Cytokinin activity of 4-aminopyridopyrimidines toward the growth of tobacco [Nicotiana tabacum] callus.
1994
Nishikawa S. | Maki S. | Nishikimi Y. | Kumazawa Z. | Kashimura N.
The cytokinin activity of isoamyl, benzyl and phenyl derivatives of a series of 4-aminopyridopyrimidines and 4-aminoquinazoline was tested on tobacco callus. Among the derivatives, 2-methyl-4-anilinopyrido[3,4-d]pyrimidin exhibited moderate activity almost comparable to that of kinetin. The position of the nitrogen atom in the pyridine moiety of the pyridopyrimidine ring was critical for this activity.
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