MESSAI.iO

Electrotroph · Methanogen hydrogenotrophic

Methanobacterium sp. strain YSL

Also known as Methanobacterium electrotrophus YSL

Methanobacteriota · Methanobacteria · Methanobacteriaceae

ElectroactiveEET inwardBSL-1Stub record
  • Methanogen
  • Archaea
  • Electrotroph
  • Non cytochrome EET
  • Tier 3
Inward
Electron transfer
electroactive
35°C
Optimal temperature
grows 25–40 °C
7
Optimal pH
grows pH 6.5–7.5

01 · Identity

Identity

Where this organism sits in the tree of life, how to obtain it, and what a cell looks like.

Lineage

  1. domainArchaea
  2. ›phylumMethanobacteriota
  3. ›classMethanobacteria
  4. ›orderMethanobacteriales
  5. ›familyMethanobacteriaceae
  6. ›genusMethanobacterium
  7. ›speciesMethanobacterium sp. YSL

Culture collections & accessions

Cell morphology

Rod · Archaeal pseudomurein

  • Motile: no

02 · Electron transfer

Electron transfer

How electrons cross the cell envelope — the property that makes a microbe useful in an electrochemical system.

ElectroactiveEET inward

No extracellular electron-transfer route is curated for this organism yet.

Mechanisms

  • Outer-membrane cytochromes: no

Direct transfer — detail

Notes
DIET-capable despite lacking outer-surface c-type cytochromes.

Other

Cathode electron uptake mechanism
Direct EET demonstrated

03 · Growth envelope

Growth envelope

The conditions this organism tolerates and what it eats and breathes — the operating window for a reactor.

MesophileObligate anaerobeChemolithoautotroph
Temperature35 (25–40) °C
0100 °C
pH7 (6.5–7.5)
014

Energy metabolism

Electron donors

  • H2
  • Cathode
  • Formate

Electron acceptors

  • CO2

Carbon sources

  • CO2

04 · Performance

Performance

Reported electrochemical output, the role it plays in a reactor, and what it produces.

Role in a reactor

Cathode chamberCathode: primary product producer

Products (1)

ProductMax titer (g/L)Max rateCoulombic efficiency
methane———

05 · Ecology & biofilm

Ecology & biofilm

How it lives on an electrode, who it partners with, and where it is found in nature.

Ecosystems

  • Engineered MES
  • Anaerobic digester

06 · Applications, engineering & safety

Applications, engineering & safety

Where it has been put to work, how tractable it is to engineer, and what handling it requires.

Applications (1)

  • Microbial electrosynthesis methane
    TRL 3/9

Biosafety

BSL-1
  • Pathogen: no

07 · Sources & data quality

Sources & data quality

Every value above traces to a citation. This is how complete and how confident the record is.

Record quality

StubLow confidenceNeeds reviewCurated: manual

Literature reviewed 2026-04-26 · schema v1.2.0 · updated 2026-04-28 · imported 2026-04-28

Open data gaps (3)

  • Genome sequence
  • EET mechanism
  • Electrochemical performance metrics

References (2)

  1. Beese-Vasbender PF, et al. (2015). Selective microbial electrosynthesis of methane by a pure culture of a marine lithoautotrophic archaeon.
  2. Beese-Vasbender PF, et al. (2015). Selective microbial electrosynthesis of methane by a pure culture of a marine lithoautotrophic archaeon.