DSMZ 391 . METHANOCOCCUS VOLTAE MEDIUM

What is this page?
Equipment needed: Autoclave Gassing station Hungate tubes

Final gas composition: 80 % H2 20 % CO2 read more

Final pH: 7.2

Select a strain (optional):

ml
Compound Amount Unit
Mineral solution 2xW 500.0 ml
Modified Wolin's mineral solution 10.0 ml
LIP-solution 50.0 ml
Na-acetate 1.0 g
Sodium resazurin
(0.1% w/v)
0.5 ml
TYC-solution 50.0 ml
Na2CO3 1.5 g
L-Cysteine HCl x H2O 0.5 g
Na2S x 9 H2O 0.5 g
Distilled water 400.0 ml
1 Dissolve ingredients except TYC solution, carbonate, cystein and sulfide. Sparge medium with 80% H2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic, then dispense under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Before use add TYC solution, cysteine 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 mixture. Adjust pH of complete medium to 7.2, if necessary.

Mineral solution 2xW #

1000
Compound Amount Unit
NaCl 40.00 g
MgCl2 x 6 H2O 5.60 g
MgSO4 x 7 H2O 0.70 g
KCl 0.68 g
NH4Cl 0.50 g
K2HPO4 0.28 g
CaCl2 x 2 H2O 0.28 g
Distilled water 1000.00 ml

LIP-solution #

1000
Compound Amount Unit
L-Leucine 5.0 g
L-Isoleucine 10.0 g
Pantothenate 0.1 g
Distilled water 1000.0 ml
1 May be stored frozen without sterilization.

TYC-solution #

1000
Compound Amount Unit
Casamino acids
(BD Bacto)
100 g
Yeast extract
(OXOID)
50 g
L-Tryptophan 1 g
Distilled water 1000 ml
1 Prepare and autoclave under 100% N2 gas.

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.