Yeast extract 10 g Proteose peptone No.3 5 g Glucose 1 g NaCl 81 g MgSO4.7H2O 9.6 g MgCl2.6H2O 7 g CaCl2.2H2O 0.36 g KCl 2 g NaHCO3 0.06 g NaBr 0.026 g Agar 20 g Distilled water 1000 ml pH 7.2