Amoeba proteus

Amoeba proteus
Amoeba proteus
Scientific classification
Domain:
Eukaryota
Phylum:
Amoebozoa
Class:
Tubulinea
Order:
Euamoebida
Family:
Amoebidae
Genus:
Amoeba
Species:
A. proteus
Binomial name
Amoeba proteus
(Pallas, 1766) Leidy, 1878
Synonyms

Volvox proteus Pallas, 1766

  • Proteus diffluens O.F. Müller, 1786
  • Chaos diffluens (O.F. Müller, 1786) Schaeffer, 1926

Amoeba proteus is a large species of amoeba closely related to another genus of giant amoebae, Chaos. As such, the species is sometimes given the alternative scientific name Chaos diffluens.[1][2]

Amoeba proteus in locomotion

This protozoan uses extensions called pseudopodia to move and to eat smaller unicellular organisms. Food is enveloped inside the cell's cytoplasm in a food vacuole,[3] where ingested matter is slowly broken down by enzymes. A. proteus inhabits freshwater environments and feeds on protozoans, algae, rotifers, and even other smaller amoebae. They are colorless, but they may have colored inclusions derived from their food.[4]

A. proteus possesses a thick-walled nucleus containing granular chromatin, and is therefore a eukaryote. Its membrane consists of a phospholipid bilayer similar to other eukaryotic organisms.[citation needed]

  1. ^ Taylor, Monica (August 1927). "The Development of the Nucleus of Amoeba Proteus. Pallas (Leidy) [= Chaos Diffluens (Schaeffer)]". Journal of Cell Science. S2-71 (282): 239–257. doi:10.1242/jcs.s2-71.282.239.
  2. ^ "Amoeba proteus (Amoeba) (Chaos diffluens)". Uniprot.org.
  3. ^ Nishihara, Eri; Shimmen, Teruo; Sonobe, Seiji (2004). "Functional Characterization of Contractile Vacuole Isolated from Amoeba proteus". Cell Structure and Function. 29 (4): 85–90. doi:10.1247/csf.29.85. PMID 15665503.
  4. ^ Rachael (8 February 2023). "Facts about Amoeba". RSScience. Retrieved 2 June 2023.