Effect of ribosylzeatin isomers on the enzymatic degradation of N6-(delta2-isopentenyl) adenosine.
Cytokinin oxidase has been partially purified from cultured tobacco tissue. This enzyme converts N6-(delta2-isopentenyl)-adenosine to adenosine. The reaction is inhibited by the two isomers of ribosylzeatin [n6-4-hydroxy-3-methylbut-2-enyl)adenosine]. Trans-ribosylzeatin inhibits the reaction more than the cis-isomer.
D000241:Adenosine / Q000031:analogs & derivatives*; D007541:Isopentenyladenosine / Q000378:metabolism*; D010088:Oxidoreductases; D010947:Plants, Toxic; D011684:Purine Nucleosides; D013237:Stereoisomerism; D014026:Nicotiana / Q000201:enzymology
D011684:Purine Nucleosides; D007541:Isopentenyladenosine; D010088:Oxidoreductases; C019984:cytokinin oxidase; D000241:Adenosine