JCM 1090 . MMJS MEDIUM 2

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Equipment needed: Autoclave Filter

Final pH: 6.2

Select a strain (optional):

ml
Compound Amount Unit
NaCl 20.00 g
K2HPO4 0.14 g
CaCl2 x 2 H2O 1.00 g
MgSO4 x 7 H2O 3.40 g
MgCl2 x 6 H2O 4.18 g
NH4Cl 0.25 g
KCl 0.33 g
NiCl2 x 6 H2O 0.50 mg
Na2SeO3 x 5 H2O 0.50 mg
Na2WO4 x 2 H2O 0.10 mg
(NH4)2Ni(SO4)2 x 6 H2O 10.00 mg
Trace minerals 10.00 ml
Distilled water 1000.00 ml
1 Mix components and adjust pH to 5.5. Distribute the medium into culture vessels (e.g., 20 ml in 60 ml-serum bottles) under a stream of N2, seal with butyl rubber stoppers and add Autoclave. After cooling, add per liter the following solutions (filter-sterilized):
Trace vitamins 1.00 ml
NaHCO3
(8%)
3.75 ml
Na2S2O3
(1 M)
5.00 ml
2 Replace the gas phase with N2-CO2-O2 (94:5:1, v/v/v, 100 kPa). Check final pH to be around 6.2.

Trace minerals #

1000
Compound Amount Unit
Nitrilotriacetic acid 1.50 g
MgSO4 x 7 H2O 3.00 g
MnSO4 x n H2O 0.50 g
NaCl 1.00 g
FeSO4 x 7 H2O 0.10 g
CoSO4 x 7 H2O 0.10 g
CaCl2 x 2 H2O 0.10 g
ZnSO4 x 7 H2O 0.10 g
CuSO4 x 5 H2O 0.01 g
AlK(SO4)2 0.01 g
H3BO3 0.01 g
Na2MoO4 x 2 H2O 0.01 g
Distilled water 1000.00 ml
1 Dissolve nitrilotriacetic acid and adjust pH to 6.5 with KOH solution. Then proceed to add minerals. Adjust final pH to 7.0.