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Plants, fungi, and viruses were among the first biological objects studied with an electron microscope. One of the two first instruments built by Siemens was used by Helmut Ruska, a brother of Ernst Ruska, the pioneer in constructing electron microscopes. H. Ruska published numerous papers on different biological objects in 1939. In one of these, the pictures by G. A. Kausche, E. Pfankuch, and H. Ruska of tobacco mosaic virus opened a new age in microscopy. The main problem was then as it still is today, to obtain an appropriate preparation of the specimen for observation in the electron microscope. Beam damage and specimen thickness were the first obstacles to be met. L. Marton in Brussels ...
Methods in Virology, Volume VII focuses on the methods used in virology, including radioimmunoassays, microscopy, hybridization, and mutagenesis. The selection first elaborates on monoclonal antibody techniques applied to viruses; competition radioimmunoassays for characterization of antibody reactions to viral antigens; and enzyme immunosorbent assays in plant virology. Discussions focus on the principles of enzyme immunosorbent assay, choice of enzyme and preparation of conjugate, determination of immunoglobulin class, and maintenance and specificity testing of hybridomas. The text then elaborates on electron microscopy for the identification of plant viruses in in vitro preparations and c...
It is now just 20 years since Gomatos and his co-workers at the Rocke feller University showed that the nucleic acid in reovirus particles is double-stranded RNA (dsRNA). This discovery created great excitement, for dsRNA was at that time under intense investigation as the replicative form of viral genomes consisting of single-stranded RNA. An equally interesting and important finding followed soon after: it was found that the reovirus genome consists, not of a single nucleic acid molecule, but of 10 discrete "segments," each with its specific sequence content and each transcribed into its own messenger RNA. It is clear now that these segments are genes. Not surprisingly, the availability of...
This work provides information on the detection, identification, and differentiation of all microbial plant pathogens - presenting modern protocols for rapid diagnosis of diseases based on biological, physical, chemical and molecular properties. It contains methods for the selection of disease-free seeds and vegetatively propagated planting materia
Serology and Immunochemistry of Plant Viruses investigates the antigenic properties of plant viruses. It looks at the practical aspects of plant virus serology, along with the molecular basis of viral antigenicity, antigenic determinants in proteins, the structure of antibodies, virus purification, antiserum production, and the theoretical principles and practical implementation of the various serological techniques. It also considers the problems associated with identification and classification of plant viruses. Organized into 10 chapters, this volume begins with an overview of antigens and antigenic determinants before proceeding with a discussion of the immunochemistry of plant viruses, ...
Handbook of Plant Virus Diseases presents basic information about viral-caused and viral-like diseases in many cultivated crops. It provides authoritative descriptive symptomatic signatures of virus diseases to aid in the diagnosis and possible control of viruses. It 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. It summarizes current knowledge about various virus-induced diseases in many economically important cultivated crops and addresses the need for an improved acronym system by presenting a new system that provides
It has been ten years since the publication of the third edition of this seminal text on plant virology, during which there has been an explosion of conceptual and factual advances. The fourth edition updates and revises many details of the previous editon, while retaining the important older results that constitute the field's conceptual foundation.Key features of the fourth edition include:* Thumbnail sketches of each genera and family groups* Genome maps of all genera for which they are known* Genetic engineered resistance strategies for virus disease control* Latest understanding of virus interactions with plants, including gene silencing* Interactions between viruses and insect, fungal, and nematode vectors* New plate section containing over 50 full-color illustrations