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Narcissus Latent Virus
Narcissus latent virus (NLV) is a Macluravirus, a plant pathogenic virus of the family ''Potyviridae'', which infects '' Narcissus''. Description Characterised by Brunt in 1976, it is found in Western Europe in '' Narcissus'', ''Nerine'' and bulbous irises. It is often accompanied by other plant viruses, and is transmitted by aphids Aphids are small sap-sucking insects and members of the superfamily Aphidoidea. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white woolly aphids. A t .... It produces light and dark green mottling near the leaf tips. Taxonomy This '' Macluravirus'' should not be confused with the similarly named '' Narcissus common latent virus'' which is a '' Carlavirus'', and is sometimes incorrectly referred to by the name ''Narcissus latent virus''. References Bibliography * Hanna BERNIAK, Beata KOMOROWSKA, Dariusz SOCHACKI. DETECTION OF NARCISSUS LATE ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macluravirus
''Macluravirus'' is a genus of viruses, in the family ''Potyviridae''. Plants serve as natural hosts. There are ten species in this genus. Description Similarly to other ''Potyviridae'' genera, ''Macluravirus'' is characterised by its flexuous filamentous particles, inclusion bodies in infected plant cells and a polyprotein genome strategy. Unlike the other genera it is transmitted by insects. It also has shorter particles (650-660 nm in length). The genomes are monopartite. The name is derived from member species ''Maclura mosaic virus ''Maclura'' is a genus of flowering plants in the mulberry family, Moraceae. It includes the inedible Osage orange, which is used as mosquito repellent and grown throughout the United States as a hedging plant. It is dioecious, with male a ...''. History The genus was proposed at the ICTV meeting in San Diego in 1998, and subsequently ratified.Pringle C.R. & Fauquet, C.M. (1998). ICTV announcement – ratification of new ta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potyviridae
''Potyviridae'' is a family of positive-strand RNA viruses that encompasses more than 30% of known plant viruses, many of which are of great agricultural significance. The family has 12 genera and 235 species, three of which are unassigned to a genus. Structure Potyvirid virions are nonenveloped, flexuous filamentous, rod-shaped particles. The diameter is around 12–15 nm, with a length of 200–300 nm. Genome Genomes are linear and usually nonsegmented, around 8–12kb in length, consisting of positive-sense RNA, which is surrounded by a protein coat made up of a single viral encoded protein called a capsid. All induce the formation of virus inclusion bodies called cylindrical inclusions (‘pinwheels’) in their hosts. These consist of a single protein (about 70 kDa) made in their hosts from a single viral genome product. Member viruses encode large polypeptides that are cleaved into mature proteins. In 5'–3' order these proteins are * P1 (a serine protease ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcissus (plant)
''Narcissus'' is a genus of predominantly spring flowering perennial plant, perennial plants of the amaryllis family, Amaryllidaceae. Various common names including daffodil,The word "daffodil" is also applied to related genera such as ''Sternbergia'', ''Ismene (plant), Ismene'' and ''Fritillaria meleagris''. It has been suggested that the word "Daffodil" be restricted to the wild species of the British Isles, ''N. pseudonarcissus''. narcissus, and jonquil are used to describe all or some members of the genus. ''Narcissus'' has conspicuous flowers with six petal-like tepals surmounted by a cup- or trumpet-shaped Corona (plant structure), corona. The flowers are generally white and yellow (also orange or pink in garden varieties), with either uniform or contrasting coloured tepals and corona. ''Narcissus'' were well known in ancient civilisation, both medicinally and botanically, but formally described by Carl Linnaeus, Linnaeus in his ''Species Plantarum'' (1753). The genus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nerine
''Nerine'' (nerines, Guernsey lily, Jersey lily, spider lily) is a genus of flowering plants belonging to the family (biology), family Amaryllidaceae, subfamily Amaryllidoideae. They are bulbous perennial plant, perennials, some evergreen, associated with rocky and arid habitats. They bear spherical umbels of lily-like flowers in shades from white through pink to crimson. In the case of deciduous species, the flowers may appear on naked stems before the leaves develop. native plant, Native to South Africa, there are about 20–30 species in the genus. Though described as lilies, they are not significantly related to the true lilies (Liliaceae), but more closely resemble their relatives, ''Amaryllis'' and ''Lycoris (plant), Lycoris''. The genus was established by the Revd. William Herbert (botanist), William Herbert in 1820. Nerines have been widely cultivated and much Hybrid (biology)#Hybrid plants, hybridized worldwide, especially ''Nerine bowdenii'', ''Nerine masoniorum, N. m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris Plant
