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The Influence of Environmental Factorson Survival of Yersinia entrocolitica O:3
B. Kot1, M. Błaszczyk2, U. Kulawiec1
 
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1Department of Microbiology, Institute of Biology, University of Podlasie, 12 B. Prusa Street, 08-110 Siedlce, Poland
2Institute of Microbiology, Warsaw University, 1 Miecznikowa Street, 02-096 Warsaw, Poland
 
Pol. J. Environ. Stud. 2005;14(3):371–374
 
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ABSTRACT
The influence of the presence of bacteriophage ZD5, temperature, pH and the interaction of these factors on survival of Y. enterocolitica cells in pond water and buffers was examined. The presence of bacteriophage ZD5 and temperature have substantial influence on survival of Y. enterocolitica cells in buffers with different pHs.
The statistical analysis showed a significant influence of the presence of phage ZD5 on the decrease in the number of Y. enterocolitica cells incubated in buffers with pHs 6, 7, and 8. In the presence of phage ZD5, pH itself turned out to be of no significance because the average numbers of Y. enterocolitica cells obtained in pHs 6, 7, and 8 did not differ significantly at p≤0.05. Statistical analysis confirms significant influence of the presence of phage ZD5 on the reduction of the number of Y. enterocolitica cells in pond water at both 4oC and 20oC. The lowest average value of the number of cells was obtained at 4oC in the presence of phage ZD5, both in the tested buffers and in the pond water.
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ISSN:1230-1485