JCM 669 . MAGNETOSPIRILLUM MEDIUM (B)

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Equipment needed: Autoclave

Final pH: 6.7

Select a strain (optional):

ml
Compound Amount Unit
KH2PO4 0.28 g
NaNO3 0.12 g
Sodium thioglycolate 0.05 g
Sodium tartrate 0.37 g
Sodium succinate 0.37 g
Sodium acetate 0.05 g
Trace vitamins 10.00 ml
Ferric quinate solution 2.00 ml
Mineral salt solution 1.00 ml
Distilled water 1000.00 ml
1 Adjust pH to 6.75 with NaOH.

Ferric quinate solution #

100
Compound Amount Unit
FeCl3 x 6 H2O 0.45 g
Quinic acid 0.19 g
Distilled water 100.00 ml
1 Dissolve and autoclave at 121C for 15 min.
2 Comment: For strain JCM 21281, good growth can be obtained in semisolid medium (1.0 g/L agar).

Mineral salt solution #

1000
Compound Amount Unit
MgSO4 x 7 H2O 29.70 g
Nitrilotriacetic acid 10.00 g
CaCl2 x 2 H2O 3.34 g
FeSO4 x 7 H2O 99.00 mg
Na2MoO4 x 2 H2O 13.00 mg
Metals ''44'' 50.00 ml
Distilled water 950.00 ml
1 Add nitrilotriacetic acid to 500 ml of distilled water. Dissolve by adjusting pH to 6.5 with KOH. Add the remaining components and distilled water. Readjust pH to 7.2.