DSMZ 339a . WILKINS-CHALGREN ANAEROBE BROTH (N2/CO2)

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Selected strain: Succinatimonas hippei DSM 22608

This strain uses the standard medium without modifications.


Growth conditions: anaerobic 37 °C
Equipment needed: Autoclave Filter Gassing station Hungate tubes

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

Final pH: 6.8

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ml
Compound Amount Unit
dehydrated Wilkins-Chalgren medium
(Oxoid CM0643)
33.0 g
Sodium resazurin
(0.1% w/v)
0.5 ml
L-Cysteine HCl 0.3 g
D-Glucose 5.0 g
Na2CO3 1.0 g
Distilled water 1000.0 ml
1 Dissolve 33.0 g/l dehydrated Wilkins-Chalgren medium (Oxoid CM0643) in distilled water and add 0.5 ml/l Na-resazurin solution (0.1% w/v), bring to the boil and cool to room temperature while sparging with 80% N2 and 20% CO2 gas mixture. Add L-cysteine-HCL x H2O (0.3 g/l), dispense the medium into anoxic Hungate-type tubes or serum vials and autoclave. After autoclaving supplement medium with 5.0 g/l D-glucose added from a sterile anoxic stock solution sterilized by filtration. Adjust pH of medium to 6.8 with a sterile anoxic stock solution of Na2CO3 (5% w/v) prepared under 80% N2 and 20% CO2 gas atmosphere.
2 Note: In case resazurin is not colourless addition of 10 - 20 mg sodium dithionite per liter (e.g. from 5% (w/v) solution, freshly prepared under N2 and filter-sterilized) can be used to completely reduce the medium.