Summary
Shoot formation in tobacco (Nicotiana tabacum L.) callus is accompanied by an increase in peroxidase activity which takes a form similar to a sigmoid curve. The “stationary” phase coincide with the period of organ formation. Characteristic changes in isoperoxidase pattern are found in the shoot-forming part of the callus. These changes are different from those in the nonshoot-forming part or in gibberellin-treated tissue, which does not form shoots.
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Thorpe, T.A., Gaspar, T. Changes in isoperoxidases during shoot formation in tobacco callus. In Vitro 14, 522–526 (1978). https://doi.org/10.1007/BF02616094
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DOI: https://doi.org/10.1007/BF02616094