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Hatena
Scientific classification
Domain: Eukaryota
(unranked): Katablepharids
Genus: Hatena
Species: Hatena arenicola

Hatena (Hatena arenicola) is a one celled organism described in 2006.[1] The Hatena is a flagellate, and can resemble a plant at one stage of its life, in which it carries a photosynthesizing alga inside itself,[2] or an animal, acting as predator in another stage of its life. Researchers believe that this organism is in the process of endosymbiosis, in which one organism is incorporated into another, resulting in a completely new life form. Endosymbiosis is the process by which plants and animals originally diverged from the trunk of the tree of life.

The algal endosymbiont is a green alga from the genus Nephroselmis.[1] Unlike a fully integrated organelle, the Nephroselmis alga does not divide along with the host cell. When the host cell divides, one of the daughter cells receives the Nephroselmis cell and the other daughter returns to a heterotrophic lifestyle.[3]

The name is from a Japanese interjection meaning roughly "enigma",[2] or "how odd".

See also

References

  1. ^ a b Okamoto, Noriko; Inouye, Isao (October 2006). "Hatena arenicola gen. et sp. nov., a katablepharid undergoing probable plastid acquisition". Protist 157 (4): 401–19. doi:10.1016/j.protis.2006.05.011. PMID 16891155.  
  2. ^ a b Staedter, Tracy (14 October 2005). "Marine Microorganism Plays Both Host and Killer: Scientific American". Scientific American. http://www.scientificamerican.com/article.cfm?id=marine-microorganism-play. Retrieved 2009-07-06.  
  3. ^ Mittelmeier, Tm; Berthold, P; Danon, A; Lamb, Mr; Levitan, A; Rice, Me; Dieckmann, Cl (Dec 2008). "C2 domain protein MIN1 promotes eyespot organization in Chlamydomonas reinhardtii." (Free full text). Eukaryotic cell 7 (12): 2100–12. doi:10.1128/EC.00118-08. ISSN 1535-9778. PMID 18849467. PMC 2593190. http://ec.asm.org/cgi/pmidlookup?view=long&pmid=18849467.  

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