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Main sol. 326

Internal Solution-ID: S601

Equipment needed: Hungate tubes Filter Autoclave Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
KH2PO4 3.30 g 3.293 24.201
MgCl2 x 6 H2O 0.16 g 0.16 0.785
CoCl2 x 6 H2O 12.00 mg 0.012 0.092
Trace element solution SL-10 1.00 ml - -
Yeast extract 2.00 g 1.996 -
Trypticase peptone
(BD BBL)
2.00 g 1.996 -
Sodium resazurin
(0.1% w/v)
0.50 ml 5.0e-4 0.002
Na2CO3 1.00 g 0.998 9.416
Sucrose 5.00 g 4.99 14.578
Wolin's vitamin solution (10x) 1.00 ml - -
L-Cysteine HCl x H2O 0.30 g 0.299 1.705
Na2S x 9 H2O 0.30 g 0.299 1.247
Distilled water 1000.00 ml - -
1 Dissolve ingredients (except carbonate, sucrose, vitamins, cysteine and sulfide) and sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. After autoclaving add sucrose, cysteine and sulfide to the medium from sterile stock solutions autoclaved 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 and sterilized by filtration. Adjust pH of complete medium to pH 6.8 - 7.2, if necessary.
326 THERMOCLOSTRIDIUM (A-GÖ) MEDIUM