Precocene I and II Inhibition of Vitellogenic Oöcyte Development in Drosophila melanogaster
Document Type
Article
Publication Title
Journal of Insect Physiology
Abstract
Adult female Drosophila melanogaster were exposed to precocene I and II, antiallatropin compounds which result in juvenile hormone deficiency in many insects. The presence of juvenile hormone in Drosophila adults was evaluated by examining vitellogenic oöcyte development, a process regulated by juvenile hormone in these flies. Both precocenes reduced the number of vitellogenic oöcytes present 43 hr after exposure in a dose-dependent manner. Precocene I was effective when applied to either newly eclosed females prior to vitellogenic oöcyte development or to gravid females. Precocene I was also effective in decapitated females, indicating that the action of the compound is not mediated by the brain. Corpus allatum volume, presumably a reflection of secretory activity, increased between 0 and 24 hr after eclosion in control females but not in precocene-treated females even after 48 hr. However, when females were removed from precocene medium, gland volumes increased within 48 hr to approximately those of control flies. This result is consistent with the reversibility of the precocene effect on Drosophila adults. These results suggest that precocene acts on the corpus allatum of Drosophila adult females to produce juvenile hormone deficiency.
DOI
10.1016/0022-1910(83)90091-4
Publication Date
1983
Keywords
Drosophila melanogaster, juvenile hormone, oögenesis, Precocene
ISSN
1879-1611
Recommended Citation
Wilson TG, Landers MH, Happ GM. Precocene I and II Inhibition of Vitellogenic Oöcyte Development in Drosophila melanogaster. Journal of Insect Physiology. 1983; 29(3). doi: 10.1016/0022-1910(83)90091-4.