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Will S. griseus grow on Columbia blood agar?

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#1 tretol



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Posted 20 July 2014 - 06:19 AM



I got S. griseus from DSMZ. I dissolved the pellet in LB medium containing 0,3% Tween-80 and stored at 4°C for 2 days. I put onto Columbia sheep blood agar two days ago and on another agar medium (yeast extract, meat extract, glucose, NaCl, Peptone, Tryptone) and incubated at 30°C.


Will the bacteria grow under these conditions? Till now there is no visible growth. I am asking because on the DSMZ home page they recommend GYM medium (glucose, yeast extract, malt extract, CaCO3). Two of these ingredients I do not have inside my agars.

I think it should not make a difference and I have incubate for at least 10 days until I can see growth, but I am not sure since I have not used this bacterium berfore.



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