CLONING OF A PROMOTER FRAGMENT OF BARK STORAGE PROTEIN GENE FROM POPULUS DELTOIDES AND ITS FUNCTION IN TRANSGENIC TOBACCO PLANTS Transgenic Tobacco Plants with a Fully Synthesized GFM CryIA Gene Provide Effective Tobacco Bollworm (Heliothis armigera) Control Effects of Transgenic Tobacco Plants Expressing ACA Gene from Amaranthus caudatus on the Population Development of Myzus persicae Aphid-resistant Transgenic Tobacco Plants Expressing Modified gna Gene