, Volume 36, Issue 6, pp 682-683

The transfer of juvenile hormone from male to female during mating in the Cecropia silkmoth

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Summary

The juvenile hormone (JH) stored in the accessory sex glands (ASG) of adult maleHyalophora cecropia (L.) originates both from sequestration of circulating hormone and from JH synthesized de novo in the ASG from JH acid taken up from the hemolymph. The secretions present in the lumina of the ASG contain most of the accumulated JH. During mating, endogenous JH, labeled biosynthetically via injected [3H-methyl]-methionine, is transferred along with the other seminal material to the bursa copulatrix of the female. The physiological significance of the JH transfer remains unknown.

Research was supported by a grant from the National Science Foundation (PCM72-01892) and Organized Research Funds from Texas A&M University.
This work was done as partial fulfillment for the degree of Doctor of Philosophy.