RECENT PROGRESS IN THE GENETIC ENGINEERING OF PLANT PROTEINASE INHIBITORANTI-INSECT PESTS Genetic Transformation of Chinese Cabbage with a Inducible Potato pin ⅡGene and the Bioassay for Pieris rapae L. Resistance Clone and Expression of SmPI1 and SmPI2 from Salvia miltiorrhiza under Stress Genetic Transformation of Chinese Cabbage with a Inducible Potato pin ⅡGene and the Bioassay for Pieris rapae L. Resistance Proceeding in Plant Anti-Insect Genetic Engineering Cloning of a Potato Proteinase Inhibitor Gene PINII-2x from Diploid Potato (Solanum phurejia L.) and Transgenic Investigation of Its Potential to Confer Insect Resistance in Rice Molecular Cloning and Sequence Analysis of a Gene Encoding Rice Proteinase Inhibitor STUDY ON INSECT-RESISTANT TRANSGENIC POPLAR PLANTS CONTAINING BOTH BT AND PI GENE