Ignicoccus
E840776
Ignicoccus is a genus of hyperthermophilic, anaerobic archaea typically found in deep-sea hydrothermal vent environments.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Ignicoccus islandicus | 2 |
| Ignicoccus canonical | 1 |
| Ignicoccus pacificus | 1 |
| depends on Ignicoccus for many essential metabolic functions | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10086111 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ignicoccus Context triple: [Ignicoccus hospitalis, genus, Ignicoccus]
-
A.
Ignicoccus hospitalis
Ignicoccus hospitalis is a hyperthermophilic archaeon that thrives in extremely hot, sulfur-rich environments and is notable for its unique cell envelope and symbiotic association with the nanoarchaeon Nanoarchaeum equitans.
-
B.
Pyrobaculum
Pyrobaculum is a genus of hyperthermophilic archaea known for thriving in extremely high-temperature environments such as hot springs and hydrothermal vents.
-
C.
Sulfolobus
Sulfolobus is a genus of thermophilic, acid-loving archaea commonly found in volcanic hot springs and known for their use as model organisms in extremophile research.
-
D.
Sulfolobus solfataricus
Sulfolobus solfataricus is a thermoacidophilic archaeon commonly found in volcanic hot springs, widely used as a model organism for studying extremophile biology and archaeal molecular processes.
-
E.
Pyrobaculum aerophilum
Pyrobaculum aerophilum is a hyperthermophilic archaeon that thrives in extremely high-temperature, often sulfur-rich environments and serves as a model organism for studying the biology of Crenarchaeota.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ignicoccus Target entity description: Ignicoccus is a genus of hyperthermophilic, anaerobic archaea typically found in deep-sea hydrothermal vent environments.
-
A.
Ignicoccus hospitalis
Ignicoccus hospitalis is a hyperthermophilic archaeon that thrives in extremely hot, sulfur-rich environments and is notable for its unique cell envelope and symbiotic association with the nanoarchaeon Nanoarchaeum equitans.
-
B.
Pyrobaculum
Pyrobaculum is a genus of hyperthermophilic archaea known for thriving in extremely high-temperature environments such as hot springs and hydrothermal vents.
-
C.
Sulfolobus
Sulfolobus is a genus of thermophilic, acid-loving archaea commonly found in volcanic hot springs and known for their use as model organisms in extremophile research.
-
D.
Sulfolobus solfataricus
Sulfolobus solfataricus is a thermoacidophilic archaeon commonly found in volcanic hot springs, widely used as a model organism for studying extremophile biology and archaeal molecular processes.
-
E.
Pyrobaculum aerophilum
Pyrobaculum aerophilum is a hyperthermophilic archaeon that thrives in extremely high-temperature, often sulfur-rich environments and serves as a model organism for studying the biology of Crenarchaeota.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
archaea genus
ⓘ
genus ⓘ |
| association | host of Nanoarchaeum equitans ⓘ |
| carbonSource | carbon dioxide ⓘ |
| cellEnvelope |
cytoplasmic membrane
ⓘ
outer cellular membrane ⓘ periplasmic space ⓘ |
| cellShape | coccoid ⓘ |
| cellSize | approximately 1–2 µm in diameter ⓘ |
| cellularOrganization | prokaryotic ⓘ |
| cellWall | lacks typical bacterial peptidoglycan ⓘ |
| class | Desulfurococcales ⓘ |
| CO2FixationPathway | reductive acetyl-CoA pathway ⓘ |
| containsSpecies |
Ignicoccus hospitalis
ⓘ
Ignicoccus islandicus ⓘ
linked to:
Ignicoccus
Ignicoccus pacificus ⓘ
linked to:
Ignicoccus
|
| discoveredInEnvironment | submarine hydrothermal vents near Iceland ⓘ |
| domain | Archaea ⓘ |
| electronAcceptor | elemental sulfur ⓘ |
| electronDonor | H2 ⓘ |
| energySource | hydrogen ⓘ |
| environmentalRole |
primary producer in hydrothermal vent ecosystems
ⓘ
sulfur reducer ⓘ |
| family | Ignicoccaceae ⓘ |
| firstDescriptionYear | late 1990s ⓘ |
| genomeType | circular double-stranded DNA ⓘ |
| gramStain | Gram-negative-like envelope structure ⓘ |
| habitat |
deep-sea hydrothermal vents
ⓘ
marine hydrothermal systems ⓘ |
| hasOuterMembrane | true ⓘ |
| isAnaerobic | true ⓘ |
| isHyperthermophilic | true ⓘ |
| lifestyle | free-living ⓘ |
| metabolicProduct | hydrogen sulfide ⓘ |
| metabolismType | chemolithoautotrophic ⓘ |
| motility | non-motile ⓘ |
| optimalTemperature | around 90 °C ⓘ |
| order | Desulfurococcales ⓘ |
| outerMembraneType | energized outer membrane ⓘ |
| oxygenTolerance | strictly anaerobic ⓘ |
| pHPreference | near neutral ⓘ |
| phylum | Thermoproteota ⓘ |
| reproduction | binary fission ⓘ |
| salinityPreference | marine ⓘ |
| taxonRank | genus ⓘ |
| temperatureRange | hyperthermophilic ⓘ |
| typeSpecies |
Ignicoccus islandicus
ⓘ
linked to:
Ignicoccus
|
| usesSulfurReduction | true ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Ignicoccus Description of subject: Ignicoccus is a genus of hyperthermophilic, anaerobic archaea typically found in deep-sea hydrothermal vent environments.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
Nanoarchaeum equitans
→
hostDependency
→
depends on Ignicoccus for many essential metabolic functions
ⓘ
linked to: Ignicoccus
linked to: Ignicoccus
linked to: Ignicoccus
linked to: Ignicoccus