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Conversion of N⁶-(²-Isopentenyl)adenosine to Adenosine by Enzyme Activity in Tobacco Tissue

Václav Paes¹, Eva Werstiuk and Ross H. Hall

^a Department of Biochemistry, McMaster University, Hamilton, Ontario, Canada

By using [8-¹⁴C]-N⁶-(²-isopentenyl)adenosine as a substrate, we detected the presence of enzyme activity in a crude extract of tobacco tissue that converts this cytokinin into adenosine. The extract also contains strong hydrolase activity that converts adenosine to adenine.

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