Biology:Monocercomonoides exilis
| Monocercomonoides exilis | |
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Scientific classification 
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| Missing taxonomy template (fix): | Monocercomonoides |
| Species: | Template:Taxonomy/MonocercomonoidesM. exilis
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| Binomial name | |
| Template:Taxonomy/MonocercomonoidesMonocercomonoides exilis Nie, 1950
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Monocercomonoides exilis is a species of single celled eukaryote belonging to the oxymonads, a group of flagellated protists that live in the gastrointestinal tracts of animals. It is a bacterivorous organism found in the intestinal tract of rodents, including guinea pigs and chinchillas.[1][2] It was the first eukaryotic organism found that lacks mitochondria or mitochondrial related organelles.[3]
History
Monocercomonoides exilis was first described from the digestive tract of guinea pigs in 1950.[4] Early studies on Monocercomonoides species were based largely on light microscopy and suspected host species, so speciation was often unclear.[5] In 1993, a strain of Monocercomonoides, designated Monocercomonoides strain PA203, was isolated from a chinchilla.[6]
Absence of mitochondria
Mitochondria are organelles found in nearly all eukaryotes. Some anaerobic eukaryotes have reduced mitochondria related organelles, such as hydrogenosomes or mitosomes, which retain some mitochondrial functions. M. exilis is unusual in that it lacks any form of mitochondrial related organelle.[7]
References
- ↑ Treitli, Sebastian Cristian; Peña-Diaz, Priscila; Hałakuc, Paweł; Karnkowska, Anna; Hampl, Vladimír (2021). "High quality genome assembly of the amitochondriate eukaryote Monocercomonoides exilis". Microbial Genomics 7 (12): 000745. doi:10.1099/mgen.0.000745. ISSN 2057-5858. PMID 34951395.
- ↑ Karnkowska, Anna; Treitli, Sebastian C.; Brzoň, Ondřej; Novák, Lukáš; Vacek, Vojtěch; Soukal, Petr; Barlow, Lael D.; Herman, Emily K. et al. (2019-10-01). "The Oxymonad Genome Displays Canonical Eukaryotic Complexity in the Absence of a Mitochondrion". Molecular Biology and Evolution 36 (10): 2292–2312. doi:10.1093/molbev/msz147. ISSN 1537-1719. PMID 31387118.
- ↑ Leslie, Mitch (2016-05-12). "First eukaryotes found without a normal cellular power supply". Science. doi:10.1126/science.aaf5717. ISSN 0036-8075. http://www.sciencemag.org/news/2016/05/first-eukaryotes-found-without-normal-cellular-power-supply.
- ↑ Nie, D. (1950). "Morphology and taxonomy of the intestinal protozoa of the guinea-pig, Cavia porcella". Journal of Morphology 86 (3): 381–494. doi:10.1002/jmor.1050860302. ISSN 0362-2525. PMID 24537609. https://pubmed.ncbi.nlm.nih.gov/24537609.
- ↑ Treitli, Sebastian C.; Kotyk, Michael; Yubuki, Naoji; Jirounková, Eliška; Vlasáková, Jitka; Smejkalová, Pavla; Šípek, Petr; Čepička, Ivan et al. (2018). "Molecular and Morphological Diversity of the Oxymonad Genera Monocercomonoides and Blattamonas gen. nov". Protist 169 (5): 744–783. doi:10.1016/j.protis.2018.06.005. ISSN 1618-0941. PMID 30138782. https://pubmed.ncbi.nlm.nih.gov/30138782.
- ↑ Hampl, Vladimír; Horner, David S.; Dyal, Patricia; Kulda, Jaroslav; Flegr, Jaroslav; Foster, Peter G.; Embley, T. Martin (2005-12-01). "Inference of the Phylogenetic Position of Oxymonads Based on Nine Genes: Support for Metamonada and Excavata". Molecular Biology and Evolution 22 (12): 2508–2518. doi:10.1093/molbev/msi245. ISSN 0737-4038. https://doi.org/10.1093/molbev/msi245.
- ↑ Karnkowska, Anna; Vacek, Vojtěch; Zubáčová, Zuzana; Treitli, Sebastian C.; Petrželková, Romana; Eme, Laura; Novák, Lukáš; Žárský, Vojtěch et al. (2016-05-23). "A Eukaryote without a Mitochondrial Organelle". Current biology: CB 26 (10): 1274–1284. doi:10.1016/j.cub.2016.03.053. ISSN 1879-0445. PMID 27185558. https://pubmed.ncbi.nlm.nih.gov/27185558.
Wikidata ☰ Q123753287 entry
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