Paramyxida
| Paramyxida | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Paramyxida | ||||||||||||
| Chatton , 1911 |
The Paramyxida are a taxon of unicellular parasites that belong to the Cercozoa tribe .
features
The infectious cells are amoeba . They form daughter cells by division of the infectious cell, which remain within the mother cell. The Paramyxida are therefore viewed as multicellular. The cells can develop into multicellular spores .
The Paramyxida have a complicated process of nucleus and cell division.
Ultrastructurally, they are characterized by a reduced form of the centrioles with nine microtubules . These are associated with the microtubules of the spindle apparatus . The nuclear envelope tears during the nuclear division.
Way of life
The Paramyxida live parasitically in the digestive tract of marine invertebrates . They feed here osmotrophically .
Systematics
The Paramyxida are placed in the group of Ascetosporea, a group of parasitic unicellular organisms. There are three types of them:
supporting documents
- David J. Patterson: The Diversity of Eukaryotes . The American Naturalist, Vol. 65, Supplement, 1999, pp. 96-124.
Individual evidence
- ↑ 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 . Protist, 2008 doi : 10.1016 / j.protis.2008.07.002