Serological Identification of Strains of Potato Virus Y Infecting Tobacco Derived from Qiannan Guizhou Province
2012
Two hundred and one of tobacco samples with obvious PVY symptoms were collected from Qiannan in Guizhou Province, 2010. Three strains PVY N , PVY O and PVY C of PVY were detected by Tas-ELISA. The results demonstrated that the 171 of 201 samples were infected with PVY, and strain PVY N were 37, account for 21.6%; strain PVY O were 133, account for 77.8%; strain PVY C were 0, and complex infection of PVY N and PVY O was only one,account for 0.6%. The distribution regularity of PVY strains infecting tobacco in Qiannan was that the major strain of PVY was PVY O , and PVY N was a secondary strain, infecting relative less. No strain PVY C was detected, and complex infection rarely occurred.
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