Summary
The length of the cell cycle was measured in the shoot apical meristem ofSilene coeli-rosa during the first day of an inductive photoperiod. The length of the cell cycle in the shoot apex of vegetative controls (those in short days) was about 18–20 hours. Exposure of plants to the long day resulted in an immediate shortening of the cell cycle to about 13 hours, roughly two thirds of that in short days. Measurements of the component phases of the cell cycle revealed that the shortened cycle in long days was the result of a decrease in the length of G 1 and perhaps S, whilst G 2 and M remained constant.
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References
Bernier, G., 1971: Structural and metabolic changes in the shoot apex in transition to flowering. Can. J. Bot.49, 803–819.
—,Kinet, J. M., Bronchart, R., 1967: Cellular events at the meristem during floral induction inSinapis alba L. Physiol. Végétale5, 311–324.
Bodson, M., 1975: Variation in the rate of cell division in the apical meristem ofSinapis alba during transition to flowering. Ann. Bot.39, 547–554.
Brown, S. J., Klein, R. M., 1973: Effects of near ultraviolet and visible radiations on cell cycle kinetics in excised root meristems ofPisum sativum. Amer. J. Bot.60, 554–560.
Conger, A. D., Fairchild, L. M., 1953: A quick-freeze method for making smear slides permanent. Stain Technol.28, 281–283.
Corson, G. E., 1969: Cell division studies of the shoot apex ofDatura stramonium during transition to flowering. Amer. J. Bot.56, 1127–1134.
Francis, D., Lyndon, R. F., 1978: Early effects of floral induction on cell division in the shoot apex ofSilene. Planta139, 273–279.
Jacqmard, A., Miksche, J. P., 1971: Cell population and quantitative changes of DNA in the shoot apex ofSinapis alba during floral induction. Bot. Gaz.132, 364–367.
—,Raju, M. V. S., Kinet, J. M., Bernier, G., 1976: The early action of the floral stimulus on mitotic activity and DNA synthesis in the apical meristem ofXanthium strumanium. Amer. J. Bot.63, 166–174.
Kinet, J. M., Bernier, G., Bronchart, R., 1967: Sudden release of the meristematic cells from G 2 as a primary effect of flower induction inSinapis. Naturwissenschaften13, 351–352.
Miller, M. B., Lyndon, R. F., 1975: The cell cycle in vegetative and floral shoot meristems measured by a double labelling technique. Planta126, 37–43.
— —, 1976: Rates of growth and cell division in the shoot apex ofSilene during the transition to flowering. J. exp. Bot.27, 1142–1153.
Nachtwey, D. S., Cameron, I. L., 1968: Cell cycle analysis. In: Methods in cell physiology 3, pp. 213–259 (Prescott, D. M., ed.). New York and London: Academic Press.
Rolinson, A. E., Vince-Prue, D., 1976: Responses of the rice shoot apex to irradiation with red and far-red light. Planta132, 215–220.
Saint-Côme, R., 1969: Durée du cycle mitotique dans le point végétatif duColeus blumei Benth. C. R. Acad. Sci. Paris268, 508–511.
Sunderland, N., 1961: Cell division and expansion in the growth of the shoot apex. J. exp. Bot.12, 446–457.
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Francis, D., Lyndon, R.F. The cell cycle in the shoot apex ofSilene during the first day of floral induction. Protoplasma 96, 81–88 (1978). https://doi.org/10.1007/BF01279577
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DOI: https://doi.org/10.1007/BF01279577