DSMZ 778 . THERMOTERRABACTERIUM MEDIUM

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Equipment needed: Autoclave Filter Gassing station Hungate tubes

Final gas composition: 80 % N2 20 % CO2 read more

Final pH: 6.8

Select a strain (optional):

ml
Compound Amount Unit
KH2PO4 0.33 g
NH4Cl 0.33 g
KCl 0.33 g
MgCl2 x 6 H2O 0.33 g
Trace element solution SL-10 1.00 ml
Selenite-tungstate solution 1.00 ml
NiCl2 x 6 H2O
(0.1% w/v)
0.20 ml
Yeast extract 1.00 g
Na2-9,10-anthraquinone-2,6-disulfonate
(TCI A0308)
8.25 g
NaHCO3 2.50 g
CaCl2 x 2 H2O 0.33 g
Glycerol 2.60 ml
Wolin's vitamin solution (10x) 1.00 ml
Distilled water 1000.00 ml
1 Dissolve ingredients (except bicarbonate, calcium chloride, glycerol and vitamins), boil medium for some minutes to dissolve the anthraquinone, then cool under 80% N2 and 20% CO2 gas atmosphere to room temperature. Add solid bicarbonate and adjust pH to 6.8, dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Add calcium chloride, glycerol and vitamins from sterile anoxic stock solutions prepared under 100% N2 gas atmosphere. Vitamins are sterilized by filtration. Adjust pH of complete medium to 6.8, if necessary.

Trace element solution SL-10 #

1000
Compound Amount Unit
HCl
(25%)
10.0 ml
FeCl2 x 4 H2O 1.5 g
ZnCl2 70.0 mg
MnCl2 x 4 H2O 100.0 mg
H3BO3 6.0 mg
CoCl2 x 6 H2O 190.0 mg
CuCl2 x 2 H2O 2.0 mg
NiCl2 x 6 H2O 24.0 mg
Na2MoO4 x 2 H2O 36.0 mg
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
Compound Amount Unit
NaOH 0.5 g
Na2SeO3 x 5 H2O 3.0 mg
Na2WO4 x 2 H2O 4.0 mg
Distilled water 1000.0 ml