Parvilucifera rostrata
Diagnosis
Diagnosis_species: Endoparasitoid infecting the cytoplasm of a wide range of dinoflagellates. The trophocyte develops inside the host. The sporangium is released into water. Sporangium wall covered by numerous processes 0.4-0.45 µm in length. Zoospores (6 µm in length, 1.8 µm in width) with two unequal flagella, anterior rostrum, are released from sporangium via opercules. Zoospore has open conoid, rhoptry, microneme-like structures root and large vacuole with electron translucent contents.
Etymology
rostrata referring to the rostrum of zoospores.
Type species
The type species (holotype) of the genus Parvilucifera is P. infectans.
Type illustration / Type locality / Type specimen
Type_illustration: Figs 4A-C, 5A-C from Lepelletier et al. 2014, Protist, 165:31-49,
Type_locality: material originally collected in the Penzé estuary on the Brittany coast (English Channel, France) in June 2011.
Type_specimen: RCC2800, cryopreserved strain deposited in the Roscoff Culture Collection.
Ecology
Substrate_spores: planktonic
Substrate_sporangium: sediment
Substrate_trophont: endophytic
Socialibility_spores: solitary
Sociability_trophont: solitary
Sociability_trophont: gregarious
Sociability_sporangium: solitary
Salinity: marine
Salinity: variable (estuary)
pH : neutral
Life cycle
Lytic cycle, zoosporic parasite. Sporangia are long-term resistant stages, that can be cryopreserved or store in the fridge.
Generation: <1 month
Reproduction_mode: asexual
Resting_stage: sporangium_asexual
Symbiont: horizontal_active-penetration