Official DSMZ medium: This medium was manually curated by experts from the DSMZ.
Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
---|---|---|---|---|---|
K2HPO4 x 3 H2O | 0.30 | g | 0.299 | 1.717 | |
KH2PO4 | 0.22 | g | 0.219 | 1.612 | |
(NH4)2SO4 | 0.22 | g | 0.219 | 1.66 | |
NaCl | 1.00 | g | 0.997 | 17.06 | |
MgSO4 x 7 H2O | 0.09 | g | 0.09 | 0.364 | |
CaCl2 x 2 H2O | 0.06 | g | 0.06 | 0.407 | |
FeSO4 x 7 H2O
(0.1% w/v in 0.1 N H2SO4) |
2.00 | ml | 0.002 | 0.007 | |
NiCl2 x 6 H2O
(0.1% w/v) |
0.20 | ml | 2.0e-4 | 0.002 | |
Modified Wolin's mineral solution | 1.00 | ml | - | - | |
Sodium resazurin
(0.1% w/v) |
0.50 | ml | 5.0e-4 | 0.002 | |
KNO3 | 1.00 | g | 0.997 | 9.861 | |
Na2CO3 | 1.50 | g | 1.496 | 14.11 | |
DL-Dithiothreitol | 0.30 | g | 0.299 | 1.938 | |
Distilled water | 1000.00 | ml | - | - | |
1 Dissolve ingredients (except nitrate, carbonate, and dithiothreitol), then sparge medium with 80% H2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under the same gas atmosphere into anoxic serum vials (e.g., 10 ml medium in 25 ml Balch-type tubes) and autoclave. Before use, add nitrate from a sterile anoxic stock solution prepared under 100% N2 gas and carbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas mixture. Before inoculation add dithiothreitol from an anoxic stock solution sterilized by filtration under 100% N2 gas and adjust the pH of the medium to 7.2. | |||||
2 After growth has started pressurize vials to 0.5 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: | 20.06.23 |
Source: | DSMZ |
Taxonomic range: | Bacteria |
Medium type: | Defined medium |
Final pH: | 7.2 |
Equipment needed: | Autoclave, Filter, Gassing station, Serum bottle |
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] |
---|---|---|
Na2CO3 | 1.496 | 14.11 |
KNO3 | 0.997 | 9.861 |
DL-Dithiothreitol | 0.299 | 1.938 |
K2HPO4 x 3 H2O | 0.299 | 1.717 |
(NH4)2SO4 | 0.219 | 1.66 |
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