Effects of Environmental Stress on Stability of Tandem Repeats in Escherichia coli O157:H7

被引：23

作者：

Cooley, Michael B. ^{[1
]}

Carychao, Diana ^{[1
]}

Nguyen, Kimberly ^{[1
]}

Whitehand, Linda ^{[2
]}

Mandrell, Robert ^{[1
]}

机构：

[1] ARS, Produce Safety & Microbiol Res Unit, USDA, Albany, CA 94710 USA

[2] ARS, Western Reg Res Ctr, USDA, Albany, CA 94710 USA

来源：

APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 2010年 / 76卷 / 10期

关键词：

ERWINIA-AMYLOVORA STRAINS; SEQUENCE DNA REPEATS; EVOLUTIONARY ADAPTATION; STATIONARY-PHASE; NUMBER; PLASMID; O157-H7; MUTATIONS; BACTERIA; GENOMES;

D O I：

10.1128/AEM.02373-09

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

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.

引用

页码：3398 / 3400

页数：3

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