Nannotax3 - ntax_main - Diacronema vlkianum Nannotax3 - ntax_main - Diacronema vlkianum

Diacronema vlkianum


Classification: ntax_main -> other groups -> Haptophytes -> Pavlovales -> Pavlovaceae -> Diacronema -> Diacronema vlkianum
Sister taxa: D. ennorea, D. lutheri, D. noctivaga, D. virescens, D. viridis, D. vlkianum, D. sp.


Taxonomy:
Citation: Diacronema vlkianum Prauser 1958
Taxonomic rank: species
Basionym: Diacronema vlkianum * Prauser 1958

Synonyms:

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Morphology:
The dominant stage consists of motile cells that are round to ovate in shape with a slight ventral compression. The brownish-green plastid is parietal and flagella are ventrally inserted near a red eyespot. The anterior flagellum possesses hairs but no knob scales ; the posterior flagellum is naked. Both flagella exhibit a small distal attenuation and the haptonema is not always visible, but is present. The eyespot is composed of osmiophilic globules on the external face of the plastid adjacent to the posterior flagellum , which has a swelling with a distinctive regular striations as described for the type strain of D. vlkianum. The plastid has parallel thylakoid lamellae and does not possess a pyrenoid. [Bendif et al. 2011]

Cultures: Strains of this species are maintained in culture, for details see Roscoff Culture Collection.

Search data:
Lith size: 0->0µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bendif, E. M., et al. (2011). Integrative taxonomy of the Pavlovophyceae (Haptophyta): A reassessment. Protist. 162: 738-761. gs

Green, J. C. & Hibberd, D. J. (1977). The ultrastructure and taxonomy of Diacronema vlkianum (Prymnesiophyceae) with special reference to the haptonema and flagellar apparatus. Journal of the Marine Biological Association of the United Kingdom. 57(4): 1125-1136. gs

Prauser, H. (1958). Diacronema vlkianum, eine neue Chrysomonade. Archiv für Protistenkunde. 103: 117-128. gs


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Diacronema vlkianum compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-9-2026

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=20148 Go to Archive.is to create a permanent copy of this page - citation notes



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