IndexIntroductionClassification of plant virusesLiterature reviewConclusionsIntroductionPlant viruses are viruses that act on plants. Plant viruses are obligate intracellular parasites. Plant viruses are pathogens for higher plants. Viruses also cause many important plant diseases and are responsible for enormous losses in crop production and quality in all parts of the world. Infected plants may show a range of symptoms depending on the disease, but often there is foliar yellowing of the entire leaf or with a striped or blotchy pattern, leaf distortion, e.g. curling, and other growth distortions, e.g. arrest of growth of the entire plant, anomalies in flowering. or fruit formation. Plant viruses are classified into groups based on the nature of the genome: six main groups. Plant viruses are transmitted to other plants with the help of the cell wall, and viruses cannot penetrate it. Most plant viruses are therefore transmitted by a vector organism that feeds on the plant or in some diseases they are introduced through wounds caused, for example, during cultural operations such as pruning. A small number of viruses can be transmitted through pollen to seed. Plant viruses are important pathogens. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay The study of plant viruses has made important contributions to the understanding of viruses in general, for example, the recognition of viruses as pathogens, the structure of viral particles, and the infectious nature of RNA. Viruses can be controlled with the help of several methods. With the help of chemical and biological methods. We control plant viruses using virus-free plant material.Classification of plant virusesClassification of plant viruses divided into groups. Plant viruses are classified into single and double carriers which can be bipositive and negative. Plant viruses have plylum, class, order, family, ganus and species. Examples of plant virusesTobacco mosaic virus, Tomato wilt spot virus, Tomato yellow leaf curl virus, Cucumber mosaic virus, Potato virus, Cauliflower mosaic virus, African cassava mosaic virus, plum pox virus, bromine mosaic virus and potato virus. The genus takes its name from the discovery of tomato spotted wilt virus (TSWV) in Australia in 1919. It remained the sole member of the family until the early 1990s, when genetic characterization of viruses discovered in plants became more common. There are currently at least twenty viral species in the family, and others are recorded and described on a relatively regular basis. Together, these viruses have been documented to infect over eight hundred different plant species from 82 different families. Cucumber mosaic virus is a plant pathogenic virus of the Bromoviridae family. It is the type member of the plant virus genus, Cucumovirus. This virus has a worldwide distribution and a very broad host range. In fact, it has a reputation for having the widest host range of any known plant virus. It can be transmitted from plant to plant both mechanically through the sap and through aphids via the stylet. It can also be transmitted through seeds and weeds. African cassava mosaic virus and South African cassava mosaic virus are distinct species of circular single-stranded DNA viruses that are transmitted by whitefly and primarily infect cassava plants. These were.