Metamonad

Metamonad
"Giardia lamblia", a parasitic diplomonad
Giardia lamblia, a parasitic diplomonad
Scientific classification Edit this classification
Domain: Eukaryota
(unranked): Excavata
Phylum: Metamonada
Grassé 1952 emend. Cavalier-Smith 2003
Classes & orders
Synonyms[2]
  • ?Archezoa
  • Centrosomea Chatton Villeneuve 1937
  • Metamonadina Grassé 1952
  • Polymastigota Butschli 1884
  • Tetramastigota Hulsmann & Hausmann 1994

The metamonads are a large group of flagellate amitochondriate microscopic eukaryotes. Their composition is not entirely settled, but they include the retortamonads, diplomonads, and possibly the parabasalids and oxymonads as well. These four groups are all anaerobic (many being aerotolerant anaerobes), occurring mostly as symbiotes or parasites of animals, as is the case with Giardia lamblia which causes diarrhea in mammals.[2]

  1. ^ Stairs, Courtney W.; Táborský, Petr; Salomaki, Eric D.; Kolisko, Martin; Pánek, Tomáš; Eme, Laura; Hradilová, Miluše; Vlček, Čestmír; Jerlström-Hultqvist, Jon; Roger, Andrew J.; Čepička, Ivan (2021-12-20). "Anaeramoebae are a divergent lineage of eukaryotes that shed light on the transition from anaerobic mitochondria to hydrogenosomes". Current Biology. 31 (24): 5605–5612.e5. doi:10.1016/j.cub.2021.10.010. ISSN 0960-9822. PMID 34710348. S2CID 240054026.
  2. ^ a b Al Jewari, Caesar; Baldauf, Sandra L. (2023-04-28). "An excavate root for the eukaryote tree of life". Science Advances. 9 (17): eade4973. Bibcode:2023SciA....9E4973A. doi:10.1126/sciadv.ade4973. ISSN 2375-2548. PMC 10146883. PMID 37115919.

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