Citrus Tristeza Virus: Prevalence and Diversity of Its Isolates
Citrus Tristeza Virus: Prevalence and Diversity of Its Isolates

Author: Anurag Kashyap

Publisher: LAP Lambert Academic Publishing

Published: 2015-09-03

Total Pages: 92

ISBN-13: 9783659776731

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Citrus is one of the most widely grown and economically important fruit crops in the world.Citrus tristeza virus (CTV), a phloem associated virus of various citrus species, containing single stranded positive-sense monopartite RNA genome, is one of the biggest threats to the global citrus industry and a major contributor of citrus decline.Survey was conducted to ascertain the prevalence of CTV as well as existence of genetic variability among its isolates in the North Eastern region of India. CTV was found to be widely prevalent in North Eastern region of India. Detection of CTV using DAS-ELISA and RT-PCR was found to very accurate and efficient which could be important tools in certification of CTV-free planting materials. Genetic variability among the CTV isolates of the region was observed and genetic characterization studies of CTV isolates of region along with their phylogenetic relationship with other Indian and international CTV isolates revealed vital facts about the genetic make up of the CTV isolates of the region.

Molecular Characterization of the Population Diversity of Selected Isolates and Subisolates of Citrus Tristeza Virus (CTV) from Florida
Molecular Characterization of the Population Diversity of Selected Isolates and Subisolates of Citrus Tristeza Virus (CTV) from Florida

Author: Amandeep Singh Kahlon

Publisher:

Published: 2005

Total Pages:

ISBN-13:

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The HMA method provided evidence that the population dynamics may change with the graft-transmission from the source isolate. Certain genotypes were detected only after the aphid transmissions, and these genotypes could not be detected from the source isolate or the graft-transmitted subisolates.

Viroids and Satellites
Viroids and Satellites

Author: Ahmed Hadidi

Publisher: Academic Press

Published: 2017-07-18

Total Pages: 754

ISBN-13: 0128017023

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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

Aphids as Virus Vectors
Aphids as Virus Vectors

Author: Kerry F. Harris

Publisher: Elsevier

Published: 2014-05-10

Total Pages: 576

ISBN-13: 1483273881

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Aphids as Virus Vectors focuses on aphids as vectors of plant viruses and the fundamentals of their relationship with virus and host. The mouthparts and feeding mechanism of aphids are discussed, along with aphid penetration of plant tissues and the transmission mechanisms of aphids as virus vectors. The intrinsic properties and taxonomy of aphid-borne viruses are also examined. Comprised of 22 chapters, this book begins with an overview of the importance of aphids as vectors, their biology, and the properties of the viruses they transmit. These introductory chapters prepare the reader for later ones on aphid-virus-plant interactions. The next section deals with transmission mechanisms, with emphasis on several novel alternatives to many of the traditionally held concepts of how aphids transmit viruses. Accessory factors in non-persistent virus transmission are considered. Subsequent chapters focus on technological advances in aphid-virus research, including the use of aphid cell culturing, radioisotope methodology, membrane feeding, and electrical measurement systems. The most promising frontiers in epidemiological and control-oriented research are discussed in the last two sections. This monograph will be a useful resource for researchers from such varied sciences as entomology, plant science, and virology, as well as for graduate students taking entomology and plant pathology courses on insects in relation to plant diseases.

Virus Diseases and Crop Biosecurity
Virus Diseases and Crop Biosecurity

Author: Ian Cooper

Publisher: Springer Science & Business Media

Published: 2007-05-08

Total Pages: 158

ISBN-13: 1402052987

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Without sensationalizing or providing technical details that would result in a terrorist's handbook, this volume reflects concerns expressed by experts from 12 states. The book is exceptional because of its focus on indirect impacts on human health and welfare through challenge to the security of food. These urgently need to be recognised and steps taken to counter the threat. The need for protection is weighed against risks of discouraging biotechnological advance.

A Century of Plant Virology in India
A Century of Plant Virology in India

Author: Bikash Mandal

Publisher: Springer

Published: 2017-11-28

Total Pages: 800

ISBN-13: 9811056722

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The book is a compilation of research work carried out on plant viruses during past 100 years in India. Plant viruses are important constraints in Indian agriculture. Tropical and sub-tropical environments and intensive crop cultivation practices ideally favours perpetuation of numerous plant viruses and their vectors in India, which often cause wide spread crop losses. Of all the plant pathogens, studies of plant viruses have received a special attention as they are difficult to manage. A large body of literature has been published on the plant virus research from India during past 100 years; however the information is so far not available in one place. This book provides comprehensive information on the biology, molecular biology, epidemics, crop losses, diagnosis and management of viruses and viroids occurring in India. Description of properties of the viruses are provided in the chapters comprising of different genera such as Allexivirus, Begomovirus, Babuvirus, Badnavirus, Carlavirus, Carmovirus, Cucumovirus, Closterovirus, Ilavirus, Mandrivirus, Potyvirus, Tospovirus, Tungrovirus and Sobemovirus. Virus-vector research related to aphid, thrips and whitefly is discussed. The work on the management aspects of plant viral diseases has been described with reference to the conventional, antiviral and transgenic approaches. Further, the quarantine mechanism developed in India for the exclusion of viruses and vectors has also been included. The book also provides useful information about the capacity building on the research and education on Plant Virology in India. Overall, the book covers a wide range of accounts of research findings and innovations in Plant Virology in India during past 100 years. The book will be a resourceful reference to the students, scientists, agricultural professionals and policy makers.