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Tymoviridae
''Tymoviridae'' is a family of single-stranded positive sense RNA viruses in the order ''Tymovirales''. Plants serve as natural hosts. There are 42 species in this family, assigned to three genera, with two species unassigned to a genus. Taxonomy The family includes the following three genera: * '' Maculavirus'' * '' Marafivirus'' * '' Tymovirus'' Additionally, the following two species are not assigned to a genus: * '' Bombyx mori latent virus'' * '' Poinsettia mosaic virus'' Proposed viruses * Culex tymovirusWang L, Lv X, Zhai Y, Fu S, Wang D, Rayner S, Tang Q, Liang G (2012) Genomic characterization of a novel virus of the family tymoviridae isolated from mosquitoes. PLoS One 7(7):e39845. * Fig fleck-associated virus Virology The virions are non-enveloped and isometric with a diameter of around 30 nm, with an icosahedral structure and a triangulation number T=3. The linear genome is between of 6–7.5 kilobases in length and encodes one large open reading frame. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Poinsettia Mosaic Virus
''Poinsettia mosaic virus'' (PnMV) is a pathogenic plant virus Plant viruses are viruses that affect plants. Like all other viruses, plant viruses are obligate intracellular parasites that do not have the molecular machinery to replicate without a host. Plant viruses can be pathogenic to higher plants. .... External links * Tymoviridae Viral plant pathogens and diseases {{Virus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marafivirus
''Marafivirus'' is a genus of viruses in the order ''Tymovirales'', in the family ''Tymoviridae''. Plants serve as natural hosts. There are 11 species in this genus. Taxonomy The genus contains the following species: * ''Alfalfa virus F'' * ''Bermuda grass etched-line virus'' * ''Blackberry virus S'' * ''Citrus sudden death-associated virus'' * ''Grapevine asteroid mosaic associated virus'' * ''Grapevine Syrah virus 1'' * ''Maize rayado fino virus'' * ''Nectarine marafivirus M'' * ''Oat blue dwarf virus'' * ''Olive latent virus 3'' * ''Peach marafivirus D'' Structure Viruses in ''Marafivirus'' are non-enveloped, with icosahedral and isometric geometries, and T=3 symmetry. The diameter is around 30 nm. Genomes are linear, around 6-7kb in length. Life cycle 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. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maculavirus
''Maculavirus'' is a genus of viruses in the order ''Tymovirales'', in the family ''Tymoviridae ''Tymoviridae'' is a family of single-stranded positive sense RNA viruses in the order ''Tymovirales''. Plants serve as natural hosts. There are 42 species in this family, assigned to three genera, with two species unassigned to a genus. Taxono ...''. Plants serve as natural hosts. There is only one species in this genus: ''Grapevine fleck virus''. Structure Viruses in ''Maculavirus'' are non-enveloped, with icosahedral and isometric geometries. The diameter is around 30 nm. Genomes are linear, around 7.5kb in length. Life cycle 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 monopartite non-tubule guided viral movement. Plants serve as the natural host. The virus is transmi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tymovirus
''Tymovirus'' is a genus of viruses in the order ''Tymovirales'', in the family ''Tymoviridae''. Plants serve as natural hosts. There are 28 species in this genus. Taxonomy The genus contains the following species: * '' Anagyris vein yellowing virus'' * ''Andean potato latent virus'' * '' Andean potato mild mosaic virus'' * '' Belladonna mottle virus'' * '' Cacao yellow mosaic virus'' * '' Calopogonium yellow vein virus'' * '' Chayote mosaic virus'' * '' Chiltepin yellow mosaic virus'' * '' Clitoria yellow vein virus'' * '' Desmodium yellow mottle virus'' * '' Dulcamara mottle virus'' * '' Eggplant mosaic virus'' * '' Erysimum latent virus'' * '' Kennedya yellow mosaic virus'' * '' Melon rugose mosaic virus'' * '' Nemesia ring necrosis virus'' * '' Okra mosaic virus'' * '' Ononis yellow mosaic virus'' * '' Passion fruit yellow mosaic virus'' * '' Peanut yellow mosaic virus'' * '' Petunia vein banding virus'' * '' Physalis mottle virus'' * '' Plantago mottle virus'' * '' Scrophul ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tymovirales
''Tymovirales'' is an order of viruses with five families. The group consists of viruses which have positive-sense, single-stranded RNA genomes. Their genetic material is protected by a special coat protein. Description Tymoviruses are mainly plant pathogens first described in 2004. They are characterised by similarities in their replication-associated polyproteins. These account for the majority of their genomic coding capacity. They are considered to form a group, phylogenetically, referred to as flexiviruses, with filamentous virions A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1 .... References Bibliography * External links ICTV Virus Taxonomy 2009 UniProt Taxonomy {{Use dmy dates, date=April 2017 Virus orders Riboviria ... [...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] |
Bombyx Mori Latent Virus
