Amoeba proteus
Oxford Dictionary of Genetics:
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Amoeba Proteus
a common species of rhizopod; a giant protozoan used for microsurgical nuclear transplantations. See Chronology, 1967, Goldstein and Prescott.
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Amoeba proteus
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Amoeba proteus
| Amoeba proteus | |
|---|---|
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| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Amoebozoa |
| Phylum: | Tubulinea |
| Order: | Tubulinida |
| Family: | Amoebidae |
| Genus: | Amoeba |
| Species: | A. proteus |
| Binomial name | |
| Amoeba proteus |
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Amoeba proteus, previously Chaos diffluens, is an amoeba closely related to the Giant Amoebae. These are the species that are commonly bought at science supply stores.
This small protozoan uses tentacular protuberances called pseudopodia to move and phagocytose smaller unicellular organisms, which are enveloped inside the cell's cytoplasm in a food vacuole,[1] 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 mostly gram negative.
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See also
References
- ^ Nishihara E, Shimmen T, Sonobe S (December 2004). "Functional characterization of contractile vacuole isolated from Amoeba proteus" ([dead link]). Cell Struct. Funct. 29 (4): 85–90. doi:10.1247/csf.29.85. PMID 15665503. http://joi.jlc.jst.go.jp/JST.JSTAGE/csf/29.85?from=PubMed.
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Oxford Dictionary of Genetics
A Dictionary of Genetics. © 2006
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