# 1414: PORPHYROBACTER MEDIUM ## Main sol. 1414 2 g MgSO4 x 7 H2O 0.3 g NH4Cl 0.3 g KCl 15 g Na2SO4 1 g Na acetate 1 g Malic acid 1 g Yeast extract 0.5 g Bacto peptone 2 ml **Trace Element Solution** 2 ml **Vitamine Solution** 1000 ml Distilled water 1. Adjust to pH 5.9 before autoclaving 2. Prepare the liquid medium. Before inoculation add from sterile stock solutions: 5 ml/l NaHCO3 (10% w/v) 20 ml/l CaCl2 (10% w/v) 3 ml/l KH2PO4 (10% w/v) 2 ml/l **Vitamine Solution** 3. Adjust to pH 8.0 - 8.5 with 0.5 N NaOH. ## Trace Element Solution 300 mg FeSO4 x 7 H2O 3 mg MnCl2 x 4 H2O 5 mg CoCl2 x 6 H2O 1 mg CuCl2 x 2 H2O 2 mg NiCl2 x 6 H2O 3 mg Na2MoO4 x 2 H2O 5 mg ZnSO4 x 7 H2O 2 mg H3BO3 1000 ml Distilled water 1. Adjust to pH 3.0 ## Vitamine Solution 400 mg Nicotinic acid 400 mg Thiamine 80 mg Biotine 20 mg Vitamin B12 1000 ml Distilled water 1. Filtersterilized