Effect of ABA and kinetin on glutamate dehydrogenase and glutamate oxaloacetate transaminase activity in germinating groundnut seeds

Abscisic acid inhibited and kinetin promoted the germination of groundnut seeds. After 72 hours of imbibition, the dormant cultivar showed higher GDH activity as compared to non-dormant seeds. ABA induced dormancy in non-dormant seeds was accompanied by an increase in GDH and decrease in GOT activity. Kinetin treatment decreased the GDH activity in dormant seeds. Removal of dormancy by kinetin treatment was associated with an increase in GOT activity. The differential effects of ABA and kinetin on the activity of these enzymes therefore depend on the state of seed dormancy.