Phytophthora nicotianae
E731205
Phytophthora nicotianae is a destructive oomycete plant pathogen best known for causing black shank and root rot diseases in crops such as tobacco and many ornamentals.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Phytophthora nicotianae canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8355164 — 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: Phytophthora nicotianae Context triple: [Phytophthora, notableSpecies, Phytophthora nicotianae]
-
A.
Phytophthora
Phytophthora is a genus of plant-pathogenic oomycetes known for causing devastating diseases such as late blight in potatoes and tomatoes.
-
B.
Phytophthora capsici
Phytophthora capsici is a destructive oomycete plant pathogen that causes blight, root rot, and fruit rot in a wide range of vegetable and cucurbit crops worldwide.
-
C.
Phytophthora infestans
Phytophthora infestans is a plant-pathogenic oomycete best known for causing potato late blight, the disease responsible for the devastating 19th-century Irish Great Famine.
-
D.
Plasmopara
Plasmopara is a genus of water mold pathogens best known for causing downy mildew diseases on various plants, including grapes and other crops.
-
E.
Meloidogyne incognita
Meloidogyne incognita is a highly destructive root-knot nematode species that parasitizes a wide range of crops, causing characteristic root galls and significant agricultural yield losses worldwide.
- 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: Phytophthora nicotianae Target entity description: Phytophthora nicotianae is a destructive oomycete plant pathogen best known for causing black shank and root rot diseases in crops such as tobacco and many ornamentals.
-
A.
Phytophthora
Phytophthora is a genus of plant-pathogenic oomycetes known for causing devastating diseases such as late blight in potatoes and tomatoes.
-
B.
Phytophthora capsici
Phytophthora capsici is a destructive oomycete plant pathogen that causes blight, root rot, and fruit rot in a wide range of vegetable and cucurbit crops worldwide.
-
C.
Phytophthora infestans
Phytophthora infestans is a plant-pathogenic oomycete best known for causing potato late blight, the disease responsible for the devastating 19th-century Irish Great Famine.
-
D.
Plasmopara
Plasmopara is a genus of water mold pathogens best known for causing downy mildew diseases on various plants, including grapes and other crops.
-
E.
Meloidogyne incognita
Meloidogyne incognita is a highly destructive root-knot nematode species that parasitizes a wide range of crops, causing characteristic root galls and significant agricultural yield losses worldwide.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
oomycete
ⓘ
plant pathogen ⓘ |
| affects |
ornamental plant production
ⓘ
tobacco production ⓘ |
| causes |
black shank of tobacco
ⓘ
root rot in ornamentals ⓘ root rot in tobacco ⓘ |
| causesSymptom |
plant death
ⓘ
plant wilting ⓘ root necrosis ⓘ stem lesions ⓘ |
| controlDifficulty | difficult to manage in infested fields ⓘ |
| discoveredIn | tobacco fields ⓘ |
| diseaseName |
black shank
ⓘ
root rot ⓘ |
| environmentalPreference |
warm conditions
ⓘ
wet soils ⓘ |
| family | Peronosporaceae ⓘ |
| genus | Phytophthora ⓘ |
| habitat |
agricultural soils
ⓘ
irrigation water ⓘ |
| host |
Nicotiana tabacum
ⓘ
citrus (Citrus spp.) ⓘ ornamental plants ⓘ pepper (Capsicum spp.) ⓘ tomato (Solanum lycopersicum) ⓘ |
| kingdom |
Stramenopila
ⓘ
linked to:
Chromista
|
| management |
crop rotation
ⓘ
fungicide applications ⓘ improved drainage ⓘ resistant cultivars ⓘ |
| pathogenicOn |
roots
ⓘ
stems ⓘ |
| reproduction |
asexual reproduction by sporangia
ⓘ
asexual reproduction by zoospores ⓘ sexual reproduction by oospores ⓘ |
| sporeType |
oospore
ⓘ
sporangium ⓘ zoospore ⓘ |
| survivalStructure | oospores in soil ⓘ |
| taxonRank | species ⓘ |
| transmission |
soilborne
ⓘ
waterborne ⓘ |
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: Phytophthora nicotianae Description of subject: Phytophthora nicotianae is a destructive oomycete plant pathogen best known for causing black shank and root rot diseases in crops such as tobacco and many ornamentals.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.