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-ECDYSONE ON MOLT-LINKED DIFFERENTIATION IN VITRO
1 Metabolism and Radiation Research Laboratory, Agricultural Research Service, U. S. Department of Agriculture, Fargo, North Dakota 58102
A study of the effects of
-ecdysone on the initiation of cuticle deposition and seta formation by cockroach leg regenerates in vitro showed that both processes are ecdysone-dependent and are initiated by the same threshold dose, but the responses differ qualitatively and quantitatively. The initiation of cuticle deposition depends primarily on the accumulation of hormone-initiated events by the target tissue. The initiation of seta formation has an additional requirement for simultaneous protein synthesis.
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