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Euduboscquella nucleocola
Diagnosis
Diagnosis_Genus: Euduboscquella Coats & Bachvaroff 2012. Euduboscquellidae with trophont episome as disc-shaped shield bordered by a perinematic ring. Lamina pharyngea extending from perinematic ring into trophont cytoplasm. Food vacuole formed as trophont emerges from host giving rise to extracellular tomont. Multiple spore morphotypes possible, including dinokont and non-dinokont cells. Individual infections producing only one type of spore.
Diagnosis_Species: Trophont morphology/development: Early stages are located inside the host nucleus, are spherical (~20 µm diam.) and have an annular constriction; mature trophonts ≤ 125 µm diam.; a convex shield is present in parasites > 70 µm diam.; ~100 furrows rib the shield; digestive vacuole not formed.
Sporogenesis: Sporogenesis proceeds outside the host with flagellated sporocytes forming motile chains.
Spore morphology: Unknown.
Body_trophont_length: ≤ 125 µm
Etymology
Genus name is derived from the Greek eu- (= well, normal) and the genus name Duboscquella.
Type species
The type species for the genus is E. crenulata.
Type illustration / Type locality / Type specimen
Type host: Leptodiscus meduloides.
Ecology
Different trophonts of diffrent age can be detected in a single host, probably from independant infections.
Sociability_trophont: solitary
Sociability_trophont: sometime gregarious
Substrate: endozoic (endoparasite)
Salinity: marine
Salinity: brackish
Salinity: variable
Life cycle
Phases_alternance: haplontic
Generation: <1 month
Reproduction_mode: asexual
Symbiont: horizontal
Feeding behaviour
Mode of locomotion
Reference(s)
Observation site(s)
HOSTS
| Association with... | Region origin | Name of site | In reference... |
|---|---|---|---|
| Leptodiscus medusoides | Alger Bay |
(1964) Contribution à l’étude des péridiniens parasites. Cytologie, cycles évolutifs. Ann. Sci. Nat. Zool. 6:1-158. |
