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Effects of octopamine on reproduction, juvenile hormone metabolism, dopamine, and 20-hydroxyecdysone contents in Drosophila.
The effect of an experimentally increased octopamine content (feeding flies with OA) on the levels of juvenile hormone (JH) degradation, dopamine (DA), and 20-hydroxyecdysone (20E) contents,Expand
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Interplay of JH, 20E and biogenic amines under normal and stress conditions and its effect on reproduction.
Juvenile hormone (JH) and 20-hydroxyecdysone (20E) are well known to play a gonadotropic role in adult insects. In Drosophila the mechanism of reciprocal regulation of JH and 20E is shown to beExpand
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Heat stress affects oogenesis differently in wild‐type Drosophila virilis and a mutant with altered juvenile hormone and 20‐hydroxyecdysone levels
The link between reproduction and environmental signals is poorly understood at the physiological, genetic and molecular levels. We describe a mutant strain of Drosophila virilis that has alteredExpand
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Altered juvenile hormone metabolism, reproduction and stress response in Drosophila adults with genetic ablation of the corpus allatum cells.
Juvenile hormone (JH), which controls many developmental and physiological processes in Drosophila melanogaster, is synthesized de novo in the specialized endocrine glands, corpus allatum (CA). TheExpand
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Mechanisms of age-specific regulation of dopamine metabolism by juvenile hormone and 20-hydroxyecdysone in Drosophila females
Abstract20-hydroxyecdysone (20E) and the juvenile hormone (JH) have an age-specific effect on total dopamine (DA) content in Drosophila (Gruntenko and Rauschenbach 2008). Earlier we studied theExpand
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Stress response in a juvenile hormone‐deficient Drosophila melanogaster mutant apterous56f
The apterous56f (ap56f) mutation leads to increases in juvenile hormone (JH) degradation levels and JH‐esterase makes a greater contribution to the increase than JH‐epoxide hydrolase. Dopamine levelsExpand
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Stress-reactivity and juvenile hormone degradation in Drosophila melanogaster strains having stress-related mutations.
Juvenile hormone (JH) degradation was studied under normal and stress conditions in young and matured females of Drosophila melanogaster strains having mutations in different genes involved inExpand
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Effects of dopamine on juvenile hormone metabolism and fitness in Drosophila virilis.
The effects of dopamine (DA) on juvenile hormone (JH) metabolism and fitness (estimated as fecundity and viability levels under heat stress (38 degrees C)) in Drosophila virilis have been studied. AnExpand
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Metabolism of the juvenile hormone in Drosophila adults under normal conditions and heat stress: Genetical and biochemical aspects
Abstract By means of ion exchange chromatography two forms of JH-esterase were identified in D. virilis. One was sensitive to diisopropylphosphofluridate (DFP) and one was DFP-insensitive. It wasExpand
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The effect of mutations altering biogenic amine metabolism in Drosophila on viability and the response to environmental stresses.
Dopamine (DA) content, tyrosine decarboxylase (TDC) activity and survival were studied under normal and environmental stress conditions in the ste and e strains carrying ebony mutation increasing DAExpand
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