# 1153: R3 A MEDIUM ## Main sol. 1153 1 g Yeast extract 1 g Proteose peptone (Difco No.3) 1 g Casamino acids (Difco) 1 g Glucose 1 g Starch (boiled and soluble) 0.5 g Sodium pyruvate 0.6 g K2HPO4 0.1 g MgSO4 x 7 H2O 15 g Agar 1000 ml Distilled water 1. Adjust to pH 7.2