Lectures in plant virology, study notes for virology. Virology is the study of viral submicroscopic, parasitic particles of genetic material contained in a protein coat and viruslike agents. Backgrounddiscovery the concept behind modern virology can be traced back to adolf mayer, dimitri ivanofsky and martinus beijerinck who, independently in the late 1880s, discovered what was later to be called tobacco mosaic virus tmv. This chapter describes the history of plant virology noting that in several instances it has led the whole of virology in revealing various concepts. In most cases, the laboratory notesreport should have the following information. Virus classification, sars, coronavirus, paramyxovirus, measles, influenza virus, rotavirus, parvovirus, cutaneous wart, herpes simplex virus keratitis, cytomegalovirus retinitis and smallpox. A summary of lecture and lab topics will be provided. Also this section publishes studies involving useful methodological application such as diagnostic. All the virology on the www collection of links, pictures, lecture notes. Plant viruses do not enter plant host cells through active.
Contains either dna or rna surrounded by a protein coat d. Introduction to mycology the term mycology is derived from greek word mykes meaning mushroom. Overall, plant viruses have relatively small genomes and are streamlined in structure. The purpose of this lesson is to provide a general overview of laboratory techniques used in the. Plant viruses do not enter plant host cells through active mechanisms 3. Chapter 6 virology topics structure classification multiplication cultivation and replication nonviral infectious agent teratogeniconcogenic viruses have a host range. Classification of virus virology online microbiology notes. Chens lecture hormone receptor interaction transcription viruses, aids hormones protein engineering virology virology practicum new and controversial issues dr. General properties of viruses replicate independently of the chromosome of cells, but dependent on cells infect animals and people, plants, and bacteria bacteriophage extracellular forms virions are metabolically inert contain either dna or rna range in size from about 28 nm to. Central nervous system viruses, gastrointestinal tract viruses, immune system versus viruses, respiratory viruses, viralmichigan state university. Plant virology plhl 7040 louisiana state university. In addition to the differences in morphology and genetics mentioned above, the baltimore classification scheme groups viruses according to how the mrna is produced during the replicative cycle of the virus. Fenner and whites medical virology, fifth edition provides an integrated view of related sciences, from cell biology, to medical epidemiology and human social behavior. If you are going to prepare a seminar you can compare with multiple similar presentations given here, some times if you are busy you can use these slides as such without any modification or with slight modification.
To replicate themselves, viruses usurp functions of the host cells on which they are parasites. The perspective represented by this book, that of medical virology as an infectious disease science, is meant to. This columbia university virology course is offered each year in the spring semester. Jan 15, 2020 the most commonly used system of virus classification was developed by nobel prizewinning biologist david baltimore in the early 1970s. The plant viruses section of virology journal covers studies on all aspects of plant viruses including viral structure, gene function, genetics, virushost interactions, viral pathogenesis, epidemiology, host resistance, rna silencing and so on. Many of the links on this site are broken and it does not appear to be being maintained. But please do not remove any book from the laboratory. Lecture slides pdf will be posted at this website before each class. It then discusses how plant viruses differ from other diseasecausing agents leading on to the definition of a virusit concludes by giving a brief description of the layout of the book. This chapter discusses broad aspects of virology and highlights how plant viruses have led the subject of virology in many aspects.
Virology techniques introduction virology is a field within microbiology that encompasses the study of viruses and the diseases they cause. There is an intrinsic simplicity of nature and the ultimate contribution of science resides in the discovery of unifying and simplifying generalizations, rather than in the description of isolated situations in the visualization of simple, overall patterns rather than in the analysis of patchworks. Virology virology practicum cancer protein engineering previous lectures diabetes dr. This lecture covers viral infection pathways, the structure of viruses, how viruses. Virology is the study of viruses, complexes of nucleic acids and proteins that have the capacity for replication in animal, plant and bacterial cells. Nov 25, 2018 introduction to virology pdf the study of viruses, or virology as it is now called, had its origin in 1892 when a russian botanist, iwanawsky, showed that sap from a tobacco plant with an infectious disease was still highly infectious after passage through a filter capable of retaining bacterial cells. Matthews, has written this coursebook based on his classic and comprehensive plant virology, third edition.
Cause several plant diseases but are not implicated in human diseases prions are infectious particles that are composed solely of protein and no detectable nucleic acid are cause of certain. The viral parasite causes changes in the cell, particularly its antigenicity. This book covers the topics of the course and much more. One of the constraints to plant virology was the lack of a quantitative assay, until holmes in 1929 showed that local lesions produced in. In the laboratory, viruses have served as useful tools to better understand cellular mechanisms. Viruses are submicroscopic, obligate intracellular parasites that are more diverse than all the bacterial, plant, and animal kingdoms combined.
