Chromatiales
E930667
Chromatiales is an order of purple sulfur bacteria within the Gammaproteobacteria, known for performing anoxygenic photosynthesis using reduced sulfur compounds.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Chromatiales canonical | 2 |
| Chromatiaceae | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11515306 — 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: Chromatiales Context triple: [Gammaproteobacteria, containsOrder, Chromatiales]
-
A.
Calosphaeriales
Calosphaeriales is an order of ascomycete fungi within the class Sordariomycetes, characterized by small, often wood-inhabiting perithecial species.
-
B.
Phyllachorales
Phyllachorales is an order of ascomycete fungi, many of which are plant pathogens that form characteristic dark stromata on their hosts.
-
C.
Coronophorales
Coronophorales is an order of ascomycete fungi characterized by perithecial fruiting bodies and often brightly pigmented, ornamented ascospores, commonly found on decaying wood and plant material.
-
D.
Meliolales
Meliolales is an order of ascomycete fungi best known for comprising many species of obligate plant parasites that form characteristic black mildew on leaves and stems.
-
E.
Trichosphaeriales
Trichosphaeriales is an order of ascomycete fungi within the class Sordariomycetes, comprising mostly saprobic species that decompose plant material.
- 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: Chromatiales Target entity description: Chromatiales is an order of purple sulfur bacteria within the Gammaproteobacteria, known for performing anoxygenic photosynthesis using reduced sulfur compounds.
-
A.
Calosphaeriales
Calosphaeriales is an order of ascomycete fungi within the class Sordariomycetes, characterized by small, often wood-inhabiting perithecial species.
-
B.
Phyllachorales
Phyllachorales is an order of ascomycete fungi, many of which are plant pathogens that form characteristic dark stromata on their hosts.
-
C.
Coronophorales
Coronophorales is an order of ascomycete fungi characterized by perithecial fruiting bodies and often brightly pigmented, ornamented ascospores, commonly found on decaying wood and plant material.
-
D.
Meliolales
Meliolales is an order of ascomycete fungi best known for comprising many species of obligate plant parasites that form characteristic black mildew on leaves and stems.
-
E.
Trichosphaeriales
Trichosphaeriales is an order of ascomycete fungi within the class Sordariomycetes, comprising mostly saprobic species that decompose plant material.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bacterial order
ⓘ
taxon ⓘ |
| carbonSource | carbon dioxide ⓘ |
| cellMorphology |
Gram-negative
ⓘ
motile by flagella ⓘ rod-shaped ⓘ |
| commonName | purple sulfur bacteria ⓘ |
| containsFamily |
Chromatiaceae
ⓘ
Ectothiorhodospiraceae ⓘ Thioalkalispiraceae ⓘ Wenzhouxiangellaceae ⓘ |
| containsGenus |
Allochromatium
ⓘ
Chromatium ⓘ Ectothiorhodospira ⓘ
linked to:
Ectothiorhodospiraceae
Thiocapsa ⓘ Thiocystis ⓘ
linked to:
Thiocystis violascens
|
| discoveredBy | Hans G. Trüper ⓘ |
| domain | Bacteria ⓘ |
| ecologicalRole |
primary producer in anoxic zones
ⓘ
sulfur cycle participant ⓘ |
| electronDonor |
elemental sulfur
ⓘ
hydrogen sulfide ⓘ reduced sulfur compounds ⓘ thiosulfate ⓘ |
| energySource | light ⓘ |
| foundIn |
chemocline of meromictic lakes
ⓘ
hypolimnion of eutrophic lakes ⓘ |
| habitat |
aquatic environments
ⓘ
marine environments ⓘ microoxic zones ⓘ stratified lakes ⓘ sulfur-rich sediments ⓘ |
| metabolicCapability |
intracellular sulfur globule formation
ⓘ
oxidation of sulfide to sulfate ⓘ |
| metabolismType | anoxygenic phototroph ⓘ |
| namedBy | Hans G. Trüper ⓘ |
| oxygenRequirement | anaerobic ⓘ |
| parentTaxon |
Gammaproteobacteria
ⓘ
Proteobacteria ⓘ |
| photosynthesisType | anoxygenic photosynthesis ⓘ |
| pigment |
bacteriochlorophyll a
ⓘ
bacteriochlorophyll b ⓘ carotenoids ⓘ |
| taxonRank | order ⓘ |
| trophicType | photolithoautotroph ⓘ |
| typeFamily | Chromatiaceae ⓘ |
| typeGenus | Chromatium ⓘ |
| yearDescribed | 1975 ⓘ |
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: Chromatiales Description of subject: Chromatiales is an order of purple sulfur bacteria within the Gammaproteobacteria, known for performing anoxygenic photosynthesis using reduced sulfur compounds.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Chromatiales