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DSMZ

DSMZ 202 . DESULFONEMA MAGNUM MEDIUM

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

Culture medium recipe

Vol.
×

Main sol. 202 #

ml
Equipment needed: Gassing station Hungate tubes Autoclave Filter
Compound Amount Unit Conc. [g/L] Conc. [mM]
Solution A 952 ml - -
Solution B 10 ml - -
Solution C 1 ml - -
Solution D 10 ml - -
Solution E 20 ml - -
Solution F 10 ml - -
1 Solution A is sparged with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to reach a pH of around 6, then distributed under the same gas atmosphere into anoxic Hungate-type tubes and autoclaved. Solutions B, D, and F are autoclaved separately under 100% N2 gas. Solution E is autoclaved under 80% N2 and 20% CO2 gas mixture. Solution C is prepared under 100% N2 gas and sterilized by filtration. To complete the medium appropriate amounts of solutions B to F are added to the sterile solution A in the sequence as indicated. Final pH of the medium should be 7.0. After completion the medium should equilibrate overnight and a white precipitate should be apparent.
2 Note: Addition of 10 - 20 mg sodium dithionite per liter (e.g. from 5% (w/v) solution freshly prepared under N2 and filter-sterilized) just before inoculation may stimulate growth at the beginning. For transfers use 5 - 10% inoculum.

Solution A #

952
Compound Amount Unit Conc. [g/L] Conc. [mM]
NaCl 25.00 g 26.261 449.358
MgCl2 x 6 H2O 5.60 g 5.882 28.934
MgSO4 x 7 H2O 6.80 g 7.143 28.98
CaCl2 x 2 H2O 1.40 g 1.471 10.003
KCl 0.72 g 0.756 10.145
KH2PO4 0.14 g 0.147 1.081
NH4Cl 0.25 g 0.263 4.909
Trace element solution SL-10 1.00 ml - -
Selenite-tungstate solution 1.00 ml - -
Sodium resazurin
(0.1% w/v) 		0.50 ml 5.3e-4 0.002
Distilled water 950.00 ml - -

Solution B #

10
Compound Amount Unit Conc. [g/L] Conc. [mM]
Na-benzoate 0.6 g 60 416.369
Distilled water 10.0 ml - -

Solution C #

1
Compound Amount Unit Conc. [g/L] Conc. [mM]
Wolin's vitamin solution (10x) 1 ml - -

Solution D #

10
Compound Amount Unit Conc. [g/L] Conc. [mM]
AlK(SO4)2 x 12 H2O 0.48 g 48 101.183
Distilled water 10.00 ml - -

Solution E #

20
Compound Amount Unit Conc. [g/L] Conc. [mM]
Na2CO3 1 g 50 471.752
Distilled water 20 ml - -

Solution F #

10
Compound Amount Unit Conc. [g/L] Conc. [mM]
Na2S x 9 H2O 0.3 g 30 124.905
Distilled water 10.0 ml - -

Trace element solution SL-10 #

1000
Solution occurs in 265 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 178 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 - -

Wolin's vitamin solution (10x) #

1000
Solution occurs in 305 other media (first defined in Medium 120).
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 - -

Metadata

Last modified: 10.10.22
Source: DSMZ
Medium type: Defined medium
Final pH: 7.0
Equipment needed: Autoclave, Filter, Gassing station, Hungate tubes
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Gas composition

  • 80 % N2
  • 20 % 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: No strains found

Molecular composition

Compound Conc. [g/L] Conc. [mM]
NaCl 24.925 426.509
MgSO4 x 7 H2O 6.78 27.506
MgCl2 x 6 H2O 5.583 27.463
CaCl2 x 2 H2O 1.396 9.494
Na2CO3 0.997 9.407
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Cultivation metadata from 0 strains BacDive

phyla 1 1 strain
oxygen anaerobe 1 strain