Biomyxa
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| Scientific name | ||||||||||||
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Biomyxa is a genus of amoeba from the Cercozoa tribe.
features
The representatives of the genus are amoeboid protists and have stiff pseudopodia that can branch and network. There are cysts . The amoeba can contain one or more cell nuclei .
With regard to the ultrastructural features, it is not certain that they are really representatives of Biomyxa : The mitochondria have tubular cristae . The cells contain dark inclusions. The microtubules of the pseudopodia are not arranged geometrically.
Systematics
The exact systematic position of Biomyxa is unclear due to a lack of molecular genetic studies. Bass et al. placed them in 2008 in the group of Proteomyxidea, which is explicitly described as paraphyletic . According to Patterson, they could also be closer to the foraminifera .
The species number of Biomyxa is indicated by Patterson as small and uncertain.
supporting documents
- David J. Patterson: The Diversity of Eukaryotes . In: The American Naturalist. Volume 154, Supplement 4, October 1999, ISSN 0003-0147 , pp. 96-124, doi : 10.1086 / 303287 (= Laura A Katz: Evolutionary relationships among eukaryotes: a symposium. University of Chicago Press, Chicago 1999).
- 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. Vol. 160, No. 1, 2009, ISSN 1434-4610 , pp. 75-109, doi : 10.1016 / j.protis.2008.07.002 .