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Insect Juvenile Hormones

Insect Juvenile Hormones
Author: Julius Menn
Publisher: Elsevier
Total Pages: 358
Release: 2012-12-02
Genre: Nature
ISBN: 0323154336
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Insect Juvenile Hormones: Chemistry and Action reviews the state of knowledge on juvenile hormones (JH) and analogs. The book emerged from the presentations and deliberations at the Symposium on the Chemistry and Action of Insect Juvenile Hormones, sponsored by the Division of Pesticide Chemistry of the American Chemical Society at the 162nd National Meeting of the Society in Washington, D. C., September 12-17, 1971. The book summarizes what is known about JH their analogs; their chemistry; their biological effects and mode of action; their biochemical fate in target and nontarget organisms; and their stability. Although divided into three general areas for convenience—biological, biochemical, and chemical—the text in its entirety is a multidisciplinary discourse, a foundation upon which the understanding of the action or inaction of JH and JH-active chemicals may be based, which hopefully will provide a springboard for future direction and research. This book will be of interest to chemists, biochemists, biologists, endocrinologists, entomologists, insect physiologists, and others concerned with insect development and control.

The Juvenile Hormones

The Juvenile Hormones
Author: L. Gilbert
Publisher: Springer Science & Business Media
Total Pages: 582
Release: 2012-12-06
Genre: Science
ISBN: 1468479474
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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.

Insect Hormones and Bioanalogues

Insect Hormones and Bioanalogues
Author: K. Slama
Publisher: Springer Science & Business Media
Total Pages: 486
Release: 2012-12-06
Genre: Science
ISBN: 3709183316
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The application of organic insecticides in the agrotechnical praxis resulted in a great and unexpected progress in the control of insect pests, and was of a great economical value all over the world. The widespread application of these agents, however, is also accompanied by negative effects. The principal drawback of classical insecticides consists in the lack of their specificity, the useful insects being killed together with insect pests. Furthermore, the broad-scale application for many years led to the formation of more resistant insect strains requiring higher and higher doses of insecticides. The residues of the mostly used chlorinated compounds accumulate in human and animal foods producing directly or indirectly harmful effects in human sub jects. The critical situation led in many developed countries to the restriction in the usage of some types of classical insecticides. Under these circumstances it is quite natural that novel routes for the control of insect pests are investigated. In this connection, attention has been paid especially to the insect endocrinology and insect hormones which regulate the admirable and in many regards specific development from the egg to the adult insect. The recent successful discoveries in this field are thus in close relation to the practical requirements. Isolation and identification of moulting hor mones and juvenile-hormone-like naturally occurring substances not only made possible an exact investigation of their physiological effects but also stimulated the chemical research.

Insect Juvenile Hormones

Insect Juvenile Hormones
Author: J. J. Menn
Publisher:
Total Pages:
Release: 1972
Genre:
ISBN:
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Insect Endocrinology

Insect Endocrinology
Author: Lawrence I. Gilbert
Publisher: Academic Press
Total Pages: 589
Release: 2011-07-26
Genre: Science
ISBN: 0123848512
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The publication of the extensive seven-volume work Comprehensive Molecular Insect Science provided a complete reference encompassing important developments and achievements in modern insect science. One of the most swiftly moving areas in entomological and comparative research is endocrinology, and this volume, Insect Endocrinology, is designed for those who desire a comprehensive yet concise work on important aspects of this topic. Because this area has moved quickly since the original publication, articles in this new volume are revised, highlighting developments in the related area since its original publication. Insect Endocrinology covers the mechanism of action of insect hormones during growth and metamorphosis as well as the role of insect hormones in reproduction, diapause and the regulation of metabolism. Contents include articles on the juvenile hormones, circadian organization of the endocrine system, ecdysteroid chemistry and biochemistry, as well as new chapters on insulin-like peptides and the peptide hormone Bursicon. This volume will be of great value to senior investigators, graduate students, post-doctoral fellows and advanced undergraduate research students. It can also be used as a reference for graduate courses and seminars on the topic. Chapters will also be valuable to the applied biologist or entomologist, providing the requisite understanding necessary for probing the more applied research areas. Articles selected by the known and respected editor-in-chief of the original major reference work, Comprehensive Molecular Insect Science Newly revised contributions bring together the latest research in the quickly moving field of insect endocrinology Review of the literature of the past five years is now included, as well as full use of data arising from the application of molecular technologies wherever appropriate

