Effects of Suspended Particulates on the Frequency of Transduction among Pseudomonas aeruginosa in a Freshwater Environment.

Applied and Environmental Microbiology
S Ripp, R V Miller

Abstract

Transduction has been shown to play a significant role in the transfer of plasmid and chromosomal DNA in aquatic ecosystems. Such ecosystems contain a multitude of environmental factors, any one of which may influence the transduction process. It was the purpose of this study to show how one of these factors, particulate matter, affects the frequency of transduction. In situ transduction rates were measured in lake water microcosms containing either high or low concentrations of particulate matter. The microcosms were incubated in a freshwater lake in central Oklahoma. Transduction frequencies were found to be enhanced as much as 100-fold in the presence of particulates. Our results suggest that aggregations of bacteriophages and bacterial cells are stimulated by the presence of these suspended particulates. This aggregation increases the probability of progeny phages and transducing particles finding and infecting new host cells. Consequently, both phage production and transduction frequencies increase in the presence of particulate matter.

References

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Citations

Mar 25, 2008·Applied and Environmental Microbiology·Erin J BiersMary Ann Moran
Dec 23, 2003·Environmental Microbiology·Markus G Weinbauer, Fereidoun Rassoulzadegan
Dec 2, 2008·Journal of Applied Microbiology·J Jofre
Mar 2, 2010·Applied Microbiology and Biotechnology·Matthias Brigulla, Wilfried Wackernagel
May 4, 2011·Microbial Biotechnology·Maite MuniesaJuan Jofre
Mar 8, 2000·Microbiology and Molecular Biology Reviews : MMBR·K E Wommack, R R Colwell
Aug 4, 1998·Applied and Environmental Microbiology·S C Jiang, J H Paul
Apr 1, 1996·Microbiology·Saranga P KidambiRobert V Miller
May 26, 2010·Environmental Science & Technology·Vasiliki I Syngouna, Constantinos V Chrysikopoulos
May 5, 2004·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·G van den EedeA Wilcks

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