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American Zoologist 1972 12(2):381-384; doi:10.1093/icb/12.2.381
© 1972 by The Society for Integrative and Comparative Biology
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Endocrine Regulation of Lipid Synthesis in Decapod Crustaceans

WALTER E. BOLLENBACHER, DAVID W. BORST and JOHN D. O'CONNOR
Department of Zoology, University of California Los Angeles, California 90024

The legulation of lipid synthesis in the hepatopancreas of the crab Pachygrapsus crassipes and the crayfish Procambarus sp. was investigated. Although deatalking induces an increase in the rate of 14C-1-acetate incorporation into lipid, injections of crustecdysone into intermolt animals fail to elicit a similar response. In addition, the increased rate of lipid synthesis induced by destalking is unaffected by removal of the Y-organ. It would appear then that the increase in lipid synthesis characteristic of early premolt is not controlled by either crustecdysone or the Y-organ. It is suggested that formation of acetyl-CoA by any one of a number of possible mechanisms may bethe manner in which the increase in fatty acid synthesis is effected during premolt.


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