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Blepharisma japonicum

Species of single-celled organism

Species of single-celled organism

Blepharisma japonicum is a species of protozoan that can be found either in water or soil in Japan.

Description

The body of an organism is elongated and ovoided. It has a curved anterior apex that is over the peristome. It has a cytostome which is a two-layered undulating membrane, on the right front edge, and also contractile vacuole with cytopyge terminal. It is either brown or rose-coloured.

Conjugation

Blepharisma japonicum produces sexual pheromones that promote conjugation. There are two mating types (I and II), each type excreting a specific pheromone (termed gamone 1 and gamone 2, respectively). When sexually mature mating-type I cells are moderately starved, they autonomously produce and secrete gamone I.

References

References

  1. (2003-09-30). "A rapid and simple method of detection of Blepharisma japonicum using PCR and immobilisation on FTA paper". BMC Ecology.
  2. Tsukii, Yuuji. "Protist Images : Blepharisma japonicum".
  3. Miyake, A. (1981). "Cell interaction by gamones in Blepharisma In: Sexual Interactions in Eukaryotic Microbes". Academic Press.
  4. (2010). "Behavioural changes induced by the conjugation-inducing pheromones, gamone 1 and 2, in the ciliate Blepharisma japonicum". Eur. J. Protistol..
  5. (1997). "Sexual communication". J. Theor. Biol..
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heterotrichea protists-described-in-1954 ciliate-species
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