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

Meira Ziv*, Tamar Ariel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

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.

Original languageEnglish
Pages (from-to)53-57
Number of pages5
JournalJournal of Plant Growth Regulation
Volume10
Issue number1
DOIs
StatePublished - Dec 1991

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