# 1585a: SULFURIFERULA THIOPHILA MEDIUM ## Main sol. 1585a 0.2 g MgCl2 x 6 H2O 0.1 g CaCl2 x 2 H2O 0.1 g (NH4)2SO4 0.1 g KH2PO4 0.1 g KCl 4.2 g MOPS (SIGMA M1254) 1 ml **Trace element solution SL-10** 1 ml **Selenite-tungstate solution** 5 g Na2S2O3 x 5 H2O 2.5 g NaHCO3 1000 ml Distilled water 1. Dissolve ingredients except thiosulfate and bicarbonate, then adjust pH of medium to 6.5. Dispense medium under air atmosphere into serum vials suitable for anaerobic cultivation (e.g., 20 ml medium in 100 ml bottles) and close with butyl rubber septa. After autoclaving complete medium with thiosulfate and bicarbonate added from stock solutions sterilized by filtration. ## Trace element solution SL-10 10 ml HCl (25%) 1.5 g FeCl2 x 4 H2O 70 mg ZnCl2 100 mg MnCl2 x 4 H2O 6 mg H3BO3 190 mg CoCl2 x 6 H2O 2 mg CuCl2 x 2 H2O 24 mg NiCl2 x 6 H2O 36 mg Na2MoO4 x 2 H2O 990 ml Distilled water 1. First dissolve FeCl2 in the HCl, then dilute in water, add and dissolve the other salts. Finally make up to 1000.00 ml. ## Selenite-tungstate solution 0.5 g NaOH 3 mg Na2SeO3 x 5 H2O 4 mg Na2WO4 x 2 H2O 1000 ml Distilled water