Abstract
In the first cycle following transfer from a 12 h light-12 h dark cycle (LD12:12) to constant darkness (DD), the standard deviation in circadian phase among individual clocks in populations ofGonyaulax polyedra is approximately 60 min. When a culture is transferred to constant light conditions (LL) from an LD 12:12 cycle, the standard deviation increases in the first 2–3 d, but then remains unchanged, suggesting a lack of observable desynchronization in LL after the transient period. The synchrony in a cell population is preserved even after several cell divisions. The results indicate that variations in period among cells are small, that the period of an individual clock does not fluctuate randomly from day to day, and that the circadian phase of a mother cell is faithfully passed to the clocks of the daughter cells.
Similar content being viewed by others
References
Njus, D., Gooch, V. D., and Hastings, J. W. (1981), Cell Biophys.3, 223.
Krasnow, R., Vetterling, W., Haas, E., Dunlap, J., Taylor, W., and Hastings, J. W. (1981), Bioluminescence: Current Perspectives, Nealson, K. H., ed., Burgess, Minneapolis, MN, pp. 52–63.
Pittendrigh, C. S. (1975), The Molecular Basis of Circadian Rhythms, Hastings, J. W. and Schweiger, H.-G. eds., Dahlem Konferenzen, Berlin, pp. 11–48.
Sweeney, B. M. and Hastings, J. W. (1958), J. Protozool.5, 217.
Edmunds, L. N., Jr., Chuang, L., Jarett, R. M., and Terry, O. W. (1971), J. Interdiscipl. Cycle Res.2, 121.
Brinkmann, K. (1966), Planta70, 344.
Edmunds, L. N., Jr. (1971), Biochronometry, Menaker, M., ed. National Academy of Sciences, Washington, DC, pp. 594–611.
Schweiger, H.-G. and Schweiger, M. (1977), Int. Rev. Cytol.51, 315.
Hastings, J. W. and Sweeney, B. M. (1958), Biol. Bull.115, 440.
Sulzman, F. M., Gooch, V. D., Homma, K., and Hastings, J. W. (1982), Cell Biophys.4, 97.
Broda, H., Brugge, D., Homma, K., and Hastings, J. W. (1985), Cell Biophys.8, 47.
Njus, D., McMurry, L., and Hastings, J. W. (1977), J. Comp. Physiol.117, 335.
Peterson, E. L. (1980), J. Comp. Physiol.138, 201.
Sweeney, B. M. (1979), Plant Physiol64, 341.
Guillard, R. R. L. and Ryther, J. H. (1962), Can. J. Microbiol.8, 229.
Homma, K. and Hastings, J. W. (1989), J. Cell Sci.,92, 303–318.
Homma, K. and Hastings, J. W. (1988), J. Biol Rhythms3, 49–58.
Taylor, W. R., Wilson, S., Presswood, R., and Hastings, J. W. (1982), J. Interdiscipl. Cycle Res.13, 71.
Broda, H., Gooch, V. D., Taylor, W. R., Aiuto, N., and Hastings, J. W. (1986), J. Biol. Rhythms1, 251.
Krasnow, R., Dunlap, J. C., Taylor, W., Hastings, J. W., Vetteriing, W., and Gooch, V. (1980), J. Comp. Physiol. B138, 19.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Homma, K., Haas, E. & Hastings, J.W. Phase of the circadian clock is accurately transferred from mother to daughter cells in the dinoflagellateGonyaulax polyedra . Cell Biophysics 16, 85–97 (1990). https://doi.org/10.1007/BF02989694
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02989694