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Pepper mottle virus : ウィキペディア英語版 | Pepper mottle virus
''Pepper mottle virus'' (PepMoV) is a plant pathogenic virus〔(About Plant Viruses )〕 in the genus Potyvirus and the virus family Potyviridae. Like other members of the Potyvirus genus, PepMV 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 737 nm in length. Isolates of this virus has been completely sequenced and its RNA is 9640 nucleotides long. This virus is transmitted by several species of aphids in a nonpersitant manner and by mechanical inoculation.〔(Plant Virus Descriptions )〕 == Geographic Distribution and Host Range ==
Pepper mottle was first recognized as an new strain of PVY infecting peppers in Arizona in 1969.〔M.R. Nelson and R.E. Wheeler. A new virus disease of pepper in Arizona. Pl. Dis. Reptr. 56: 731, 1972.〕 In the early 1970s an "atypical" PVY isolate was also found in a survey of pepper fields in central Florida.〔T. A. Zitter. Naturally occurring pepper virus strains in South Florida. Pl.Dis. Reptr. 56 586, 1972〕 Up until then, the two most important potyviruses infecting peppers in the US were ''Tobacco etch virus'' (TEV) and ''Potato virus Y'' (PVY). By 1975 it was clear that a third potyvirus, PepMoV (PeMV), was contributing to crop losses in pepper growing areas of the United States.〔(Purcifull, Zitter & Hiebert. Phytopathology 65: 559, 1975. )〕 It has also been found in California, New Mexico,〔(M.R. Nelson and R.E Wheeler. Phtopathology 68:979-984, 1978. )〕 Texas, and in Central America (El Salvador) (3). In 2003, it was reported in ''C. annuum'' in Japan.〔(Y.Ogawa, K. Hagiwara, H. Iwai, S. Izumi, and K. Arai. Journal of General Plant Pathology 69:348-350, 2003 )〕 This virus infects many species of ''Solanaceae'', including several species of ''Capsicum'' (i.e. ''C. annuum'', ''C. frutescens''), ''Datura'' spp., ''Lycopersicon esculentum'', ''Physalis floriana'', tobacco (''Nicotiana'' spp.) and nightshade (''Solanum'' sp.) (2,4). It was its reaction on ''C. frutescens'' (Tabasco pepper) that alerted researchers to the presence of a new virus in peppers.
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