Official DSMZ medium: This medium was manually curated by experts from the DSMZ.
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
| MgCl2 x 6 H2O | 0.2 | g | 0.2 | 0.984 | |
| CaCl2 x 2 H2O | 0.1 | g | 0.1 | 0.68 | |
| (NH4)2SO4 | 0.1 | g | 0.1 | 0.757 | |
| KH2PO4 | 0.1 | g | 0.1 | 0.735 | |
| KCl | 0.1 | g | 0.1 | 1.341 | |
| Trace element solution SL-10 | 1.0 | ml | - | - | |
| Selenite-tungstate solution | 1.0 | ml | - | - | |
| Amorphous Fe(OH)3 | 45.0 | ml | - | - | |
| Na2CO3 | 2.5 | g | 2.5 | 23.588 | |
| Na2S2O5 | 0.9 | g | 0.9 | 4.734 | |
| Seven vitamins solution | 1.0 | ml | - | - | |
| Distilled water | 960.0 | ml | - | - | |
| 1 Dissolve ingredients (except carbonate, pyrosulfite and vitamins), then 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 Hungate-type tubes or serum vials and autoclave. Add pyrosulfite from a 10% (w/v) stock solution adjusted to pH 7.5-8.0 with NaOH, made anoxic with 100% N2 gas and sterilized by filtration. Vitamins are added from a stock solution prepared under 100% N2 gas atmosphere and sterilized by filtration and carbonate is added from a sterile stock solution prepared under 80% N2 and 20% CO2 gas atmosphere. Adjust pH of complete medium to 7.5 - 8.0. Incubate without shaking. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
|
HCl
(25%) |
10.0 | ml | 2.5 | 68.568 | |
| FeCl2 x 4 H2O | 1.5 | g | 1.5 | 7.545 | |
| ZnCl2 | 70.0 | mg | 0.07 | 0.514 | |
| MnCl2 x 4 H2O | 100.0 | mg | 0.1 | 0.505 | |
| H3BO3 | 6.0 | mg | 0.006 | 0.097 | |
| CoCl2 x 6 H2O | 190.0 | mg | 0.19 | 1.463 | |
| CuCl2 x 2 H2O | 2.0 | mg | 0.002 | 0.012 | |
| NiCl2 x 6 H2O | 24.0 | mg | 0.024 | 0.185 | |
| Na2MoO4 x 2 H2O | 36.0 | mg | 0.036 | 0.149 | |
| Distilled water | 990.0 | ml | - | - | |
| 1 First dissolve FeCl2 in the HCl, then dilute in water, add and dissolve the other salts. Finally make up to 1000.00 ml. | |||||
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] |
|---|---|---|---|---|
| NaOH | 0.5 | g | 0.5 | 12.501 |
| Na2SeO3 x 5 H2O | 3.0 | mg | 0.003 | 0.011 |
| Na2WO4 x 2 H2O | 4.0 | mg | 0.004 | 0.012 |
| Distilled water | 1000.0 | ml | - | - |
| Compound | Amount | Unit | Conc. [g/L] | Conc. [mM] | |
|---|---|---|---|---|---|
|
FeCl3 x 6 H2O
(60.00 g/l) |
320 | ml | - | - | |
|
NaOH
, adjust if required
(10% w/v) |
80 | ml | 20 | 500.038 | |
| 1 Slowly titrate 320 ml of a FeCl3 x 6 H2O stock solution (60.00 g/l) with 10% (w/v) NaOH to pH 8.0-8.5 under agitation (use magnetic stirrer). Total amount of added NaOH approx. 80 - 100 ml. The precipitated Fe(OH)3 should be stored at room temperature overnight with surface covered with water. Thereafter, centrifuge at 2000 rpm for 5 min and discard the supernatant. Wash several times with distilled water. Resuspend the pellet in medium as described above. For storage autoclave under 100% N2 atmosphere. | |||||
| 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: | 03.05.22 |
| Source: | DSMZ |
| Taxonomic range: | Bacteria |
| Medium type: | Defined medium |
| Final pH: | 7.5 - 8.0 |
| 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] |
|---|---|---|
| Na2CO3 | 2.5 | 23.588 |
| Na2S2O5 | 0.9 | 4.734 |
| NaOH | 0.36 | 9.001 |
| MgCl2 x 6 H2O | 0.2 | 0.984 |
| KCl | 0.1 | 1.341 |
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