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DSMZ

DSMZ 1092 . THERMOSULFIDIBACTER MEDIUM

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

Culture medium recipe

Vol.
×

Main sol. 1092 #

ml
Equipment needed: Filter Autoclave Gassing station
Compound Amount Unit Conc. [g/L] Conc. [mM]
Sea Salt
(SIGMA, must not show signs of caking) 		30.0 g 29.91 -
Wolfe's mineral elixir 1.0 ml - -
Sodium resazurin
(0.1% w/v) 		0.5 ml 5.0e-4 0.002
Sulfur
(powdered) 		3.0 g 2.991 93.266
NaHCO3 2.5 g 2.493 29.67
Yeast extract 2.0 g 1.994 -
Wolin's vitamin solution (10x) 2.0 ml - -
Na2S x 9 H2O 0.5 g 0.499 2.076
Distilled water 1000.0 ml - -
1 Dissolve ingredients (except sulfur, bicarbonate, yeast extract, vitamins and sulfide) and sparge medium with 80% H2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under same gas atmosphere into anoxic serum vials (e.g., Balch-type tubes) containing already the appropriate amount of sulfur, only to 30% of their volume to allow for a large headspace. Autoclave at 110°C for 20 min. Add yeast extract, vitamins and sulfide form 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. The vitamin solution should be sterilized by filtration. Adjust pH of the complete medium to 7.0-7.2.
2 After inoculation pressurize vessels with sterile 80% H2 and 20% CO2 gas mixture to 2 bar overpressure.

Wolfe's mineral elixir #

1000
Solution occurs in 22 other media (first defined in Medium 792).
Compound Amount Unit Conc. [g/L] Conc. [mM]
MgSO4 x 7 H2O 30.00 g 30 121.716
MnSO4 x H2O 5.00 g 5 29.583
NaCl 10.00 g 10 171.116
FeSO4 x 7 H2O 1.00 g 1 3.597
CoCl2 x 6 H2O 1.80 g 1.8 13.863
CaCl2 x 2 H2O 1.00 g 1 6.802
ZnSO4 x 7 H2O 1.80 g 1.8 6.26
CuSO4 x 5 H2O 0.10 g 0.1 0.401
AlK(SO4)2 x 12 H2O 0.18 g 0.18 0.379
H3BO3 0.10 g 0.1 1.617
Na2MoO4 x 2 H2O 0.10 g 0.1 0.413
(NH4)2Ni(SO4)2 x 6 H2O 2.80 g 2.8 7.089
Na2WO4 x 2 H2O 0.10 g 0.1 0.303
Na2SeO4 0.10 g 0.1 0.529
Distilled water 1000.00 ml - -
1 First adjust pH to 1.0 with diluted H2SO4, then add and dissolve the salts.

Wolin's vitamin solution (10x) #

1000
Solution occurs in 308 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: 29.04.25
Source: DSMZ
Taxonomic range:  Bacteria
Medium type: Complex medium
Final pH: 7.0 - 7.2
Equipment needed: Autoclave, Filter, Gassing station
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Gas composition

  • 80 % H2
  • 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: 1

Molecular composition

Compound Conc. [g/L] Conc. [mM]
Sea Salt 29.91 -
Sulfur 2.991 93.266
NaHCO3 2.493 29.67
Yeast extract 1.994 -
Na2S x 9 H2O 0.499 2.076
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Cultivation metadata from 1 strains BacDive

pH 4 - 6 1 strain
pH 6 - 8 1 strain
phyla 1 1 strain
oxygen anaerobe 1 strain
temperature thermophilic 1 strain