Enallax
| Enallax | |
|---|---|
Scientific classification 
| |
| Clade: | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Chlorophyceae |
| Order: | Sphaeropleales |
| Family: | Scenedesmaceae |
| Genus: | Enallax Pascher |
| Species | |
| |
Enallax is a genus of green algae in the family Scenedesmaceae.[1] It is found in freshwater habitats, such as peat bogs or wet rocks.[2]
Enallax consists of colonies, termed coenobia. Each colony comprises two, four, or eight cells arranged in a row or two alternating rows. Cells are ellipsoidal, cylindrical or fusiform, with their longest axes aligned more or less parallel to each other. The cell walls have three to six longitudinal ribs running from pole to pole. Each cell has one parietal chloroplast with a single pyrenoid.[3] Cells are uninucleate.[2] Cells may accumulate droplets of oil giving them a reddish color. Enallax reproduces asexually via the formation of autospores. The autospores form into the shape of a colony while in the mother cell, and are released by a tear in the mother cell wall.[4]
The genus has existed since at least the Cretaceous period, as evidenced by amber deposits from France containing the fossil species Enallax napoleonis.[5]
References
[edit]- ^ See the NCBI webpage on Enallax. Data extracted from the "NCBI taxonomy resources". National Center for Biotechnology Information. Retrieved 2007-03-19.
- ^ a b Guiry, M.D.; Guiry, G.M. "Enallax". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2023-11-25.
- ^ Bicudo, Carlos E. M.; Menezes, Mariângela (2006). Gêneros de Algas de Águas Continentais do Brasil: chave para identificação e descrições (2 ed.). RiMa Editora. p. 508. ISBN 857656064X.
- ^ Komárek, J.; Fott, B. (1983). Chlorophyceae (Grünalgen), Ordnung Chlorococcales. Das Phytoplankton des Süßwassers (in German). E. Schweizerbart'sche Verlagsbuchhandlung. p. 1044.
- ^ Girard, Vincent (2009). "Evidence of Scenedesmaceae (Chlorophyta) from 100 million-year-old amber". Geodiversitas. 31 (1): 145–151. doi:10.5252/g2009n1a13. S2CID 129466659. Archived from the original on 11 May 2021. Retrieved 27 November 2021.
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