''Bombyx'' is the genus of true silk moths or mulberry silk moths of the family Bombycidae, also known as silkworms, which are the larvae or caterpillars of silk moths. The genus was erected as a subgenus by Carl Linnaeus in his 10th edition of ''Systema Naturae'' (1758). Species * ''Bombyx horsfieldi'' (Moore, 1860) * ''Bombyx huttoni'' Westwood, 1847 * ''Bombyx incomposita'' van Eecke, 1929 * ''Bombyx lemeepauli'' Lemée, 1950 * ''Bombyx mandarina'' (Moore, 1872) – wild silk moth * ''Bombyx mori'' (Linnaeus, 1758) – domestic silk moth * ''Bombyx rotundapex'' Miyata & Kishida, 1990 * ''Bombyx shini'' Park and Sohn, 2002 Hybrids Two instances of semi-natural hybridisation are known within this genus: * ''Bombyx'' hybrid, a hybrid between a male ''B. mandarina'' and a female ''B. mori'' * ''Bombyx'' second hybrid, a hybrid between a male ''B. mori'' and a female ''B. mandarina'' Food The caterpillars feed on Moraceae, especially on mulberries (''Morus Morus may refer to: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Turnip Yellow Mosaic Virus 2
The turnip or white turnip (''Brassica rapa'' subsp. ''rapa'') is a root vegetable commonly grown in temperate climates worldwide for its white, fleshy taproot. The word ''turnip'' is a compound of ''turn'' as in turned/rounded on a lathe and ''neep'', derived from Latin ''napus'', the word for the plant. Small, tender varieties are grown for human consumption, while larger varieties are grown as feed for livestock. In Northern England, Scotland, Ireland, Cornwall and parts of Canada (Quebec, Newfoundland, Manitoba and the Maritimes), the word ''turnip'' (or ''neep'') often refers to rutabaga, also known as ''swede'', a larger, yellow root vegetable in the same genus (''Brassica''). Description The most common type of turnip is mostly white-skinned apart from the upper , which protrude above the ground and are purple or red or greenish where the sun has hit. This above-ground part develops from stem tissue, but is fused with the root. The interior flesh is entirely white. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Culex Tymovirus
''Culex'' is a genus of mosquitoes, several species of which serve as vectors of one or more important diseases of birds, humans, and other animals. The diseases they vector include arbovirus infections such as West Nile virus, Japanese encephalitis, or St. Louis encephalitis, but also filariasis and avian malaria. They occur worldwide except for the extreme northern parts of the temperate zone, and are the most common form of mosquito encountered in some major U.S. cities, such as Los Angeles. Etymology In naming this genus, Carl Linnaeus appropriated the nonspecific Latin term for a midge or gnat: '. Description Depending on the species, the adult ''Culex'' mosquito may measure from . The adult morphology is typical of flies in the suborder Nematocera with the head, thorax, and abdomen clearly defined and the two forewings held horizontally over the abdomen when at rest. As in all Diptera capable of flight, the second pair of wings is reduced and modified into tiny, inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isometry
In mathematics, an isometry (or congruence, or congruent transformation) is a distance-preserving transformation between metric spaces, usually assumed to be bijective. The word isometry is derived from the Ancient Greek: ἴσος ''isos'' meaning "equal", and μέτρον ''metron'' meaning "measure". Introduction Given a metric space (loosely, a set and a scheme for assigning distances between elements of the set), an isometry is a transformation which maps elements to the same or another metric space such that the distance between the image elements in the new metric space is equal to the distance between the elements in the original metric space. In a two-dimensional or three-dimensional Euclidean space, two geometric figures are congruent if they are related by an isometry; the isometry that relates them is either a rigid motion (translation or rotation), or a composition of a rigid motion and a reflection. Isometries are often used in constructions where one spa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Icosahedral
In geometry, an icosahedron ( or ) is a polyhedron with 20 faces. The name comes and . The plural can be either "icosahedra" () or "icosahedrons". There are infinitely many non- similar shapes of icosahedra, some of them being more symmetrical than others. The best known is the (convex, non-stellated) regular icosahedron—one of the Platonic solids—whose faces are 20 equilateral triangles. Regular icosahedra There are two objects, one convex and one nonconvex, that can both be called regular icosahedra. Each has 30 edges and 20 equilateral triangle faces with five meeting at each of its twelve vertices. Both have icosahedral symmetry. The term "regular icosahedron" generally refers to the convex variety, while the nonconvex form is called a ''great icosahedron''. Convex regular icosahedron The convex regular icosahedron is usually referred to simply as the ''regular icosahedron'', one of the five regular Platonic solids, and is represented by its Schläfli symbol , cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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