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Main sol. 1599

Internal Solution-ID: S3335

Equipment needed: Hungate tubes Autoclave Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
NH4Cl 0.5 g 0.5 9.348
KH2PO4 0.2 g 0.2 1.47
MgCl2 x 6 H2O 0.1 g 0.1 0.492
KCl 0.2 g 0.2 2.683
NaCl 4.2 g 4.2 71.869
Na2SO4 3.0 g 3 21.121
Yeast extract 0.2 g 0.2 -
Trace element solution SL-10 1.0 ml - -
Selenite-tungstate solution 1.0 ml - -
Sodium resazurin
(0.1% w/v)
0.5 ml 5.0e-4 -
NaHCO3 3.3 g 3.3 39.282
NaCO3 6.5 g 6.5 -
Na-acetate 3.0 g 3 36.57
Na2S x 9 H2O 0.5 g 0.5 2.082
Distilled water 1000.0 ml - -
1 Dissolve ingredients (except carbonates, acetate and sulfide) and sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic. Then, add and dissolve bicarbonate and carbonate, adjust pH to 9.5, dispense under 100% N2 gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. After sterilization add acetate and sulfide from sterile anoxic stock solutions autoclaved under 100% N2 gas atmosphere. Adjust pH of complete medium to 9.5 - 9.7, if necessary.
1599 CONTUBERNALIS MEDIUM