Obtainment of Transgenic Soybean Plants with Chitinase and Ribosome Inactivating Protein Genes and Their Resistance Identification Purification and Characterization of a New Ribosome Inactivating Protein from Cinchonaglycoside C-treated Tobacco Leaves COMPARATIVE STUDY ON PROPERTIES OF TRICHOKIRIN(TCK),A SINGLE CHAIN RIBOSOME INACTIVATING PROTEIN FROM THE SEED OF TRICHOSANTHES KIRILOWII WITH TRICHOSANTHIN (TCS)