Trimastix

Trimastix
Scientific classification
Domain:
(unranked):
Phylum:
Class:
Order:
Trimastigida
Family:
Trimastigidae
Genus:
Trimastix

Kent 1880
Type species
Trimastix marina
Kent 1880
Species
  • T. cionae
  • T. elaverinus
  • T. inaequalis
  • T. marina
Synonyms
  • Elvirea Parona Corrado 1886

Trimastix is a genus of excavate protists, the sole occupant of the order Trimastigida.[1] Trimastix are bacterivorous, free living and anaerobic. It was first observed in 1881 by William Kent.[2] There are few known species, and the genus's role in the ecosystem is largely unknown. However, it is known that they generally live in marine environments within the tissues of decaying organisms to maintain an anoxic environment.[3] Much interest in this group is related to its close association with other members of Preaxostyla. These organisms do not have classical mitochondria, and as such, much of the research involving these microbes is aimed at investigating the evolution of mitochondria.[4]

A freshwater flagellate of similar morphology used to be included in this genus as Trimastix pyriformis,[5] but was moved to Paratrimastix in 2015.[6]

  1. ^ Cavalier-Smith T (November 2003). "The excavate protozoan phyla Metamonada Grassé emend. (Anaeromonadea, Parabasalia, Carpediemonas, Eopharyngia) and Loukozoa emend. (Jakobea, Malawimonas): their evolutionary affinities and new higher taxa". Int. J. Syst. Evol. Microbiol. 53 (Pt 6): 1741–58. doi:10.1099/ijs.0.02548-0. PMID 14657102.
  2. ^ Cite error: The named reference kent1881 was invoked but never defined (see the help page).
  3. ^ Brugerolle, G., & Patterson, D. (1997). Ultrastructure of Trimastix convexa Hollande, an amitochondriate anaerobic flagellate with a previously undescribed organization. European Journal of Protistology, 33(2), 121-130.
  4. ^ Alastair Simpson & Vladimir Hampl. "Tree of Life: Trimastix". Tree of Life. Retrieved July 24, 2012.
  5. ^ Hampl V, Silberman JD, Stechmann A, Diaz-Triviño S, Johnson PJ, Roger AJ (2008). Redfield R (ed.). "Genetic evidence for a mitochondriate ancestry in the 'amitochondriate' flagellate Trimastix pyriformis". PLOS ONE. 3 (1): e1383. Bibcode:2008PLoSO...3.1383H. doi:10.1371/journal.pone.0001383. PMC 2148110. PMID 18167542.
  6. ^ Zhang, Qianqian; Táborský, Petr; Silberman, Jeffrey D.; Pánek, Tomáš; Čepička, Ivan; Simpson, Alastair G.B. (September 2015). "Marine Isolates of Trimastix marina Form a Plesiomorphic Deep-branching Lineage within Preaxostyla, Separate from Other Known Trimastigids (Paratrimastix n. gen.)". Protist. 166 (4): 468–491. doi:10.1016/j.protis.2015.07.003. ISSN 1434-4610. PMID 26312987.