Tissues of purple, green, and white varieties of eggplant, Solanum melongena, were analyzed for relative activity of phenyl phosphatase, fructose-1, 6-diphosphatase, glucose-1-phosphatase, glucose-6-phosphatase, and ATPase. Activities of all phosphatases were highest in the purple variety and lowest in the white. Relative rates of activity decreased in the order: ATPase, phenyl phosphatase, fructose-1, 6-diphosphatase, glucose-6-phosphatase, and glucose-1-phosphatase (only found in the purple variety).
1Virginia Polytechnic Institute and State University.
2Southern Regional Research Center.
3One of the facilities of the U.S. Department of Agriculture, Agricultural Research Service, Southern Region, New Orleans, LA.