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wheat yellow leaf virus
Wheat yellow leaf virus (WYLV) is a wheat (''Triticum'' spp. L.), barley (''Hordeum vulgare'' L.), rye (''Secale cereale'' M.Bieb.), and oat (''Avena sativa'' L.) pathogenic virus of the family Closteroviridae. WYLV virions are 1600–1850 nm in length and 10 nm in diameter. The virus, like other members of its genus, is transmitted by aphids.〔 Identified vectors include ''Rhopalosiphum padi'' L. and ''R. maidis'' Fitch. (Aphididae).〔 The virus has been identified in crop plants in Japan, China, and Italy.〔 Native host plants include Italian ryegrass (''Lolium multiflorum'' Lam.) in Europe and ''Agropyron tsukushiense'' var. ''transiens'' Ohwi in Japan.〔 The virus proliferates in the phloem of its host plants, interfering with the plant's ability to produce sufficient chlorophyll (Chlorosis), causing the leaves to yellow and the plant to die.〔
==References==
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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