Dinema platysomum

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Dinema platysomum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Clade: Discoba
Phylum: Euglenozoa
Class: Euglenida
Order: Anisonemida
Family: Anisonemidae
Genus: Dinema
Species:
D. platysomum
Binomial name
Dinema platysomum
(Skuja) W.J.Lee & D.J.Patterson [1]
Synonyms [1]
  • Anisonema platysomumSkuja

The flagellated alga Dinema platysomum, synonym Anisonema platysomum, [1] is the first eukaryote in which magnetotactic structures have been discovered. Monje & Baran (2004) describe how this euglenoid alga stores magnetite in a similar way that already discovered magnetotactic bacteria do. It has been shown that the cells contain magnetite particles aligned with the longitudinal axis of the alga, and each magnetite chain is a permanent dipole. [2] The observed magnetic momentum of the cell has been estimated to be 1000 times stronger than those of typical magnetotactic bacteria. [3]

The species was first described in 1939 as Anisonema platysomum, [4] and transferred to the genus Dinema in 2000. [1]

References

  1. 1 2 3 4 Guiry, M.D.; Guiry, G.M. "Dinema platysomum". AlgaeBase . University of Galway . Retrieved 2023-05-19.
  2. Monje, Paula; Baran, Enrique (2004). "Plant biomineralization". Advances in Plant Physiology (7): 395–410. ISBN   8172333811.
  3. Torres de Araujo, F.; Pires, M.; Frankel, R.; Bicudo, C. (1986). "Magnetite and Magnetotaxis in Algae". Biophysical Journal. 50 (2): 375–378. Bibcode:1986BpJ....50..375D. doi:10.1016/S0006-3495(86)83471-3. PMC   1329754 . PMID   19431684.
  4. Skuja, H. (1939). "Beitrag zur Algenflora Lettlands II" [Contribution to the algae flora of Latvia II]. Acta Horti Botanici Universitatis Latviensis (in German).