Cymatopleura
| Cymatopleura | ||||||||||||
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Cymatopleura elliptica |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Cymatopleura | ||||||||||||
| W. Smith |
Cymatopleura is a genus of diatoms (Bacillariophyta) with 9 species in fresh water.
features
The cells have a two-counter shell, which is typical for diatoms. The bowl is rectangular in side view, in bowl view it is broadly elliptical or boat-shaped and often narrowed in the middle. There is a circumferential sewer raphe near the edge of the bowl . The shells are crosswise corrugated. The cell has a centrally located nucleus and a wall-mounted plastid , the two lobes of which lie under the shells, are golden brown and lobed. The cells are 25 to 300 micrometers long.
Asexual reproduction occurs through the typical dichotomy of diatoms. Sexual reproduction occurs through isogamy , with one gamete being formed per cell . The cells then enlarge during the auxospore formation.
Occurrence
Cymatopleura lives mainly epiphytically on aquatic plants and thread algae. They occur in standing and flowing waters.
species
The genus includes nine species
- Cymatopleura angulata
- Cymatopleura apiculata
- Cymatopleura brunii
- Cymatopleura cochlea
- Cymatopleura elliptica
- Cymatopleura hibernica
- Cymatopleura nobilis
- Cymatopleura solea
- Cymatopleura spiralis
supporting documents
- Karl-Heinz Linne von Berg, Michael Melkonian u. a .: The Kosmos algae guide. The most important freshwater algae under the microscope. Kosmos, Stuttgart 2004, ISBN 3-440-09719-6 , p. 210.
Web links
Individual evidence
- ↑ Cymatopleura on algaebase.org ( Memento of the original from June 6, 2019 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
