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Tombusviridae is a family of single-stranded positive sense RNA plant viruses. There are three subfamilies, 17 genera, and 95 species in this family. The name is derived from Tomato bushy stunt virus (TBSV).
The International Committee on Taxonomy of Viruses (ICTV) authorizes and organizes the taxonomic classification of and the nomenclatures for viruses. The ICTV has developed a universal taxonomic scheme for viruses, and thus has the means to appropriately describe, name, and classify every virus that affects living organisms. The members of the International Committee on Taxonomy of Viruses are considered expert virologists. The ICTV was formed from and is governed by the Virology Division of the International Union of Microbiological Societies. Detailed work, such as delimiting the boundaries of species within a family, typically is performed by study groups of experts in the families.
Crinivirus, formerly the lettuce infectious yellows virus group, is a genus of viruses, in the family Closteroviridae. They are linear, single-stranded positive sense RNA viruses. There are 14 species in this genus. Diseases associated with this genus include: yellowing and necrosis, particularly affecting the phloem.
Pepper mild tigré virus (PepMTV) is a plant pathogenic virus of the family Geminiviridae. It was demoted from species status in 2002.
Pepper golden mosaic virus is a plant pathogenic virus of the family Geminiviridae. It affects Capsicum annuum and all tomatoes. It was first discovered in Texas in 1987, and was called Texas Pepper Virus, and a two years later in Mexico after it destroyed up to 100% of plants in afflicted fields in the autumn of 1989, mainly in north-west Mexico.
Strawberry mottle virus (SMV) is a pathogenic plant virus in Secoviridae, a family of plant-infecting picornaviruses. It is not yet assigned to a genus. Virions are isometric, approximately 28 nm in diameter, and contain two RNA strands equal to about 12,600 nucleotides in length. The polyprotein of RNA1 contains regions identified as helicase, protease, RNA-dependent RNA polymerase and a viral genome-linked protein while RNA2 shows similarities to the large coat protein domain of the Satsuma dwarf virus.
Benyvirus is a genus of viruses, in the family Benyviridae. Plant serve as natural hosts. There are four species in this genus. Diseases associated with this genus include: BNYVV: rhizomania.
Plasmaviridae is a family of bacteria-infecting viruses. Acholeplasma species serve as natural hosts. There is one genus in the family, Plasmavirus, which contains one species: Acholeplasma virus L2. All viruses known in this family have been isolated from species in the class Mollicutes.
Machlomovirus is a genus of plant viruses, in the family Tombusviridae. Plants serve as natural hosts. There is only one species in this genus: Maize chlorotic mottle virus (MCMV), which causes significant losses in maize production worldwide. MCMV was first identified in the U.S. state of Kansas causing Maize lethal necrosis disease/MLN/corn lethal necrosis, a severe disease that negatively affects all stages of development for maize plants.
Pecluvirus is a genus of viruses, in the family Virgaviridae. Cereal crops and graminaceous weeds serve as natural hosts. There are two species in this genus. Diseases associated with this genus include: (SBWMV): green and yellow mosaic. The name of the genus is derived from Peanut clump virus: Peanut clump virus, giving rise to Pecluvirus.
Pomovirus is a genus of viruses, in the family Virgaviridae. Plants and dicotyledons serve as natural hosts. There are five species in this genus. Diseases associated with this genus include: dwarfing of shoots (mop-top) and potato spraing disease. The name of the genus is derived from Potato mop-top virus, Potato mop-top virus, giving rise to Pomovirus.
Sadwavirus is a genus of viruses in the order Picornavirales, in the family Secoviridae. Plants serve as natural hosts. There are three subgenera and five species in this genus. Diseases associated with this genus include: satsuma dwarf virus disease which causes spoon-shaped leaves on citrus tree. Symptoms are enations, multiple flushing, stunting or dwarfing, reduction in number and size of leaves and fruits. The name of this genus comes from one of its species: Satsuma dwarf virus.
Tobravirus is a genus of viruses, in the family Virgaviridae. Plants serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: SBWMV: green and yellow mosaic.
Umbravirus is a genus of plant viruses assigned to the family Tombusviridae. The genus has 11 species.
Carlavirus, formerly known as the "Carnation latent virus group", is a genus of viruses in the order Tymovirales, in the family Betaflexiviridae. Plants serve as natural hosts. There are 53 species in this genus. Diseases associated with this genus include: mosaic and ringspot symptoms.
Aspiviridae, formerly Ophioviridae, is a family of segmented negative-strand RNA viruses which infect plants. Member viruses are characterized by an elongated and highly filamentous and flexible nucleocapsid with helical symmetry. It is a monotypic taxon containing only one genus, Ophiovirus. Aspiviridae is also the only family in the order Serpentovirales, which in turn is the only order in the class Milneviricetes.
Broad bean wilt virus 1 (BBWVI) is a plant pathogenic virus of the order Picornavirales, family Secoviridae, subfamily Comovirinae, genus Fabavirus.
Alphanecrovirus is a genus of viruses, in the family Tombusviridae. Plants serve as natural hosts. There are four species in this genus.
Betanecrovirus is a genus of viruses, in the family Tombusviridae. Plants serve as natural hosts. There are three species in this genus.
Albetovirus is a plant satellite virus genus. As a member of realm Riboviria without assigned family or order it contains just three species, Tobacco albetovirus 1, 2, and 3. The three virus species included in this genus represent satellite viruses that depend for their replication on helper viruses of the genera Alphanecrovirus or Betanecrovirus
References
- 1 2 3 W. P. Mowat, C. J. Asjes, A. A. Brunt.Narcissus tip necrosis virus. Descriptions of Plant Viruses. September 1976
- ↑ MINUTES OF THE 7th MEETING OF THE ICTV EDMONTON, CANADA, 12th AUGUST 1987
- ↑ ICTVdB Management (2006). 00.074.0.82.018. Narcissus tip necrosis virus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA
- ↑ ICTV Taxonomy History for Carmovirus
- ↑ ICTV Taxonomy Release History
