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《Acta Microbiologica Sinica》 1994-05
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TOLERANCE OF THE TRANSGENIC TOBACCO EXPRESSING SATELLITE RNA OF CUCUMBER MOSAIC VIRUS TO TOBACCO MOSAIC VIRUS

Liu Yule Wang Zhendong Zhu Feng Kang Liangyi Tien Po (Institute of Microbiology, Academia Sinica, Beijing 100080)  
Transgenic tobacco plants that express satellite RNA of cucumber mosaic virus (CMV) are resistant to infection by CMV, To determine whether these plants also protect against other viruses, such as tobacco mosaic virus (TMV), they were inoculated with 0. 5μg/ml TMV. These plants showed much milder symptom by TMV and lower disease index than untransformed plants. The acumulation of TMV in these plants is similar to that in untransformed tobacco plants. These results demonstrate that transgenic tobacco plants expressing satellite RNA of CMV has a significant degree of protection against TMV, and benefit the understanding of the mechasim of virus satellite RNA-mediated resistance to virus and application of biological control agent containg virus satellite RNA and transgenic plants expressing virus satellite RNA. This is the first report that virus satellite RNA can reduce the symptom of unrelated virus.
【CateGory Index】: S432.41
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