Download or read book Plant Virus and Viroid Diseases in the Tropics written by K. Subramanya Sastry and published by Springer Science & Business Media. This book was released on 2014-01-06 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Around the globe, besides fungal and bacterial diseases, both virus and viroid diseases have acquired greater importance in the realm of plant pathology and call for effective management measures as they are responsible for heavy yield losses and are a matter of vital importance and concern to farmers, horticulturists, gardeners and foresters. Understanding disease epidemiology is of vital importance for formulating viable disease management practices in a given agro-ecosystem. The development and progress of plant disease epidemics are variable from region to region. Epidemiology is not a static process, but rather a dynamic course that varies with a change in the ecology, host, vector and virus systems.
Download or read book Seed borne plant virus diseases written by K. Subramanya Sastry and published by Springer Science & Business Media. This book was released on 2013-01-05 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seeds provide an efficient means in disseminating plant virus and viroid diseases. The success of modern agriculture depends on pathogen free seed with high yielding character and in turn disease management. There is a serious scientific concern about the transmission of plant viruses sexually through seed and asexually through plant propagules. The present book provides the latest information along with the total list of seed transmitted virus and viroid diseases at global level including, the yield losses, diagnostic techniques, mechanism of seed transmission, epidemiology and virus disease management aspects. Additional information is also provided on the transmission of plant virus and virus-like diseases through vegetative propagules. It is also well known that seed transmitted viruses are introduced into new countries and continents during large-scale traffic movements through infected germplasm and plant propogules. The latest diagnostic molecular techniques in different virus-host combinations along with disease management measures have been included. The book shall be a good reference source and also a text book to the research scientists, teachers, students of plant pathology, agriculture, horticulture, life sciences, green house managers, professional entrepreneurs, persons involved in quarantines and seed companies. This book has several important features of seed transmitted virus diseases and is a good informative source and thus deserves a place in almost all university libraries, seed companies and research organizations.
Download or read book Encyclopedia of Plant Viruses and Viroids written by K. Subramanya Sastry and published by Springer. This book was released on 2019-12-18 with total page 2936 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Plant Viruses and Viroids provides an up-to-date information on the viruses and viroids infecting all types of cultivated and weed plants at global level; and is unique among plant virology texts as it is organized alphabetically by the genus name of the host plant infected. It allows the reader to readily determine all of the different viruses currently reported naturally infecting the plant genus and species. Information is provided for each virus and viroids on common synonyms, current taxonomic status, geographical distribution, symptoms induced, other known hosts, means of transmission and properties of both the virus particles and the genome. Where ever the same virus is known to infect multiple hosts, host-specific information, biological properties and genome characters are presented under each host affected. The index can be utilized to identify other crops infected by the same virus, showing which other crops might be at risk of infection in the event of introduction of a virus that has not previously reported in an area, or which might serve as potential virus reservoirs for infection of more sensitive or economically important crops than the host in which it is initially identified. The taxonomy and nomenclature of the viruses and viroids are followed based on the current guidelines of the 10th ICTV Report, covering up to 2018 and also about many new viruses and viroids that have been reported but not yet recognized as species by ICTV, have been included in this Encyclopedia. The uniqueness of this Encyclopedia is that all the known viruses and viroids affecting more than 1010 plant species at global level are described and the plant species are arranged in alphabetical order of the scientific name of the plant along the relevant information on 1518 viruses and viroids and is the ready-reckoner of the global plant species and their viruses and viroids for students, scientists, teachers of Plant Pathology& Virology; and also for the crop protection professionals, agricultural policymakers, seed companies and quarantine agencies.
Download or read book Plant Viruses and Virus Diseases written by Frederick Charles Bawden and published by . This book was released on 1964 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symptomatology: changes in the appearance of plants. Symptomatology: changes within infected plants. Symptomatology: effects on host-plant metabolism. Methods of transmission. Transmission by animals while feeding. Methods of assay. The composition of virus particles. The morphology of viruses. Types of inactivation. Virus multiplication. Movement within host plants. Genetic variability. Classification. The control of virus diseaes.
Download or read book Plant Diseases Of Viral Viroid Mycoplasma And Uncertain Etiology written by Karl Maramorosch and published by CRC Press. This book was released on 2019-09-11 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The adverse impact of plant diseases is felt around the world. In this book, the contributors analyze the nature and origins of pathogens that affect some economically important food and fiber crops.
Download or read book Virus and Plant Diseases written by S.R. Mishra and published by Discovery Publishing House. This book was released on 2004 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book Virus and Plant Diseases provides thorough information about virus and vital plant diseases. It covers origin, evolution, phylogeny, history, occurrence, nature, structure, symmetry, reproduction and classification of virus. Major groups of plant pathogenic viruses and plant diseases are also discussed. The book illustrates the information explicit through 41 figures and 21 tables. At the end of the book several references are given for further study. The scope of virology is expanding so rapidly that it is impossible to present all of it in a book which a student new to the field can cover in a single course. We have, therefore, tried to present selected portions of virology in sufficient detail that the student can understand them through reading the book. The primary aim of the text book is to present a succinet account of the essential features of the virus in a form suitable for students. Efforts have been made to include only sound fundamental material to give the begineer a solid foundation for more advanced work on the subject. Emphasis is placed on thee use of chemistry for a clearer understanding of the composition of virusus and the reactions they produce. The book uses up-to-date examples to show how precise hypotheses may be formulated and tested experimentally. Special efforts have been made to explain ideas in non-mathematical terms. The primary aim throughout has been clarity, simplicity and the high standard. The book will definitely prove to be a boon to teachers, students and research workers in the related field. Contents: Introduction, Structure of Virus, Classification of Virus, Plant Viruses, Plant Viral Diseases.
