MESSAI.iO

Electrogen · Iron reducer

Geobacter anodireducens SD-1

Also known as Geobacter sp. SD-1

Thermodesulfobacteriota · Desulfuromonadia · Geobacteraceae

ElectroactiveEET outwardType strainBSL-1Partial record
  • Geobacter
  • Electrogen
  • Halotolerant
  • Tier 2
Outward
Electron transfer
electroactive
30°C
Optimal temperature
grows 20–40 °C
7
Optimal pH
grows pH 6–8

01 · Identity

Identity

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

Lineage

  1. domainBacteria
  2. ›phylumThermodesulfobacteriota
  3. ›classDesulfuromonadia
  4. ›orderDesulfuromonadales
  5. ›familyGeobacteraceae
  6. ›genusGeobacter
  7. ›speciesGeobacter anodireducens SD-1

Culture collections & accessions

NCBI taxon
1340225
Status
Type strain

Isolation

From MFC anode biofilm enriched from sediment, Hunan, China (2014).

Cell morphology

Rod, Gram-negative (diderm)

  • 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 outward
CELLELECTRODEOUTER-MEMBRANE CYTOCHROMESe⁻CONDUCTIVE NANOWIRESe⁻
Electrons flow outward: cell → electrode (exoelectrogen)

Mechanisms

  • Outer-membrane cytochromes: yes
  • Conductive pili / nanowires: yes

Direct transfer — detail

Completeness
Partial

03 · Growth envelope

Growth envelope

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

Obligate anaerobeChemoorganoheterotroph
Temperature30 (20–40) °C
0100 °C
pH7 (6–8)
014
Salinity5 (0–30) g/L
050 g/L

Notably halotolerant relative to G. sulfurreducens — performance maintained at NaCl up to ~30 g/L.

Energy metabolism

Electron donors

  • Acetate
  • Lactate

Electron acceptors

  • Fe(III)
  • Anode
  • Fumarate

Carbon sources

  • Acetate
  • Lactate
  • Ethanol
  • Respiratory: yes

04 · Performance

Performance

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

Role in a reactor

Anode chamberAnode: primary current producer

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
  • Freshwater

Isolation sources

  • MFC anode biofilm enrichment

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 (2)

  • Bioelectricity generation
    TRL 3/9
  • Wastewater treatment
    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

PartialMedium confidenceCurated: manual

Literature reviewed 2026-05-13 · schema v1.3.0 · updated 2026-05-13 · imported 2026-05-13

Open data gaps (2)

  • Cytochrome inventory mapping vs G. sulfurreducens
  • Quantitative kinetic parameters in pure culture

References (1)

  1. Sun D, et al. (2014). Geobacter anodireducens sp. nov., an exoelectrogenic microbe in bioelectrochemical systems. Int J Syst Evol Microbiol 64:3485-3491.doi:10.1099/ijs.0.061598-0