''Iris'' is a flowering plant genus of 310 accepted species with showy flowers. As well as being the scientific name, ''iris'' is also widely used as a common name for all ''Iris'' species, as well as some belonging to other closely related genera. A common name for some species is 'flags', while the plants of the subgenus ''Iris subg. Scorpiris, Scorpiris'' are widely known as 'Juno (plant), junos', particularly in horticulture. It is a popular garden flower. The often-segregated, monotypic genera ''Belamcanda'' (blackberry lily, ''I. domestica''), ''Hermodactylus'' (snake's head iris, ''I. tuberosa''), and ''Pardanthopsis'' (vesper iris, ''Iris dichotoma, I. dichotoma'') are currently included in ''Iris''. Three Iris varieties are used in the Iris flower data set outlined by Ronald Fisher in his 1936 paper ''The use of multiple measurements in taxonomic problems'' as an example of linear discriminant analysis. Description Irises are perennial plants, growing from creeping ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphids
Aphids are small sap-sucking insects and members of the superfamily Aphidoidea. Common names include greenfly and blackfly, although individuals within a species can vary widely in color. The group includes the fluffy white woolly aphids. A typical life cycle involves flightless females giving live birth to female nymphs—who may also be already pregnant, an adaptation scientists call telescoping generations—without the involvement of males. Maturing rapidly, females breed profusely so that the number of these insects multiplies quickly. Winged females may develop later in the season, allowing the insects to colonize new plants. In temperate regions, a phase of sexual reproduction occurs in the autumn, with the insects often overwintering as eggs. The life cycle of some species involves an alternation between two species of host plants, for example between an annual crop and a woody plant. Some species feed on only one type of plant, while others are generalists, coloni ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcissus Common Latent Virus
Narcissus common latent virus (NCLV) is a plant pathogenic virus. It infects Narcissus plants. The term 'latent' refers to the fact that infection may be symptomless. Transmission occurs by Aphids. Taxonomy This ''Carlavirus'' should not be confused with the similarly named '' Narcissus latent virus'' which is a '' Macluravirus'', and is sometimes incorrectly referred to by the latter name. References Bibliography * * * External links Uniprot NcLaVgp1Narcissus common latent virus USDA The United States Department of Agriculture (USDA) is the federal executive department responsible for developing and executing federal laws related to farming, forestry, rural economic development, and food. It aims to meet the needs of com ... Narcissus common latent virus EPPO Global Database Carlaviruses Viral plant pathogens and diseases {{Virus-plant-disease-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carlavirus
''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. Description ''Carlavirus'' is described in the 9th report of the ICTV (2009). The genus is characterised by having six ORFs (open reading frames) including a TGB ( Triple Gene Block). The viruses are transmitted by insects. Taxonomy The genus was first proposed in the first report of the ICTV in 1971, as the 'Carnation latent virus group' but was renamed in 1975 as the 'Carlavirus group', and as the genus ''Carlavirus'' in 1995 (6th report). In 2005 (8th report) it was placed in the '' Flexiviridae'' family, having previously been unassigned. The current position in the 9th report (2009) as a genus of the family ''Betaflexiviridae'' derives from the subsequent subdivision of ''Flexivi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viral Plant Pathogens And Diseases
Viral means "relating to viruses" (small infectious agents). Viral may also refer to: Viral behavior, or virality Memetic behavior likened that of a virus, for example: * Viral marketing, the use of existing social networks to spread a marketing message * Viral phenomenon, relating to contagion theory or the "virality" of network culture, such as a meme * Viral video, a video that quickly attains a high popularity Titled works * ''Viral'' (2016 American film), a 2016 American science fiction horror drama * ''Viral'' (2016 Hindi film), an Indian Bollywood film based on social media * ''Viral'' (web series), a 2014 Brazilian comedy web series * '' V/H/S: Viral'', an American anthology horror film * '' Viral: The Search for the Origin of COVID-19'', a book by Alina Chand and Matt Ridley See also * ''Virals'', a novel series by Kathy Reichs * Virulence Virulence is a pathogen's or microorganism's ability to cause damage to a host. In most, especially in animal system ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
