Ophiostoma
E8929
Ophiostoma is a genus of fungi best known for containing species that cause Dutch elm disease in elm trees.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Ophiostoma canonical | 14 |
| Ophiostoma piliferum | 2 |
| Ophiostoma clavigerum | 1 |
| Ophiostoma minus | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T50263 — 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: Ophiostoma Context triple: [Dutch elm disease, pathogenGenus, Ophiostoma]
-
A.
Ophiostoma ulmi
Ophiostoma ulmi is a pathogenic fungus best known for causing the devastating tree epidemic known as Dutch elm disease.
-
B.
Dutch elm disease
Dutch elm disease is a devastating fungal infection spread by elm bark beetles that has killed millions of elm trees worldwide, particularly in Europe and North America.
-
C.
European elm bark beetle
The European elm bark beetle is a small wood-boring beetle known for spreading the fungal pathogen that causes Dutch elm disease, which has devastated elm populations in many regions.
-
D.
Xerospermophilus
Xerospermophilus is a genus of ground-dwelling squirrels native to arid and semi-arid regions of North America.
-
E.
Ulmus
Ulmus is a genus of deciduous trees commonly known as elms, widely distributed across the Northern Hemisphere and valued for their distinctive vase-shaped form and use in landscaping and timber.
- 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: Ophiostoma Target entity description: Ophiostoma is a genus of fungi best known for containing species that cause Dutch elm disease in elm trees.
-
A.
Ophiostoma ulmi
Ophiostoma ulmi is a pathogenic fungus best known for causing the devastating tree epidemic known as Dutch elm disease.
-
B.
Dutch elm disease
Dutch elm disease is a devastating fungal infection spread by elm bark beetles that has killed millions of elm trees worldwide, particularly in Europe and North America.
-
C.
European elm bark beetle
The European elm bark beetle is a small wood-boring beetle known for spreading the fungal pathogen that causes Dutch elm disease, which has devastated elm populations in many regions.
-
D.
Xerospermophilus
Xerospermophilus is a genus of ground-dwelling squirrels native to arid and semi-arid regions of North America.
-
E.
Ulmus
Ulmus is a genus of deciduous trees commonly known as elms, widely distributed across the Northern Hemisphere and valued for their distinctive vase-shaped form and use in landscaping and timber.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
fungal genus
ⓘ
genus ⓘ |
| associatedWith | bark beetles ⓘ |
| causes |
Dutch elm disease
ⓘ
surface form:
Dutch elm disease (via some species)
vascular wilt diseases in trees (some species) ⓘ |
| class | Sordariomycetes ⓘ |
| distribution | cosmopolitan in temperate regions ⓘ |
| ecologicalRole |
plant pathogen
ⓘ
wood-inhabiting fungus ⓘ |
| family | Ophiostomataceae ⓘ |
| genomeSequenced |
Ophiostoma novo-ulmi
ⓘ
Ophiostoma ulmi ⓘ |
| habitat |
under bark of trees
ⓘ
xylem of trees ⓘ |
| hasSpecies |
Ophiostoma
self-linksurface differs
ⓘ
surface form:
Ophiostoma clavigerum
Ophiostoma himal-ulmi ⓘ Ophiostoma ips ⓘ Ophiostoma self-linksurface differs ⓘ
surface form:
Ophiostoma minus
Ophiostoma novo-ulmi ⓘ Ophiostoma piceae ⓘ Ophiostoma self-linksurface differs ⓘ
surface form:
Ophiostoma piliferum
Ophiostoma quercus ⓘ Ophiostoma ulmi ⓘ Ophiostoma ulmi s.l. ⓘ Ophiostoma wageneri ⓘ |
| hasTypeSpecies |
Ophiostoma
self-linksurface differs
ⓘ
surface form:
Ophiostoma piliferum
|
| historicallyConfusedWith | Ceratocystis ⓘ |
| hostRange |
conifers (some species)
ⓘ
primarily hardwood trees ⓘ |
| impact |
contributes to decline of urban and forest elms
ⓘ
major economic impact on elm populations ⓘ |
| interactionWithInsects | forms mutualistic associations with bark beetles ⓘ |
| isKnownFor |
containing species that cause Dutch elm disease
ⓘ
containing tree-pathogenic fungi ⓘ |
| kingdom | Fungi ⓘ |
| morphology |
often produces synnemata or coremia in asexual state
ⓘ
produces ascospores in asci ⓘ produces perithecial ascomata ⓘ |
| namedBy | Heinrich Georg Winter ⓘ |
| notableDisease | Dutch elm disease ⓘ |
| order |
Ophiostomataceae
ⓘ
surface form:
Ophiostomatales
|
| pathogenicTo | Ulmus (elm) trees ⓘ |
| phylum | Ascomycota ⓘ |
| reproductiveType | ascomycetous ⓘ |
| studiedIn | forest pathology ⓘ |
| subphylum |
Ascomycota
ⓘ
surface form:
Pezizomycotina
|
| taxonRank | genus ⓘ |
| transmissionVector | elm bark beetles ⓘ |
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: Ophiostoma Description of subject: Ophiostoma is a genus of fungi best known for containing species that cause Dutch elm disease in elm trees.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ophiostoma piliferum
this entity surface form:
Ophiostoma piliferum
this entity surface form:
Ophiostoma minus
this entity surface form:
Ophiostoma clavigerum