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Main sol. 1526

Internal Solution-ID: S3156

Equipment needed: Filter Autoclave Hungate tubes Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
NaCl 60.0 g 59.347 1015.52
MgCl2 x 6 H2O 6.0 g 5.935 29.192
KCl 1.5 g 1.484 19.902
Na2SO4 1.0 g 0.989 6.964
NH4Cl 1.0 g 0.989 18.492
CaCl2 x 2 H2O 0.4 g 0.396 2.691
K2HPO4 0.4 g 0.396 2.272
Modified Wolin's mineral solution 10.0 ml - -
Yeast extract
(BD Bacto)
1.0 g 0.989 -
Sodium resazurin
(0.1% w/v)
0.5 ml 4.9e-4 0.002
Na2CO3 1.5 g 1.484 13.999
Trypticase peptone
(BD BBL)
1.0 g 0.989 -
D-Glucose 1.0 g 0.989 5.49
Wolin's vitamin solution (10x) 1.0 ml - -
L-Cysteine HCl x H2O 0.5 g 0.495 2.816
Na2S x 9 H2O 0.5 g 0.495 2.059
Distilled water 1000.0 ml - -
1 Dissolve ingredients except carbonate, peptone, glucose, vitamins, cysteine and sulfide, then sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under the same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Add peptone, glucose, vitamins, cysteine and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas (vitamins are sterilized by filtration) and carbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas mixture. Prior to use adjust pH of complete medium to 7.3 - 7.5, if necessary.
2 Note: Use at least 5-10% (v/v) inoculum.
1526 SALINISPIRA (L21 LS) MEDIUM