Paramecium bursaria is a species of ciliate found in marine and brackish waters.[1] It has a mutualistic endosymbiotic relationship with green algae called Zoochlorella. About 700 Chlorella cells live inside the protist's cytoplasm and provide it with food, while the Paramecium provides the algae with movement and protection.[2] P. bursaria is 80-150 μm long, with a wide oral groove, two contractile vacuoles, and a single micronucleus as well as a single macronucleus. P. bursaria is the only species of Paramecium that forms symbiotic relationships with algae, and it is often used in biology classrooms both as an example of a protozoan and also as an example of symbiosis.

Paramecium bursaria
Scientific classification Edit this classification
Domain: Eukaryota
Clade: Diaphoretickes
Clade: SAR
Clade: Alveolata
Phylum: Ciliophora
Class: Oligohymenophorea
Order: Peniculida
Family: Parameciidae
Genus: Paramecium
Species:
P. bursaria
Binomial name
Paramecium bursaria
(Ehr., 1831)

A transcriptome sequence is determined.[3]

References

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  1. ^ Warren, A. (2019) Paramecium bursaria (Ehrenberg) Focker, 1836 WoRMS. Accessed: 16 October 2019.
  2. ^ Kodama, Yuuki; Fujishima, Masahiro (2022). "Endosymbiotic Chlorella variabilis reduces mitochondrial number in the ciliate Paramecium bursaria". Scientific Reports. 12 (1): 8216. Bibcode:2022NatSR..12.8216K. doi:10.1038/s41598-022-12496-8. PMC 9151773. PMID 35637201.
  3. ^ Dohra H; et al. (2015). "Analysis of amino acid and codon usage in Paramecium bursaria". FEBS Lett. 589 (20 Pt B): 3113–8. Bibcode:2015FEBSL.589.3113D. doi:10.1016/j.febslet.2015.08.033. hdl:10297/9791. PMID 26341535. S2CID 357977.

Further reading

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