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Applied and Environmental Microbiology, July 1999, p. 3222-3225, Vol. 65, No. 7
0099-2240/99/$04.00+0

Electrophoretic Mobilities of Escherichia coli O157:H7 and Wild-Type Escherichia coli Strains

Darren A. Lytle,* Eugene W. Rice, Clifford H. Johnson, and Kim R. Fox

U.S. Environmental Protection Agency, Cincinnati, Ohio 45268

Received 11 January 1999/Accepted 6 April 1999

The electrophoretic mobilities (EPMs) of a number of Escherichia coli O157:H7 and wild-type E. coli strains were measured. The effects of pH and ionic strength on the EPMs were investigated. The EPMs of E. coli O157:H7 strains differed from those of wild-type strains. As the suspension pH decreased, the EPMs of both types of strains increased.


* Corresponding author. Mailing address: U.S. EPA, NRMRL, WSWRD, TTEB, Mail Stop B19, 26 W. Martin Luther King Dr., Cincinnati, OH 45268. Phone: (513) 569-7432. Fax: (513) 569-7172. E-mail: lytle.darren{at}epa.gov.


Applied and Environmental Microbiology, July 1999, p. 3222-3225, Vol. 65, No. 7
0099-2240/99/$04.00+0



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