Bud proliferation and plant regeneration in liquid-cultured philodendron treated with ancymidol and paclobutrazol

  • Meira Ziv
  • Tamar Ariel
Article
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Accepted:

Abstract

Philodendron plants propagated in liquid shake or bioreactor cultures proliferated profusely in the presence of paclobutrazol (PAC) and to a lesser extent in the presence of ancymidol (ANC). The growth retardants inhibited leaf development and induced the formation of bud clusters. Short transient treatments with low concentrations (1.7–3.4 μM) of the growth retardants limited leaf growth and proliferation to a lesser extent than higher concentrations (6.8–17 μM). The growth retardants had a carryover dwarfing effect in the semi-solid hardening medium, which was more pronounced at the higher concentrations or prolonged exposure periods. Regenerated plants resumed normal growth 3–6 weeks after transplanting. Treatment with growth retardants may become a useful method in the prevention of abnormal leaf growth in large-scale liquid cultures, as well as in enhancing bud proliferation.

Keywords

Growth Retardant Paclobutrazol Bioreactor Culture Ancymidol Total Fresh Weight 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer-Verlag New York Inc. 1991

Authors and Affiliations

  • Meira Ziv
    • 1
    • 2
  • Tamar Ariel
    • 1
  1. 1.Department of Agricultural BotanyThe Hebrew University of Jerusalem Faculty of AgricultureRehovotIsrael
  2. 2.Otto Warburg Center for Biotechnology in AgricultureThe Hebrew University of Jerusalem Faculty of AgricultureRehovotIsrael

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