Thecamonas trahens
| Thecamonas trahens | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Clade: | Obazoa |
| Class: | Thecomonadea |
| Order: | Apusomonadida |
| Family: | Apusomonadidae |
| Genus: | Thecamonas |
| Species: | T. trahens |
| Binomial name | |
| Thecamonas trahens Larsen & Patterson, 1990[1] | |
| Synonyms[1] | |
|
Amastigonas trahens | |
Thecamonas trahens is a single-celled eukaryotic organism belonging to the supergroup Opisthokonta and the lineage Apusomonadida, specifically within the high level group Amorphea.[2] Members of this family, known as apusomonads, are gliding heterotrophic protozoan zooflagellates that primarily feed on bacteria and other prokaryotes.[3]
Description
Thecamonas has a 'tusk' that projects outwards anteriorly, and two flagella. Their anterior basal body associates with one leftward-travelling micro tubular root, and a 'ribbon'-like organisation of six microtubules that travel down the right side of the cell.[3]
Taxonomy
Thecamonas trahens is a species within the family Apusomonadidae, a group that is a sister taxon to the Opisthokonts.[2]
Ecology
Thecamonas trahens occurs in marine, freshwater, and terrestrial environments, and was initially isolated and cultured from marine benthic sites in tropical regions.[4][5] In these environments, Thecamonas trahens primarily thrives by feeding on prokaryotic organisms. Additionally, Thecamonas trahens possesses genes associated with histidine kinases in cell signaling pathways, animal-like sodium channels, glycolytic mitochondrial metabolism, and calcium signaling—traits linked to the evolution of multicellularity.[6][7][8] The discovery of sodium channel analogs in Thecamonas suggests that voltage-gated Na⁺ channels may have evolved before the divergence of animals and fungi.[9]
References
- 1 2 "Taxonomy browser (Thecamonas trahens)". NCBI taxonomy database. Retrieved 2024-12-06.
- 1 2 Brown, Matthew W.; Sharpe, Susan C.; Silberman, Jeffrey D.; Heiss, Aaron A.; Lang, B. Franz; Simpson, Alastair G. B.; Roger, Andrew J. (2013-10-22). "Phylogenomics demonstrates that breviate flagellates are related to opisthokonts and apusomonads". Proceedings of the Royal Society B: Biological Sciences. 280 (1769) 20131755. doi:10.1098/rspb.2013.1755. PMC 3768317. PMID 23986111.
- 1 2 Heiss, Aaron A.; Walker, Giselle; Simpson, Alastair G. B. (2013-09-01). "The Microtubular Cytoskeleton of the Apusomonad Thecamonas, a Sister Lineage to the Opisthokonts". Protist. 164 (5): 598–621. doi:10.1016/j.protis.2013.05.005. ISSN 1434-4610. PMID 23872341.
- ↑ Larsen, Jacob; Patterson, David J. (1990-08-01). "Some flagellates (Protista) from tropical marine sediments". Journal of Natural History. 24 (4): 801–937. Bibcode:1990JNatH..24..801L. doi:10.1080/00222939000770571. ISSN 0022-2933.
- ↑ Tikhonenkov, D. V.; Burkovsky, I. V.; Mazei, Yu. A. (2015-09-01). "Is there a relation between the distribution of heterotrophic flagellates and the zonation of a marine intertidal flat?". Oceanology. 55 (5): 711–723. Bibcode:2015Ocgy...55..711T. doi:10.1134/S0001437015050173. ISSN 1531-8508.
- ↑ Kabbara, Samar; Hérivaux, Anaïs; Dugé de Bernonville, Thomas; Courdavault, Vincent; Clastre, Marc; Gastebois, Amandine; Osman, Marwan; Hamze, Monzer; Cock, J Mark; Schaap, Pauline; Papon, Nicolas (2018-09-25). "Diversity and Evolution of Sensor Histidine Kinases in Eukaryotes". Genome Biology and Evolution. 11 (1): 86–108. doi:10.1093/gbe/evy213. ISSN 1759-6653. PMC 6324907. PMID 30252070.
- ↑ Cai, Xinjiang; Wang, Xiangbing; Clapham, David E. (October 2014). "Early Evolution of the Eukaryotic Ca2+ Signaling Machinery: Conservation of the CatSper Channel Complex". Molecular Biology and Evolution. 31 (10): 2735–2740. doi:10.1093/molbev/msu218. ISSN 1537-1719. PMC 4169769. PMID 25063443.
- ↑ Nakayama, Takuro; Ishida, Ken-ichiro; Archibald, John M. (2012-12-20). "Broad Distribution of TPI-GAPDH Fusion Proteins among Eukaryotes: Evidence for Glycolytic Reactions in the Mitochondrion?". PLOS ONE. 7 (12) e52340. Bibcode:2012PLoSO...752340N. doi:10.1371/journal.pone.0052340. ISSN 1932-6203. PMC 3527533. PMID 23284996.
- ↑ Cai, Xinjiang (2012-02-01). "Ancient Origin of Four-Domain Voltage-gated Na+ Channels Predates the Divergence of Animals and Fungi". The Journal of Membrane Biology. 245 (2): 117–123. doi:10.1007/s00232-012-9415-9. ISSN 1432-1424. PMID 22258316.