What cell will not give as a source, that must be produced in place. He is an emeritus fellow at the john innes centre where he continued research on banana streak virus for five or more years after retirement. Introduction to virology division of medical virology. In fact, when viewed overall, there is evidence of much crossfeeding between the various branches of virology. That is, viruses infect specific cells or tissues of specific hosts, or specific bacteria, or specific plants.
Structure, life cycle, and examples of all types of viruses classified by their genomes. Kopchicks lectures powerpoint slides from previous years cancer stem cells. In this first lecture of my 2016 columbia university virology course, we explore the definitiions of viruses, their discovery and properties, and my goals for this course. Pdf mby 2624 virology lecture notes maanda tshikalange. Principles of molecular virology, fifth edition, provides an introduction to modern virology. This book and other plant virology books will be available in the laboratory a455.
Two semesters of a rigorous, molecularlyoriented introductory biology course such as c2005, or the instructors permission. Introduction to virology pdf 31p this note covers the following topics. Starting with the earliest research, which gave a clue as to the existence of a pathogen different from the then known bacteria and fungi, the subsequent topics in plant virus research are highlighted, including the spread of plant viruses in nature and. Infectious agents of both prokaryotes and eukaryotes b. Plant pathology notes, questions, answers and more.
Mic 162 general virology lecture 2, 1719 replication cycle of a virus 1. This course consists of four credit hours 2 hr lecture and 4 hr laboratory per. Viruses that infect plants uf entomology and nematology. General properties of viruses replicate independently of the chromosome of cells, but dependent on cells infect animals and people, plants, and bacteria bacteriophage extracellular forms virions are metabolically inert contain either dna or rna range in size from about 28 nm to about 200 nm in diameter. The journal welcomes submitted articles on virus replication, virushost biology, viral pathogenesis. We experience countless infections throughout their lives, with particularly high frequency in early childhood.
This book and other plant virology books will be available in the laboratory. Microbiology mcq on virology viruses easybiologyclass. Welcome to microbiology mcq 10 this question set on microbiology mcq10 viruses virology consists of 15 questions in mcq format. Please select the correct answer and at the end of the test, you have to click on submit button to see your score and the correct answers. Viruses contribute significantly to the global burden of infectious disease. Landmarks in virology introduction of concept of filterable agents for plant pathogens mayer, ivanofsky, beijerinck in late 1880s first filterable agent from animals described foot and mouth disease virus loeffler and. Introduction to virology viruses contribute significantly to the global burden of infectious disease. Chapter 2 nomenclature and classification of plant viruses i. Videocasts of all lectures slides plus audio will be posted. Free virology books download ebooks online textbooks. Students should listen to the weekly podcast this week in virology, produced by prof.
Landmarks in virology introduction of concept of filterable agents for plant pathogens mayer, ivanofsky, beijerinck in late 1880s first filterable agent from animals described foot and mouth disease virus loeffler and frosch in 1898 first human filterable agent. However, there were differences mainly due to the interactions that these viruses have with their. Free virology books download ebooks online textbooks tutorials. Historical harmful agents were called viruses latin virus, poison or venom in the nineteenth century louis pasteur used the term virus to describe any living disease causing agent in 1892,dimitri ivanowski gave the first clear evidence of viruses.
Bsci 124 lecture notes undergraduate program in plant biology, university of maryland lecture 17 algae. Notes and presentation over the nature of viruses intended for biology students. The ability of fungi to invade plant and animal tissue was observed in early 19th century but the first documented animal infection by any fungus was made by bassi, who in 1835 studied the muscardine disease of silkworm and. Racaniello, for additional material about viruses relevant to the course. Rebecca thombredept of biotechnologymodern college,shivajinagar,pune5 2. In this lecture we discuss the discovery of reverse transcriptase, the mechanism of reverse.
Viralcaused diseases in humans, plants and animals continue to be the major motivator for the study of viruses, and today. Perspectives on progress in plant virology pdf 21p this note describes the following topics. Microbiologyvirologyimmunologybacteriologyparasitology. Virology lecture notes virology mature as a field with the discovery of new agents and diseases and the parallel determination of the importance of viruses in our understanding of molecular biology and cancer. To replicate themselves, viruses use up functions of the host cells on which they are parasites. Lect 1 introduction to medical virology linkedin slideshare. Classification of virus on the basis of genetic material present, presence of a number of strands, presence of envelope, capsid structure, shapes of the viruses, types of host, mode of transmission, replication properties, site of replication and baltimore classification. Virology publishes papers that provide advances to the understanding of virus biology. The basic thesis of the course is that all viruses adopt a common strategy. Oct 26, 2016 lect 1 introduction to medical virology 1.
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