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Apium Virus Y
''Apium virus Y'' (ApVY) is a plant pathogenic virus in the genus ''Potyvirus'' and the virus family ''Potyviridae''. Apium virus Y is a recently described member of the potyvirus family. It was first found in Australia in 2002 in poison hemlock (''Conium maculatum'': an immigrant weed in Australia). A survey of native and weed species in the family Apiaceae found ApVY to be widespread in Australia. In addition, this survey and others found two other potyviruses. One was a well-known potyvirus infecting the Apiaceae, ''Celery mosaic virus'' (CeMV). CeMV has been found in celery (''Apium graveolens'') crops worldwide, including Australia, New Zealand and the US. The third potyvirus found in these surveys was another previously unknown potyvirus, ''Carrot virus Y'' (CarVY). Geographic distribution Since its sequence was first deposited in GenBank, ApVY has been found in New Zealand,J. Tang, G. R. G. Clover, and B. J. R. Alexander 2007. First Report of ''Apium virus Y'' in Cele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potyvirus
''Potyvirus'' is a genus of positive-strand RNA viruses in the family ''Potyviridae''. Plants serve as natural hosts. The genus is named after member virus ''potato virus Y''. Potyviruses account for about thirty percent of the currently known plant viruses. Like begomoviruses, members of this genus may cause significant losses in agricultural, pastoral, horticultural, and ornamental crops. More than 200 species of aphids spread potyviruses, and most are from the subfamily '' Aphidinae'' (genera ''Macrosiphum'' and ''Myzus''). The genus contains 190 species. Virology Structure The virion is non-enveloped with a flexuous and filamentous nucleocapsid, 680 to 900 nanometers (nm) long and is 11–20 nm in diameter. The nucleocapsid contains around 2000 copies of the capsid protein. The symmetry of the nucleocapsid is helical with a pitch of 3.4 nm. Genome The genome is a linear, positive-sense, single-stranded RNA ranging in size from 9,000–12,000 nucleoti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
