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Closteroviridae
''Closteroviridae'' is a family of viruses. Plants serve as natural hosts. There are four genera and 59 species in this family, seven of which are unassigned to a genus. Diseases associated with this family include: yellowing and necrosis, particularly affecting the phloem. Taxonomy Genome type and transmission vector are two of the most important traits used for classification. Ampeloviruses and Closteroviruses have monopartite genomes and are transmitted by pseudococcid mealybugs (and soft scale insects) and aphids respectively. While Criniviruses are bipartite and transmitted by whiteflies Whiteflies are Hemipterans that typically feed on the undersides of plant leaves. They comprise the family Aleyrodidae, the only family in the superfamily Aleyrodoidea. More than 1550 species have been described. Description and taxonomy The .... Genera: * '' Ampelovirus'' * '' Closterovirus'' * '' Crinivirus'' * '' Velarivirus'' Unassigned species: * '' Actinidia virus 1'' * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closteroviridae
''Closteroviridae'' is a family of viruses. Plants serve as natural hosts. There are four genera and 59 species in this family, seven of which are unassigned to a genus. Diseases associated with this family include: yellowing and necrosis, particularly affecting the phloem. Taxonomy Genome type and transmission vector are two of the most important traits used for classification. Ampeloviruses and Closteroviruses have monopartite genomes and are transmitted by pseudococcid mealybugs (and soft scale insects) and aphids respectively. While Criniviruses are bipartite and transmitted by whiteflies Whiteflies are Hemipterans that typically feed on the undersides of plant leaves. They comprise the family Aleyrodidae, the only family in the superfamily Aleyrodoidea. More than 1550 species have been described. Description and taxonomy The .... Genera: * '' Ampelovirus'' * '' Closterovirus'' * '' Crinivirus'' * '' Velarivirus'' Unassigned species: * '' Actinidia virus 1'' * ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampelovirus
''Ampelovirus'' is a genus of viruses, in the family ''Closteroviridae''. Plants serve as natural hosts. There are 13 species in this genus. Diseases associated with this genus include: yellowing and necrosis, particularly affecting the phloem. Taxonomy The following species are assigned to the genus: * '' Air potato ampelovirus 1'' * '' Blackberry vein banding-associated virus'' * ''Grapevine leafroll-associated virus 1'' * ''Grapevine leafroll-associated virus 3'' * ''Grapevine leafroll-associated virus 4'' * ''Grapevine leafroll-associated virus 13 ''Vitis'' (grapevine) is a genus of 79 accepted species of vining plants in the flowering plant family Vitaceae. The genus is made up of species predominantly from the Northern Hemisphere. It is economically important as the source of grapes, b ...'' * '' Little cherry virus 2'' * '' Pineapple mealybug wilt-associated virus 1'' * '' Pineapple mealybug wilt-associated virus 2'' * '' Pineapple mealybug wilt-associated virus 3'' * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crinivirus
''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 (and are therefore group IV). There are 14 species in this genus. Diseases associated with this genus include: yellowing and necrosis, particularly affecting the phloem. Examples of species whose entire genomes have been sequenced that are currently classified into the genus include the Sweet potato chlorotic stunt virus (SPCSV) and the Lettuce infectious yellows virus (LIYV).ICTVdB Management (2006) Genetics The viruses of this genus have segmented, bipartite genomes that add up to 7,500–19,500 nucleotides in length. Their genomes also code for proteins that do not form part of the virion particles as well as structural proteins. The Universal Virus Database describes that their genome sequences near their 3'-ends are capable of hairpin-loop formation and also believe that their 5'-ends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Velarivirus
''Velarivirus'' is a genus of viruses, in the family ''Closteroviridae''. Plants serve as natural hosts. There are eight species in this genus. Diseases associated with this genus include: GLRaV-7: symptomless in white-berried grapevine cultivar from Albania. However, it induces leafroll symptoms onto grafted cv. cabernet. Taxonomy The following species are assigned to the genus: * '' Areca palm velarivirus 1'' * '' Cordyline virus 1'' * '' Cordyline virus 2'' * '' Cordyline virus 3'' * '' Cordyline virus 4'' * ''Grapevine leafroll-associated virus 7 ''Vitis'' (grapevine) is a genus of 79 accepted species of vining plants in the flowering plant family Vitaceae. The genus is made up of species predominantly from the Northern Hemisphere. It is economically important as the source of grapes, b ...'' * '' Little cherry virus 1'' * '' Malus domestica virus A'' Structure Viruses in the genus ''Velarivirus'' are non-enveloped, with filamentous geometries. These viruses are about 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Closterovirus
