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Main sol. 742

Internal Solution-ID: S1520

Equipment needed: Autoclave Hungate tubes Filter Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
NaCl 10.0 g 9.891 169.254
Na2SO4 3.0 g 2.967 20.891
Na2HPO4 0.2 g 0.198 1.394
KCl 0.2 g 0.198 2.654
NH4Cl 1.0 g 0.989 18.492
Modified Wolin's mineral solution 10.0 ml - -
Sodium resazurin
(0.1% w/v)
0.5 ml 4.9e-4 0.002
NaHCO3 15.0 g 14.837 176.614
Na2CO3 10.0 g 9.891 93.324
Yeast extract 1.5 g 1.484 -
Na-formate 5.0 g 4.946 72.722
Wolin's vitamin solution (10x) 1.0 ml - -
Na2S x 9 H2O 1.0 g 0.989 4.118
Distilled water 1000.0 ml - -
1 Dissolve ingredients except bicarbonate, carbonate, yeast extract, vitamins, formate, and sulfide. Sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic, then add bicarbonate and carbonate and adjust pH to 9.5. Dispense medium under 100% N2 gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Add yeast extract, vitamins, formate and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas. Vitamins should be sterilized by filtration. The pH of the complete medium should be at 9.5 - 9.7.
742 DESULFONATRONOVIBRIO MEDIUM