Abstract
When grown in a minimal medium and suspended for 2 hours in distilled water, seawater, phosphate buffer or a polyphosphate solution,E. coli MC4100 cells with high alkaline phosphatase activity survived in seawater for longer periods than cells with low or no activity. However, mutant cells totally deprived of alkaline phosphatase activity held in phosphate-containing media before transfer to seawater showed survival almost as high as the wild type strain, indicating that alkaline phosphatase activity is not the only factor influencing survival. Alkaline phosphatase activity also increased the protection of cells provided by glycine betaine. Survival was enhanced when cells were preincubated in the presence of phosphate or polyphosphate. Thus, the transfer of cells in wastewater could influence their subsequent survival in seawater.
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Gauthier, M.J., Flatau, G.N. & Clément, R.L. Influence of phosphate ions and alkaline phosphatase activity of cells on survival ofEscherichia coli in seawater. Microb Ecol 20, 245–251 (1990). https://doi.org/10.1007/BF02543880
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DOI: https://doi.org/10.1007/BF02543880