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Raphidocelis subcapitata

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(Redirected from Selenastrum capricornutum) Species of alga

Raphidocelis subcapitata
Scientific classification Edit this classification
Clade: Viridiplantae
Division: Chlorophyta
Class: Chlorophyceae
Order: Sphaeropleales
Family: Selenastraceae
Genus: Raphidocelis
Species: R. subcapitata
Binomial name
Raphidocelis subcapitata
(Korshikov) Nygaard, Komárek, J.Kristiansen & O.M.Skulberg
Synonyms
  • Kirchneriella subcapitata Korshikov
  • Pseudokirchneriella subcapitata (Korshikov) Hindák

Raphidocelis subcapitata, formerly known as Selenastrum capricornutum and Pseudokirchneriella subcapitata is a microalga. 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. 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. 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.

References

  1. 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.
  2. Komárek, J.; Fott, B. (1983). Chlorophyceae (Grünalgen), Ordnung Chlorococcales. Das Phytoplankton des Süßwassers (in German). E. Schweizerbart'sche Verlagsbuchhandlung. p. 1044.
  3. "Selenastrum". Archived from the original on 12 December 2011. Retrieved 9 February 2012.
  4. 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.
  5. 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.
Taxon identifiers
Raphidocelis subcapitata


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