Download or read book Recent Developments in Insect Neurohormones written by M. Raabe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most striking fact revealed by investigations of insect neurohormones is that insects are as well supplied with neurohormones as mammals, since neurohor mones regulate not only the functioning of the endocrine glands, prothoracic gland, and corpora allata, but also most physiological processes. Our knowledge of neurohormones developed originally from anat omocytological investigations and experimental studies. Today, accurate bio assays have been devised for studying both in vivo and in vitro physiological processes, and RIA determination has yielded knowledge of titer modifications of humoral factors. Much is also known about neurohormone purification, and several neurohormones have even been identified in different species. Immunocytochemistry has made it possible to demonstrate in their origin and release sites the presence of insect neurohormones whose structure has been elucidated. Moreover, the presence of vertebrate and invertebrate neuropeptides has been demonstrated in insects. As regards biogenic amines, methods of detection have been greatly refined and it is now possible to identify the cell bodies and axons of the main biogenic amines. Other new methods, such as cobalt chloride impregnation or Lucifer yellow staining, have revealed the axonal pathways and the location of particular neurons. The mechanisms of action of neurohormones have been investigated in several cases and the results of these investigations will be related in the chapters which follow.
Download or read book Insect Hormones and Bioanalogues written by K. Slama and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Insect Neurohormones written by Marie Raabe and published by Springer. This book was released on 1982-08 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of insect neurohormones dates from the earliest experimental in vestigations in insect endocrines, and the matter cannot be discussed without evoking the names of its pioneers-Kopec, Wigglesworth, Fraenkel. Whereas the experiments demonstrated the existence of the first known neurohormones, the formulation of the concept of neurosecretion was of fundamental importance to further progress, and tribute must be paid to Ernst and Berta Scharrer. The recent proliferation of investigations into insect neurohormones has cre ated the need for an overall review of the data. Our knowledge of the subject is voluminous, and the evidence clearly demonstrates that neurohormones playa part in most insect regulatory processes. This book analyzes and synthesizes the data, starting from neurosecretion (i.e., source sites and release modes of neurohormones) and continuing through the various functions in which neurohormones have been shown to be involved: endocrine gland activity; diapause; reproduction; visceral muscle functioning; color change; behavior; water and ion balance; protein, sugar, and lipid metabo lism; and tanning and other processes occurring at the cuticle level. In each chapter, besides the experimental information, technical procedures as well as recent information concerning purification of the particular neurohor mones and their mode of action are reported. Numerous exhaustive tables allow the reader to get an overview of the matter while the major findings of the mo ment are presented in the conclusion of each chapter.
Download or read book Hormones and Metabolism in Insect Stress written by Jelisaveta Ivanovic and published by CRC Press. This book was released on 2018-01-31 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Neuropeptide Systems as Targets for Parasite and Pest Control written by Timothy G. Geary and published by Springer Science & Business Media. This book was released on 2011-01-13 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need to continually discover new agents for the control or treatment of invertebrate pests and pathogens is undeniable. Agriculture, both animal and plant, succeeds only to the extent that arthropod and helminth consumers, vectors and pathogens can be kept at bay. Humans and their companion animals are also plagued by invertebrate parasites. The deployment of chemical agents for these purposes inevitably elicits the selection of resistant populations of the targets of control, necessitating a regular introduction of new kinds of molecules. Experience in other areas of chemotherapy has shown that a thorough understanding of the biology of disease is an essential platform upon which to build a discovery program. Unfortunately, investment of research resources into understanding the basic physiology of invertebrates as a strategy to illuminate new molecular targets for pesticide and parasiticide discovery has been scarce, and the pace of introduction of new molecules for these indications has been slowed as a result. An exciting and so far unexploited area to explore in this regard is invertebrate neuropeptide physiology. This book was assembled to focus attention on this promising field by compiling a comprehensive review of recent research on neuropeptides in arthropods and helminths, with contributions from many of the leading laboratories working on these systems.
