# J696: THERMODESULFATATOR ATLANTICUS MEDIUM ## Main sol. J696 20 g NaCl 3 g MgCl2 x 6 H2O 3 g Na2SO4 0.5 g KCl 0.3 g NH4Cl 0.1 g KH2PO4 1.73 g PIPES 0.11 g CaCl2 x 2 H2O 10 ml **Trace minerals** 10 ml **Trace vitamins** 0.3 g Na2S x 9 H2O 1000 ml Distilled water 1. Mix components except Na2S x 9H2O and adjust pH to 6.7. Distribute the medium into culture vessels (e.g., 20 ml in 120 ml serum bottles) under a gas stream of H2-CO2 (4:1, v/v), seal with butyl rubber stoppers and autoclave. Separately autoclave 3% Na2S x 9H2O solution under a N2 gas atmosphere. Prior to inoculation, reduce the medium by the addition of the Na2S x 9H2O solution. Pressurized the inoculated culture vessels to 200 kPa H2-CO2 (4:1, v/v). ## Trace minerals 1.5 g Nitrilotriacetic acid 3 g MgSO4 x 7 H2O 0.5 g MnSO4 x n H2O 1 g NaCl 0.1 g FeSO4 x 7 H2O 0.1 g CoSO4 x 7 H2O 0.1 g CaCl2 x 2 H2O 0.1 g ZnSO4 x 7 H2O 0.01 g CuSO4 x 5 H2O 0.01 g AlK(SO4)2 0.01 g H3BO3 0.01 g Na2MoO4 x 2 H2O 1000 ml Distilled water 1. Dissolve nitrilotriacetic acid and adjust pH to 6.5 with KOH solution. Then proceed to add minerals. Adjust final pH to 7.0. ## Trace vitamins 2 mg Biotin 2 mg Folic acid 10 mg Pyridoxine hydrochloride 5 mg Thiamine HCl 5 mg Riboflavin 5 mg Nicotinic acid 5 mg Calcium pantothenate 0.1 mg Vitamin B12 5 mg p-Aminobenzoic acid 5 mg Lipoic acid 1000 ml Distilled water