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1 大田转基因植物研究现状1.1 病原体诱导的病毒抗性自从Beachy等发现转基因植物表达烟草花叶病毒外壳蛋白基因可以抑制或延缓病毒病的发生之后 ,又发现许多病毒序列可以产生一定水平的抗病性。病原体诱导的病毒抗性 (PDR)基因包括一些非编码蛋白序列 (如缺陷干扰型RNAs和DNA
1 Research Status of Field Transgenic Plants 1.1 Pathogen-induced Viral Resistance Since Beachy et al found that the expression of the tobacco mosaic virus coat protein gene in transgenic plants can inhibit or delay the occurrence of viral diseases, many virus sequences have also been found to produce a certain level of disease resistance . Pathogen-induced viral resistance (PDR) genes include some non-coding protein sequences (such as defective interfering RNAs and DNA