Conversion of Mesophilic to Psychrophilic Bacteria

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Science  13 Dec 1968:
Vol. 162, Issue 3859, pp. 1288-1289
DOI: 10.1126/science.162.3859.1288


The minimum temperature of growth of the mesophilic bacterium Pseudomonas aeruginosa has been significantly lowered from approximately 11° to 0°C. This shift in the minimum temperature of growth was accompanied by a corresponding decrease in the maximum temperature of growth. Transfer of this genetic characteristic by a transducing phage grown on a psychrophile or by ultraviolet mutagenesis was used to accomplish these shifts in range of growth temperature.

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