Amoeba proteus
| Amoeba proteus | |
|---|---|
 | |
| Scientific classification | |
| Domain: | Eukaryota |
| Phylum: | Amoebozoa |
| Class: | Tubulinea |
| Order: | Tubulinida |
| Family: | Amoebidae |
| Genus: | Amoeba |
| Species: | A. proteus |
| Binomial name | |
| Amoeba proteus (Pallas, 1766) Leidy, 1878 | |
| Synonyms | |
| |
Amoeba , alternatively Chaos diffluens,[1][2] is an amoeba closely related to the giant amoebae and a species commonly bought at science supply stores.
This small protozoan uses tentacular protuberances called pseudopodia to move and phagocytose smaller unicellular organisms,(which may be greater in size than of amoeba), which are enveloped inside the cell's cytoplasm in a food vacuole,[3] where they are slowly broken down by enzymes. Amoeba proteus is very well known for its extending pseudopodia. It occupies freshwater environments and feeds on other protozoans, algae, rotifers, and even other smaller amoebae. Due to phytochromes, A. proteus may appear in a variety of colors (often yellow, green and purple) under a microscope.
A. proteus possesses a nucleus containing granular chromatin, and is therefore a eukaryote. Its membrane is a phospholipid bilayer similar to other Eukaryotic organisms.
Video gallery
 Amoeba proteus in motion |
 Amoeba engulfing a diatom |
See also
References
- ↑ http://jcs.biologists.org/content/joces/s2-71/282/239.full.pdf
- ↑ http://www.uniprot.org/taxonomy/5775
- ↑ Nishihara E, Shimmen T, Sonobe S (December 2004). "Functional characterization of contractile vacuole isolated from Amoeba proteus". Cell Struct. Funct. 29 (4): 85–90. doi:10.1247/csf.29.85. PMID 15665503.