Kryptoperidinium Lindemann, 1924

Holotype species: Kryptoperidinium foliaceum (F.Stein) Lindemann

Original publication and holotype designation: Lindemann, E. (1924). Der Bau der Hülle bei Heterocapsa und Kryptoperidinium foliaceum (Stein) n. nom. (Zugleich eine vorläufige Mitteilund). Botanisches Archiv 5(1-2): 114-120, 20 figures.

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Description: Medium-sized (15-55 µm), dorsiventrally much compressed cell of oval outline, concave if seen from the apical pole. Cingulum median, circular; sulcus restricted to the hypocone. Thin cellulosic plates with the plate formula: Po, 3-4', 2a, 6-7", 5'", 2"". Cell contents numerous chloroplasts, a conspicuous stigma located in the sulcus. As in Durinskia, the chloroplasts are not of the typical dinoflagellate ultrastructure and pigmentation; they lack peridinin but contain fucoxanthin. They belong to an endosymbiont with eukaryotic nucleus believed derived from a chrysophycean alga. The endosymbiont is separated from the dinoflagellate by a single membrane with equally distributed intramembranous particles on both sides but which are of different size. Mitochondria are reduced in the dinoflagellate but normal in the endosymbiont; the endosymbiont lacks a Golgi apparatus and, presumably, microtubules. Kryptoperidinium forms dense blooms in coastal waters and in brackish ponds, forming ovoid cysts with a thick hyaline cell wall.

Information contributed by: M. Elbrächter. The most recent alteration to this page was made on 2023-01-27 by E.A. Molinari Novoa.

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

Gender: This genus name is currently treated as neuter.

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=44652

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 27 January 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 22 November 2024