No gibberellic acid found in royal jelly
1972
Tucker, K.W. | Blum, M.S.
We were not able to detect the plant hormone, gibberellic acid (GA3), in the brood food, otherwise known as royal jelly, fed to larval honey bees, Apis mellifera L., although Nation and Robinson (1966) suggested that it might be essential to development. These investigators found that nurse bees feeding on a semidefined diet could initiate laying by their queen, but could rear young larvae from hatching through only the 3rd or 4th day. If the larvae were to complete development, it was necessary to provide the nurse bees with additional nutrients, a minimum of 7.5% pollen or 0.85 mg of GA3 per gram of diet.
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