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Comoviridae
''Comovirinae'' is a subfamily of viruses in the order '' Picornavirales'', in the family ''Secoviridae''; its genera were formerly classified in the family ''Comoviridae''. Plants serve as natural hosts. There are 62 species in this subfamily, assigned to 3 genera. Taxonomy The genera ''Comovirus'', ''Nepovirus'' and ''Fabavirus'' were classified into the family ''Comoviridae'' in 1993. This family was classified as part of the order ''Picornavirales'' when this order was created (2008), and its genera were reclassified as the subfamily ''Comovirinae'' of the family ''Secoviridae'' in 2009. accessed on line Nov. 20, 2015. The subfamily contains the following genera: * '' |
Comovirinae
''Comovirinae'' is a subfamily of viruses in the order ''Picornavirales'', in the family ''Secoviridae''; its genera were formerly classified in the family ''Comoviridae''. Plants serve as natural hosts. There are 62 species in this subfamily, assigned to 3 genera. Taxonomy The genera ''Comovirus'', ''Nepovirus'' and ''Fabavirus'' were classified into the family ''Comoviridae'' in 1993. This family was classified as part of the order ''Picornavirales'' when this order was created (2008), and its genera were reclassified as the subfamily ''Comovirinae'' of the family ''Secoviridae'' in 2009. accessed on line Nov. 20, 2015. The subfamily contains the following genera: * '' |
Fabavirus
''Fabavirus'' is a genus of plant viruses (plant pathogens) in the order ''Picornavirales'', in the family ''Secoviridae'', in the subfamily '' Comovirinae''. Plants serve as natural hosts. There are seven species in this genus. Taxonomy The genus contains the following species: *''Broad bean wilt virus 1'' *''Broad bean wilt virus 2'' *''Cucurbit mild mosaic virus'' *''Gentian mosaic virus'' *''Grapevine fabavirus'' *''Lamium mild mosaic virus'' *''Prunus virus F'' Structure Viruses in ''Fabavirus'' are non-enveloped, with icosahedral geometries, and T=pseudo3 symmetry. The diameter is around 28-30 nm. Genomes are linear and segmented, bipartite, around 23.4kb in length. Life cycle Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. The virus exits the host cell by tubule-gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secoviridae
''Secoviridae'' is a family of viruses in the order '' Picornavirales''. Plants serve as natural hosts. There are 8 genera and 86 species in this family, one of which is unassigned to a genus. The family was created in 2009 with the grouping of families ''Sequiviridae'', now dissolved, and ''Comoviridae'', now subfamily ''Comovirinae'', along with the then unassigned genera ''Cheravirus'', ''Sadwavirus'', and ''Torradovirus''. Taxonomy The family includes the following genera (-''virinae'' denotes subfamily and -''virus'' denotes genus): * '' Comovirinae'' ** '' Comovirus'' ** '' Fabavirus'' ** '' Nepovirus'' * Unassigned to a subfamily: ** '' Cheravirus'' ** '' Sadwavirus'' ** '' Sequivirus'' ** '' Torradovirus'' ** '' Waikavirus'' Lastly, one species is unassigned to a genus: ''Strawberry latent ringspot virus Strawberry latent ringspot virus (SLRSV) is a plant pathogenic virus in an Unassigned family. Its entry in the ICTV database indicates this virus is a Sadwavirus bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Comovirus
''Comovirus'' is a genus of viruses in the order '' Picornavirales'', in the family ''Secoviridae'', in the subfamily '' Comovirinae''. Plants serve as natural hosts. There are 15 species in this genus. Taxonomy The genus contains the following species: *''Andean potato mottle virus'' *'' Bean pod mottle virus'' *'' Bean rugose mosaic virus'' *''Broad bean stain virus'' *''Broad bean true mosaic virus'' *''Cowpea mosaic virus'' *'' Cowpea severe mosaic virus'' *'' Glycine mosaic virus'' *'' Pea green mottle virus'' *''Pea mild mosaic virus'' *'' Quail pea mosaic virus'' *''Radish mosaic virus'' *'' Red clover mottle virus'' *'' Squash mosaic virus'' *''Ullucus virus C ''Ullucus'' is a genus of flowering plants in the family Basellaceae, with one species, ''Ullucus tuberosus'', a plant grown primarily as a root vegetable, secondarily as a leaf vegetable. The name ''ulluco'' is derived from the Quechua word , ...'' Structure Viruses in ''Comovirus'' are non-enveloped, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nepovirus
''Nepovirus'' is a genus of viruses in the order ''Picornavirales'', in the family ''Secoviridae'', in the subfamily ''Comovirinae''. Plants serve as natural hosts. There are 40 species in this genus. Nepoviruses, unlike the other two genera (''Comovirus'' and ''Fabavirus'') in the subfamily ''Comovirinae'', are transmitted by nematodes. Taxonomy The genus contains the following species: *'' Aeonium ringspot virus'' *'' Apricot latent ringspot virus'' *'' Arabis mosaic virus'' *'' Arracacha virus A'' *'' Artichoke Aegean ringspot virus'' *'' Artichoke Italian latent virus'' *'' Artichoke yellow ringspot virus'' *''Beet ringspot virus'' *'' Blackcurrant reversion virus'' *'' Blueberry latent spherical virus'' *'' Blueberry leaf mottle virus'' *'' Cassava American latent virus'' *'' Cassava green mottle virus'' *'' Cherry leaf roll virus'' *''Chicory yellow mottle virus'' *'' Cocoa necrosis virus'' *''Crimson clover latent virus'' *''Cycas necrotic stunt virus'' *''Grapevine Ana ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viruses
A virus is a submicroscopic infectious agent that replicates only inside the living cells Cell most often refers to: * Cell (biology), the functional basic unit of life Cell may also refer to: Locations * Monastic cell, a small room, hut, or cave in which a religious recluse lives, alternatively the small precursor of a monastery w ... of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898,Dimmock p. 4 more than 9,000 virus species have been described in detail of the millions of types of viruses in the environment. Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity. The study of viruses is known as virology, a subspeciality of microbiology. When infected, a host cell is ofte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picornavirales
''Picornavirales'' is an order of viruses with vertebrate, invertebrate, protist and plant hosts. The name has a dual etymology. First, ''picorna-'' is an acronym for poliovirus, insensitivity to ether, coxsackievirus, orphan virus, rhinovirus, and ribonucleic acid. Secondly, pico-, meaning extremely small, combines with RNA to describe these very small RNA viruses. The order comprises viruses that historically are referred to as picorna-like viruses. Characteristics The families within this order share a number of common features: * The virions are non- enveloped, icosahedral, and about 30 nanometers in diameter. * The capsid has a "pseudo T=3" structure, and is composed of 60 protomers each made of three similar-sized but nonidentical beta barrels. * The genome is made of one or a few single-stranded RNA(s) serving directly as mRNA, without overlapping open reading frames. * The genome has a small protein, VPg, covalently attached to its 5' end, and usually a pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
