DSMZ 311 . SPOROMUSA MEDIUM (BETAINE)

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Selected strain: Sporomusa sp. DSM 21435

This strain uses the standard medium without modifications.


Growth conditions: anaerobic 35 °C
Equipment needed: Autoclave Filter Gassing station Hungate tubes

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

Final pH: 7.0

Select a strain (optional):

ml
Compound Amount Unit
NH4Cl 0.50 g
MgSO4 x 7 H2O 0.50 g
CaCl2 x 2 H2O 0.25 g
NaCl 2.25 g
FeSO4 x 7 H2O
(0.1% w/v in 0.1 N H2SO4)
2.00 ml
Trace element solution SL-10 1.00 ml
Selenite-tungstate solution 1.00 ml
Yeast extract 2.00 g
Casitone 2.00 g
Betaine x H2O 6.70 g
Sodium resazurin
(0.1% w/v)
0.50 ml
K2HPO4 0.35 g
KH2PO4 0.23 g
Na2CO3 1.00 g
Wolin's vitamin solution (10x) 1.00 ml
L-Cysteine HCl x H2O 0.30 g
Na2S x 9 H2O 0.30 g
Distilled water 1000.00 ml
1 Dissolve ingredients (except phosphates, carbonate, vitamins, cysteine and sulfide) and sparge medium with 80% N2 and 20% CO2 gas mixture for 30 - 45 min to make it anoxic. Dispense medium under same gas atmosphere into anoxic Hungate-type tubes or serum vials and autoclave. Add phosphates, vitamins (sterilized by filtration), cysteine and sulfide to the medium after autoclaving from sterile 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 pH 7.0, if necessary.

Trace element solution SL-10 #

1000
Compound Amount Unit
HCl
(25%)
10.0 ml
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 990.0 ml
1 First dissolve FeCl2 in the HCl, then dilute in water, add and dissolve the other salts. Finally make up to 1000.00 ml.

Selenite-tungstate solution #

1000
Compound Amount Unit
NaOH 0.5 g
Na2SeO3 x 5 H2O 3.0 mg
Na2WO4 x 2 H2O 4.0 mg
Distilled water 1000.0 ml