, Volume 161, Issue 4, pp 289–294 | Cite as

Inhibition of growth and synchronised cell division in the shoot apex in relation to flowering in Silene

  • Susan Grose
  • R. F. Lyndon


When plants of Silene coeli-rosa (L.) Godron were induced by seven long days, then exposed to darkness for 48 h before being returned to short days, they went on to initiate flowers with a delay of about 2 d. The synchronisation of cell division which normally occurs before flower initiation was suppressed, showing that it is not essential for flowering. Periods of darkness of up to 240 h inhibited apical growth and leaf initiation but did not prevent eventual flowering in short days. The commitment of the apex to flower was therefore maintained while apical growth was inhibited.

Key words

Cell division synchrony Flowering Mitosis Shoot apex Silene 



short day(s)


long day(s)


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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • Susan Grose
    • 1
  • R. F. Lyndon
    • 1
  1. 1.Department of BotanyUniversity of EdinburghEdinburghUK

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