Survival of E. coli O157:H12 in creek sediments after inoculation and re-inoculation

被引：2
|
作者：
Pachepsky, Y. A. [1 ]
Garzio-Hadzick, A. [2 ]
Shelton, D. R. [1 ]
Hadzick, Z. Z. [2 ]
Hill, R. L. [3 ]
机构：
[1] USDA ARS, Environm Microbial & Food Safety Lab, Beltsville, MD 20705 USA
[2] Univ Michigan, Sch Nat Resources & Environm, Ann Arbor, MI 48109 USA
[3] Univ Maryland, Dept Environm Sci & Technol, College Pk, MD 20742 USA
来源：
INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION | 2011年 / 46卷 / 3-4期
关键词：
Escherichia coli; sediment; survival; microcosm; inactivation rate; FECAL INDICATOR BACTERIA; ESCHERICHIA-COLI; WATER-QUALITY; LAKE GENEVA; PERSISTENCE; STREAMS; IMPACT; GROWTH; TEMPERATURE; SWITZERLAND;
D O I：
10.1504/IJEP.2011.045481
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This work tested the hypothesis that E. coli survival after streambed sediment inoculation does not differ significantly from survival in the same sediment after re-inoculation. The E. coli O157:H12 survived in two sediments with markedly different particle size distributions and organic matter contents in one-month-long experiments in flow-through chambers at 14 degrees C and 23 degrees C.The inactivation rates after re-inoculation were smaller than after inoculation; the differences were significant (P < 0.1) in two of four experiments. This study suggests that E. coli O157:H12 was able to adapt to the sediment environment so that its survival after re-inoculation improved.
引用
收藏
页码：234 / 245
页数：12
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