MESSAI.iO

Electrogen · Iron reducer

Geoglobus ahangari strain 234

Euryarchaeota · Archaeoglobi · Archaeoglobaceae

ElectroactiveEET outwardBSL-1Stub record
  • Archaea
  • Hyperthermophile
  • Novel EET
  • Tier 3
Outward
Electron transfer
electroactive
88°C
Optimal temperature
grows 65–90 °C
7
Optimal pH
grows pH 5–7.6

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. ›phylumEuryarchaeota
  3. ›classArchaeoglobi
  4. ›orderArchaeoglobales
  5. ›familyArchaeoglobaceae
  6. ›genusGeoglobus
  7. ›speciesGeoglobus ahangari 234

Culture collections & accessions

NCBI taxon
113653

Cell morphology

Coccus · Archaeal s layer only

  • Motile: yes

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⁻NANOWIRE · PILA PILINe⁻
Electrons flow outward: cell → electrode (exoelectrogen)

Mechanisms

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

03 · Growth envelope

Growth envelope

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

HyperthermophileObligate anaerobeChemoorganoheterotroph
Temperature88 (65–90) °C
0100 °C
pH7 (5–7.6)
014
Salinity27 (10–50) g/L
0100 g/L

Energy metabolism

Electron donors

  • Acetate
  • H2
  • fatty acids

Electron acceptors

  • Fe(III)
  • Anode

Carbon sources

  • Acetate
  • Pyruvate
  • Lactate
  • long-chain fatty acids

04 · Performance

Performance

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

Moderate electrogen

05 · Ecology & biofilm

Ecology & biofilm

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

Ecosystems

  • Marine
  • Extreme environment
  • Hydrothermal vent

Isolation sources

  • hydrothermal vent, Guaymas Basin

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)

  • Research model organism

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

StubMedium confidenceNeeds reviewCurated: manual

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

References (2)

  1. Manzella MP, et al. (2013). EET to Fe(III) by Geoglobus ahangari. Appl Environ Microbiol 79:4694-4700.doi:10.1128/AEM.01566-13
  2. Manzella MP, et al. (2013). EET to Fe(III) by Geoglobus ahangari. Appl Environ Microbiol 79:4694-4700.doi:10.1128/AEM.01566-13