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The ovary as a source of alpha-ecdysone in an adult mosquito.
TLDR
The ovaries of the mosquito Aedes aegypti cultured in vitro secrete material that behaves like ecdysone in a radioimmunoassay, which plays a significant role in stimulating egg development in the adult mosquito and may have reproductive roles in other insects.
Induction of translatable mRNA for dopa decarboxylase in Drosophila: an early response to ecdysterone.
TLDR
Exogenous feeding of ecdysterone to these larvae results in a rapid synthesis of dopa decarboxylase in the epidermal cells, which may be a primary response of these target cells to ecdystersone.
Biosynthesis of lipovitellin by the crustacean ovary.
TLDR
Evidence strongly suggests that the ovary is capable of synthesizing both the lipid and the protein components of the lipovitellin and therefore may not incorporate such moieties intact from the circulating hemolymph.
Ecdysone titers during postembryonic development of Drosophila melanogaster.
TLDR
The level of ecdysone in Drosophila melanogaster was determined by a radioimmune assay in organisms selected between the second larval instar and maturity, suggesting a possible role for ecdYSone in ovarian maturation in this organism.
Aspects of lipid metabolism in crustaceans.
TLDR
The studies indicate that aspects of lipid metabolism may be under endocrine control and that lipids from marine organisms contain more long-chain polyunsaturated fatty acids than does the lipid of fresh water organisms which in turn have a high proportion of C16 and C18 fatty acids.
Trace analysis of ecdysones by gas-liquid chromatography, radioimmunoassay and bioassay.
TLDR
A radioimmunoassay was compared to a gas-liquid Chromatographic assay and a bioassay as a method for quantifying ecdysone titers in arthropods and the carboxyuethoxyamine derivative of β-ecdysone was synthesized and characterized by several spectral methods.
The qualitative and quantitative determinations of ecdysones in tissues of the crab, Pachygrapsus crassipes, following molt induction.
TLDR
From in vitro experiments, it is demonstrated that crab tissues have the ability to convert radiolabeled α- to β-ecdysone and the testis appears to have the greatest capacity for this conversion.
Ecdysone levels during metamorphosis of Drosophila melanogaster.
TLDR
The amount of β -ecdysone found at the time of puparium formation is comparable to the amount required to induce morphogenesis of imaginal discs cultured in vitro.
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