TY - SER AU - Pompeu,G.B. AU - Gratão,P.L. AU - Vitorello,V.A. AU - Azevedo,R.A. TI - Antioxidant isoenzyme responses to nickel-induced stress in tobacco cell suspension culture KW - FUMO KW - NICOTIANA TABACUM KW - NÍQUEL KW - CATALASE KW - ENZIMA KW - ANTIOXIDANTE ER -