Diacronema vlkianum


Classification: ntax_non_cocco -> 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, emend. Green and Hibberd 1977
Rank: Species

Catalog entries: Diacronema vlkianum


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]

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

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: 1125-1136. gs

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


nannotaxlogo400px

Diacronema vlkianum compiled by Jeremy R. Young viewed: 15-5-2021

Taxon Search:
Advanced Search

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



Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics