Biology:Poloidion

From HandWiki
Short description: Genus of algae

Poloidion
Scientific classification edit
(unranked): Viridiplantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Sphaeropleales
Family: Neochloridaceae
Genus: Poloidion
Pascher, 1944
Species:
P. didymos
Binomial name
Poloidion didymos
Pascher, 1944[1]

Poloidion is a genus of green algae in the family Neochloridaceae, containing the single species Poloidion didymos.[1] It is an extremely rare genus,[2] which has only been recorded once on moist soil and rocks in Austria.[3]

Poloidion consists of cells in groups of two, sometimes four or solitary. The cell wall is noticeably thickened on one side. Cells are ovoid, ellipsoidal or irregularly spherical. The chloroplast is cup-shaped, lacking a pyrenoid. Poloidion reproduces mainly by producing two autospores; it may also produce zoospores with two flagella.[4]

References

  1. 1.0 1.1 "Genus: Poloidion taxonomy browser". AlgaeBase version 4.2 World-wide electronic publication, National University of Ireland, Galway. 2007. http://www.algaebase.org/browse/taxonomy/#id=5583. Retrieved 2007-09-25. 
  2. Bourrelly, Pierre (1966) (in fr). Les algues d'eau douce. Initiation à la systématique. Tome I : Les Algues Vertes. Éditions N. Boubée et Cie. ISBN 9782850040641. 
  3. Komárek, J.; Fott, B. (1983) (in German). Chlorophyceae (Grünalgen), Ordnung Chlorococcales. Das Phytoplankton des Süßwassers. E. Schweizerbart'sche Verlagsbuchhandlung. pp. 1044. 
  4. Ettl, Hanuš; Gärtner, Georg (2013) (in de). Syllabus der Boden-, Luft- und Flechtenalgen (2nd ed.). Springer-Verlag. ISBN 9783642394614. 

Wikidata ☰ Q7225918 entry