''Closterovirus'', also known as beet yellows viral group, is a genus of viruses, in the family ''Closteroviridae''. Plants serve as natural hosts. There are 17 species in this genus. Diseases associated with this genus include: yellowing and necrosis, particularly affecting the phloem. This genus has a probably worldwide distribution and includes among other viral species the ''Beet yellows virus'' (the type species) and ''Citrus tristeza virus'', rather economically important plant diseases. At least some species require vectors such as aphids or mealybugs for their transmission from plant to plant. Taxonomy The following species are assigned to the genus: * '' Arracacha virus 1'' * '' Beet yellow stunt virus'' * ''Beet yellows virus'' * '' Blackcurrant closterovirus 1'' * '' Burdock yellows virus'' * ''Carnation necrotic fleck virus'' * '' Carrot closterovirus 1'' * '' Carrot yellow leaf virus'' * ''Citrus tristeza virus'' * ''Grapevine leafroll-associated virus 2'' * '' Min ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blueberry Virus A
Blueberries are a widely distributed and widespread group of perennial flowering plants with blue or purple berries. They are classified in the section ''Cyanococcus'' within the genus ''Vaccinium''. ''Vaccinium'' also includes cranberries, bilberries, huckleberries and Madeira blueberries. Commercial blueberries—both wild (lowbush) and cultivated (highbush)—are all native to North America. The highbush varieties were introduced into Europe during the 1930s. Blueberries are usually prostrate shrubs that can vary in size from to in height. In commercial production of blueberries, the species with small, pea-size berries growing on low-level bushes are known as "lowbush blueberries" (synonymous with "wild"), while the species with larger berries growing on taller, cultivated bushes are known as "highbush blueberries". Canada is the leading producer of lowbush blueberries, while the United States produces some 40% of the world supply of highbush blueberries. Origin and hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Persimmon Virus B
The persimmon is the edible fruit of a number of species of trees in the genus ''Diospyros''. The most widely cultivated of these is the Oriental persimmon, ''Diospyros kaki'' ''Diospyros'' is in the family Ebenaceae, and a number of non-persimmon species of the genus are grown for ebony timber. In 2019, China produced 75% of the world total of persimmons. Description Like the tomato, persimmons are not commonly considered to be berries, but morphologically the fruit is in fact a berry. The tree ''Diospyros kaki'' is the most widely cultivated species of persimmon. Typically the tree reaches in height and is round-topped. It usually stands erect, but sometimes can be crooked or have a willowy appearance. The leaves are long, and are oblong in shape with brown-hairy petioles in length. They are leathery and glossy on the upper surface, brown and silky underneath. The leaves are deciduous and bluish-green in color. In autumn, they turn to yellow, orange, or red. Persim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Olive Leaf Yellowing-associated Virus
The olive, botanical name ''Olea europaea'', meaning 'European olive' in Latin, is a species of small tree or shrub in the family Oleaceae, found traditionally in the Mediterranean Basin. When in shrub form, it is known as ''Olea europaea'' 'Montra', dwarf olive, or little olive. The species is cultivated in all the countries of the Mediterranean, as well as in Australia, New Zealand, North and South America and South Africa. ''Olea europaea'' is the type species for the genus ''Olea''. The olive's fruit, also called an "olive", is of major agricultural importance in the Mediterranean region as the source of olive oil; it is one of the core ingredients in Mediterranean cuisine. The tree and its fruit give their name to the plant family, which also includes species such as lilac, jasmine, forsythia, and the true ash tree. Thousands of cultivars of the olive tree are known. Olive cultivars may be used primarily for oil, eating, or both. Olives cultivated for consumption are gener ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
