Postciliodesmatophora
Postciliodesmatophora | ||||||||||||
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Systematics | ||||||||||||
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Scientific name | ||||||||||||
Postciliodesmatophora | ||||||||||||
Gerassimova & Seravin, 1976 |
The Postciliodesmatophora are one of the two sub-taxa of the ciliate animals . They comprise almost 60 genera and are therefore significantly smaller than their sister taxon Intramacronucleata .
features
Postciliodesmatophora are comparatively large and usually elongated in shape. They are very contractile, so they can contract a lot. The alveoli of the outer layer are only weakly pronounced, the somatic kinetes (the rows of eyelashes on the "oral cavity") have dikinetides with so-called postciliodesmata (fibers consisting of overlapping, stacked postciliar microtubule bands ), after which the group was named. Parasomalsäcke missing as somatic Extrusome come Mucocysten , Rhabdocysten and Pigmentocysten ago. The structures of the oral area are extremely variable.
Cell division is always isotomic, i.e. into two daughter cells of the same size. The Proter's oral system goes through a phase of regression and redevelopment before or during cytokinesis .
ecology
Representatives of the Postciliodesmatophora are widespread. They are both sessile and free-swimming; they rarely live as symbionts .
Systematics
The group is divided into two sub-taxas:
proof
Footnotes directly after a statement confirm this individual statement, footnotes directly after a punctuation mark the entire preceding sentence. Footnotes after a space refer to the entire preceding text.
- ↑ a b c d Denis H. Lynn: The Ciliated Protozoa , p. 341, ISBN 978-1-4020-8238-2 , 2010