Annals of Botany 39: 547-554, 1975
© 1975 Annals of Botany Company
RESEARCH-ARTICLE |
Variation in the Rate of Cell Division in the Apical Meristem of Sinapis alba During Transition to Flowering
Laboratory of Plant Physiology, Department of Botany, University of Liège Sart Tilman, B-4000, Liège, Belgium
Received: 12 June 1974
Rates of cell division in the central and the peripheral zones of vegetative and evoked meristems of Sinapis alba have been measured by accumulation of metaphases after colchicine treatment. The cells of the central zone had a longer cycle than the cells on the flanks of both kinds of meristems. The duration of the cell cycle was shortened in both zones of the meristem during transition to flowering. It was shown that the mitotic indices of the two regions of the meristem were closely comparable to their rates of cell division and therefore could be considered representative of the rates of cell division.
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