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Main sol. 502

Internal Solution-ID: S1029

Equipment needed: Autoclave Hungate tubes Filter Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
NaCl 1.20 g 1.198 20.493
MgCl2 x 6 H2O 0.40 g 0.399 1.964
KCl 0.30 g 0.299 4.016
CaCl2 x 2 H2O 0.15 g 0.15 1.018
NH4Cl 0.27 g 0.269 5.038
KH2PO4 0.21 g 0.21 1.54
Na2SO4 0.10 g 0.1 0.703
Trace element solution SL-10 1.00 ml - -
Inulin 5.00 g 4.99 -
Sodium resazurin
(0.1% w/v)
0.50 ml 5.0e-4 0.002
Yeast extract 0.03 g 0.03 -
Casamino acids
(BD Bacto)
0.03 g 0.03 -
Na2CO3 1.50 g 1.497 14.124
Na2HPO4 2.66 g 2.655 18.7
Wolin's vitamin solution (10x) 1.00 ml - -
Na2S x 9 H2O 0.15 g 0.15 0.623
Distilled water 1000.00 ml - -
1 Dissolve ingredients (except yeast extract, Casamino acids, vitamins, carbonate, hydrogenphosphate and sulfide), bring medium to the boil, then cool to room temperature under 80% N2 and 20% CO2 gas mixture. Dispense under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. After sterilization add yeast extract, Casamino acids, hydrogenphosphate and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas and carbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas mixture. Vitamins are prepared under 100% N2 gas atmosphere and strerilized by filtration. Adjust pH of complete medium to 7.0, if necessay.
502 PSEUDOCLOSTRIDIUM MEDIUM