Stentor amethystinus
| Stentor amethystinus | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Supergroup: | Alveolata |
| Phylum: | Ciliophora |
| Class: | Heterotrichea |
| Order: | Heterotrichida |
| Family: | Stentoridae |
| Genus: | Stentor |
| Species: | S. amethystinus |
| Binomial name | |
| Stentor amethystinus Leidy, 1880 | |
Stentor amethystinus is a single-celled eukaryote. It is often 0.5 millimetres (0.02 in) long and is found in freshwater ponds and lakes. Algae live in symbiosis with Stentor amethystinus, providing food for the ciliate, which then protects the algae. Unlike many of its relatives, Stentor amethystinus is red-violet in color, due to the chemical amethystin. The chemical amethystin is structurally similar to the chemical stentorin, which belongs to Stentor coeruleus. Amethystinus tends to be more pyriform in shape, not stretching out like its relatives Stentor coeruleus. It has one large circular macronucleus in the cell, unlike the moniliform macronucleus found in some of its relatives. It also has many micronuclei, somewhere around the 20 mark, each being pigmented.
References
- 1 2 "Stentor amethystinus". ciliates.at. Retrieved 1 May 2020.
- ↑ Höfle, Gerhard; Reinecke, Silke; Laude, Uwe; Spitzner, Dietrich (2014). "Amethystin, the Coloring Principle of Stentor amethystinus". Journal of Natural Products. 77 (6): 1383–1389. doi:10.1021/np5001363. PMID 24882688.
- ↑ Kreutz, Martin. "Stentor amethystinus". Real Micro Life. Retrieved 2026-09-10.
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