ArticleThe ISME journal2016
Modelling extracellular limitations for mediated versus direct interspecies electron transfer.
Article in The ISME journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed.
- Biophotocatalytic and bioelectrocatalytic strategies for methane production and oxidation: emerging pathways and perspectives.Archives of microbiology · 2026Review
- Enhanced bio-methanation of coal through direct interspecies electron transfer mediated by nano-magnetite.Bioprocess and biosystems engineering · 2026Article
- Geobatteries in environmental biogeochemistry: Electron transfer and utilization.Environmental science and ecotechnology · 2024Review
- Impact of additives on syntrophic propionate and acetate enrichments under high-ammonia conditions.Applied microbiology and biotechnology · 2024Article
- Electron Transfer in the Biogeochemical Sulfur Cycle.Life (Basel, Switzerland) · 2024Review
- Diverse electron carriers drive syntrophic interactions in an enriched anaerobic acetate-oxidizing consortium.The ISME journal · 2023Article
- A Review of the Current State and Future Prospects in Resource Recovery of Chinese Cereal Vinegar Residue.Foods (Basel, Switzerland) · 2022Review
- Characterization of spatiotemporal electroactive anodic biofilm activity distribution using 1D simulations.Scientific reports · 2022Article
- Light-driven carbon dioxide reduction to methane by Methanosarcina barkeri in an electric syntrophic coculture.The ISME journal · 2022Article
- Improvement of Direct Interspecies Electron TransferFrontiers in microbiology · 2022Review
- Electrostatic Fields Promote Methanogenesis More than Polarized Bioelectrodes in Anaerobic Reactors with Conductive Materials.ACS omega · 2021Article
- Disentangling the syntrophic electron transfer mechanisms of Candidatus geobacter eutrophica through electrochemical stimulation and machine learning.Scientific reports · 2021Article
- Syntrophic interspecies electron transfer drives carbon fixation and growth byScience advances · 2021Article
- Molecular Microbial Community Analysis as an Analysis Tool for Optimal Biogas Production.Microorganisms · 2021Review
- Article
- Comprehensive Bioenergetic Evaluation of Microbial Pathway Variants in Syntrophic Propionate Oxidation.mSystems · 2020Article
- Effects of set cathode potentials on microbial electrosynthesis system performance and biocathode methanogen function at a metatranscriptional level.Scientific reports · 2020Article
- New Frontiers of Anaerobic Hydrocarbon Biodegradation in the Multi-Omics Era.Frontiers in microbiology · 2020Review
- Energy recovery from tubular microbial electrolysis cell with stainless steel mesh as cathode.Royal Society open science · 2017Article
- Happy together: microbial communities that hook up to swap electrons.The ISME journal · 2017Review
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Interspecies electron transfer (IET) is important for many anaerobic processes, but is critically dependent on mode of transfer. In particular, direct IET (DIET) has been recently proposed as a metabolically advantageous mode compared with mediated IET (MIET) via hydrogen or formate. We analyse relative feasibility of these IET modes by modelling external limitations using a reaction-diffusion-electrochemical approach in a three-dimensional domain. For otherwise identical conditions, external electron transfer rates per cell pair (cp) are considerably higher for formate-MIET (317 × 10(3) e(-) cp(-1) s(-1)) compared with DIET (44.9 × 10(3) e(-) cp(-1) s(-1)) or hydrogen-MIET (5.24 × 10(3) e(-) cp(-1) s(-1)). MIET is limited by the mediator concentration gradient at which reactions are still thermodynamically feasible, whereas DIET is limited through redox cofactor (for example, cytochromes) activation losses. Model outcomes are sensitive to key parameters for external electron transfer including cofactor electron transfer rate constant and redox cofactor area, concentration or count per cell, but formate-MIET is generally more favourable for reasonable parameter ranges. Extending the analysis to multiple cells shows that the size of the network does not strongly influence relative or absolute favourability of IET modes. Similar electron transfer rates for formate-MIET and DIET can be achieved in our case with a slight (0.7 kJ mol(-1)) thermodynamic advantage for DIET. This indicates that close to thermodynamic feasibility, external limitations can be compensated for by improved metabolic efficiency when using direct electron transfer.
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