Download or read book Advances in Insect Physiology written by and published by Academic Press. This book was released on 2009-10-14 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Insect Physiology publishes volumes containing important, comprehensive and in-depth reviews on all aspects of insect physiology. It is an essential reference source for invertebrate physiologists and neurobiologists, entomologists, zoologists and insect biochemists. First published in 1963, the serial is now edited by Steven Simpson and Jerome Casas to provide an international perspective. This volume is a thematic volume focusing on locust phase polyphenism. Contributions from the leading researchers in entomology Discusses the physiological diversity in insects Includes in-depth reviews with valuable information for a variety of entomology disciplines
Download or read book Insect Reproduction written by S. R. Leather and published by CRC Press. This book was released on 2018-01-18 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consisting of ten review chapters contributed by leading workers in their respective fields, from around the world, covers the whole subject of insect reproduction.It begins with the basic physiological questions of insect reproduction, moves on to discuss the new advances seen in the fields of behavioural and ecological mechanisms, and culminates by examining the recent work on evolutionary biology and its application in the field. Each chapter, although including a brief review of the basic seminal work, focuses mainly on the advances made within the last ten years and highlights those areas in which the respective authors see the greatest scope for further important advances
Download or read book Insect Neuroendocrines written by V.B. Awasthi and published by Scientific Publishers. This book was released on 2005-04-01 with total page 433 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the author has been to present an account of the neuroendocrine system of insects, the super importance of which is well established, and also to provide information as far as possible directly, through the ultrastructural illustrations. Besides, an account of some of the hormonally controlled phenomena of vital significance is given. It is hoped that the theoretical account, and a large number of ultrastructural illustrations of some of the prominent pioneer authors included in the book, will provide ample information to the post graduate students and research scholars of insect neuroendocrinology as well as to those engaged in carrying out researches on comparative endocrinology, insect ethology, cell biology and developmental biology in various universities and acquaint them well with almost all the components of the neuroendocrine system in the active, inactive and various developmental stages, alongwith ultrastructural changes occurring in the cells and their organelles, that are associated with specific functions. I do hope that the book will stimulate the readers and serve as a "text book cum basic research monograph'' on the subject. The book also contains a list of selected bibliography for a detailed study.
Download or read book Insect Neurohormones written by Marie Raabe and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of insect neurohormones dates from the earliest experimental in vestigations in insect endocrines, and the matter cannot be discussed without evoking the names of its pioneers-Kopec, Wigglesworth, Fraenkel. Whereas the experiments demonstrated the existence of the first known neurohormones, the formulation of the concept of neurosecretion was of fundamental importance to further progress, and tribute must be paid to Ernst and Berta Scharrer. The recent proliferation of investigations into insect neurohormones has cre ated the need for an overall review of the data. Our knowledge of the subject is voluminous, and the evidence clearly demonstrates that neurohormones playa part in most insect regulatory processes. This book analyzes and synthesizes the data, starting from neurosecretion (i.e., source sites and release modes of neurohormones) and continuing through the various functions in which neurohormones have been shown to be involved: endocrine gland activity; diapause; reproduction; visceral muscle functioning; color change; behavior; water and ion balance; protein, sugar, and lipid metabo lism; and tanning and other processes occurring at the cuticle level. In each chapter, besides the experimental information, technical procedures as well as recent information concerning purification of the particular neurohor mones and their mode of action are reported. Numerous exhaustive tables allow the reader to get an overview of the matter while the major findings of the mo ment are presented in the conclusion of each chapter.
Download or read book Agricultural Insect Pests and Their Control 2nd Ed written by V.B. Awasthi and published by Scientific Publishers. This book was released on 2017-03-01 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has been mainly written keeping in view the requirements of the students of Agricultural Entomology of various Universities. The book provides a brief account on the structure, function, development and metamorphosis, and a comprehensive account on almost all the methods of pest control. The nature of damage caused by the important insect pests of crops, their life histories and control have been described. It is hoped that the students of Agricultural Entomology, will find the book extremely useful. The book is also useful to the Plant Protection Departments and similar Institutions. The book will also be useful to those who are preparing for competitive examinations conducted by various central and state Government agencies for recruitment. Every attempt has been made to provide necessary information from the point of view of students of Agricultural Entomology, which is not available in other books.
Download or read book Introduction to General and Applied Entomology 3rd Ed written by V.B. Awasthi and published by Scientific Publishers. This book was released on 2016-01-02 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text book aims at to provide an up to date, general and applied account of Entomology which is written in a simple and lucid language keeping in view the syllabi of Entomology in M.Sc. Zoology & M.Sc. (Ag.) of various Indian Universities. The book will also be useful to those who are preparing for competitive examinations conducted by various central & state Government agencies for recruitment. The book is equally useful to those dealing with pests and pest control. It is hoped the book will be useful not only to students but also to agriculturist, horticulturist, foresters, veterinary and clinical doctors and laymen dealing with pest control.
