Solenodinium fallax
Diagnosis
Diagnosis_Genus: Solenodinium Chatton 1923. Intracapsular parasites of thalassicoles, forming digitated plasmodia invading the host endoplasma. V-shaped chromosome typical for Syndiniales during sporogenesis.
Diagnosis_Species: S. fallax Chatton 1923. Hollande and Enjumet 1953 described young trophont containing a dinocaryon (specific to Dinophyceae), that may correspond to another parasite as typical syndinian mitoses occur during sporogenesis. Trophont grows first inside the nucleus and produced numerous digitations that expand and ramify. This extension is accompanied by active nuclear division. Then, the parasite perforates the nuclear envelop with its numerous digitations but the host nucleus membrane still persists. Nuclei are dense and arranged in 3-4 files inside digitations. Sporogenesis produced two types of spores (macro- and microspores) most of time, only one type of spore less often, may be depending on their maturity. Macrospores 12 µm long. V-shaped chromosome (5 in total).
Body_macrospores: 12 µm
Type species
This is the type species of the genus.
Type illustration / Type locality / Type specimen
Type host: Thalassicolla spumida
Tyoe locality: Banyuls-sur-mer
Ecology
Substrate: endozoic
Salinity: marine
Life cycle
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... |
---|---|---|---|
Cladococcus sp. | Alger Bay |
Parasites et cycle évolutif des radiolaires et des acanthaires. Bulletin des travaux. Station d'Aquiculture et de Pêche de Castiglione 7:151-176. (1955) |
|
Thalassicolla sp. |
Radiolaria. Springer New York, New York, NY (1983) |
||
Thalassicolla spumida | Gulf of Naples |
Contribution à la connaissance des radiolaires et de leurs parasites syndiniens. Annales des Sciences Naturelles, Zoologie et Biologie Animale Tome XV:405-437. (1953) |
|
Thalassicolla spumida | Banyuls-sur-mer |
Les péridiniens parasites des Radiolaires. C R Acad Sci Paris 177:1246-1249. (1923) |
|
Thalassicolla spumida | Villefranche-sur-mer | (1974) | |
Actinosphaera | Alger Bay |
Parasites et cycle évolutif des radiolaires et des acanthaires. Bulletin des travaux. Station d'Aquiculture et de Pêche de Castiglione 7:151-176. (1955) |