[Comparison of the effects of alpha and beta ecdysone on a diploid clone of cultured Drosophila melanogaster cells in vitro: induction of proteins and morphological changes].


The specific induction of a similar (class of) protein(s) by alpha or beta-ecdysone in the cells of a "sensitive" clone of Drosophila melanogaster cultured in vitro was shown by polyacrylamide gel electrophoresis. However, differences can be seen in the action of the two hormones. (1) The threshold concentration is about 10 times higher for alpha-ecdysone… (More)


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