Claviceps purpurea
E131948
Claviceps purpurea is a parasitic fungus best known for infecting cereal grains like rye and producing toxic ergot alkaloids that can cause ergotism in humans and animals.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Claviceps purpurea canonical | 3 |
| Claviceps | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1151102 — 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: Claviceps purpurea Context triple: [Ascomycota, includesTaxon, Claviceps purpurea]
-
A.
Boehmeriopsis
Boehmeriopsis is a small genus of flowering plants in the hemp family Cannabaceae, native to parts of Asia and known for its herbaceous species.
-
B.
Reissekia
Reissekia is a small genus of flowering plants in the buckthorn family Rhamnaceae, native to parts of South America.
-
C.
Ceratocystis
Ceratocystis is a genus of plant-pathogenic fungi known for causing wilt and canker diseases in a wide range of trees and crops.
-
D.
Ophiostoma piceae
Ophiostoma piceae is a species of sap-staining fungus commonly associated with coniferous trees and known for causing blue stain in lumber.
-
E.
Ophiostoma
Ophiostoma is a genus of fungi best known for containing species that cause Dutch elm disease in elm trees.
- 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: Claviceps purpurea Target entity description: Claviceps purpurea is a parasitic fungus best known for infecting cereal grains like rye and producing toxic ergot alkaloids that can cause ergotism in humans and animals.
-
A.
Boehmeriopsis
Boehmeriopsis is a small genus of flowering plants in the hemp family Cannabaceae, native to parts of Asia and known for its herbaceous species.
-
B.
Reissekia
Reissekia is a small genus of flowering plants in the buckthorn family Rhamnaceae, native to parts of South America.
-
C.
Ceratocystis
Ceratocystis is a genus of plant-pathogenic fungi known for causing wilt and canker diseases in a wide range of trees and crops.
-
D.
Ophiostoma piceae
Ophiostoma piceae is a species of sap-staining fungus commonly associated with coniferous trees and known for causing blue stain in lumber.
-
E.
Ophiostoma
Ophiostoma is a genus of fungi best known for containing species that cause Dutch elm disease in elm trees.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
fungus species
ⓘ
parasitic fungus ⓘ plant pathogen ⓘ |
| authority | (Fr.) Tul. ⓘ |
| binomialName | Claviceps purpurea ⓘ |
| biosafetyConcern | mycotoxin contamination of food and feed ⓘ |
| causesDisease | ergot disease in cereals ⓘ |
| class | Sordariomycetes ⓘ |
| commonName | ergot fungus ⓘ |
| controlMethod |
crop rotation
ⓘ
deep ploughing to bury sclerotia ⓘ field sanitation to reduce grass hosts ⓘ seed cleaning to remove sclerotia ⓘ use of resistant cultivars ⓘ |
| dispersal |
ascospores dispersed by wind
ⓘ
conidia spread by insects ⓘ conidia spread by rain splash ⓘ |
| ecotype |
G1 ecotype infecting short-grass species
ⓘ
G2 ecotype infecting tall-grass species ⓘ G3 ecotype infecting cereals and grasses in open habitats ⓘ |
| family | Clavicipitaceae ⓘ |
| genus |
Claviceps
ⓘ
linked to:
Claviceps purpurea
|
| geographicDistribution | temperate regions worldwide ⓘ |
| historicalImpact |
contaminated rye used in bread historically
ⓘ
responsible for historical ergotism outbreaks in Europe ⓘ |
| hostRange | narrow host specialization into different ecotypes ⓘ |
| infectionMode | infects flowers of host grasses ⓘ |
| kingdom | Fungi ⓘ |
| lifeCycleStage | overwinters as sclerotia in soil ⓘ |
| medicalRelevance |
source of compounds used in migraine treatment
ⓘ
source of compounds used in obstetrics ⓘ source of precursors for pharmaceutical drugs ⓘ |
| metabolism | secondary metabolism includes indole-diterpene and ergot alkaloid pathways ⓘ |
| order | Hypocreales ⓘ |
| pathogenicOn |
barley (Hordeum vulgare)
ⓘ
oats (Avena sativa) ⓘ other grasses (Poaceae) ⓘ rye (Secale cereale) ⓘ wheat (Triticum spp.) ⓘ |
| phylum | Ascomycota ⓘ |
| produces |
ergocristine
ⓘ
ergometrine ⓘ ergot alkaloids ⓘ ergotamine ⓘ lysergic acid derivatives ⓘ |
| structure |
forms sclerotia (ergots)
ⓘ
produces ascospores ⓘ produces conidia ⓘ |
| symptomInHost | replaces cereal grains with dark sclerotia ⓘ |
| toxinEffect |
causes ergotism in animals
ⓘ
causes ergotism in humans ⓘ |
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: Claviceps purpurea Description of subject: Claviceps purpurea is a parasitic fungus best known for infecting cereal grains like rye and producing toxic ergot alkaloids that can cause ergotism in humans and animals.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Claviceps purpurea