Download or read book Principles of Insect Behaviour 2nd Ed written by V.B. Awasthi and published by Scientific Publishers. This book was released on 2013-07-01 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of writing this book has been to provide an account of the principles of insect behaviour for the post graduate students of Entomology and general Zoology of all the Universities and Research Institutions as well as to the research scholars engaged in the study of different aspects of Insect behaviour. It is also useful to general readers who have basic knowledge of Biology and have curiosity to know why the insects are vividly coloured, have peculiar shapes, produce sound and light; how they communicate and why bees and wasps sting when disturbed. Significance of insects in pollination of plants associated with the production of seeds, gains and fruits, the role of hormones, pheromones and other chemicals controlling various vital events of the insect behaviour has also been described. The importance of insect migration, control of insect pests by behavioural means has also been discussed. Thus, this book deals with almost all major aspects of insect behaviour. It is hoped that this book will be useful not only to the students of Entomology-Zoology and research scholars of insect behaviour, but also to naturalists who wish to know about some of the mysteries of these small creatures and their lifestyle.
Download or read book Entomology written by Cedric Gillott and published by Springer Science & Business Media. This book was released on 2005-12-27 with total page 835 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gillott’s thorough yet clear writing style continues to keep Entomology near the top of the class as a text for senior undergraduates, and for graduate students and professionals seeking an introduction to specific entomological topics. The author’s long-held belief that an introductory entomology course should present a balanced treatment of the subject is reflected in the continued arrangement of the book in four sections: Evolution and Diversity, Anatomy and Physiology, Reproduction and Development, and Ecology. For the third edition, all chapters have been updated. This includes not only the addition of new information and concepts but also the reduction or exclusion of material no longer considered "mainstream", so as to keep the book at a reasonable size. Based on exciting discoveries made during the previous decade, the topics of insect evolutionary relationships, semiochemicals, gas exchange, immune responses (including those of parasites and parasitoids), flight, and the management of pests have received particular attention in the preparation of the third edition. Overall, more than 30 new or significantly revised figures have been incorporated.
Download or read book Vol 2 Morphology Physiology and Development written by Niels Kristensen and published by Walter de Gruyter. This book was released on 2012-10-24 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive english-language reference work on morphology, physiology and development of the moths and butterflies of the world. Written by a truly international team of specialists, the overall level of expertise of the book is unsurpassed, and several chapters present substantial amounts of original information. The book is richly illustrated, and all chapters have extensive bibliographies. Volume I has been published in 1998 and covers the evolution, systematics and biogeography of Lepidoptera. The goal of both volumes is to provide an overview of the current state of knowledge of this outstandingly important insect group.
Download or read book The Insects written by P. J. Gullan and published by John Wiley & Sons. This book was released on 2009-02-05 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: TO ACCESS THE ARTWORK FROM THE BOOK, PLEASE VISITwww.blackwellpublishing.com/gullan. This established and popular textbook is the definitive guide tothe study of insects; a group of animals that represent over halfof the planet’s biological diversity. Completely updated and expanded, this new edition examines allaspects of insect biology including anatomy and physiology, ecologyand evolution of insects, insect behaviours such as sociality,predation, parasitism and defense, medical and veterinaryentomology and methods of collection, preserving and identifyinginsects. Features new chapters on the methods and results of studies ofinsect phylogeny and a new review of insect evolution andbiogeography. Includes expanded sections on species diversity, socialbehaviour, pest management, aquatic entomology, parasitology andmedical entomology. Successful strategies in insect conservation are also coveredfor the first time, reflecting the increasing threat to naturalecosystems from environmental changes. Boxes highlighting key themes, suggestions for further readingand illustrations, including specially commissioned drawings andcolour plates, are included throughout. The artwork from the text is available for instructors eithervia CD-ROM or by visiting www.blackwellpublishing.com/gullan.
Download or read book Ecofriendly Pest Management for Food Security written by Omkar and published by Academic Press. This book was released on 2016-02-03 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecofriendly Pest Management for Food Security explores the broad range of opportunity and challenges afforded by Integrated Pest Management systems. The book focuses on the insect resistance that has developed as a result of pest control chemicals, and how new methods of environmentally complementary pest control can be used to suppress harmful organisms while protecting the soil, plants, and air around them. As the world’s population continues its rapid increase, this book addresses the production of cereals, vegetables, fruits, and other foods and their subsequent demand increase. Traditional means of food crop production face proven limitations and increasing research is turning to alternative means of crop growth and protection. Addresses environmentally focused pest control with specific attention to its role in food security and sustainability. Includes a range of pest management methods, from natural enemies to biomolecules. Written by experts with extensive real-world experience.
Download or read book Progress in Mosquito Research written by and published by Academic Press. This book was released on 2016-08-25 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in Mosquito Research provides readers with the latest interdisciplinary reviews on the topic. It is an essential reference source for invertebrate physiologists, neurobiologists, entomologists, zoologists, and insect chemists, with Volume 51 focusing on recent progress in mosquito research. Presents a comprehensive overview of recent progress in mosquito science Written by leaders in their respective areas of mosquito research Ideal resource for invertebrate physiologists, neurobiologists, entomologists, zoologists, and insect chemists
