Cercomonas

Cercomonas
Cercomonas sp.
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Sar
Clade: Rhizaria
Phylum: Cercozoa
Subphylum: Filosa
Order: Cercomonadida
Family: Cercomonadidae
Genus: Cercomonas
Dujardin 1841, emend. Karpov et al. 2006
Type species
Cercomonas longicauda
Dujardin 1841
Species

See text

Cercomonas is a genus of flagellate cercomonads.

Characteristics

Members of this genus of cercomonads move by gliding. They are typically spindle-shaped. They have a trailing posterior flagellum that usually extends all the way to the rear of the cell body. The pseudopods and filopodia, which are generally unbranched, are broad and flat-lobed and occur frequently. The nuclear extension extends distinctly toward the nearby centrioles. Tubular mitochondrial cristae are usually slightly flattened. A proximal cartwheel is typically present in the anterior centriole but not in the posterior centriole. Both centrioles contain a thick distal compartment with a more distinct, diaphragm-like outer region. A fibrillar striated projection is present only in the anterior centriole. Posterior centriole has a single proximal transverse plate. Extrusomes can be considered nearly isodiametric osmiophilic bodies. Some species also have a complex life cycle that includes multinucleate plasmodia and spherical cysts, which can be either smooth or rough walled.[1]

Taxonomy

It belongs to the family Cercomonadidae, order Cercomonadida and phylum Cercozoa[1][2] and contains eighty-three species.[3]

Species:[3]

References

  1. ^ a b Karpov, Serguei A.; Bass, David; Mylnikov, Alexander P.; Cavalier-Smith, Thomas (2006-06-13). "Molecular Phylogeny of Cercomonadidae and Kinetid Patterns of Cercomonas and Eocercomonas gen. nov. (Cercomonadida, Cercozoa)". Protist. 157 (2): 125–158. doi:10.1016/j.protis.2006.01.001. ISSN 1434-4610.
  2. ^ Adl, Sina M.; Bass, David; Lane, Christopher E.; Lukeš, Julius; Schoch, Conrad L.; Smirnov, Alexey; Agatha, Sabine; Berney, Cedric; Brown, Matthew W.; Burki, Fabien; Cárdenas, Paco; Čepička, Ivan; Chistyakova, Lyudmila; del Campo, Javier; Dunthorn, Micah (2019). "Revisions to the Classification, Nomenclature, and Diversity of Eukaryotes". Journal of Eukaryotic Microbiology. 66 (1): 4–119. doi:10.1111/jeu.12691. ISSN 1550-7408. PMC 6492006. PMID 30257078.
  3. ^ a b Guiry, M.D. & Guiry, G.M. 2026. AlgaeBase. World-wide electronic publication, University of Galway. https://www.algaebase.org; searched on 19 July 2026.

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