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Main sol. 965

Internal Solution-ID: S1989

Equipment needed: Hungate tubes Filter Autoclave Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
NH4Cl 1.00 g 0.99 18.51
K2HPO4 0.30 g 0.297 1.705
KH2PO4 0.30 g 0.297 2.183
MgCl2 x 6 H2O 0.50 g 0.495 2.435
NaCl 2.00 g 1.98 33.884
KCl 0.20 g 0.198 2.656
CaCl2 x 2 H2O 0.05 g 0.05 0.337
Yeast extract
(OXOID)
1.00 g 0.99 -
Tryptone
(BD Bacto)
2.00 g 1.98 -
Modified Wolin's mineral solution 10.00 ml - -
Starch
(soluble)
10.00 g 9.901 -
Sodium resazurin
(0.1% w/v)
0.50 ml 5.0e-4 0.002
L-Cysteine HCl x H2O 0.50 g 0.495 2.819
Na2S2O3 x 5 H2O 5.00 g 4.951 19.947
Distilled water 1000.00 ml - -
1 Dissolve ingredients (except cysteine and thiosulfate), bring medium to the boil then cool to room temperature under 100% N2 gas atmosphere. Add cysteine and adjust pH to 7.5, then dispense medium under 100% N2 gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Before inoculation, add thiosulfate from a sterile anoxic stock solution prepared under 100% N2 gas and sterilized by filtration. Adjust pH of complete medium to 7.5, if necessary.
965 THERMOANAEROBACTER KREATINOPHILUS MEDIUM