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tobacco etch virus
Tobacco etch virus (TEV) is a plant pathogenic virus 〔(About Plant Viruses )〕 in the genus Potyvirus and the virus family Potyviridae. Like other members of the Potyvirus genus, TEV is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein. The virus is a filamentous particle that measures about 730 nm in length. It is transmissible in a non-persistent manner by more than 10 species of aphids including ''Myzus persicae''. It also is easily transmitted by mechanical means but is not known to be transmitted by seeds.〔http://www.dpvweb.net/dpv/showdpv.php?dpvno=258〕
==Host Range ==
This virus infects many species of Solanaceae. Agriculturally important crops that it infects include several species of ''Capsicum'' (i.e. ''C. annuum'', ''C. frutescens''), tomato (''Lycopersicon esculentum''), and tobacco (''Nicotiana spp.'').
It also infects many perennial weed species that can act as virus reservoirs for susceptible agricultural crops. These weed species include ''Solanum nigrum'' (nightshade), ''S. aculeatissimum'' (soda apple), ''Chenopodium album'' (pigweed), ''Datura stramonium'' (jimson weed), ''Linaria canadensis'' (blue toadflax), and ''Physalis spp.'' (ground cherry). Thus, recommendations for the control of this virus include the control of weeds in and around susceptible solanaceous crops.〔http://www.freshfromflorida.com/content/download/11303/144109/pp297.pdf〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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