Extracellular Electron Transfer Transcends Microbe-Mineral Interactions [PDF]
Extracellular electron transfer (EET) allows microbes to drive their metabolism through interactions with minerals or electrodes. In recent work, Light et al. (2018) discover a specialized EET pathway in Listeria monocytogenes with homologs in pathogens and gut commensals, suggesting that EET plays important roles in diverse environments.
Saunders, Scott H., Newman, Dianne K.
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Bacterial Extracellular Electron Transfer Occurs in Mammalian Gut [PDF]
As a well-studied biochemical reduction process in environmental microbiology, extracellular electron transfer (EET) was recently discovered in bacteria closely related to human health, and orthologues of a flavin-based EET gene were found in the genomes of many species across Firmicutes, a major phylum in mammalian gut microbiota. However, EET has not
Wei Wang +11 more
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Bacterial extracellular electron transfer components are spin selective
Metal-reducing bacteria have adapted the ability to respire extracellular solid surfaces instead of soluble oxidants. This process requires an electron transport pathway that spans from the inner membrane, across the periplasm, through the outer membrane, and to an external surface.
Christina M. Niman +11 more
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Exploring the biochemistry at the extracellular redox frontier of bacterial mineral Fe(III) respiration [PDF]
Many species of the bacterial Shewanella genus are notable for their ability to respire in anoxic environments utilizing insoluble minerals of Fe(III) and Mn(IV) as extracellular electron acceptors.
Andrew J. Gates +27 more
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Redox linked flavin sites in extracellular decaheme proteins involved in microbe-mineral electron transfer [PDF]
Extracellular microbe-mineral electron transfer is a major driving force for the oxidation of organic carbon in many subsurface environments. Extracellular multi-heme cytochromes of the Shewenella genus play a major role in this process but the mechanism
A Okamoto +35 more
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Modeling biofilms with dual extracellular electron transfer mechanisms [PDF]
Electrochemically active biofilms have a unique form of respiration in which they utilize solid external materials as terminal electron acceptors for their metabolism. Currently, two primary mechanisms have been identified for long-range extracellular electron transfer (EET): a diffusion- and a conduction-based mechanism.
Renslow, Ryan +6 more
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Mechanisms of Bacterial Extracellular Electron Exchange. [PDF]
The biochemical mechanisms by which microbes interact with extracellular soluble metal ions and insoluble redox-active minerals have been the focus of intense research over the last three decades. The process presents two challenges to the microorganism;
Butt, Julea N. +5 more
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Two Routes for Extracellular Electron Transfer in Enterococcus faecalis [PDF]
The transfer of reducing power in the form of electrons, generated in the catabolism of nutrients, from a bacterium to an extracellular acceptor appears to be common in nature. The electron acceptor can be another cell or abiotic material.
Lars Hederstedt +2 more
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Electron Uptake by Iron-Oxidizing Phototrophic Bacteria [PDF]
Oxidation–reduction reactions underlie energy generation in nearly all life forms. Although most organisms use soluble oxidants and reductants, some microbes can access solid-phase materials as electron-acceptors or -donors via extracellular electron ...
Bose, Arpita +4 more
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Modification of bacterial cell membrane to accelerate decolorization of textile wastewater effluent using microbial fuel cells: role of gamma radiation [PDF]
The aim of the present work was to increase bacterial adhesion on anode via inducing membrane modifications to enhance textile wastewater treatment in Microbial Fuel Cell (MFC).
Abd El Kareem, H. +19 more
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