Electromicrobiological concentration cells are an overlooked potential energy conservation mechanism for subsurface microorganisms [PDF]
Frontiers in MicrobiologyThermodynamics has predicted many different kinds of microbial metabolism by determining which pairs of electron acceptors and donors will react to produce an exergonic reaction (a negative net change in Gibbs free energy). In energy-limited environments,
Ian P. G. Marshall
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Using Cathodic Poised Potential Experiments to Investigate Extracellular Electron Transport in the Crustal Deep Biosphere of North Pond, Mid-Atlantic Ridge [PDF]
Frontiers in Environmental Science, 2020 The crustal sub-seafloor covers a large portion of the Earth’s surface but is poorly understood as a habitat for life. It is unclear what metabolisms support the microscopic cells that have been observed, and how they survive under resource limitation ...
Rose M. Jones +3 more
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Towards bioprocess engineering of cable bacteria: Establishment of a synthetic sediment [PDF]
MicrobiologyOpen, Volume 13, Issue 3, June 2024.In this study, we successfully cultivated the cable bacteria strain Electronema aureum GS on a newly developed synthetic sediment, marking the first instance of such cultivation on synthetic rather than natural sediment. The combination of this synthetic sediment and a specially designed sediment bioreactor enables reproducible cultivation of cable ...
Judith Stiefelmaier +3 more
wiley +2 more sources
Iron reduction under oxic conditions by Microbacterium deferre sp. nov. A1-JKT [PDF]
Nature CommunicationsMicrobacterium deferre sp. nov. A1-JKT is a metabolically versatile Gram-positive bacterium isolated from the oxic-anoxic interface of freshwater sediments colonised by cable bacteria. Here, we report the metabolic ability of M.
Jamie J. M. Lustermans +3 more
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Comparison of cable bacteria genera reveals details of their conduction machinery [PDF]
EMBO ReportsCable bacteria are centimeter-long multicellular bacteria conducting electricity through periplasmic conductive fibers (PCFs). Using single-strain enrichments of the genera Electrothrix and Electronema we systematically investigate variations and ...
Leonid Digel +17 more
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Perspectives on Microbial Electron Transfer Networks for Environmental Biotechnology [PDF]
Frontiers in Microbiology, 2022 The overlap of microbiology and electrochemistry provides plenty of opportunities for a deeper understanding of the redox biogeochemical cycle of natural-abundant elements (like iron, nitrogen, and sulfur) on Earth. The electroactive microorganisms (EAMs)
Shaofeng Zhou +4 more
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Large Filamentous Bacteria Isolated From Sulphidic Sediments Reveal Novel Species and Distinct Energy and Defence Mechanisms for Survival [PDF]
Environmental Microbiology, Volume 27, Issue 3, March 2025.In this study, we used micromanipulation and omics to analyse 15 large filamentous bacteria collected from sulphidic sediments off Chile. We discovered novel species from various phyla, and diverse metabolic pathways and defence mechanisms were identified, highlighting their adaptability to the sediment–water interface and resilience against phage ...
Alexis Fonseca +5 more
wiley +2 more sources
Marinobacter: A case study in bioelectrochemical chassis evaluation
Microbial Biotechnology, 2023 The junction of bioelectrochemical systems and synthetic biology opens the door to many potentially groundbreaking technologies. When developing these possibilities, choosing the correct chassis organism can save a great deal of engineering effort and ...
Lina J. Bird +5 more
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Cable bacteria reduce methane emissions from rice-vegetated soils [PDF]
Nature Communications, 2020 Rice paddies are a major source of the Earth’s atmospheric methane, making these important food crops potent contributors to greenhouse gas emissions. Here the authors show that inoculation of paddies with a particular bacterium could significantly curb ...
Vincent V. Scholz +3 more
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Extracellular electron transfer genes expressed by candidate flocking bacteria in cable bacteria sediment [PDF]
mSystemsCable bacteria, filamentous sulfide oxidizers that live in sulfidic sediments, are at times associated with large flocks of swimming bacteria. It has been proposed that these flocks of bacteria transport electrons extracellularly to cable bacteria via an
Jamie J. M. Lustermans +5 more
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