Amyloodinium E.-M.Brown & Hovasse, 1946

Holotype species: Amyloodinium ocellatum (E.-M.Brown) E.-M.Brown & Hovasse

Original publication and holotype designation: Brown, E.-M. & Hovasse, R. (1946). Amyloodinium ocellatum Brown, a peridinian parasite on marine fishes A complementary study. Proceedings of the Zoological Society of London 116: 33-46.

Description: Ectoparasitic dinoflagellates of fishes with triphasic life history. Spores attach to fish skin, preferentially the gill surface, by a complicated attachment plate producing many rhizoids which penetrate the host cytoplasm with their tapering ends. A neck-like structure connects the attachment plate with the pyriform main cell body. Neck contains a ring of electron dense material which is also passed by an up to 10 &m long stomopode, functioning apparently phagocytotically. Food vacuoles are within the main cell body, the trophont. This stage lasts for some days, then the trophont detaches from the host forming dividing cysts (tomont) floating free. Motile dinospores are released from the tomont after several days and can infect new hosts. No chloroplasts. Optimally this entire life cycle takes less than one week. Sexuality not known. Parasitic in warm waters on a wide range of more than 100 marine and estuarine fishes. Can cause massive harm in aquaculture and aquaria. Cultivatable on fish gill cell lines.

Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 2017-05-23 by M.D. Guiry.

Taxonomic status: This name is of an entity that is currently accepted taxonomically.

Most recent taxonomic treatment adopted: Kawai, H. & Nakayama, T. (2015). Introduction (Heterokontobionta p.p.), Cryptophyta, Dinophyta, Haptophyta, Heterokontophyta (except Coscinodiscophyceae, Mediophyceae, Fragilariophyceae, Bacillariophyceae, Phaeophyceae, Eustigmatophyceae), Chlorarachniophyta, Euglenophyta. In: Syllabus of plant families. Adolf Engler's Syllabus der Pflanzenfamilien. Ed. 13. Phototrophic eukaryotic Algae. Glaucocystophyta, Cryptophyta, Dinophyta/Dinozoa, Haptophyta, Heterokontophyta/Ochrophyta, Chlorarachnniophyta/Cercozoa, Chlorophyta, Streptophyta p.p. (Frey, W. Eds), pp. 11-64, 103-139. Stuttgart: Borntraeger Science Publishers.

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Contributors
Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in CD format. These AlgaeBase descriptions are now being continually updated, and each current contributor is identified above. The PSA and AlgaeBase warmly acknowledge the generosity of all past and present contributors and particularly the work of Dr Parker.

Descriptions of chrysophyte genera were subsequently published in J. Kristiansen & H.R. Preisig (eds.). 2001. Encyclopedia of Chrysophyte Genera. Bibliotheca Phycologica 110: 1-260.

Linking to this page: https://www.algaebase.org/search/genus/detail/?genus_id=47275

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 23 May 2017. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024