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On the genesis of nematocysts of polykrikos schwartzi

, : On the genesis of nematocysts of polykrikos schwartzi. Protistologica 13(1): 145-149

The ultrastructural study of nematocyst development rejects the hypothesis of cyclic formation (Chatton 1914, and re-adopted by Hovasse 1951). In 1972 Greuet showed that what had been called the cnidoplast by Chatton and supposed to be at the origin of the cycle, was a fully differentiated organelle for which the term toeniocyst was created. Altogether toeniocyst and nematocyst originated from the Golgi apparatus; they were connected with the mitochondrial system. The centrosome does not participate. These structures seem related to the silver ectoplasmic net of the dinoflagellate, and these relations allow the metamerizaion of kinetosomes to be understood.

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Related references

Greuet C., 1972: Ultrastructural organization and organelle genesis of the cnidocyst cnidoplast complex in the peridinian polykrikos schwartzi. Journal of Protozoology 19(SUPPL): 67

Iwasaki H., 1971: Studies on the red tide dinoflagellates part 5 on polykrikos schwartzi. Bull Jap Soc Sci Fish 37(7): 606-609

Greuet, C.; Hovasse, R., 1977: A propos de la genese des nematocystes de Polykrikos schwartzi Butschli. Protistologica, 131: 145-149

Iwasaki, H., 1971: Studies on the red tide dinoflagellates - 5. On Polykrikos schwartzi, Butschli. Bulletin Japscient. Fish: 606-609

Chatton, E., 1914: Lea cnidocystes du Peridinien Polykrikos schwartzi Butschli. Structure, fonctionnement, autogenese. Homologies Arch zool Paris, 54 157-194

Greuet C., 1972: Trichocystic nature of cnidoblasts in the cnidoblast nematocyst complex of polykrikos schwartzi. Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences Serie D Sciences Naturelles 275(12): 1239-1242

Faure-Fremiet, E., 1913: Sur les nematocysts et les trichocystes de Polykrikos. Bulletin de la Societe Zoologique Paris, 38 289-290

Chatton, E., 1931: Essai d'un schema de l'energide d'apres une image objective et synthetique : le Dinoflagelle Polykrikos Schwartzi Butschli. Archivio Zoologico Torino, 16: 169-87

Chatton, E.; Weill, R., 1924: Sur l'appareil flagellaire des Peridiniens et en particulier du Polykrikos schwartzi et ses relations avec l'appareil nucleaire. Compte Rendu des Seances de la Societe de Biologie Paris, 91: 580-583

Greuet, C., 1972: La nature trichocystaire du cnidoplaste dans le complexe cnidoplaste nematocyste de Polykrikos schwartzi Butschli. Comptes r Seanc. Acad. Sci. Paris (D): 1239-1242