# 1023: MANNING MEDIUM ## Main sol. 1023 6 g (NH4)2SO4 0.2 g KCl 0.2 g K2HPO4 1 g MgSO4 x 7 H2O 0.02 g Ca(NO3)2 1000 ml Distilled water 1. Solution A is separately autoclaved and added to the medium. The medium is supplemented with Solution B (yeast extract). Medium pH adjusted by 0.1 N H2SO4 to pH 2.5 - 2.7. ## Solution A 33.4 g FeSO4 x 7 H2O 1000 ml Distilled water ## Solution B 0.2 g Yeast extract 1000 ml Distilled water