Photobacterium phosphoreum
E930640
Photobacterium phosphoreum is a marine bioluminescent bacterium known for emitting blue-green light and commonly found in symbiosis with deep-sea organisms.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Photobacterium phosphoreum canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T11515180 — 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: Photobacterium phosphoreum Context triple: [Vibrionaceae, includesSpecies, Photobacterium phosphoreum]
-
A.
Nitratiruptor
Nitratiruptor is a genus of deep-sea, thermophilic, nitrate-reducing bacteria commonly found in hydrothermal vent environments.
-
B.
Escherichia coli
Escherichia coli is a widely studied, rod-shaped bacterium commonly found in the intestines of warm-blooded animals and extensively used as a model organism in microbiology and genetics.
-
C.
Bacillus subtilis
Bacillus subtilis is a rod-shaped, Gram-positive, endospore-forming bacterium widely used as a model organism in microbiology and biotechnology.
-
D.
Sulfurospirillum
Sulfurospirillum is a genus of spiral-shaped, sulfur-reducing bacteria commonly found in anaerobic aquatic and sediment environments.
-
E.
Pyrodinium bahamense
Pyrodinium bahamense is a bioluminescent marine dinoflagellate known for producing the glowing waters seen in places like Mosquito Bay.
- 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: Photobacterium phosphoreum Target entity description: Photobacterium phosphoreum is a marine bioluminescent bacterium known for emitting blue-green light and commonly found in symbiosis with deep-sea organisms.
-
A.
Nitratiruptor
Nitratiruptor is a genus of deep-sea, thermophilic, nitrate-reducing bacteria commonly found in hydrothermal vent environments.
-
B.
Escherichia coli
Escherichia coli is a widely studied, rod-shaped bacterium commonly found in the intestines of warm-blooded animals and extensively used as a model organism in microbiology and genetics.
-
C.
Bacillus subtilis
Bacillus subtilis is a rod-shaped, Gram-positive, endospore-forming bacterium widely used as a model organism in microbiology and biotechnology.
-
D.
Sulfurospirillum
Sulfurospirillum is a genus of spiral-shaped, sulfur-reducing bacteria commonly found in anaerobic aquatic and sediment environments.
-
E.
Pyrodinium bahamense
Pyrodinium bahamense is a bioluminescent marine dinoflagellate known for producing the glowing waters seen in places like Mosquito Bay.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bacterial species
ⓘ
bioluminescent bacterium ⓘ |
| application |
used as a bioassay organism for toxicity testing
ⓘ
used in bioluminescent reporter systems ⓘ used in environmental monitoring of pollutants ⓘ |
| bioluminescence | emits blue-green light ⓘ |
| bioluminescenceSystem | luxCDABE operon ⓘ |
| bioluminescenceWavelength | approximately 490 nm ⓘ |
| catalaseTest | catalase-positive ⓘ |
| cellShape | rod-shaped ⓘ |
| class | Gammaproteobacteria ⓘ |
| colonyAppearance | luminescent colonies in the dark ⓘ |
| discoveryPeriod | late 19th century ⓘ |
| domain | Bacteria ⓘ |
| ecologicalRole | symbiont of marine organisms ⓘ |
| energySource | chemoorganotrophic ⓘ |
| family | Vibrionaceae ⓘ |
| flagella | polar flagella ⓘ |
| foundIn | guts of marine animals ⓘ |
| foundOn | surface of marine fish ⓘ |
| genus | Photobacterium ⓘ |
| gramStain | Gram-negative ⓘ |
| habitat |
deep-sea environment
ⓘ
marine environment ⓘ seawater ⓘ |
| lightOrganAssociation | fish light organs ⓘ |
| lightRegulation | quorum-sensing controlled bioluminescence ⓘ |
| luciferaseReaction | FMNH2 + O2 + long-chain aldehyde → FMN + acid + H2O + light ⓘ |
| luciferaseSubstrate |
long-chain aliphatic aldehyde
ⓘ
reduced flavin mononucleotide (FMNH2) ⓘ |
| luminescenceCondition |
luminescence enhanced by high cell density
ⓘ
requires oxygen for light emission ⓘ |
| metabolism | facultatively anaerobic ⓘ |
| motility | motile ⓘ |
| order | Vibrionales ⓘ |
| osmoticPreference | halophilic ⓘ |
| oxidaseTest | oxidase-positive ⓘ |
| oxygenRequirement | facultative anaerobe ⓘ |
| pathogenicity | not typically pathogenic to humans ⓘ |
| phylum | Pseudomonadota ⓘ |
| pigment | non-pigmented in daylight ⓘ |
| quorumSensingMolecule | acyl-homoserine lactone ⓘ |
| saltRequirement | requires sodium ions ⓘ |
| sporeFormation | non-spore-forming ⓘ |
| symbiosisWith |
deep-sea fish
ⓘ
marine invertebrates ⓘ |
| taxonRank | species ⓘ |
| temperaturePreference | mesophilic ⓘ |
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: Photobacterium phosphoreum Description of subject: Photobacterium phosphoreum is a marine bioluminescent bacterium known for emitting blue-green light and commonly found in symbiosis with deep-sea organisms.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.