Balantidium

Balantidium is a genus of ciliates. It contains the parasitic species Balantidium coli, the only known cause of balantidiasis.[2]

Balantidium
Balantidium coli trophozoite
Scientific classification
Domain:
(unranked):
(unranked):
Phylum:
Class:
Order:
Vestibuliferida
Family:
Balantiididae
Genus:
Balantidium

Claparède & Lachmann, 1858[1]
Type species
Balantidium entozoon[1]
Synonyms
  • Balantidiopsis Bütschli, 1889
  • Balantioides Alexeieff, 1931
  • Bolantidium
  • Parabursaria Ghosh, 1921
  • Paranyctotherus Sandon, 1941

History

The first-described species of Balantidium, B. entozoon, was described in 1838 by Ehrenberg as a member of the genus Bursaria. Balantidium coli observed in patients with dysentery was originally described as Paramecium coli by Malmstein in 1857. In 1858, Edouard Claparède and Johannes Lachmann created the genus Balantidium and reclassified B. entozoon as its type species.[3] Stein in 1863 reclassified Paramecium coli into the genus Balantidium.

Transcriptomics

Transcriptome data for Balantidium ctenopharyngodoni, from single-cell transcriptome sequencing, were published in 2017 and were the first omics data within the subclass Trichostomatia.[4]

Taxomomy

A separate genus – Neobalantidium – has been created for several of these species.[5] Balantidium coli is one of the species that has been reclassified. It has also been proposed that it is a junior synonym of genus Balantioides which has B. coli as the type species.[6]

The closest known relative of this genus is Buxtonella sulcata, a parasite of cattle.

Species

There are 72 species in the genus.[7]

  • Balantidium acanthuri
  • Balantidium alpha
  • Balantidium amblystomatis
  • Balantidium amygdalli
  • Balantidium aragaoi
  • Balantidium bacteriophoros
  • Balantidium beta
  • Balantidium bicavata
  • Balantidium blattarum
  • Balantidium bovis
  • Balantidium cameli
  • Balantidium caprae
  • Balantidium caviae
  • Balantidium chagasi
  • Balantidium coli
  • Balantidium ctenopharyngodonis
  • Balantidium cunhamunizi
  • Balantidium cynocephale
  • Balantidium dogieli
  • Balantidium duodeni
  • Balantidium elongatum
  • Balantidium entozoon
  • Balantidium falciformis
  • Balantidium frugivori
  • Balantidium galianoi
  • Balantidium geigyi
  • Balantidium geimani
  • Balantidium giganteum
  • Balantidium gracile
  • Balantidium gracilis
  • Balantidium granulosus
  • Balantidium grimi[8]
  • Balantidium gyrans
  • Balantidium gyranus
  • Balantidium haughwouti
  • Balantidium helenae
  • Balantidium hydrae
  • Balantidium indicum
  • Balantidium kirbyi
  • Balantidium major
  • Balantidium marsupialis
  • Balantidium medusarum
  • Balantidium minor
  • Balantidium minutum
  • Balantidium nucleus
  • Balantidium orchestium
  • Balantidium osmaniae
  • Balantidium ovatum
  • Balantidium ovis
  • Balantidium pellucidum
  • Balantidium pheretima
  • Balantidium philippiensis
  • Balantidium piscicola
  • Balantidium polyvacuolum
  • Balantidium porcellae
  • Balantidium prionurium
  • Balantidium radiata
  • Balantidium rhesum
  • Balantidium rotundum
  • Balantidium saigonensis
  • Balantidium serpentina
  • Balantidium simile
  • Balantidium sinensis
  • Balantidium spinibarbichthys
  • Balantidium steinae
  • Balantidium strelkovi
  • Balantidium struthionis
  • Balantidium suis
  • Balantidium tapiri
  • Balantidium testudinis
  • Balantidium triangulatum
  • Balantidium xenopi
  • Balantidium zebrascopi
gollark: I quite like maths. Except circle theorems and histograms.
gollark: They get around the fact that common calculators can do a not insignificant amount of the maths-exam stuff automatically by having a non-calculator paper for further maths, requiring working, and having more complex multi-step questions.
gollark: Maths, physics, chemistry, biology (very occasionally, it's not that mathy).
gollark: A single board one with an ARM CPU, but it definitely beats the calculator.
gollark: I can literally get a *computer* (without peripherals) for that price.

References

  1. Aescht, E. (2001) Denisia 01: Catalogue of the Generic Names of Ciliates (Protozoa, Ciliophora)
  2. "The Parasite: Balantidium coli". Retrieved 20 December 2015.
  3. Grim, J. Norman; Buonanno, Federico (2009). "A re-description of the ciliate genus and type species, Balantidium entozoon". European Journal of Protistology. 45 (3): 174. doi:10.1016/j.ejop.2008.10.001. PMID 19251405.
  4. Sun, Zongyi; Jiang, Chuanqi; Feng, Jinmei; Yang, Wentao; Li, Ming; Miao, Wei (2017). "Phylogenomic analysis of Balantidium ctenopharyngodoni (Ciliophora, Litostomatea) based on single-cell transcriptome sequencing". Parasite. 24: 43. doi:10.1051/parasite/2017043. PMC 5684829.
  5. {{cite journal|last1=Pomajbíková|first1=K.|last2=Oborník|first2=M.|last3=Horák|first3=A.|last4=Petrželková|first4=K. J.|last5=Grim|first5=J. N.|last6=Levecke|first6=B.|last7=Todd|first7=A.|last8=Mulama|first8=M.|last9=Kiyang|first9=J.|last10=Modrý|first10=D.|date=28 March 2013|title=Novel insights into the genetic diversity of Balantidium and Balantidium-like cyst-forming ciliates|journal=PLOS Neglected Tropical Diseases|volume=7|issue=3|page=e2140|doi=10.1371/journal.pntd.0002140|url=https://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0002140
  6. Chistyakova, L. V.; Kostygov, A. Y.; Kornilova, O. A.; Yurchenko, V. (4 September 2014). "Reisolation and redescription of Balantidium duodeni Stein, 1867 (Litostomatea, Trichostomatia)". Parasitology Research. 113 (11): 4207–4215. doi:10.1007/s00436-014-4096-1.
  7. Y. Roskov; L. Abucay; T. Orrell; D. Nicolson; T. Kunze; A. Culham; N. Bailly; P. Kirk; T. Bourgoin; R. E. DeWalt; W. Decock; A. De Wever (eds.). "Catalogue of Life - 2015 Annual Checklist". Retrieved 20 December 2015.
  8. Zhao, Weishan; Li, Can; Zhang, Dong; Wang, Runqiu; Zheng, Yingzhen; Zou, Hong; Li, Wenxiang; Wu, Shangong; Wang, Guitang; Li, Ming (2018). "Balantidium grimi n. sp. (Ciliophora, Litostomatea), a new species inhabiting the rectum of the frog Quasipaa spinosa from Lishui, China". Parasite. 25: 29. doi:10.1051/parasite/2018031. ISSN 1776-1042. PMC 5971665.
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