Official DSMZ medium: This medium was manually curated by experts from the DSMZ.
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
|
Sea Salt
(SIGMA, must not show signs of caking) |
30.00 | g | 29.674 | - | |
| NH4Cl | 1.00 | g | 0.989 | 18.492 | |
| KH2PO4 | 0.35 | g | 0.346 | 2.544 | |
| MES [2-(N-morpholino) ethane sulfonic acid] | 1.95 | g | 1.929 | 9.879 | |
| Modified Wolin's mineral solution | 10.00 | ml | - | - | |
|
Sodium resazurin
(0.1% w/v) |
0.50 | ml | 4.9e-4 | 0.002 | |
| Sulfur , powdered | 10.00 | g | 9.891 | 308.425 | |
| Na2CO3 | 0.50 | g | 0.495 | 4.666 | |
| Wolin's vitamin solution (10x) | 1.00 | ml | - | - | |
| Na2S x 9 H2O | 0.50 | g | 0.495 | 2.059 | |
| Distilled water | 1000.00 | ml | - | - | |
| 1 Dissolve ingredients (except sulfur, carbonate, vitamins and sulfide), boil medium for 1 min, then cool to room temperature under 80% H2 and 20% CO2 gas atmosphere. Adjust pH to 6.0 and dispense under 80% H2 and 20% CO2 gas atmosphere into anoxic Hungate-type tubes or serum vials which contain already the appropriate amount of sulfur, only to 30% of their volume to allow for a large head space. Autoclave at a temperature of 110°C for 20 min! Add vitamins and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas atmosphere and carbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas mixture. Vitamins are sterilized by filtration. Adjust pH of the complete medium to 6.0 - 6.5, if necessary. | |||||
| 2 After inoculation use 1 bar overpressure of sterile 80% H2 and 20% CO2 gas mixture. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| Nitrilotriacetic acid | 1.50 | g | 1.5 | 7.848 | |
| MgSO4 x 7 H2O | 3.00 | g | 3 | 12.172 | |
| MnSO4 x H2O | 0.50 | g | 0.5 | 2.958 | |
| NaCl | 1.00 | g | 1 | 17.112 | |
| FeSO4 x 7 H2O | 0.10 | g | 0.1 | 0.36 | |
| CoSO4 x 7 H2O | 0.18 | g | 0.18 | 1.161 | |
| CaCl2 x 2 H2O | 0.10 | g | 0.1 | 0.68 | |
| ZnSO4 x 7 H2O | 0.18 | g | 0.18 | 0.626 | |
| CuSO4 x 5 H2O | 0.01 | g | 0.01 | 0.04 | |
| AlK(SO4)2 x 12 H2O | 0.02 | g | 0.02 | 0.042 | |
| H3BO3 | 0.01 | g | 0.01 | 0.162 | |
| Na2MoO4 x 2 H2O | 0.01 | g | 0.01 | 0.041 | |
| NiCl2 x 6 H2O | 0.03 | g | 0.03 | 0.231 | |
| Na2SeO3 x 5 H2O | 0.30 | mg | 3.0e-4 | 0.001 | |
| Na2WO4 x 2 H2O | 0.40 | mg | 4.0e-4 | 0.001 | |
| Distilled water | 1000.00 | ml | - | - | |
| 1 First dissolve nitrilotriacetic acid and adjust pH to 6.5 with KOH, then add minerals. Adjust final to pH 7.0 with KOH. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| Biotin | 20 | mg | 0.02 | 0.082 |
| Folic acid | 20 | mg | 0.02 | 0.045 |
| Pyridoxine hydrochloride | 100 | mg | 0.1 | 0.486 |
| Thiamine HCl | 50 | mg | 0.05 | 0.148 |
| Riboflavin | 50 | mg | 0.05 | 0.133 |
| Nicotinic acid | 50 | mg | 0.05 | 0.406 |
| Calcium D-(+)-pantothenate | 50 | mg | 0.05 | 0.21 |
| Vitamin B12 | 1 | mg | 1.0e-3 | 7.4e-4 |
| p-Aminobenzoic acid | 50 | mg | 0.05 | 0.365 |
| (DL)-alpha-Lipoic acid | 50 | mg | 0.05 | 0.242 |
| Distilled water | 1000 | ml | - | - |
| Last modified: | 29.04.25 |
| Source: | DSMZ |
| Taxonomic range: | Bacteria |
| Medium type: | Complex medium |
| Final pH: | 6.0 - 6.5 |
| Equipment needed: | Autoclave, Filter, Gassing station, Hungate tubes |
| Edit in Medium builder | |
Detailed instructions for the cultivation of anaerobes including important warnings can be found in the cultivation instructions .
| Compound | Conc. [g/L] | Conc. [mM] |
|---|---|---|
| Sea Salt | 29.674 | - |
| Sulfur | 9.891 | 308.425 |
| MES [2-(N-morpholino) ethane sulfonic acid] | 1.929 | 9.879 |
| NH4Cl | 0.989 | 18.492 |
| Na2CO3 | 0.495 | 4.666 |
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