Official DSMZ medium: This medium was manually curated by experts from the DSMZ.
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| NaCl | 17.00 | g | 16.553 | 283.249 | |
| MgSO4 x 7 H2O | 3.50 | g | 3.408 | 13.827 | |
| MgCl2 x 6 H2O | 2.75 | g | 2.678 | 13.171 | |
| KCl | 0.33 | g | 0.321 | 4.31 | |
| NaBr | 0.05 | g | 0.049 | 0.473 | |
| H3BO3 | 15.00 | mg | 0.015 | 0.236 | |
|
SrCl2 x 6 H2O
(0.1% w/v) |
7.00 | ml | 0.007 | 0.026 | |
| (NH4)2SO4 | 10.00 | mg | 0.01 | 0.074 | |
| NH4Cl | 0.50 | g | 0.487 | 9.102 | |
|
Citric acid
(0.1% w/v) |
5.00 | ml | 0.005 | 0.025 | |
|
KI
(0.1% w/v) |
2.50 | ml | 0.002 | 0.009 | |
| CaCl2 x 2 H2O | 0.75 | g | 0.73 | 4.967 | |
| KH2PO4 | 0.50 | g | 0.487 | 3.578 | |
|
NiCl2 x 6 H2O
(0.1% w/v) |
2.00 | ml | 0.002 | 0.015 | |
| Modified Wolin's mineral solution | 10.00 | ml | - | - | |
|
Tryptone
(BD BBL) |
6.00 | g | 5.842 | - | |
|
Sodium resazurin
(0.1% w/v) |
0.50 | ml | 4.9e-4 | 0.002 | |
|
Sulfur
(powder) |
6.00 | g | 5.842 | 182.172 | |
| Na2S x 9 H2O | 0.30 | g | 0.292 | 1.216 | |
| Distilled water | 1000.00 | ml | - | - | |
| 1 Dissolve ingredients except sulfur and sulfide and adjust pH to 6.0 with sulfuric acid. Sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic, dispense under the same gas atmosphere into anoxic Hungate-type tubes or serum vials containing the appropriate amount of sulfur, only to 30% of their volume to allow for a large headspace. Sterilize medium by heating for 2 - 3 hours in a boiling water bath on each of 3 successive days. Before use reduce the medium by adding sulfide from a sterile anoxic stock solution prepared under 100% N2 gas atmosphere. Check pH and adjust to pH 6.5 - 7.0, if necessary. | |||||
| 2 After inoculation pressurize culture vessels to 1 bar overpressure with a 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. | |||||
| Last modified: | 27.10.22 |
| Source: | DSMZ |
| Taxonomic range: | Archaea |
| Medium type: | Complex medium |
| Final pH: | 6.5 - 7.0 |
| Equipment needed: | Autoclave, Gassing station, Hungate tubes, Water bath |
| 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] |
|---|---|---|
| Sulfur | 5.842 | 182.172 |
| Tryptone | 5.842 | - |
| MgCl2 x 6 H2O | 2.678 | 13.171 |
| NH4Cl | 0.487 | 9.102 |
| KH2PO4 | 0.487 | 3.578 |
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