Nanoarchaeota
E44202
Nanoarchaeota is a phylum of ultra-small, symbiotic archaea known for their reduced genomes and association with other archaeal hosts in extreme environments.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Nanoarchaeota canonical | 3 |
| Nanoarchaeaceae | 1 |
| Nanoarchaeales | 1 |
| Nanoarchaeia | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T321266 — 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: Nanoarchaeota Context triple: [Archaea, kingdomsIncluded, Nanoarchaeota]
-
A.
Korarchaeota
Korarchaeota are a deeply branching, poorly understood lineage of Archaea typically found in high-temperature environments and known mainly from environmental DNA rather than cultivated representatives.
-
B.
Thaumarchaeota
Thaumarchaeota are a phylum of Archaea known primarily for their role in ammonia oxidation and global nitrogen cycling in diverse environments.
-
C.
Euryarchaeota
Euryarchaeota is a major phylum of Archaea that includes diverse microorganisms such as many methanogens, extreme halophiles, and some thermophiles.
-
D.
Crenarchaeota
Crenarchaeota is a major phylum of Archaea that includes many thermophilic and chemolithoautotrophic microorganisms commonly found in extreme environments such as hot springs and deep-sea hydrothermal vents.
-
E.
Archaea
Archaea are a domain of single-celled microorganisms distinct from bacteria and eukaryotes, often known for thriving in extreme environments and possessing unique biochemical and genetic features.
- 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: Nanoarchaeota Target entity description: Nanoarchaeota is a phylum of ultra-small, symbiotic archaea known for their reduced genomes and association with other archaeal hosts in extreme environments.
-
A.
Korarchaeota
Korarchaeota are a deeply branching, poorly understood lineage of Archaea typically found in high-temperature environments and known mainly from environmental DNA rather than cultivated representatives.
-
B.
Thaumarchaeota
Thaumarchaeota are a phylum of Archaea known primarily for their role in ammonia oxidation and global nitrogen cycling in diverse environments.
-
C.
Euryarchaeota
Euryarchaeota is a major phylum of Archaea that includes diverse microorganisms such as many methanogens, extreme halophiles, and some thermophiles.
-
D.
Crenarchaeota
Crenarchaeota is a major phylum of Archaea that includes many thermophilic and chemolithoautotrophic microorganisms commonly found in extreme environments such as hot springs and deep-sea hydrothermal vents.
-
E.
Archaea
Archaea are a domain of single-celled microorganisms distinct from bacteria and eukaryotes, often known for thriving in extreme environments and possessing unique biochemical and genetic features.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
archaeal phylum
ⓘ
taxonomic group ⓘ |
| biosyntheticCapacity | limited ⓘ |
| cellEnvelope | archaeal cell envelope ⓘ |
| cellMorphology | coccoid ⓘ |
| cellSize | approximately 400 nanometers or less in diameter ⓘ |
| cellType | prokaryote ⓘ |
| characteristic |
obligate symbionts
ⓘ
reduced genome ⓘ ultra-small cell size ⓘ |
| dependency | host-provided metabolites ⓘ |
| discovery | early 2000s ⓘ |
| domain | Archaea ⓘ |
| energyMetabolism | dependent on host metabolism ⓘ |
| environment |
extreme environments
ⓘ
hot springs ⓘ hydrothermal vents ⓘ |
| genomeCharacteristic |
high coding density
ⓘ
loss of many metabolic genes ⓘ |
| genomeSize | highly reduced ⓘ |
| habitat |
marine hydrothermal systems
ⓘ
terrestrial hot springs ⓘ |
| hostAssociation |
Crenarchaeota
ⓘ
Crenarchaeota ⓘ
surface form:
Desulfurococcales
other archaea ⓘ |
| kingdom | Archaea ⓘ |
| lifestyle | symbiotic ⓘ |
| metabolism | anaerobic ⓘ |
| notableSpecies | Nanoarchaeum equitans ⓘ |
| oxygenTolerance | anaerobic or microaerophilic ⓘ |
| phylogeneticPosition | deep-branching archaeal lineage ⓘ |
| reproduction | asexual reproduction ⓘ |
| researchInterest |
early evolution of Archaea
ⓘ
evolution of symbiosis ⓘ genome reduction ⓘ |
| symbiosisType | ectosymbiosis ⓘ |
| taxonRank | phylum ⓘ |
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: Nanoarchaeota Description of subject: Nanoarchaeota is a phylum of ultra-small, symbiotic archaea known for their reduced genomes and association with other archaeal hosts in extreme environments.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Nanoarchaeia
this entity surface form:
Nanoarchaeales
this entity surface form:
Nanoarchaeaceae