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Description of Acinetactis

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Biflagellated cells, rounded bodies measuring about 10 µm, giving rise to fine stiff pseudopodia with extrusome-like structures. The flagella arise from the same face of the cell, two contractile vacuoles. Few species, all from freshwater. Arms may be withdrawn from the anterior part or the whole cell when swimming. Type species: A. mirabilis Stokes, 1886.
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Acinetactis ( German )

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Acinetactis ist eine Gattung von heterotrophen Amöben, die zu den Cercozoa gestellt wird und alleine eine eigene Familie Acinetactidae bilden. Sie leben frei schwimmend im Süßwasser.

Merkmale

Die Vertreter sind Amöben mit zwei gleich langen Geißeln. Sie besitzen Axopodien von gleichmäßiger Länge, die bewegliche Körnchen beinhalten und von einem Centrosom in der Mitte der Zelle, neben dem Zellkern, ausgehen, allerdings nicht von einer Mulde des Zellkerns.

Systematik

Die Gattung besteht aus drei Gattungen:

Belege

  • David Bass, Ema E.-Y.Chao, Sergey Nikolaev, Akinori Yabuki, Ken-ichiro Ishida, Cédric Berney, Ursula Pakzad, Claudia Wylezich, Thomas Cavalier-Smith: Phylogeny of Novel Naked Filose and Reticulose Cercozoa: Granofilosea cl.n. and Proteomyxidea Revised. In: Protist. Bd. 160, Nr. 1, 2009, , S. 75–109, doi:10.1016/j.protis.2008.07.002.
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Acinetactis: Brief Summary ( German )

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Acinetactis ist eine Gattung von heterotrophen Amöben, die zu den Cercozoa gestellt wird und alleine eine eigene Familie Acinetactidae bilden. Sie leben frei schwimmend im Süßwasser.

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Acinetactis

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Acinetactis is a possible genus of protist first described in 1886 by A.C. Stokes, who also described the type species A. mirabilis.[1] In 1928, Valkanov reported the discovery of a second species, A. arnaudovii.[2] The most recently recorded specimen of A. mirabilis was reported in 1940, no Acinetactis specimens have been reported since.[3]

The validity and classification of this genus is contested. In 1914, Adolf Pascher cast doubt on Acinetactis, suggesting that it was a junior synonym of Dimorpha mutans.[4] Cavalier-Smith classified Acinetactis as a heliomonad in 1993.[5] Bass et al. suggested in 2009 that the genus was a cercozoan in the class Granofilosea.[6]

References

  1. ^ Stokes (1886), "Notices of new fresh-water infusoria", Proceedings of the American Philosophical Society, 23: 562–568
  2. ^ Valkanov (1928), "Beitrag zur Kenntnis der Flagellaten von Bulgarien", Izvestiya Na Bulgarskoto Botanichesko Druzhestvo, 1: 105–120
  3. ^ Lackey (1940), "The Microscopic Flora and Fauna of Tree Holes", Ohio Journal of Science, 40 (4): 186–192
  4. ^ Pascher (1914), Die Süsswasser-Flora: Deutschlands, Österreichs und der Schweiz, vol. 1, p. 51
  5. ^ Cavalier-Smith, T (1993). "Kingdom protozoa and its 18 phyla". Microbiological Reviews. 57 (4): 953–94. doi:10.1128/mmbr.57.4.953-994.1993. PMC 372943. PMID 8302218.
  6. ^ Bass D, Chao EE, Nikolaev S, et al. (February 2009). "Phylogeny of Novel Naked Filose and Reticulose Cercozoa: Granofilosea cl. n. and Proteomyxidea Revised". Protist. 160 (1): 75–109. doi:10.1016/j.protis.2008.07.002. PMID 18952499.
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Acinetactis: Brief Summary

provided by wikipedia EN

Acinetactis is a possible genus of protist first described in 1886 by A.C. Stokes, who also described the type species A. mirabilis. In 1928, Valkanov reported the discovery of a second species, A. arnaudovii. The most recently recorded specimen of A. mirabilis was reported in 1940, no Acinetactis specimens have been reported since.

The validity and classification of this genus is contested. In 1914, Adolf Pascher cast doubt on Acinetactis, suggesting that it was a junior synonym of Dimorpha mutans. Cavalier-Smith classified Acinetactis as a heliomonad in 1993. Bass et al. suggested in 2009 that the genus was a cercozoan in the class Granofilosea.

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