Molecular Insights into the Response of Nonelectroactive Bacteria to Electro-stimulation: Growth and Metabolism Regulation Mechanism

ACS ES&T Engineering, Год журнала: 2024, Номер 4(4), С. 819 - 830

Опубликована: Янв. 30, 2024

Understanding how nonelectroactive bacteria (non-EAB) perceive and respond to electro-stimulation is pivotal for optimizing electro-biostimulation systems. Here, Escherichia coli, a representative non-EAB, was employed investigate its electrical response behavior molecular regulatory mechanism across spectrum of current densities. Accelerated bacterial growth observed at densities ranging from 2 10 A m–2 with maximum rate 1.89 h–1 m–2. Moderate electrostimulation (10 m–2) promoted NADH regeneration adenosine triphosphate synthesis by modulating intracellular glycolytic flux, tricarboxylic acid (TCA) cycle electron transport chain (ETC), while cells became inactivated 20 mainly due the overall inhibition TCA domino collapse ETC. The presence reductive stress caused not only NADPH glutamine consumption but also impacted material exchange fluxes altering outer membrane proteins (OMPs) β-fold β-corner. Additionally, extracellular polymeric substances served as transient medium sense electro-stimulation. study revealed that non-EAB possessed approaches different EET improved comprehension mechanisms governing catabolic pathways under holds promise developing more efficient systems, implications environmental biotechnology applications.

Язык: Английский

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Physico-chemical and biological remediation techniques for the elimination of endocrine-disrupting hazardous chemicals

Environmental Research, Год журнала: 2023, Номер 232, С. 116363 - 116363

Опубликована: Июнь 8, 2023

Язык: Английский

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Directional long-distance electron transfer from reduced to oxidized zones in the subsurface

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Авг. 3, 2024

Electron transfer (ET) is the fundamental redox process of life and element cycling. The ET distance normally as short nanometers or micrometers in subsurface. However, gradient subsurface long centimeters even meters. This gap triggers an intriguing question whether directional long-distance from reduced to oxidized zones exists along gradient. By using electron-donating capacity variation a proxy ET, we show that can last over 10 cm sediment columns, through chain constituted by series short-distance electron hopping reactions. Microbial chemical processes synergistically mediate chain, with estimated flux 6.73 μmol e−/cm2 per day. represents overlooked but important "remote" source electrons for local biogeochemical environmental processes. A occurs subsurface, which reaches centimeter scale. implicates contribution sources/sinks

Язык: Английский

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Response of TCE biodegradation to elevated H2 and O2: Implication for electrokinetic-enhanced bioremediation

Environmental Research, Год журнала: 2024, Номер 248, С. 118338 - 118338

Опубликована: Фев. 3, 2024

Язык: Английский

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Electrokinetic bioremediation of trichloroethylene and Cr/As co-contaminated soils with elevated sulfate

Journal of Hazardous Materials, Год журнала: 2024, Номер 468, С. 133761 - 133761

Опубликована: Фев. 14, 2024

Язык: Английский

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Co-incorporation of C and S into Zero-Valent Iron to Enhance Trichloroethylene Dechlorination: Kinetics, Electron Efficiency, and Dechlorination Capacity

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115824 - 115824

Опубликована: Фев. 1, 2025

Язык: Английский

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Insight into the effect of electric fields on bioremediation of petroleum-contaminated soil: A micro-ecological response

Journal of Environmental Management, Год журнала: 2025, Номер 377, С. 124624 - 124624

Опубликована: Фев. 22, 2025

Язык: Английский

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Iron-reduction driven extracellular electron transfer widely promotes microbial reductive dechlorination metabolism

Water Research, Год журнала: 2025, Номер unknown, С. 123592 - 123592

Опубликована: Апрель 1, 2025

Язык: Английский

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Genome-Resolved Metagenomics and Metatranscriptomics Reveal Insights into the Ecology and Metabolism of Anaerobic Microbial Communities in PCB-Contaminated Sediments

Environmental Science & Technology, Год журнала: 2023, Номер 57(43), С. 16386 - 16398

Опубликована: Окт. 19, 2023

Growth of organohalide-respiring bacteria such as

Язык: Английский

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Influence of microbial inoculation site on trichloroethylene degradation in electrokinetic-enhanced bioremediation of low-permeability soils

Environmental Research, Год журнала: 2024, Номер 252, С. 118899 - 118899

Опубликована: Апрель 9, 2024

Язык: Английский

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