Radiochemical assays of corpus allatum activity in adult female cockroaches following ovariectomy in the last nymphal instar |
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| Authors: | R J Weaver |
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| Institution: | (1) Agricultural Research Council, Unit of Invertebrate Chemistry and Physiology, University of Sussex, Falmer, BN1 9RQ Brighton, East Sussex, (England) |
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| Abstract: | Summary Surgical removal of the ovaries from nymphalPeriplaneta americana results in lower than normal corpus allatum activity in the adult insect and an apparent absence of the manifestly cyclic pattern of juvenile hormone biosynthesis found in intact mated females. The results suggest that the presence of synchronously developing ovaries is necessary for the attainment of normal synthetic activity in the corpus allatum of this species.Acknowledgment. I thank Dr G. E. Pratt for his helpful advice and stimulating discussions on the subject. |
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