Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Juvenile hormones"”.
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RNA interference with allatoregulating neuropeptide genes affecting circadian rhythm, development, mating and reproduction of Spodoptera frugiperda (Lepidoptera: Noctuidae)
Juvenile hormones (JHs) have juvenoid functions but also act as a true gonadotropin in the Lepidoptera. JHs are released by the corpora allata (CA) into the hemolymph, which are under allatotropic and allatostatic neuropeptide control as well as under somatic and environmental stimulus. Two types …
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Molecular characterization and functional analysis of cytochrome P450 genes in the yellow fever mosquito Aedes aegypti (Diptera: Culicidae)
… and endogenous compounds, including juvenile hormones, ecdysteroids and fatty acids, in insects. Despite rapid advances in revealing various P450 genes in insects, our knowledge on the role of these genes in detoxification of insecticides is very limited. This research was to perform …
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Factors regulating signal composition and task allocation in colonies of the ant Myrmicaria eumenoides
… past. Most of the evidence to-date suggests that juvenile hormones (JHs) and ecdysteroids are the prime endocrine control candidates. The aim of this project is to investigate how signalling and task allocation are dynamically governed in M. eumenoides colonies. Firstly, the CHC profiles of …
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Measuring juvenile hormone and ecdysteroid titers in insect haemolymph simultaneously by LC-MS: The basis for determining the effectiveness of plant-derived alkaloids as insect growth regulators
… spectrometry (LC-MS) method to monitor hormones and their metabolites in the haemolymph of insects simultaneously. Furthermore, some plant-derived alkaloids were structurally elucidated, which may be used as insect growth regulators thus affecting haemolymph hormone titers in putative …
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Inhibition of a juvenile hormone analogue by organic acids in tests with Musca domestica L. and Oncopeltus fasciatus (Dallas)
Thesis (M.S.)--Michigan State University. Dept. of Entomology, 1971
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Hormonal regulation and environmental influences in the reproduction of the butterfly Bicyclus anynana
… and choriogenesis seem to depend exclusively on juvenile hormones (JH). Using a JH mimic (pyriproxyfen) and an antagonist of JH biosynthesis (MK-801), reproduction in B. anynana could be successfully manipulated towards either a higher or lower fecundity. Especially early fecundity responded to …
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Isolation and characterization of the B-type allatostatin gene of Gryllus bimaculatus de Geer (Ensifera, Gryllidae)
… inhibitory functions on the biosynthesis of juvenile hormones (JH) in vitro in the corpora allata (CA) as well as on ecdysteroid biosynthesis in the ovary of adult crickets (Gryllus bimaculatus). To understand the mechanisms of function of the pleiotropic cricket B type allatostatins, it is …