Ecdysis Control Sheds Another Layer

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Science  05 Jan 1996:
Vol. 271, Issue 5245, pp. 40
DOI: 10.1126/science.271.5245.40


The process by which a butterfly emerges from a chrysalis, called ecdysis, has been thought to be controlled by eclosion hormone. J. Truman discusses the discovery of a new insect hormone, reported in this issue of Science by hacek Zithacek nan et al. (p. 88), that can also trigger ecdysis—MasETH. The two hormones seem to act sequentially.