# 1120: PYSE MEDIUM ## Main sol. 1120 8 g Peptone 3 g Yeast extract 15 g NaCl 0.35 g KCl 2.65 g MgSO4 x 7 H2O 0.65 g CaSO4 x 2 H2O 5.4 g MgCl2 x 6 H2O 1000 ml Distilled water 1. Adjust to pH 7.5.