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《ACTA AGRICUL TURAE SHANGHAI》 1995-01
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IDENTIFICATION OF THE CMV-RESISTANCE OF TRANSGENIC TOMATO PLANTS

Yang Rongchang; Xu Helin; Yu Wengui; Lu Chungui;Long Mingsheng (Institute of Vegetable Crops,Jiangsu Academy of Agr. Sci.,Nanjing 210014,China. )Liu Chunqing; Pan Naisui; Chen Zhangliang (The Life Sciences Centre of Beliing University, Beijing 100871,Chin  
The transgenic plants of tomato 8805R1 ̄R4 progenies were inoculated with CMV virus at seedling stage. It was shown that the expression of the CMV-cp gene in the transgenic plants resulted in the protection of these plants from infection by CMV. The systemic infection of the virus was reduced or delayed,compared with the control plants. The resistance of 8805R3 progeny was significantly better than that of 8805R1 and the identical resistance to CMV was obtained in 8805R4.The 100% infected plants appeared in 8805R. progeny,when the seedlings were inoculated with CMV virus at higher concentration,but their new shoots and leaves grew vigorously and fruit-setting was normal.The CMV virus contents in the inoculated leaves and systemic leaves of 8805cp(+)and 8805cp (-)were tested by half-leaf method. It was concluded that the CMV content in thenewborn leaves of 8805cp(+) was remarkably lower than that of 8805cp (-).
【CateGory Index】: S641.203
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