Effects of Environmental Stress on Stability of Tandem Repeats in Escherichia coli O157:H7
- 15 May 2010
- journal article
- Published by American Society for Microbiology in Applied and Environmental Microbiology
- Vol. 76 (10), 3398-3400
- https://doi.org/10.1128/aem.02373-09
Abstract
Multilocus variable-number tandem-repeat analysis (MLVA) is used for source tracking Escherichia coli O157:H7 in agricultural environments. Tandem repeats were stable after limited replication but changed after exposure to irradiation, elevated temperatures, and starvation conditions. The pO157 plasmid was frequently lost under these stress conditions. Environmental stresses may increase phylogenetic diversity as measured by MLVA.Keywords
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