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Calkinsia

Calkinsia
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Discoba
Phylum: Euglenozoa
Class: Symbiontida
Order: Postgaardida
Family: Calkinsiidae
Cavalier-Smith, 2016[1]
Genus: Calkinsia
Lackey, 1960 non Nieuwland, 1916
Species:
C. aurea
Binomial name
Calkinsia aurea
Lackey, 1960

Calkinsia is a monotypic genus of excavates comprising the single species Calkinsia aurea.[2] It lives in low-oxygen seafloor environments.[3][4] It is not classified in any of the three well-known groups of the Euglenozoa (Kinetoplastida, Euglenida or Diplonemida), but is placed in its own group, the Symbiontida (along with some DNA sequences which were found in marine environments but not identified with known organisms).[3][5][6] Some authors have classified Calkinsia alongside Postgaardi, but Postgaardi has not been studied well enough to test this hypothesis.[3]

The genus name of Calkinsia is in honour of Gary Nathan Calkins (1869 – 1943), who was an American protozoologist and a professor at Columbia University. He wrote several landmark textbooks on the biology of the protozoa.[7]

References

  1. ^ Cavalier-Smith, Thomas (2016-10-01). "Higher classification and phylogeny of Euglenozoa". European Journal of Protistology. 56: 250–276. doi:10.1016/j.ejop.2016.09.003. ISSN 0932-4739.
  2. ^ Guiry, M.D.; Guiry, G.M. (2008). "Calkinsia". AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. Retrieved 2009-02-22.
  3. ^ a b c Yubuki, N; Edgcomb, Vp; Bernhard, Jm; Leander, Bs (Jan 2009). "Ultrastructure and molecular phylogeny of Calkinsia aureus: cellular identity of a novel clade of deep-sea euglenozoans with epibiotic bacteria". BMC Microbiology. 9: 16. doi:10.1186/1471-2180-9-16. PMC 2656514. PMID 19173734.
  4. ^ Amend, Jan P.; Edwards, Katrina J.; Lyons, Timothy D. (2004). Sulfur biogeochemistry: past and present. Boulder, Colo.: Geological Society of America. ISBN 978-0-8137-2379-2.
  5. ^ Yubuki, Naoji; Leander, Brian S. (18 July 2018). "Diversity and Evolutionary History of the Symbiontida (Euglenozoa)". Frontiers in Ecology and Evolution. 6 (100). doi:10.3389/fevo.2018.00100.
  6. ^ Kostygov, Alexei Y.; Karnkowska, Anna; Votýpka, Jan; Tashyreva, Daria; Maciszewski, Kacper; Yurchenko, Vyacheslav; Lukeš, Julius (10 March 2021). "Euglenozoa: taxonomy, diversity and ecology, symbioses and viruses". Open Biology. 11 (3: 200407) 200407. doi:10.1098/rsob.200407. ISSN 2046-2441. PMC 8061765. PMID 33715388.
  7. ^ Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names] (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN 978-3-946292-41-8. S2CID 246307410.

Further reading

  • Yubuki, Naoji; Simpson, Alastair; Leander, Brian (January 2013). "Reconstruction of the feeding apparatus in Postgaardi mariagerensis provides evidence for character evolution within the Symbiontida (Euglenozoa)". European Journal of Protistology. 49 (1): 32–39. doi:10.1016/j.ejop.2012.07.001. PMID 22925570.
  • Lackey, James B. (1960). "Calkinsia aureus gen. et sp. nov:, a New Marine Euglenid". Transactions of the American Microscopical Society. 79 (1): 105–107. doi:10.2307/3223980. JSTOR 3223980.


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