Coelastrum
| Coelastrum | ||||||||||||
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Coelastrum sp. |
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| Scientific name | ||||||||||||
| Coelastrum | ||||||||||||
| Nägeli |
Coelastrum is a genus of colony-forming green algae from the class of Chlorophyceae .
features
The representatives form hollow colonies that are spherical or polygonal. They usually consist of 8 to 32, rarely up to 128 individual cells (always 2 n ). The diameter of the colony is up to 120 micrometers. The cell wall is smooth or warty. Neighboring cells are connected to one another by cell wall processes. The cells have a single, wall-mounted chloroplast with a pyrenoid .
Asexual reproduction occurs through autocolony formation, i. That is, a new colony forms within a mother cell wall. Sexual reproduction is not known in Coelastrum .
Occurrence
Coelastrum occurs in the plankton of oligotrophic and eutrophic waters.
Systematics
The genus Coelastrum includes a few species. Algaebase names 20 recognized species.
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. 190.
Individual evidence
- ↑ Coelastrum 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. , accessed March 20, 2011.
