The maximal development of amylase and protease activities and degradation of starch and protein in the cotyledons of germinating seeds of cowpea were found dependent on the presence of axis. Cycloheximide inhibition was suggestive of denovo synthesis of amylase and protease. Total soluble carbohydrates and reducing sugars were higher in the detached cotyledons. The results suggest that the axis acts as a sink. In its absence, the end products accumulate causing a feedback inhibition of amylase and protease activity.
