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Updated: Sep 13, 2026

Quantification of Endogenous Auxin and Cytokinin During Internode Culture of Ipecac
Published on: March 15, 2018
Cytokinins and shoot development
Stephen H Howell1, Sonia Lall, Ping Che
1Plant Sciences Institute, Iowa State University, Ames, IA 50011, USA. shh@iastate.edu
Abstract:
Cytokinins promote the unfolding of a complex gene expression program in tissue culture that results in the formation of shoots. Much has been learned about cytokinin signaling in the past few years; the challenge now is to understand how known steps in cytokinin signaling interface with the process of shoot development in culture and in planta. Several ways have been found to block or bypass the requirement for cytokinins, and these findings have revealed key control steps in the shoot development process. Plant control is exercised not only in the promotion of shoot development, but also in its restraint under conditions where shoots are not ordinarily formed.
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