculated the current-voltage characteristics and found the results to be in good agreement with I-V measurements across and along individual microbial nanowires produced by the bacterium Shewanella oneidensis MR-1.
Redox‐reactive membrane vesicles produced by Shewanella
- Y. Gorby, J. McLean, A. Korenevsky, K. Rosso, M. El-Naggar, T. Beveridge
- 1 June 2008
The structure and function of outer membrane vesicles from Gram‐negative bacteria that facilitate processes ranging from the delivery of pathogenic enzymes to the possible exchange of genetic information are defined.
Electrically conductive bacterial nanowires in bisphosphonate-related osteonecrosis of the jaw biofilms.
Regulation of Gene Expression in Shewanella oneidensis MR-1 during Electron Acceptor Limitation and Bacterial Nanowire Formation
- Sarah E. Barchinger, Sahand Pirbadian, J. Golbeck
- BiologyApplied and Environmental Microbiology
- 24 June 2016
ABSTRACT In limiting oxygen as an electron acceptor, the dissimilatory metal-reducing bacterium Shewanella oneidensis MR-1 rapidly forms nanowires, extensions of its outer membrane containing the…