Raphidocelis subcapitata, formerly known as Selenastrum capricornutum and Pseudokirchneriella subcapitata is a microalga.[1] This microalga presents a curved and twisted appearance like a sickle. The cells are normally presented in a solitary form in culture, although it may also be present in small colonies. It has a length between 7 and 15 μm, and a width between 1.2 and 3 μm. A single chloroplast is present, filling nearly the entire cell; it lacks a pyrenoid.[2] It is commonly used as a bioindicator species to assess the levels of nutrients or toxic substances in fresh water environments. This species is quite sensitive to the presence of toxic substances including metals and has a ubiquitous distribution, so is broadly used in ecotoxicology.[3][4] This species has been found to be more competitive than Chlorella vulgaris at low sodium chloride concentrations, but C. vulgaris was more competitive under salt stress.[5][non-primary source needed]
| Raphidocelis subcapitata | |
|---|---|
Scientific classification 
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| Clade: | Viridiplantae |
| Division: | Chlorophyta |
| Class: | Chlorophyceae |
| Order: | Sphaeropleales |
| Family: | Selenastraceae |
| Genus: | Raphidocelis |
| Species: | R. subcapitata
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| Binomial name | |
| Raphidocelis subcapitata (Korshikov) Nygaard, Komárek, J.Kristiansen & O.M.Skulberg
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| Synonyms | |
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References
edit- ^ M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2013. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 2 May 2013.
- ^ Komárek, J.; Fott, B. (1983). Chlorophyceae (Grünalgen), Ordnung Chlorococcales. Das Phytoplankton des Süßwassers (in German). E. Schweizerbart'sche Verlagsbuchhandlung. p. 1044.
- ^ "Selenastrum". Archived from the original on 12 December 2011. Retrieved 9 February 2012.
- ^ Heijerick, D.G.; De Schamphelaere, K.A.C.; Janssen, C.R. (September 2002). "Biotic ligand model development predicting Zn toxicity to the alga Pseudokirchneriella subcapitata: possibilities and limitations". Comparative Biochemistry and Physiology C. 133 (1–2): 207–218. doi:10.1016/S1532-0456(02)00077-7. PMID 12356528.
- ^ Venâncio, C.; Anselmo, E.; Soares, A.; Lopes, I. (1 February 2017). "Does increased salinity influence the competitive outcome of two producer species?". Environmental Science and Pollution Research. 24 (6): 5888–5897. doi:10.1007/s11356-016-8346-x. ISSN 0944-1344. PMID 28064393. S2CID 26518865.
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