The Orthotospoviruses (or Tospoviruses) are a genus of negative RNA virus found within the family Tospoviridae of the order Bunyavirales.The genus takes its name from the discovery of tomato spotted wilt orthotospovirus (TSWV) in Australia in 1919. It remained the only member of the family until the early 1990s when genetic characterisation of viruses discovered in plants became more common.
Virus classification is the process of naming viruses and placing them into a taxonomic system. Similar to the classification systems used for cellular organisms, virus classification is the subject of ongoing debate and proposals. (by whom?) This is mainly due to the pseudo-living nature of viruses, which is to say they are non-living particles with some chemical characteristics similar to.
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.Tospoviruses (Family Bunyaviridae, Genus Tospovirus)1 Scott Adkins, Tom Zitter and Tim Momol2 1. This document is Fact Sheet PP-212, one of a series of the Plant Pathology Department, Florida Cooperative Extension Services, Institute of Food and Agricultural Sciences, University of Florida. Published October 2005. Revised January 2013.Viral Evolution, Morphology, and Classification. Discovery and Detection of Viruses. Viruses are infectious particles about 100 times smaller than bacteria and can only be observed by electron microscopy. Learning Objectives. Describe how viruses were first discovered and how they are detected.
Please use one of the following formats to cite this article in your essay, paper or report: APA. Mandal, Ananya. (2019, June 05). Virus Classification. News-Medical. Retrieved on June 18, 2020.Read More
Structure and Classification of Viruses.. The chemical composition of a virion varies from virus to virus and is an important distinguishing character used in classification of viruses.Read More
Other articles where Tospovirus is discussed: bunyavirus: Nairovirus, Tospovirus, and Hantavirus. Most of these viruses are transmitted by arthropods (e.g., ticks, mosquitoes, and sand flies) and cause serious human disease, including certain types of viral hemorrhagic fever.Read More
Virus classification is the way viruses are put into groups by scientists. There are many different kinds of viruses. Scientists classify viruses to make it easier to learn about them. Classification also helps scientists to remember viruses and the diseases they cause.Read More
Essay on Classification of Viruses: A universal classification of all viruses, growing in animal, plant, bacteria, fungi etc. as host organisms, is a difficult task. An International Committee on Taxonomy of Viruses has endeavored to work out a classification and nomenclature.Read More
Tospoviruses are transmitted from plant to plant by several species of thrips. As with many insect-transmitted viruses, the thrips-tospovirus relationship is very specific. Only a few of the many known thrips species are able to acquire and transmit tospoviruses. Thrips can only transmit TSWV if it is acquired during the larval stage.Read More
Tospovirus Encodes an RNA Silencing Suppressor to Counteract Host RNAi Antiviral Defense Using a GFP-based transient silencing suppression assay, the NSs protein of TSWV and other tospoviruses such as Impatiens necrotic spot virus (INSV), Groundnut ringspot virus (GRSV), and Tomato yellow ring virus (TYRV) has been identified as the RSS ( 14, 54, 113, 124 ).Read More
Viruses are infectious units with diameters of about 16 nm (circoviruses) to over 300 nm (poxviruses; Table 2.1). Their small size makes them ultrafilterable, i.e. they are not retained by bacteria-proof filters. Viruses have evolved over millions of years, and have adapted to specific organisms or their cells.Read More
A Tospovirus species was isolated from peanut plants showing chlorotic ring spots and chlorosis, and identified as Tomato yellow fruit ring virus (TYFRV) on the basis of its biological.Read More