effect of ecdysterone and juvenile hormones on protein synthesis and development of imaginal wing discs of Drosophila melanogaster

The effect of ecdysterone and juvenile hormone on protein synthesis and development of imaginal wing discs of Drosophila melanogaster has been studied. It is found that juvenile hormone apparently does not inhibit the synthesis of the ecdysterone-inducible proteins, although wing disc development is inhibited to various extent by different juvenile hormones. It is suggested that the ecdysterone-inducible proteins are not involved directly in the initiation of wing disc evagination, it is possible that some of these proteins are involved in the maintenance of chromatin activities or they are involved in gene activation.