Download or read book Handbook of Plant Virus Diseases written by Dragoljub D. Sutic and published by CRC Press. This book was released on 1999-06-15 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Plant Virus Diseases presents basic information about viral-caused and viral-like diseases in many cultivated crops. The editors, internationally known plant pathologists, provide authoritative descriptive symptomatic signatures of virus diseases, to aid in the diagnosis and possible control of viruses. This handbook organizes cultivated plants into groups according to their final destinations and uses after harvest-a useful grouping system that indicates that some diseases, their resultant epidemiology, and control measures are characteristic within different groups.
Download or read book Fundamentals of Viroid Biology written by Charith Raj Adkar-Purushothama and published by Elsevier. This book was released on 2023-11-16 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of Viroid Biology provides a comprehensive introduction to emerging research on viroids and their biology. The book is organized into three parts, with sections that discuss historical perspectives as well as information on classifications, structure, life cycle and replication and viroid movement. The book goes on to discuss viroid diseases and their geographic distributions across Asia, Europe, Africa, Australia, North and South America. Viroid pathogenesis and viroid-host interaction rounds out the coverage which includes viroid associated disease symptoms and viroid regions associated and viroid-host protein and translations. Detection and disease control strategies are also covered. Contributed by an international group of renown contributors in viroid research, this book is a useful introductory reference to advanced undergraduates and graduate and postgraduate students. It is also ideal for early career researchers and scientists engaged in the study of viroid biology, virology, plant virology and microbiology. Covers introductory to advanced level of information in viroid research Supported by relevant flow chart, figures and graphics to enhance understanding of the concepts and protocols Offers contributions by an international array of experts who are authorities in viroid research
Download or read book Virus Diseases of Ornamental Plants written by S. K. Raj and published by Springer Nature. This book was released on 2021-11-13 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book elucidates the evolution of plant virus, genomic structure, diversity, plant-virus interaction, subcellular movement etc. The book reviews the biological machineries which allow the emergence of virus populations adapted by plant. The main objective of this book is the demonstration of a clear synergistic effect of plant viruses, an effect that was unexpectedly as important as applied alone. Ornamental plants are very popular and economically important worldwide. The international market of ornamentals is constantly expanding. Viruses and viroids can significantly reduce both decorative value and quality of propagated material of ornamentals. Due to the wide range of ornamental plant species and cultivars and their wide geographical distribution, the diversity of viruses that infect them is also high. The new emerging viruses are the causal agent for the economic loss of many important ornamental plants. Therefore, this book also adds value to current knowledge of virus stress response in ornamental plants and will provide the groundwork necessary for building future strategies for product enhancement. This book is of interest to teachers, researchers, capacity builders and policymakers. It can serve as additional reading material for undergraduate and graduate students of virology, agriculture and plant sciences.
Download or read book Plant Virus and Viroid Diseases in the Tropics written by K. Subramanya Sastry and published by Springer Science & Business Media. This book was released on 2013-06-26 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant virus and sub-viral pathogens pose severe constraints to the production of wide range of economically important crops worldwide. The crops raised both through true seed and vegetative propagated materials are affected with number of virus and virus-like diseases. The virus may enter into plants through seed planting materials or by vectors. Once the virus is in the field, it multiplies and spreads following definite patterns depending upon the nature of the vector and agro-meteorological conditions. Disease free crops and plants are great economic and social importance in feeding the world's population. Detection of virus and sub-viral agents at initial stages of infection is critical to reduce economic losses. For nearly two decades, ELISA and its variants played a major role in large scale virus testing and also in the production of virus-free planting materials.
