Abstract
The terminal, apical shoot meristem ofN. tabacum cv. Wisconsin 38 normally differentiates into a flower after producing 30 to 40 nodes. The influence of leaves and roots on the regulation of flowering was evaluated by counting the number of nodes produced after removal of leaves or the induction of adventitious roots. Leaf removal has no effect on the number of nodes produced before flower formation. Root induction significantly increases the number of nodes produced before flower formation. The plant behaves as if it were measuring the number of nodes between the meristem and the roots as a means of regulating meristem conversion from vegetative to floral differentiation.
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Chailakhyan, M.Kh., Khazhakyan, Kh.K.: Interaction between leaves and shoots during efflorescence of plants of photoperiodically neutral species. (In Russ.) Dokl. Akad. Nauk. SSSR217, 1214–1217 (1974)
Graham, C.F., Wareing, P.F.: The developmental biology of plants and animals. Philadelphia: Saunders Co. 1976
Habermann, H.M., Sekulow, D.B.: Development and aging inHelianthus annuus L. Effects of the biological milieu of the apical meristem on patterns of development. Growth36, 339–349 (1972)
Lang, A.: Physiology of flower initiation. In: Encyclopedia of Plant Physiology, vol. XV, pt 1, pp. 1380–1536, Ruhland W., ed. Berlin, Heidelberg, New York: Springer 1965
McDaniel, C.N., Hsu, F.C.: Position-dependent development of tobacco meristems. Nature (London)259, 564–565 (1976a)
McDaniel, C.N., Hsu, F.C.: Positional information in relation to aging. Acta Hortic.56, 291–298 (1976b)
McDaniel, C.N.: Determination for growth pattern in axillary buds ofNicotiana tabacum L. Dev. Biol.66, 250–255 (1978)
Miginiac, E.: Some aspects of regulation of flowering: Role of correlative factors in photoperiodic plants. Bot. Mag. (Tokyo) Special Issue No. 1, 159–173 (1978)
Schwabe, W.W., Al-Doori, A.H.: Analysis of a juvenile-like condition affecting flowering in the black currant (Ribes nigrum). J. Exp. Bot.24, 969–981 (1973)
Seltman, H.: Effect of light periods and temperatures on plant form ofNicotiana tabacum L. cv. Hicks. Bot. Gaz.135, 196–200 (1974)
Thomas, J.F., Anderson, C.E., Raper, C.D., Jr., Downs, R.J.: Time of floral initiation in tobacco as a function of temperature and photoperiod. Can. J. Bot.53, 1400–1410 (1975)
Tran Thanh Van, M.: Direct flower neoformation from superficial tissue of small explants ofNicotiana tabacum L. Planta115, 87–92 (1973)
Zeevaart, J.A.D.: Physiology of flower formation. Annu. Rev. Plant Physiol.27, 321–348 (1976)
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McDaniel, C.N. Influence of leaves and roots on meristem development inNicotiana tabacum L. cv. Wisconsin 38. Planta 148, 462–467 (1980). https://doi.org/10.1007/BF02395316
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DOI: https://doi.org/10.1007/BF02395316