Pedinella Vysotskii, 1887

Holotype species: Pedinella hexacostata Vysotskii

Original publication and holotype designation: Vysotskii, A.V. (1887). Mastigophora i Rhizopoda, naydennyya v Veysovom i Repnom ozorakh. Otchet ob ekskursii dlya izsledovaniya slavyanskikh solyanykh ozer Khar'kovskoy gubernii, v botanicheskom otnoshenii [Mastigophora and Rhizopoda, found in Veysovoe and Turnip lakes. Report on the excursion for the study of the Slavic salt lakes of the Kharkov province, in botanical terms]. pp. ii, 20, 2 plates. Kharkiv: Universitetskoy Tipografiya. [in Russian]

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Description: Cells naked, barrel-shaped with more or less prominent longitudinal ridges following the 6 elongated chloroplasts. Yellow-brown or greenish-brown. Chloroplasts, without pyrenoids, arranged concentrically around the median nucleus. Six short apical tentacles supported by microtubular triads protrude in a ring concentrically to the single apical flagellum. A paraflagellar rod supports the flagellar wing. A row of tubular (tripartite) hairs is located on the opposite side of flagellum. A relatively long cytoplasmic peduncle or stalk protrudes from the posterior part of the cell, attaching it to the substratum. The peduncle may detach temporarily at the distal end, allowing the cell to swim freely. Free-swimming Pedinella may be reminiscent of Pseudopedinella, with which it shares many morphological and anatomical features. The lack of pyrenoids in the Pedinella chloroplasts may, however, help distinguishing the genera. Nutrition is mixotrophic, bacteria are ingested by means of the anterior tentacles. The cell divides by longitudinal fission starting with the flagellum, and allowing for 2 cells to be observed with a partly common stalk or peduncle; sexual reproduction not observed. Found in shallow brackish waters, sessile on various substrates. Not common, Northern Europe

Information contributed by: J.Throndsen. The most recent alteration to this page was made on 2022-10-27 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 feminine.

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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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.

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Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 27 October 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway.; searched on 16 July 2024

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