The Juvenile Hormones

Author : L. Gilbert
Publisher : Springer Science & Business Media
Page : 582 pages
File Size : 55,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781468479478

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The Juvenile Hormones by L. Gilbert Pdf

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.

Author : Anonim
Publisher : ScholarlyEditions
Page : 27 pages
File Size : 48,6 Mb
Release : 2012-01-09
Category : Medical
ISBN : 9781464950988

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Juvenile Hormones: Advances in Research and Application: 2011 Edition by Anonim Pdf

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/.

Author : Julius Menn
Publisher : Elsevier
Page : 358 pages
File Size : 44,8 Mb
Release : 2012-12-02
Category : Nature
ISBN : 9780323154338

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Insect Juvenile Hormones by Julius Menn Pdf

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.

Author : J. Hoffmann,M. Porchet
Publisher : Springer Science & Business Media
Page : 535 pages
File Size : 40,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642699221

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Biosynthesis, Metabolism and Mode of Action of Invertebrate Hormones by J. Hoffmann,M. Porchet Pdf

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."

Author : Lawrence I. Gilbert
Publisher : Academic Press
Page : 589 pages
File Size : 53,8 Mb
Release : 2011-07-26
Category : Science
ISBN : 9780123848512

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Insect Endocrinology by Lawrence I. Gilbert Pdf

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

Author : A.R. McCaffery,I.D. Wilson
Publisher : Springer Science & Business Media
Page : 372 pages
File Size : 55,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9781468480627

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Chromatography and Isolation of Insect Hormones and Pheromones by A.R. McCaffery,I.D. Wilson Pdf

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.

Author : K. Slama,M. Romanuk,F. Sorm
Publisher : Springer Science & Business Media
Page : 486 pages
File Size : 46,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783709183311

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Insect Hormones and Bioanalogues by K. Slama,M. Romanuk,F. Sorm Pdf

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.

Author : Anonim
Publisher : ScholarlyEditions
Page : 42 pages
File Size : 53,8 Mb
Release : 2012-12-26
Category : Medical
ISBN : 9781481620697

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Juvenile Hormones—Advances in Research and Application: 2012 Edition by Anonim Pdf

Juvenile Hormones—Advances in Research and Application: 2012 Edition is a ScholarlyBrief™ that delivers timely, authoritative, comprehensive, and specialized information about Juvenile Hormones in a concise format. The editors have built Juvenile Hormones—Advances in Research and Application: 2012 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: 2012 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/.

Author : H. Frederik Nijhout
Publisher : Princeton University Press
Page : 284 pages
File Size : 40,5 Mb
Release : 1998-02-22
Category : Nature
ISBN : 0691059128

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Insect Hormones by H. Frederik Nijhout Pdf

Although insect endocrinology is one of the oldest and most active branches of insect physiology, its classic general texts are long out of date, while its abundant primary literature provides little biological context in which to make sense of the discipline as a whole. In this book, H. Frederik Nijhout's goal is to provide a complete, concise, and up-to-date source for students and nonspecialists seeking an overview of the dynamic and wide-ranging science that insect endocrinology has become since its beginnings nearly eighty years ago in the study of insect metamorphosis. The author offers a comprehensive survey of the many roles that hormones play in the biology of insects. Among the topics discussed are the control of molting, metamorphosis, reproduction, caste determination in social insects, diapause, migration, carbohydrate and lipid metabolism, diuresis, and behavior. The account features a summary of the most current and accurate thinking on the complex roles of ecdysone and juvenile hormone in the control of metamorphosis, a process still misunderstood and misrepresented in biological textbooks and many professional reviews. Throughout, the book's emphasis is on the biology of the organism and the ways in which physiological and developmental regulatory mechanisms are integrated into the insect's life cycle.

Author : Bernhard Kleine,Winfried G. Rossmanith
Publisher : Springer
Page : 437 pages
File Size : 47,9 Mb
Release : 2016-02-11
Category : Medical
ISBN : 9783319150604

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Hormones and the Endocrine System by Bernhard Kleine,Winfried G. Rossmanith Pdf

This book focuses on hormones, and on how they are produced in very diverse regions of the body in humans and animals. But hormones can be found not only in vertebrates, but also in insects, shellfish, spiders, mollusks, even at the origin of metazoan diversification and exhibit the same pathways of synthesis. The book addresses the different classes of hormones: protein/peptides hormones, steroids and juvenile hormones and hormones like catecholamines, thyroid hormones and melatonin. It also discusses the types of hormone receptors, the majority of which are heptahelical G-protein coupled receptors or nuclear receptors. Particular attention is paid to the organs where hormones are created, with specifics on hormonal production and release, while a dedicated chapter details hormonal regulation from very simple to highly complex schemes. The remarkable kinetics of hormones production are also shown, before the book is rounded out by chapters on evolution in the endocrine system, the genetics of endocrine diseases and doping.

Author : Jelisaveta Ivanovic
Publisher : CRC Press
Page : 285 pages
File Size : 51,7 Mb
Release : 2018-01-31
Category : Science
ISBN : 9781351090131

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Hormones and Metabolism in Insect Stress by Jelisaveta Ivanovic Pdf

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.

Author : Xavier Belles
Publisher : Academic Press
Page : 303 pages
File Size : 44,7 Mb
Release : 2020-03-14
Category : Science
ISBN : 9780128130216

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Insect Metamorphosis by Xavier Belles Pdf

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

Author : J. J. Menn,M. Beroza
Publisher : Unknown
Page : 128 pages
File Size : 45,9 Mb
Release : 1972
Category : Electronic
ISBN : OCLC:500610405

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Insect Juvenile Hormones by J. J. Menn,M. Beroza Pdf

Author : James Devillers
Publisher : CRC Press
Page : 410 pages
File Size : 49,6 Mb
Release : 2013-05-06
Category : Science
ISBN : 9781466513228

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Juvenile Hormones and Juvenoids by James Devillers Pdf

Juvenile hormones (JHs) are a group of structurally related sesquiterpenes secreted by the insect corpora allata. They affect most insect life-cycle stages and physiological functions, including embryogenesis, larval and adult development, metamorphosis, reproduction, metabolism, diapause, polyethism, and migration. Juvenoids such as methoprene, hy

Author : Elizabeth Adkins-Regan
Publisher : Princeton University Press
Page : 436 pages
File Size : 45,8 Mb
Release : 2005-08-07
Category : Psychology
ISBN : 0691092478

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Hormones and Animal Social Behavior by Elizabeth Adkins-Regan Pdf

This book is a graduate level guide to the intersection between animal social behaviour and behavioural endocrinology. The fascinating connections between steroids, peptides and social behaviour are explored through an integrative and comparative approach combining various methods.