Acetogen · Homoacetogen
Acetobacterium woodii
Bacillota · Clostridia · Eubacteriaceae
- Acetogen
- Negative control MES
- Sodium atpase
- Tier 2
- Important negative example
01 · Identity
Identity
Where this organism sits in the tree of life, how to obtain it, and what a cell looks like.
Lineage
- domainBacteria
- ›phylumBacillota
- ›classClostridia
- ›orderEubacteriales
- ›familyEubacteriaceae
- ›genusAcetobacterium
- ›speciesAcetobacterium woodii
Culture collections & accessions
- DSMZ
- DSM 1030
- NCBI taxon
- 33952
- Status
- Type strain
Cell morphology
Rod, Gram-positive (monoderm)
- Motile: no
- Spore-forming: no
02 · Growth envelope
Growth envelope
The conditions this organism tolerates and what it eats and breathes — the operating window for a reactor.
Energy metabolism
Electron donors
- H2
- Fructose
- Lactate
Electron acceptors
- CO2
Carbon sources
- CO2
- H2
- Fructose
- Lactate
- Ethanol
- Methanol
- Fermentative: yes
Metabolism — detail
- ATP synthase type
- Sodium dependent
- Carbon fixation pathway
- Wood ljungdahl
- Energy conservation mechanism
- Rnf complex
03 · Growth & electron-transfer kinetics
Growth & electron-transfer kinetics
How fast this organism grows and how hard it pushes electrons into an anode, as the corpus reports it, and what those constants imply when you run them.
Kinetic evidence
| Parameter | Median | 10–90 % | n | Source |
|---|---|---|---|---|
| Max. specific growth rate μmax | 0.1 h⁻¹ | 0.05–0.2 | 2 | genus prior · 1 ref |
| Half-saturation constant Ks | 30 mg/L | 5–100 | 1 | genus prior · 1 ref |
| Biomass yield Y | 0.07 g/g | 0.03–0.12 | 1 | genus prior · 1 ref |
| Decay coefficient kd | Not in the corpus yet | |||
| Exchange current density i₀ | Not in the corpus yet | |||
| Transfer coefficient α | Not in the corpus yet | |||
| Tafel slope | Not in the corpus yet | |||
Median of the extracted values, the 10–90 % spread behind it and how many values it pools.
Evidence rows (0)
Genus-level prior: Acetobacterium woodii
A genus-level prior is a summary for the whole genus, not a measurement on this strain.
Constants that drive the simulation
Scenario — values you set, not evidence
Growth simulation
Scenario: Initial substrate 1000 mg/L · Initial attached biomass 0.1 g/m² · Anode area per liquid volume 100 m²/m³ · Duration 72 h · Batch. Values you set, not evidence.
No current model
The current needs Max. current density jmax, Half-saturation potential E_KA, which this source does not have.
- Substrate-saturated growth
- Slowing
- Stationary
Monod growth has no lag phase; the bands mark where the net growth rate is near its maximum, falling, near zero or negative.
Simulator notes
- decayPerH absent: no endogenous decay term, so growth is an upper bound
- biofilmDensityKgPerM3 absent: thickness not computed (thicknessUm = null)
- no anodePotentialVvsShe / overpotentialV given: current not computed (currentDensityAPerM2 = null)
These curves are a Monod and Nernst-Monod idealisation (after Marcus et al. 2007 and Torres et al. 2008), parameterised only by the constants listed above: each one carries its n and its 10–90 % range, and a constant with n = 1 has no spread at all. No diffusion inside the biofilm, no detachment, no coulombic-efficiency split. The scenario values are yours, not evidence.
04 · Performance
Performance
Reported electrochemical output, the role it plays in a reactor, and what it produces.
Substrate → product (1)
- H2 + CO2yields
- Acetate
anaerobic, autotrophic
05 · Ecology & biofilm
Ecology & biofilm
How it lives on an electrode, who it partners with, and where it is found in nature.
Ecosystems
- Marine
- Freshwater
- Anaerobic digester
Isolation sources
- marine sediment, freshwater sediment
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)
- BiofuelsTRL 4/9
Engineering
Reactor compatibility
- MES cathode
Genetics
- Genetically tractable: yes
Biosafety
- Pathogen: no
Modeling assets
Linked GEM: iAW773
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
Literature reviewed 2026-04-26 · schema v1.2.0 · updated 2026-04-28 · imported 2026-04-28
Open data gaps (1)
- Detailed kinetics under MES conditions
References (1)
- Nevin KP, et al. (2011). Electrosynthesis of organic compounds from CO2. AEM 77:2882-2886. — A. woodii notably FAILED to perform MES.doi:10.1128/AEM.02642-10
Version history
- 2026-04-27 · v1.2.0 · messai_curation
- Added energy_conservation_mechanism: rnf_complex (consistent with Na+-translocating ATPase that prevents MES viability).