meta-Topolin

meta-Topolin is an aromatic cytokinin, first isolated from leaves of Populus x robusta. Cytokinins (CTKs) are a class of growth-regulating hormones involved in various physiological and developmental processes.  In comparison with other cytokinins, the metabolism of meta-Topolin is similar. Meta-Topolin may undergo ribosylation at position 9 without a significant effect on the activity, just as zeatin and BAP.