The Juvenile Hormones

Herausgegeben:Gilbert, L.

• Broschiertes Buch

Produktbeschreibung

The juvenile hormones of insects are unique molecules in terms of their chemical nature (methyl esters of sesquiterpene epoxides) and action (both as modulators of morphogenesis during the larval life of insects and as a gonadotropic agent in many female adults). Although a symposium dedicated to the chemistry, metabolism and effects of juvenile hormone at a number of levels would be merited on the basis of its interest to the chemist, physiologist, endo crinologist, developmental biologist and entomologist, the juvenile hormones are special in the sense that juvenile hormone mimics (juvenoids, insect growth regulators, analogs) are currently being utilized to control various insec. t pests. Indeed, a number of commercial firms are currently developing new compounds with juven ile hormone activity that might possess a narrow spectrum of acti vity and which would be relatively biodegradable. Thus, a symposium on the juvenile hormones is also merited on a practical basis since juvenoids are already becoming constituents of our environment and it is apparent that in order to design effective mimics of the natural juvenile hormones, o~e should understand the means by which juvenile hormone elicits its effects. As will become evident to the reader, the great majority of data presented at this symposium have not been published previously and the symposium itself was organized along natural divisions dealing with the chemistry, metaoolism and multi-level modes of action of the juvenile hormones. Special lectures were presented by Professors C. M. Williams, B. W. O'Malley and W. S.

Produktdetails

• Verlag: Springer / Springer US / Springer, Berlin
• Softcover reprint of the original 1st ed. 1976
• Seitenzahl: 588
• Erscheinungstermin: 4. Mai 2012
• Englisch
• Abmessung: 254mm x 178mm x 32mm
• Gewicht: 1104g
• ISBN-13: 9781468479492
• ISBN-10: 1468479490
• Artikelnr.: 40771798

Inhaltsangabe

Introductory Lecture.- Juvenile Hormone....In Retrospect and in Prospect.- I. Chemistry of the Juvenile Hormones and Juvenile Hormone Analogs.- Summary of Session I.- On the Identity of the Juvenile Hormone in Insects.- Structure Activity Relationships in Some Juvenile Hormone Analogs.- Phenylethers as Insect Growth Regulators: Laboratory and Field Experiments.- A Competitive Binding Protein Assay for Juvenile Hormone.- II. Biosynthesis and Metabolism of Juvenile Hormone.- Summary of Session II.- Determination of the Physiological Levels of Juvenile Hormones in Several Insects and Biosynthesis of the Carbon Skeletons of the Juvenile Hormones.- Isolation and Identification of Juvenile Hormones by Means of a Radioactive Isotope Dilution Method: Evidence for JH III in Eight Species from Four Orders.- Enzymatic Synthesis of Juvenile Hormone in Manduca sexta.- Farnesenic Acid Stimulation of Juvenile Hormone Biosynthesis as an Experimental Probe in Corpus Allatum Physiology.- Continuous Monitoring of Juvenile Hormone Release by Superfused Corpora Allata of Periplaneta americana.- III. Juvenile Hormone Effects at the Cellular Level.- Summary of Session III.- Relationship Between DNA Synthesis, Juvenile Hormone, and Metamorphosis in Galleria Larvae.- Juvenile Hormone Control of Epidermal Commitment In Vivo and In Vitro.- Action of Juvenile Hormone on Imaginal Discs of the Indian Meal Moth.- Ecdysone Deficiency in Juvenile Hormone Treated Larvae of the German Cockroach, Biattella germanica (L.).- The Antagonism Between Juvenile Hormone and Ecdysone.- The Interaction of Juvenile Hormone and Ecdysone: Antagonistic, Synergistic, or Permissive?.- The Role of Juvenile Hormone in Diapause and Phase Variation in Some Lepidopterous Insects.- Action of Juvenoids on Different Groups of Insects.- IV. Juvenile Hormone Effects at the Molecular Level (Binding and Transport).- Summary of Session IV.- Interaction of Juvenile Hormone with Binding Proteins in Insect Hemolymph.- The Binding of Juvenile Hormone to Larval Epidermis: Influence of a Carrier Protein from the Hemolymph of Plodia interpunctelia.- The Binding Protein as a Modulator of Juvenile Hormone Stability and Uptake.- The Degradative Metabolism of Juvenoids by Insects.- Special Lecture.- Discovery of Insect Antiallatotropins.- V. Effects of Juvenile Hormone at the Molecular Level (Protein Synthesis).- Summary of Session V.- An Analysis of Leucine tRNAs During the Development of Tenebrio molitor.- The Effects of Juvenile Hormone on Imaginal Discs of Drosophila In Vitro: The Role of the Inhibition of Protein Synthesis.- A Genetic Approach to the Study of Juvenile Hormone Control of Vitellogenesis in Drosophila melanogaster.- Induction of the Insect Vitellogenin In Vivo and In Vitro.- Juvenile Hormone Induced Biosynthesis of Vitellogenin in Leucophaea maderae from Large Precursor Polypeptides.- Juvenile Hormone Control of Vitellogenin Synthesis in Locusta migratoria.- Concluding Lecture.- Mechanism of Steroid Hormone Action: In Vitro Control of Gene Expression in Chick Oviduct Chromatin by Purified Steroid Receptor Complexes.- List of Participants.