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Updated: May 6, 2026

Quantification of Endogenous Auxin and Cytokinin During Internode Culture of Ipecac
Published on: March 15, 2018
Putative sites of cytokinin action during their enhancing effect on indole alkaloid accumulation in periwinkle cell
A Decendit1, G Petit, F Andreu
1Laboratoire de Biologie Cellulaire et Biochimie Végétale, Faculté de Pharmacie, Université de Tours, 37200, Tours, France.
Abstract:
The effects of cytokinins on the different branches of the indole alkaloid pathway were investigated in Catharanthus roseus cell cultures. Addition of zeatin to a 2,4-dichlorophenoxyacetic acid-containing medium decreased tryptamine levels and increased the bioconversion of secologanin to ajmalicine. Zeatin also enhanced the geraniol-10 hydroxylase activities and modified the indole alkaloid pattern. The results are discussed in the light of previous works showing that cytokinins have a positive effect on indole alkaloid accumulation in some lines of C. roseus.
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