Perspectives on progress in plant virology pdf 21p this note describes the following topics. Transmission of plant viruses by aphids involves multitrophic interactions among host plants, aphid vectors, and. We provide you a fantastic collection of free powerpoint templates design that you can download for free and regulate for your personal presentations. Ppt themes 2020 best free powerpoint templates download. Generally, an ebook can be downloaded in five minutes or less. An ebook reader can be a software application for use on a computer such as microsofts free reader application, or a booksized computer this is used solely as a reading device such as. Backgrounds catering to themes, such as heart monitor, heart rhythm, and dna structure are available among others. The main reason that we study plant viruses is the negative impact that viral diseases. Discovering and getting the most related and suitable powerpoint. Control of plant viruses keep out of an area through quarantine, inspection, and certification programs that would prevent or limit local or international virus movement and warranty. W elcome to free powerpoint templates design, one of the most usefull powerpoint templates resource website. A virus is an infectious agent made up of nucleic acid dna or rna wrapped in a protein coat called a capsid.
Explain the inner working of your body with the help of free biology powerpoint backgrounds. Hwang jee na dominant resistance introduction resistance mechanisms to plant viruses dominant. For example, under this category you can find free powerpoint. Ppt plant virology powerpoint presentation free to. The virus is retained by the aphid for a period of minutes to hours, and is not retained after a molt. Plant virus transmission from the insect point of view pnas. Ppt virus resistance mechanisms in plants powerpoint. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Proteins, nucleic acids, serology, replication of plant viruses in vectors, insect tissue cultures as a tool for. Ppt genome organization powerpoint presentation free. Although plant viruses are not as well understood as their animal counterparts, one plant virus has become iconic. Free virology books download ebooks online textbooks. One of the constraints to plant virology was the lack of a quantitative assay, until holmes in. All plant viruses used in the laboratory experiments are common viruses found in louisiana crops. Hughesb adepartment of plant pathology, the university of georgia, athens, ga. This study was performed for comparison of meristem culture technique with shoot tip culture technique for obtaining virusfree plant, comparison of micropropagation success of two different nutrient media. Viruses and vectors used will depend upon their availability. The symptoms that a plant shows are determined by which viruses are present, the relative proportions of each, the order in which they infected the plant, the plants natural resistance to the strains of the. The highest level of virus classification recognises six major groups, based on the nature of the genome.
Use of tissue culture techniques for producing virusfree. Download plant viruses institute of food and agricultural. All content in this area was uploaded by bikram saha. Plant viruses are transmitted from host to host through budwood, seeds or tubers, or by arthropods, nematodes, fungi, or plasmodiophorid vectors. Since plants are not generally mobile, their viruses must be transmitted by vectors. A virus is an infectious agent made up of nucleic acid dna or rna wrapped in a. Control of plant viruses is of great economic importance worldwide, because these viruses cause diseases that destroy commercial crops. Ppt virus resistance mechanisms in plants powerpoint presentation free to download. Adams ip, miano dw, kinyua zm, wangai a, kimani e, phiri n, reeder r, harju v, glover r, hany u, souzarichards r, deb nath p, nixon t, fox a, barnes a, smith j, skelton a, thwaites r, mumford r. While most of the wellstudied viruses in crop plants are acute i. Transmission is an important step in the biological cycle. Preventative measures may include use of certified virusfree seed or. We provide you a fantastic collection of free powerpoint templates design that you can download.
Although much is known about the proteins and processes within the plant cell required for efficient virus transmission, up to now, little was known about the requirements and mechanisms from the insect point of view. Plant virology plhl 7040 louisiana state university. This attained wide application of plant tissue culture to raise virus free plants in agriculture. Create or view powerpoint presentations with this uptodate version of the popular software package. Viruses do not capture or store free energy and are not functionally active. The simplest viruses are composed of a small piece of nucleic acid surrounded by. Free download fileplanet microsoft powerpoint 2016. The importance of viruses in initiating plant diseases is now an accepted fact. Ppt themes is 2020 best free powerpoint templates download,ppt background,ppt material,ppt chart,ppt skills in the ppt themes website. Ppt plant viruses powerpoint presentation, free download id. These can include nonspecific mechanical vectors such as lawnmowers or pruning tools, or the teeth of grazing animals. Like all other viruses, plant viruses are obligate. Displaying powerpoint presentation on plant viruses institute of food and agricultural sciences available to view or download. Introduction to plant viruses descriptions of plant viruses.
The laboratory section emphasizes on techniques for virus disease diagnosis and virus identification. Ppt introduction to plant virusesundergraduate lecture by. Ppt plant virology powerpoint presentation free to download id. History 0f virus free plant culture morel and martin 1952 developed meristem culture technique and recovered dahlia shoots, free from viruses, by meristem tip culture. Plant virus are made up of a strand of nucleic acid dna or rna surrounded by a protein sheath. This page contains list of freely available ebooks, online textbooks and tutorials in virology. The uninfected upper leaves are symptomfree and do not contain virus. Associated tissue culture research during the past forty years or so has resulted in the successful production of virusfree. There are approximately 450 species of plantpathogenic viruses, which cause a range of diseases. Download free virus powerpoint templates and slide designs containing images of virus or representations of popular virus.
Management of plant viruses ppt viral diseases in plants. A free powerpoint ppt presentation displayed as a flash slide show on id. Remove all weeds since these may harbor both viruses and insects. Ppt virus structure powerpoint presentation free to. Check our section of free ebooks and guides on virology now.
Tobacco mosaic virus is typical, wellstudied example. Plant viruses transmitted in two different modes produce differing. Download powerpoint 2010 free full version, arcgis free download full version, buy online mathworks matlab r2017a, adobe creative suite 3 web premium special offers. The course covers viruses as causal agents of plant diseases.
Tobacco mosaic virus tmv is a positivesense single stranded rna virus in the genus tobamovirus that infects a wide range of plants, especially. Remove all crop debris from benches and the greenhouse structure. Plant viruses and viroids are diverse and unusual groups of plant pathogens that infect and cause disease in many crop plants these pathogens depend on the normal cellular machinery of. Ppt virus structure powerpoint presentation free to download. How viruses multiply hidden viruses virus attaches to the host cell virus injects genetic material into host cell s viral genetic material becomes part of host cell s genetic material new viral protein and. Sathya msc microbiology20172019 tirupur kumaran college for women, tirupur tamil nadu. Infected plants may show a range of symptoms depending on the disease but often. Doesnt belong to any kingdomits not a plant or an animal. Plant viruses institute of food and agricultural sciences.
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