DSMZ 457 . MINERAL MEDIUM (BRUNNER)

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* Medium for Arthrobacter sp. DSM 12418

With 1 g/l dimethoate from a filter sterilized stock solution


Growth conditions: 30 °C
Equipment needed: Autoclave

Final pH: 6.9

Select a strain (optional):

ml
Compound Amount Unit
Na2HPO4 2.44 g
KH2PO4 1.52 g
(NH4)2SO4 0.50 g
MgSO4 x 7 H2O 0.20 g
CaCl2 x 2 H2O 0.05 g
Trace element solution SL-4 10.00 ml
Dimethoate 1.00 g/l
Distilled water 1000.00 ml
1 Adjust pH to 6.9.
2 Prepare a separate solution of the phosphates and autoclave separately. Combine the two solutions after cooling.
3 Rehydrate and cultivate lyophilized cells in complex medium (e.g. medium 1, 220 or 535). After this reactivation, cultivate in mineral medium 457 with the appropriate carbon source.

Trace element solution SL-4 #

1000
Compound Amount Unit
EDTA 0.5 g
FeSO4 x 7 H2O 0.2 g
Trace element solution SL-6 100.0 ml
Distilled water 900.0 ml

Trace element solution SL-6 #

1000

Main sol. 1 #

1000
Compound Amount Unit
Peptone 5 g
Meat extract 3 g
Agar , for solid medium 15 g
Distilled water 1000 ml
1 Adjust pH to 7.0.
2 For Bacillus strains the addition of 10.0 mg MnSO4 x H2O is recommended for sporulation.

Main sol. 220 #

1000
Compound Amount Unit
Casein peptone 15 g
Soy peptone 5 g
NaCl 5 g
Agar 15 g
Distilled water 1000 ml
1 Adjust pH to 7.3. Medium is identical with Tryptone Soya Agar (Oxoid CM 131).

Main sol. 535 #

1000
Compound Amount Unit
Trypticase soy broth
(BBL 11768, Oxoid CM129 or Merck 5459)
30 g
Agar 20 g
Distilled water 1000 ml
1 pH 7.3
2 Autoclave at 121°C for 15 min.