Official DSMZ medium: This medium was manually curated by experts from the DSMZ.
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| NaCl | 180.00 | g | 179.641 | 3073.93 | |
| K2HPO4 | 1.50 | g | 1.497 | 8.595 | |
| NH4Cl | 0.50 | g | 0.499 | 9.329 | |
| Trace elements solution (Pfennig, 1965) | 1.00 | ml | - | - | |
| CaCl2 x 2 H2O | 0.05 | g | 0.05 | 0.339 | |
| MgSO4 x 7 H2O | 0.50 | g | 0.499 | 2.025 | |
| Na2S2O3 x 5 H2O | 5.00 | g | 4.99 | 20.106 | |
| NaHCO3 | 5.00 | g | 4.99 | 59.4 | |
| Seven vitamins solution | 1.00 | ml | - | - | |
| Distilled water | 1000.00 | ml | - | - | |
| 1 Dissolve sodium chloride, potassium hydrogenphosphate and ammonium chloride, then sparge solution with 80% N2 and 20% CO2 gas mixture for at least 30 - 45 min to remove dissolved oxygen and to saturate the solution with CO2. Dispense solution in vials suitable for anaerobic cultures (e.g. Balch-type tubes) to 30% volume under 80% N2 and 20% CO2 gas atmosphere. Close vials with butyl rubber septa and autoclave. Add trace elements, calcium chloride, magnesium sulfate, thiosulfate, and vitamins from sterile stock solutions prepared under 100% N2 gas and bicarbonate from a sterile stock solution prepared under 80% N2 and 20% CO2 gas mixture. Thiosulfate and vitamins are sterilized by filtration. Adjust pH of the medium to 7.5 - 7.8 using a sterile stock solution of sodium carbonate (5% w/v). | |||||
| 2 After inoculation, add sterile air (with hypodermic needle through the rubber closure) to a concentration of ca. 4% (v/v) O2 (e.g., add 7 ml of air to a Balch-type tube with a total volume of 27 ml). | |||||
| 3 Note: Use at least 10% (v/v) as inoculum. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| EDTA | 5.00 | g | 5 | 17.109 | |
| FeSO4 x 7 H2O | 2.20 | g | 2.2 | 7.913 | |
| ZnSO4 x 7 H2O | 0.10 | g | 0.1 | 0.348 | |
| MnCl2 x 4 H2O | 0.03 | g | 0.03 | 0.152 | |
| H3BO3 | 0.03 | g | 0.03 | 0.485 | |
| CoCl2 x 6 H2O | 0.20 | g | 0.2 | 1.54 | |
| CuCl2 x 2 H2O | 0.03 | g | 0.03 | 0.176 | |
| NiCl2 x 6 H2O | 0.03 | g | 0.03 | 0.231 | |
| Na2MoO4 x 2 H2O | 0.03 | g | 0.03 | 0.124 | |
| Distilled water | 1000.00 | ml | - | - | |
| 1 pH 3.0-4.0 | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| Vitamin B12 | 100 | mg | 0.1 | 0.074 |
| p-Aminobenzoic acid | 80 | mg | 0.08 | 0.583 |
| D-(+)-biotin | 20 | mg | 0.02 | 0.082 |
| Nicotinic acid | 200 | mg | 0.2 | 1.625 |
| Calcium pantothenate | 100 | mg | 0.1 | 0.21 |
| Pyridoxine hydrochloride | 300 | mg | 0.3 | 1.459 |
| Thiamine-HCl x 2 H2O | 200 | mg | 0.2 | 0.536 |
| Distilled water | 1000 | ml | - | - |
| Last modified: | 17.10.22 |
| Source: | DSMZ |
| Taxonomic range: | Bacteria |
| Medium type: | Defined medium |
| Final pH: | 7.5 - 7.8 |
| Equipment needed: | Autoclave, Filter, Gassing station |
| Edit in Medium builder | |
Detailed instructions for the cultivation of anaerobes including important warnings can be found in the cultivation instructions .
| All strains for this medium: | 1 |
| Compound | Conc. [g/L] | Conc. [mM] |
|---|---|---|
| NaCl | 179.641 | 3073.93 |
| NaHCO3 | 4.99 | 59.4 |
| Na2S2O3 x 5 H2O | 4.99 | 20.106 |
| K2HPO4 | 1.497 | 8.595 |
| NH4Cl | 0.499 | 9.329 |
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