Hormonal Control of Molting and Reproduction in Ticks
نویسندگان
چکیده
منابع مشابه
Hormonal regulation of metamorphosis and reproduction in ticks.
The presence of a "status quo" hormone like JH has not been found in ticks. The most advanced understanding of tick endocrinology is associated with female reproduction, where the sequence of the first messages for storage proteins (vitellogenin (Vg) and carrier protein), the Vg receptor, and male peptidic pheromones were recently reported. The current consensus model suggests that ecdysteroids...
متن کاملHormonal control of tick development and reproduction.
Ecdysteroids (moulting hormones), juvenoids and neuropeptides in ticks are reviewed but, by far, the emphasis is on the former since this class of hormones has been the subject of most investigations. In immature stages of ticks, ecdysteroids have been shown to regulate moulting and to terminate larval diapause. Although there is a paucity of information on the molecular action of ecdysteroids ...
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15 صفحه اولHormonal Control of Reproduction in Fish for Induced Spawning
Reproduction in fishes is regulated by external environmental factors that trigger internal mechanisms into action. The final event of the reproductive cycle, the release of eggs and sperm resulting in spawning, can be controlled by either placing the fish in an appropriate environment or by changing the fish’s internal regulating factors with injected hormones or other substances. The internal...
متن کاملHormonal regulation of molting and metamorphosis in Manduca sexta
Manduca sexta has been studied extensively and shown to be primarily under the control of juvenile hormone (JH) and ecdysteroids (reviewed by Nijhout, 1994; Gäde et al., 1997). During larva–larva molts, the release of ecdysteroids signals the end of the feeding stage and the initiation of the molting process, and, in the presence of JH, growth is directed to the expression of larval characteris...
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ژورنال
عنوان ژورنال: American Zoologist
سال: 1993
ISSN: 0003-1569
DOI: 10.1093/icb/33.3.384