THE ELECTROPHORETIC MIGRATION VELOCITY OF ESCHERICHIA COLI AFTER CULTIVATION ON MEDIA OF VARIOUS COMPOSITION II. : Observations Following Changes in Inorganic Constituents.
نویسندگان
چکیده
Although numerous workers, especially Northrop and DeKruif (1922) and Winslow, et al. (1923 and 1926), have studied the influence of electrolytes upon the electrophoretic migration velocity of bacteria by washing them free of their metabolic products and suspending them in solutions of the electrolytes, little attention has been given to the effect upon electrophoretic potential of electrolytes incorporated in the culture medium. This is more than a little strange, for it is well known that certain electrolytes, when added to the culture medium, will induce bacterial dissociation or variation which may be recognized readily by alterations in virulence, toxigenicity, agglutinability, etc., alterations which in turn may be accompanied by measurable differences in the electrophoretic migration velocity of the organisms. These considerations suggested that it would be profitable to determine the effect upon the electrophoretic migration velocity of bacteria by varying the electrolyte content of the culture medium. In a previous report (1938) we showed
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ورودعنوان ژورنال:
- Journal of bacteriology
دوره 35 4 شماره
صفحات -
تاریخ انتشار 1938