MediaDive DSMZ Digital Diversity
Content
Media Solutions Ingredients Strains Steps Gas
Search
Medium finder Solution finder Taxonomy search Isolation sources
Tools
Medium builder SPARQL endpoint Unit converter Compare media Compare solutions Prediction SOON
DSMZ

DSMZ 119b . METHANOMASSILIICOCCUS MEDIUM

Official DSMZ medium: This medium was manually curated by experts from the DSMZ.

Culture medium recipe

Vol.
×

Main sol. 119b #

ml
Equipment needed: Autoclave Hungate tubes Gassing station Centrifuge
Compound Amount Unit Conc. [g/L] Conc. [mM]
KH2PO4 0.50 g 0.498 3.66
MgSO4 x 7 H2O 0.40 g 0.398 1.616
NaCl 0.40 g 0.398 6.817
NH4Cl 0.40 g 0.398 7.448
CaCl2 x 2 H2O 0.05 g 0.05 0.339
Trace element solution SL-10 1.00 ml - -
Selenite-tungstate solution 1.00 ml - -
FeSO4 x 7 H2O solution (0.1% w/v) 2.00 ml - -
Yeast extract
(OXOID) 		1.00 g 0.996 -
Na-acetate 1.00 g 0.996 12.142
Na-formate 2.00 g 1.992 29.292
Sludge fluid 50.00 ml - -
Fatty acid mixture 20.00 ml - -
Sodium resazurin
(0.1% w/v) 		0.50 ml 5.0e-4 0.002
Methanol
(15% v/v) 		10.00 ml 7.888 246.191
NaHCO3 1.00 g 0.996 11.856
L-Cysteine HCl x H2O 0.50 g 0.498 2.835
Na2S x 9 H2O 0.50 g 0.498 2.073
Distilled water 940.00 ml - -
1 Dissolve ingredients except methanol, bicarbonate, cysteine and sulfide. Adjust pH of medium to 7.2 and sparge with 100% N2 gas for 30 - 45 min to make it anoxic. Then dispense medium under same gas atmosphere into anoxic Hungate-type tubes to 30% v/v of their volume and autoclave. Add methanol (from 15% v/v stock solution), cysteine and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas and bicarbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas mixture. Prior to use check pH of complete medium and adjust to 7.6, if necessary.
2 After inoculation, add sterile 80% H2 and 20% CO2 gas mixture to 0.5 bar overpressure. After growth becomes visible overpressure of 80% H2 and 20% CO2 gas mixture can be increased to 1 bar.
3 Note: Use 10% (v/v) as inoculum.

Trace element solution SL-10 #

1000
Solution occurs in 266 other media (first defined in Medium 320).
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.

Selenite-tungstate solution #

1000
Solution occurs in 179 other media (first defined in Medium 385).
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 - -

Sludge fluid #

1000
Solution occurs in 7 other media (first defined in Medium 119).
Compound Amount Unit Conc. [g/L] Conc. [mM]
Yeast extract 4 g 4 -
Sludge 1000 ml - -
1 Add 0.4% yeast extract to sludge from an anaerobic digester, and after gassing with nitrogen gas for a few minutes incubate it at 37°C for 24 hours. Then centrifuge the sludge at 13000 g and autoclave the resulting, clear supernatant in screw-capped vessels under nitrogen gas. The sludge fluid can be stored at 8-12°C in the dark.

Fatty acid mixture #

1000
Solution occurs in 6 other media (first defined in Medium 119).
Compound Amount Unit Conc. [g/L] Conc. [mM]
Isobutyric acid 23 ml - -
DL-2-Methylbutyric acid 27 ml - -
Valeric acid 27 ml - -
Isovaleric acid 27 ml - -
Distilled water 896 ml - -
1 Adjust pH to 7.5 with concentrated NaOH.

FeSO4 x 7 H2O solution (0.1% w/v) #

1000
Solution occurs in 13 other media (first defined in Medium 119).
Compound Amount Unit Conc. [g/L] Conc. [mM]
FeSO4 x 7 H2O 1 g 1 3.597
H2SO4
(0.1 N) 		1000 ml - -
1 The ferrous sulfate solution is not stable and should be freshly prepared.

Metadata

Last modified: 11.01.24
Source: DSMZ
Taxonomic range:  Archaea
Medium type: Complex medium
Final pH: 7.6
Equipment needed: Autoclave, Centrifuge, Gassing station, Hungate tubes
Edit in Medium builder

Gas composition

  • 66 % N2
  • 27 % H2
  • 7 % CO2

Detailed instructions for the cultivation of anaerobes including important warnings can be found in the cultivation instructions .

Associated strains

All strains for this medium: 1

Molecular composition

Compound Conc. [g/L] Conc. [mM]
Methanol 7.888 246.191
Na-formate 1.992 29.292
Na-acetate 0.996 12.142
NaHCO3 0.996 11.856
KH2PO4 0.498 3.66
Show more
CSV
JSON

Cultivation metadata from 1 strains BacDive

pH 6 - 8 1 strain
phyla 1 1 strain
oxygen anaerobe 1 strain
oxygen obligate anaerobe 1 strain
temperature mesophilic 1 strain