Download or read book Plant Virus and Viroid Diseases in the Tropics written by K. Subramanya Sastry and published by . This book was released on 2014-01-31 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Viroids written by Ahmed Hadidi and published by CSIRO PUBLISHING. This book was released on 2003-01-08 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume presents indispensable and up-to-date information on viroids and viroid diseases. It provides a single source of information on the properties of viroids, the economic impact of viroid diseases, and methods for their detection and control. It examines the diseases associated with different plant species, the geographic distribution and epidemiology of viroids, diseases of possible viroid etiology, and the future applications of viroids. Viroids examines the biology of viroids, molecular characteristics, localization and movement, replication, pathogenesis, viroids and gene silencing, classification, viroid-like satellite RNAs, detection of viroids using bioamplification hosts, biological indexing, polyacrylamide gel electrophoresis, molecular hybridisation and polymerase chain reaction. The book looks at the geographical distribution and epidemiology of viroids in North America, Australasia, China, Japan, Europe, the Middle East, Africa, South America, and at the global level. It covers the control of viroids including quarantine of imported germplasm, availability of viroid-tested propagation materials, thermotherapy, tissue culture, and other conventional strategies as well as biotechnological control approaches. Special topics such as ribozyme reaction of viroids and economic advantages of viroid infection are also included. Other chapters summarise the current state of knowledge concerning viroid diseases of the crop in question and aspects of the natural history of viroids in horticulture. Among the crops covered are potato, tomato, tobacco, cucumber, pome fruits, stone fruits, avocado, citrus, grapevines, hop, chrysanthemum, coleus, columnea, and coconut palm. The four eminent editors of this watershed volume have assembled an international group of more than 70 scientists who have substantial experience with viroids and viroid diseases. They have produced a cohesive and comprehensive work that can be used by students, researchers, extension agents, and regulators. It may also be of a great value to science managers, policy makers, and industries in formulating policies and products to obtain viroid-free plants and control viroid diseases. The information on plant quarantine and certification programs will help anyone concerned with the safe movement of plant material across international boundaries or within a single country.
Download or read book Viroids written by A. Hadidi and published by CSIRO PUBLISHING. This book was released on 2003 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive volume presents indispensable and up-to-date information on viroids and viroid diseases. It provides a single source of information on the properties of viroids, the economic impact of viroid diseases, and methods for their detection and control.
Download or read book The Viroids written by T.O. Diener and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than seven years have passed since the first monograph on viroids was published. At that time, the existence of viroids as a novel type of pathogen far smaller than viruses had been amply demonstrated and some of their unusual molecular properties had been elucidated, but the entry of molecular biology into viroid research was still in its infancy. Since that time, our knowledge of the molecular properties of viroids has increased exponentially and viroids have become even more fasci nating than was the case seven years ago. Today, aside from transfer RNA, viroids are probably the best known type of RNA-at least from a struc tural standpoint. Much less is known of the mechanisms of viroid func tion, such as the exact pathway and enzymology of viroid replication and the biochemistry of viroid pathogenesis. Recently, however, emphasis in viroid research has shifted from structural to functional themes and im portant beginnings have been made in the elucidation of viroid struc ture-function relationships. With the discovery of viroidlike RNAs within the capsids of certain plant viruses and the finding of surprising structural similarities between viroids and plant satellite RNAs, the conceptual gap between viroids and conventional viruses has significantly narrowed. Even beyond virology, connecting links with cellular RNAs have come to light and the long isolation of viroids land "viroidologists"J has come to an end.
Download or read book Viroids and Satellites written by Ahmed Hadidi and published by Academic Press. This book was released on 2017-07-18 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viroids and Satellites describes plant diseases and their causal agents while also addressing the economic impact of these diseases. The book discusses various strategies for state-of-the-art methods for the detection and control of pathogens in their infected hosts and provides pivotal information from the discovery of viroids through the analysis of their molecular and biological properties, to viroid pathogenesis, host interactions, and RNA silencing pathways. Students, researchers and regulators will find this to be a comprehensive resource on the topics presented. Provides coverage of the basic biological properties of disease, along with applied knowledge Features economic impacts, transmission, geographical distribution, epidemiology, detection, and control within each chapter Organizes viroid diseases by viroid taxonomy and viroid species
Download or read book A Textbook of Plant Virus Diseases written by Kenneth M. Smith and published by Elsevier. This book was released on 2012-12-02 with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Textbook of Plant Virus Diseases deals with a discussion of different plant viruses, their properties, and the corresponding diseases these viruses cause. It includes a list of host plants of every virus arranged alphabetically. The book discusses the new types of disease vectors, such as root-infesting fungi, nematode worms, mites, and insects that are both biting and sucking. It also discusses the development of new techniques in electron microscopy that is used to characterize in detail the causal viruses of a number of plant virus diseases. Furthermore, it presents the development of plant virus serology, as well as the improved methods of virus isolation that allow the classification of viruses into related groups. The book includes a Bibliography and an Index of Synonyms that can be used in identifying given virus name. In addition, cross-references are included for searching a particular virus under the alternative names. This book will be invaluable to ecologists, environmentalists, agriculturalists, and other scientists interested in plant viruses. Biology students will also find this reference helpful.
Download or read book Subviral Pathogens of Plants and Animals Viroids and Prions written by Karl Maramorosch and published by Elsevier. This book was released on 2012-12-02 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: Subviral Pathogens of Plants and Animals: Viroids and Prions is organized into four parts consisting of a total of 20 chapters that discuss the nature of subviral pathogens of plants and animal. This book first elucidates the recognition of subviral pathogens, and then explores the host range of viroids and its diseases. It also addresses the control of viroid diseases. The book explains the structure and replication of viroids. Lastly, it centers on the structure and biology of prions, as well as the diseases these pathogens cause. This treatise will be of considerable scientific interest and importance to those in the field of human and veterinary medicine, virology, zoology, microbiology, plant pathology, entomology, as well as other branches of biology.
