METABOLIC CHARACTERIZATION OF THE GENUS BRUCELLA IV. 3: Correlation of Oxidative Metabolic Patterns and Susceptibility to Brucella Bacteriophage, Type abortus, Strain

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Meyer, Margaret E. (University of California, Davis). Metabolic characterization of the genus Brucella. IV. Correlation of oxidative metabolic patterns and susceptibility to Brucella bacteriophage, type abortus, strain 3. J. Bacteriol. 82:950–953. 1961.—A total of 212 strains of brucellae that had been identified as Brucella melitensis, B. abortus, B. suis, or B. neotomae by their oxidative metabolism were tested for their susceptibility to Brucella bacteriophage, type abortus, strain 3. It was demonstrated that only those organisms that displayed the oxidative metabolic pattern that is singular for B. abortus were susceptible to this strain of phage, irrespective of their identity by the conventional methods usually employed for differentiating members of this genus. Strains of organisms that display the features of B. melitensis by the conventional determinative methods, but display the metabolic characteristics of B. abortus, are susceptible to lysis by this phage. These organisms are in fact B. abortus. Strains of organisms that display the features of B. melitensis by the classical methods, and display the metabolic pattern of B. melitensis, are not lysed by this phage. These organisms are B. melitensis. The conclusions then were drawn that B. abortus is the only species that can serve as host for this strain of phage, that oxidative metabolic patterns accurately identify the species in this genus, and that by the conventional methods of differentiation, many strains of B. abortus are misidentified as B. melitensis.

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