Ciclo cellulare di Aspidisca aculeata (Ehrenberg)
Dini, Fernando ; Bracchi, Paolo
Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti, Tome 60 (1976), p. 64-69 / Harvested from Biblioteca Digitale Italiana di Matematica
Access to full text
Full (PDF)
Full (DjVu)

Under our experimental conditions (22-23 °C with plenty of food), the cell cycle of Aspidisca aculeata, stock Ge1, lasts 9 hrs. The macronuclear phases G1, S, G2 and D occupy 58%, 34%, 3%, 5%, respectively, of the cell cycle. The micronuclear cycle is characterized by the absence of the G2 phase as the S phase is followed immediately by the micronuclear division which precedes the macronuclear one. The length of micronuclear phases, G1, S and D corresponds, respectively, to 87%, 5%, 8% of the cell cycle. When more micronuclei are present in the same cell, they divide asynchronously.

Publié le : 1976-01-01
@article{RLINA_1976_8_60_1_64_0,
     author = {Fernando Dini and Paolo Bracchi},
     title = {Ciclo cellulare di Aspidisca aculeata (Ehrenberg)},
     journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti},
     volume = {60},
     year = {1976},
     pages = {64-69},
     language = {it},
     url = {http://dml.mathdoc.fr/item/RLINA_1976_8_60_1_64_0}
}

Dini, Fernando; Bracchi, Paolo. Ciclo cellulare di Aspidisca aculeata (Ehrenberg). Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti, Tome 60 (1976) pp. 64-69. http://gdmltest.u-ga.fr/item/RLINA_1976_8_60_1_64_0/

[1] Ammermann, D. (1970) - The micronucleus of the citiate Stylonychia mytilus; its acid synthesis and its function, «Exp. Cell. Res.», 61, 6-12.

[2] Borror, A. C. (1965) - New and little-known tidal marsh ciliates. «Trans. Amer. Microsc. Soc.», 84, 550-565.

[3] Borror, A. C. (1972) - Revision of the order Hypotrichida (Ciliophora, Protozoa), «J. Protozool.», 19, 1-23.

[4] Brown, T. J. (1966) - Observation on the morphology and reproduction of Aspidisca cicada, «N.Z.J. Sci.», 9, 65-76.

[5] Brown, T. J. (1967) - Utilization of four sugar known to occur in activated sludge by Aspidisca cicada, «J. Protozool», 14, 340-344.

[6] Burkovsky, I. V. (1970) - The ciliates of the mesopsammon of the Kandalaksha Gulf (White Sea), «Acta Protozool.», 7, 475-489.

[7] Clefmann, G. (1974) - The cell cycle. In De Puytorac, Grain J. Eds., Actualités Protozoologiques, Université de Clermont, Clermont-Ferrand, 1, 315-324.

[8] Corliss, J. O. (1961) - The ciliated Protozoa: Characterization of the principal groups. Pergamon Press, Inc., New York 169 pp.

[9] Deroux, G. e Tuffrau, M. (1965) - Aspidisca orthopogon n. sp., révision de certains mécanismes de la morphogénese à l'aide d'une modification de la technique au Protargol, «Cah. Biol. Mar.», 6, 293-310.

[10] Diller, W. F. (1975) - Nuclear behavior and morphogenetic changes in fission and conjugation of Aspidisca costata (Dujardin), «J. Protozool.», 22, 221-229.

[11] Dini, F., Bracchi, P. e Luporini, P. - Cellular cycle in two citiate hypotrichs, «Acta Protozool.», in press.

[12] Dragesco, J. (1954) - Diagnoses préliminaires de quelques Ciliés nouveaux des sables, «Bull. Soc. Zool. France», 79, 62-70.

[13] Hamm, A. (1964) - Untersuchitngen über die Ökologie und Variabilität von Aspidisca costata (Hypotricha) in Belebtschlamm, «Arch. Hydrobiol.», 60, 286-339.

[14] Jerka-Dziadosz, M. e Frankel, J. (1970) - The control of DNA synthesis in macronuclei of a hypotrich citiate: a comparison of normal and regenerating cells, «J. Exp. Zool.», 173, 1-21.

[15] Kahl, A. (1932) - Urtiere oder Protozoa I: Wimpertiere oder Ciliata (Infusoria). In Dahl F. Ed., Die Tierwelt Deutschlands, Teil 25, 399-650.

[16] Luporini, P. e Bracchi, P. (1973) - Micronuclear behavior in the life cycle of a plurimi-cronucleate strain of Euplotes crassus (Dujardin) (Ciliata Hypotrichida), «Mon. Zool. Ital. (N.S.)», 7, 71-85.

[17] Luporini, P. e Dini, F. (1975) - Relationships between cell cycle and conjugation in 3 Hypotrichs, «J. Protozool.», 22, 541-544.

[18] Nachtwey, D. S. e Cameron, I. L. (1968) - Cell cycle analysis. In Prescott D.M., Ed., Methods in Cell Physiology, Academic Press, New York and London 3, 213-259.

[19] Plough, H. (1916) - The genus Aspidisca Ehrenberg, «Trans. Amer. Microsc. Soc.», 35, 233-244.

[20] Prescott, D. M., Kimball, R. F. e Carrier, R. F. (1962) - Comparison between the timing of micronuclear and macronuclear DNA synthesis in Euplotes eurystomus, «J. Cell Biol.»,13, 175-176.

[21] Prescott, D. M. e Stone, G. E. (1967) - Replication and function of the protozoan nucleus. In Chen T. T., Ed., Research in Protozoology, Pergamon Press, N. Y., 2, 117-146.

[22] Ruthmann, A. (1972) - Division and formation of the macronuclei of Keronopsis rubra, «J. Protozool.», 19, 661-666.

[23] Summers, F. M. (1935) - The division and reorganization of the macronuclei of Aspidisca lynceus Müller, Diophrys appendiculata Stein, and Stylonychia pustulata Ehrbg, «Arch. Protistenk.», 85, 173-208.

[24] Tuffrau, M. (1964) - La morphogênése de bipartion et les structures neuromotrices dans le genre Aspidisca (Ciliés hypotriches). Revue de quelques especes, «Cah. Biol. Mar.», 5, 173-179-