I am conducting some microbiological experiments in proline metabolism. In addition to the prolineness strains of Escherichia
coli developed here, I would like to examine other proline requiring strains of E. coli from outside sources.
Any cultures of these strains which you could forward to me, as well as any information as to other possible sources, would
be gratefully appreciated.
This department will gladly reimburse you for any expense incurred in the handling or shipment of such cultures.