Chromatography and Isolation of Insect Hormones and Pheromones

Chromatography and Isolation of Insect Hormones and Pheromones
Author: A.R. McCaffery
Publisher: Springer Science & Business Media
Total Pages: 372
Release: 2012-12-06
Genre: Science
ISBN: 1468480626
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The connection between the study of insects. their development. behaviour and biochemistry. and chromatography is perhaps not immediately obvious. However. this connection exists and it is of fundamental importance to our understanding of many areas of insect physiology. Insects range in size from small to minute and consequently the amounts of hormones or pheromones they produce are equally minute. Ultimately any attempt at understanding the processes which control development, social behaviour or the biochemistry of insects requires some means of isolating the tiny quantities of the hormones and pheromones responsible in sufficient quantity and purity for identification. The ability to devise novel techniques to separate these materials from frequently complex biological mixtures including precursors and metabolites and to devise detection systems for them is vital. Methods for the quantification of these substances at different stages in the life cycle. or in response to environmental change or stress. are then essential. Chromatography. both as a means for isolation and as a method for quantitative analysis. has "been an essential tool in these studies. This volume represents the outcome of a joint international symposium organized by the Chromatographic and Royal Entomological Societies at the University of Reading between the 21st and 23rd March 1989 aimed specifically at discussing the chromatography and isolation of insect hormones. pheromones and related substances.The papers presented at that meeting. and collected together here. covered many aspects of the subject including the chromatography of juvenile hormones. ecdysteroids. peptides. pheromones and semio chemicals.

Hormones and Metabolism in Insect Stress

Hormones and Metabolism in Insect Stress
Author: Jelisaveta Ivanovic
Publisher: CRC Press
Total Pages: 285
Release: 2018-01-31
Genre: Science
ISBN: 1351090135
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This book discusses the effects of both natural (e.g., temperature, humidity, and lack of food) and man-induced stressors (e.g., pollution) on insects. Insect neurohormones and metabolism are emphasized, although all aspects of insect biology are examined. The role of ecdysteroids and juvenile hormones in response to thermal and other stressors is featured, and population studies in insect stress are presented. Entomologists, ecologists, ecophysiologists, physiologists, applied entomologists and others will find Hormones and Metabolism in Insect Stress an important reference resource.

Juvenile Hormones: Advances in Research and Application: 2011 Edition

Juvenile Hormones: Advances in Research and Application: 2011 Edition
Author:
Publisher: ScholarlyEditions
Total Pages: 27
Release: 2012-01-09
Genre: Medical
ISBN: 1464950989
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Juvenile Hormones: Advances in Research and Application: 2011 Edition is a ScholarlyPaper™ that delivers timely, authoritative, and intensively focused information about Juvenile Hormones in a compact format. The editors have built Juvenile Hormones: Advances in Research and Application: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Juvenile Hormones in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Juvenile Hormones: Advances in Research and Application: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Biosynthesis, Metabolism and Mode of Action of Invertebrate Hormones

Biosynthesis, Metabolism and Mode of Action of Invertebrate Hormones
Author: J. Hoffmann
Publisher: Springer Science & Business Media
Total Pages: 535
Release: 2012-12-06
Genre: Science
ISBN: 3642699227
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The neuroendocrine control of reproduction and development of inver tebrates has a long tradition as an important area of research in France. The reader of this volume is certainly familiar with the significant con tributions to this field made by such outstanding scientific personalities as J ean-J acques Bounhiol, Jean Panouse, Bernard Possompes, Pierre and Line Joly, Helene Charniaux-Cotton, Maurice Durchon, Manfred Gabe, Guy Echalier, Marie Raabe, and others. It is therefore not surprising that the Centre National de la Recherche Scientifique (CNRS) sponsored, in 1975 and 1983, two major inter national meetings devoted to this subject. The organizers of the 1975 meeting, which was held in Lille, decided to concentrate on the bio synthesis, metabolism, and mode of action of the invertebrate hor mones. To some extent, Professors Durchon and J oly wanted to convey the message that they felt that the period of classical invertebrate endo crinology had come to an end and that traditional approaches were be ing replaced by biochemical analyses. How right they were is illustrated by the present volume. Today biochemistry, molecular biology, and analytical chemistry are tools of the invertebrate endocrinologist, who now starts his morning work by homogenizing his worm, mollusc, insect . . . and by extracting DNA, steroids, or peptides."

Insect Metamorphosis

Insect Metamorphosis
Author: Xavier Belles
Publisher: Academic Press
Total Pages: 303
Release: 2020-03-14
Genre: Science
ISBN: 0128130210
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Insect Metamorphosis: From Natural History to Regulation of Development and Evolution explores the origin of metamorphosis, how it evolved, and how it is it regulated. The book discusses insect metamorphosis as a key innovation in insect evolution. With most of the present biodiversity on Earth composed of metamorphosing insects—approximately 1 million species currently described, with another 10-30 million still waiting to be discovered, the book delves into misconceptions and past treatments. In addition, the topic of integrating insect metamorphosis into the theory of evolution by natural selection as noted by Darwin in his On the Origin of Species is also discussed. Users will find this to be a comprehensive and updated review on insect metamorphosis, covering biological, physiological and molecular facets, with an emphasis on evolutionary aspects. Features updated knowledge from the past decade on the mechanisms of action of juvenile hormone, the main doorkeeper of insect metamorphosis Aids researchers in entomology or developmental biology dealing with specialized aspects of metamorphosis Provides applied entomologists with recently updated data, especially on regulation, to better face the problems of pest control and management Gives general evolutionary biologists context on the process of metamorphosis in its larger scope