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Paramecium (/ ˌ p ær ə ˈ m iː s (i) ə m / PARR-ə-MEE-s(ee-)əm, /-s i ə m /-see-əm, plural "paramecia" only when used as a vernacular name) [2] is a genus of eukaryotic, unicellular ciliates, widespread in freshwater, brackish, and marine environments. Paramecia are often abundant in stagnant basins and ponds.
Paramecium caudatum [1] is a species of unicellular protist in the phylum Ciliophora. [2] They can reach 0.33 mm in length and are covered with minute hair-like organelles called cilia. [3] The cilia are used in locomotion and feeding. [2] The species is very common, and widespread in marine, brackish and freshwater environments. [4] [5]
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 ]
Paramecium aurelia [1] are unicellular organisms belonging to the genus Paramecium of the phylum Ciliophora. [2] They are covered in cilia which help in movement and feeding. [ 2 ] Paramecium can reproduce sexually , asexually , or by the process of endomixis . [ 3 ]
Paramecium biaurelia is a species of unicellular ciliates under the genus Paramecium, and one of the cryptic species of Paramecium aurelia. [2] It is a free-living protist in water bodies and harbours several different bacteria as endosymbionts .
Paramecium sonneborni is a species of unicellular organisms belonging to the genus Paramecium of the phylum Ciliophora. [1] It was first isolated in Texas and named after Tracy M. Sonneborn. It is a member of the Paramecium aurelia species complex. They are covered in cilia and are distinguished by their difference in mating patterns and enzyme ...
Paramecium strains possessing the particles are known as "killer paramecia". They liberate a substance also known as paramecin [1] [2] into the culture medium that is lethal to Paramecium that do not contain kappa particles. Kappa particles are found in genotypes of Paramecium aurelia syngen 2 that carry the dominant gene K. [3] [4]
Paramecium woodruffi is a species of unicellular organisms belonging to the genus Paramecium of the phylum Ciliophora. [1] It was first isolated in 1928 by D. H. Wenrich. [ 2 ] It is a member of the Paramecium aurelia species complex.