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Science 2 August 1968:
Vol. 161. no. 3840, pp. 470 - 472
DOI: 10.1126/science.161.3840.470
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Articles

Cytodifferentiation during Insect Metamorphosis: The Galea of Silkmoths

Fotis C. Kafatos 1 and Ned Feder 2

1 Biological Laboratories, Harvard University, Cambridge, Massachusetts 02138
2 National Institutes of Health, Bethesda, Maryland 20014

In the galea of silkmoths undergoing metamorphosis, generalized epidermal cells, which had previousty secreted pupal cuticle, transform into highly specialized cells producing a new protein, the enzyme cocoonase. These cells first segregate by mitosis and displacement, then grow rapidly through endomitosis and accumulation of RNA-rich cytoplasm, and finally begin rapid synthesis of cocoonase. Replication of DNA continues in fully differentiated cells synthesizing cocoonase.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Protein Synthesis: Its Control in Erythropoiesis.
P. A. Marks and R. A. Rifkind (1972)
Science 175, 955-961
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