Biology:Marthea
| Marthea | |
|---|---|
| |
| Marthea tetras | |
Scientific classification 
| |
| (unranked): | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Chlorophyceae |
| Order: | Sphaeropleales |
| Family: | Characiaceae |
| Genus: | Marthea Pascher, 1918 |
| Species: | M. tetras
|
| Binomial name | |
| Marthea tetras Pascher, 1918[1]
| |
Marthea is a genus of green algae in the family Characiaceae, containing the single species Marthea tetras.[1] It is an extremely rare genus; it has only been recorded once,[1] as freshwater phytoplankton from its original locality in the Bohemian Forest region of the Czech Republic.[2]
Marthea tetras consists of cells in colonies of four in a cross shape. Cells are spindle-shaped, with the base attached to a central mass of mucilage, while the apex of the cells are pointed. The cell wall is smooth. Cells contain one nucleus and a single, parietal chloroplast with one pyrenoid.[1]
Marthea reproduces asexually by autospores.[1] Four autospores form from one protoplast. Unusually, the autospores show amoeboid movement for some time, before settling in their usual shape and being released from the sporangium.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Guiry, M.D.; Guiry, G.M. (2008). "Marthea". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org/browse/taxonomy/?id=47396.
- ↑ Komárek, J.; Fott, B. (1983) (in de). Chlorophyceae (Grünalgen), Ordnung Chlorococcales. Das Phytoplankton des Süßwassers. E. Schweizerbart'sche Verlagsbuchhandlung. p. 1044.
- ↑ Philipose, M. T. (1967). Chlorococcales. Monographs on algae. 8. New Delhi: Indian Council of Agricultural Research. p. 365.
Wikidata ☰ Q6774653 entry
 |  |
