Citation: J. Gayathri et As. Raghavendra, AMMONIUM-IONS STIMULATE IN-VITRO THE ACTIVITY OF PHOSPHOENOLPYRUVATE CARBOXYLASE FROM LEAVES OF AMARANTHUS-HYPOCHONDRIACUS, A C-4 PLANT - EVIDENCE FOR ALLOSTERIC ACTIVATION, Biochemistry and molecular biology international, 33(2), 1994, pp. 337-343