Glutamine in Bacterial Nutrition

Glutamine was first implicated in the growth requirements of microorganisms when it was identified as the active labile substance present in a variety of sources, which was required for growth of certain strains of hemolytic streptocci on a deficient medium (242). 

The test organism used by Mcllwain, Fildes, Gladstone, and Knight (242) was the well-known Richards strain of Strept. hemolyticus maintained at high virulence by repeated mouse-passage and kept in the intervals in rabbit blood. These were conditicfns calculated to preserve the character of the 

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