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Methane-Fed MFC Electrogenesis and Nitrogen-Fixation Consortium

Community ID CommunityMech:000327
Ecological State ENGINEERED
Environment methane-fed nitrogen-limited microbial fuel cell
ENVO:01001405

A methane-fed, nitrogen-limited microbial fuel-cell enrichment that couples anaerobic methane oxidation, extracellular electron transfer, current generation, and biological nitrogen fixation through a reported division of labor. The six genera recorded here are the functional groups named by the source, not a claim that the enrichment contains only six taxa.

Taxonomy

Taxon Ontology ID Functional Roles Abundance
Methanobacterium NCBITaxon:2160
SYNTROPHIC_PARTNER
N/A
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Methanobacterium mediated anaerobic methane oxidation"
Geobacter NCBITaxon:28231
ELECTROGEN SYNTROPHIC_PARTNER
N/A
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Geobacter and Desulfovibrio specialized in EET"
Desulfovibrio NCBITaxon:872
ELECTROGEN SYNTROPHIC_PARTNER
N/A
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Geobacter and Desulfovibrio specialized in EET"
Sulfurivermis NCBITaxon:2034504
SYNTROPHIC_PARTNER
N/A
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Sulfurivermis, Desulfobulbus and Azoarcus acted as the core diazotrophs"
Desulfobulbus NCBITaxon:893
SYNTROPHIC_PARTNER
N/A
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Sulfurivermis, Desulfobulbus and Azoarcus acted as the core diazotrophs"
Azoarcus NCBITaxon:12960
SYNTROPHIC_PARTNER
N/A
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Sulfurivermis, Desulfobulbus and Azoarcus acted as the core diazotrophs"

Ecological Interactions

Ecological interaction network for Methane-Fed MFC Electrogenesis and Nitrogen-Fixation Consortium Bipartite graph where circle nodes represent taxa and each ecological interaction is drawn as a distinct non-circular symbol, with colour repeating the same distinction (syntrophy, niche partitioning).
Taxon
Syntrophy
Niche partitioning

Methane-Fed Syntrophic Division of Labor

SYNTROPHY

Evidence

  • PMID:42551599 - SUPPORT (IN_VITRO)
    "concurrent electrogenesis and BNF via a syntrophic division of labor mechanism"

Extracellular Electron-Transfer Specialization

NICHE_PARTITIONING

Evidence

  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Geobacter and Desulfovibrio specialized in EET"

Core Diazotroph Specialization

NICHE_PARTITIONING

Evidence

  • PMID:42551599 - SUPPORT (IN_VITRO)
    "Sulfurivermis, Desulfobulbus and Azoarcus acted as the core diazotrophs"

Cytochrome c-Mediated Electrogenesis

SYNTROPHY

Evidence

  • PMID:42551599 - SUPPORT (IN_VITRO)
    "electrochemical analyses and inhibitor assays identified cytochrome c-mediated electron transfer as the dominant pathway for electrogenesis"

External Resources

Name Repository Resource ID
Primary publication - methane-driven MFC electrogenesis and nitrogen fixation
Primary DNA-SIP, nitrogen-15 SIP, spectroscopy, electrochemistry, and sequencing study of the consortium. 		OTHER PMID:42551599
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "DNA-SIP combined with high-throughput sequencing further revealed the distinct metabolic specialization of the consortium"

Environmental Factors

Factor Value Unit
Carbon and nitrogen regime methane-fed and nitrogen-limited N/A
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "methane-fed microbial fuel cells (M-MFCs) under nitrogen-limited conditions"
Operation duration 30 days
  • PMID:42551599 - SUPPORT (IN_VITRO)
    "ammonium in the medium accumulated to 0.22 ± 0.01 mg/L over a 30-day operation"

Growth Media

Methane-fed nitrogen-limited MFC medium

Atmosphere ANAEROBIC

Preparation notes: The abstract does not report the basal medium formulation, temperature, pH, electrode materials, or flow regime.

Evidence

PMID:42551599

"Anaerobic methane oxidation coupled to extracellular electron transfer (EET)"

PMID:42551599

"methane-fed microbial fuel cells (M-MFCs) under nitrogen-limited conditions"