CHANGES OF FLUORESCENCE SPECTRA IN THE TOBACCO LEAF INFECTED BY TMV Effects of Transgenic Tobacco Plants Expressing ACA Gene from Amaranthus caudatus on the Population Development of Myzus persicae Male Sterile Tobacco Plants Obtained by Genetical-Engineering Aphid-resistant Transgenic Tobacco Plants Expressing Modified gna Gene CLONING OF A PROMOTER FRAGMENT OF BARK STORAGE PROTEIN GENE FROM POPULUS DELTOIDES AND ITS FUNCTION IN TRANSGENIC TOBACCO PLANTS THE FLUORESCENCE SPECTRA AND PHYSIOLOGIC CHARACTER OF CHLOROPLASTS IN TOBACCO LEAF AFTER TMV INFECTION Transgenic Tobacco Plants with a Fully Synthesized GFM CryIA Gene Provide Effective Tobacco Bollworm (Heliothis armigera) Control Genetical Engineered Male Sterile Tobacco Plants and Their Sensitivity to Temperature Analysis of vitamin B6 vitamers in tobacco plants by high performance liquid chromatography