DSMZ 913 . THERMOTOGA PETROPHILA MEDIUM

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Equipment needed: Autoclave Filter Gassing station Hungate tubes

Final gas composition: 100 % N2 read more

Final pH: 7.0

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ml
Compound Amount Unit
Artificial sea water 750.0 ml
(NH4)2SO4 1.0 g
KH2PO4 0.5 g
Yeast extract 2.0 g
MOPS
(SIGMA)
5.0 g
Modified Wolin's mineral solution 10.0 ml
Sodium resazurin
(0.1% w/v)
0.5 ml
Wolin's vitamin solution (10x) 1.0 ml
Na2S x 9 H2O 0.3 g
Distilled water 240.0 ml
1 Dissolve ingredients except vitamins and sulfide, adjust pH to 7.0, then sparge medium with 100% N2 gas for 30 - 45 min to make it anoxic. Dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials (to 30% of volume) and autoclave. Add vitamins and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas. Vitamins should be sterilized by filtration. Adjust pH of the complete medium to 7.0, if necessary.

Artificial sea water #

1000
Compound Amount Unit
NaCl 27.70 g
MgSO4 x 7 H2O 7.00 g
MgCl2 x 6 H2O 5.50 g
KCl 0.65 g
NaBr 0.10 g
H3BO3 30.00 mg
SrCl2 x 6 H2O 15.00 mg
Citric acid 10.00 mg
KI 0.05 mg
CaCl2 x 2 H2O 2.25 g
Distilled water 1000.00 ml

Modified Wolin's mineral solution #

1000
Compound Amount Unit
Nitrilotriacetic acid 1.50 g
MgSO4 x 7 H2O 3.00 g
MnSO4 x H2O 0.50 g
NaCl 1.00 g
FeSO4 x 7 H2O 0.10 g
CoSO4 x 7 H2O 0.18 g
CaCl2 x 2 H2O 0.10 g
ZnSO4 x 7 H2O 0.18 g
CuSO4 x 5 H2O 0.01 g
AlK(SO4)2 x 12 H2O 0.02 g
H3BO3 0.01 g
Na2MoO4 x 2 H2O 0.01 g
NiCl2 x 6 H2O 0.03 g
Na2SeO3 x 5 H2O 0.30 mg
Na2WO4 x 2 H2O 0.40 mg
Distilled water 1000.00 ml
1 First dissolve nitrilotriacetic acid and adjust pH to 6.5 with KOH, then add minerals. Adjust final to pH 7.0 with KOH.