Diplostauron Korshikov, 1925

Holotype species: Diplostauron angulosum Korshikov

Original publication and holotype designation: Korshikov, A.A. (1925). Materialy k morfologii i sistematike gruppy Volvocales. I [Materials for the morphology and systematics of the Volvokales group. I]. Russkii Arkhiv Protistologii 4(3-4): 153-197, 5 figures, plates 7-9. [in Russian with German abstract]

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Description: Unicellular thalli cylindrical to flattened. Polar views reveal four anterior horns and four posterior horns that are rotated 45% with respect to each other. Prominence of the horns varies depending on the species. Two isokont flagella inserted at the apex. Papilla, pyrenoid, and stigma present. Two anterior contractile vacuoles. Asexual reproduction by zoosporogenesis resulting in two to eight motile daughter cells. Plane of cell division is longitudinal or transverse preceded by a 90% rotation of the protoplast. Mature form develops following liberation. Palmella stages have been reported. Sexual reproduction is isogamous and heterothallic. Gametes, which resemble zoospores, initially walled but are naked at fusion. Fused gametes form quadriflagellate planozygote. Spherical zygotes smooth or warty.

Information contributed by: M. Buchheim. The most recent alteration to this page was made on 2023-06-06 by M.D. Guiry.

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: Masjuk, N.P., Lilitska, G.G. & Kapustin, D.O. (2011). Chlamydomonadales. In: Algae of Ukraine: diversity, nomenclature, taxonomy, ecology and geography. Volume 3: Chlorophyta. (Tsarenko, P.M., Wasser, S.P. & Nevo, E. Eds), pp. 157-218. Ruggell: A.R.A. Gantner Verlag K.-G..

Comments: Diplostauron is a freshwater genus that has been found in Europe, Australia, India, and the United States. No ultrastructural, biochemical, or molecular data are available for this organism

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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Some of the descriptions included in AlgaeBase were originally from the unpublished Encyclopedia of Algal Genera, organised in the 1990s by Dr Bruce Parker on behalf of the Phycological Society of America (PSA) and intended to be published in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=43374

Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 06 June 2023. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 24 April 2024