DSMZ 722 . OCEANIDESULFOVIBRIO MEDIUM

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Equipment needed: Autoclave Filter Gassing station Hungate tubes

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

Final pH: 7.0 - 7.2

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ml
Compound Amount Unit
Na2SO4 3.0 g
KCl 0.3 g
NH4Cl 0.3 g
KH2PO4 0.2 g
CaCl2 x 2 H2O 0.1 g
NaCl 50.0 g
MgCl2 x 6 H2O 3.3 g
MgSO4 x 7 H2O 1.6 g
Yeast extract 0.1 g
Trace element solution SL-11 1.0 ml
Sodium resazurin
(0.1% w/v)
0.5 ml
Na2CO3 1.5 g
Na-DL-lactate 2.5 g
Seven vitamins solution 1.0 ml
Na2S x 9 H2O 0.2 g
Distilled water 1000.0 ml
1 Dissolve ingredients except carbonate, lactate, vitamins and sulfide. Sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic, then dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Add lactate, vitamins and sulfide from sterile anoxic stock solutions prepared under 100% N2 gas and carbonate from a sterile anoxic stock solution prepared under 80% N2 and 20% CO2 gas atmosphere. Vitamins should be sterilized by filtration. The pH of the complete medium should be 7.0 - 7.2.

Trace element solution SL-11 #

1000
Compound Amount Unit
Na2-EDTA x 2 H2O 5.2 g
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 1000.0 ml
1 Dissolve EDTA in 800 ml distilled water, adjust pH to 7 using 2 N NaOH and add ferrous chloride. After ferrous chloride has dissolved add other compounds. Finally adjust pH to 6.0 and bring volume to 1000 ml.