| Autor: |
Ishii, Y., Kurisu, F., Kasuga, I., Furumai, H. |
| Předmět: |
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| Zdroj: |
Letters in Applied Microbiology; Feb2021, Vol. 72 Issue 2, p133-140, 8p |
| Abstrakt: |
Escherichia coli normally cannot grow in the environment. One environmental stress that prevents E. coli growth may be the competition for growth substrates with co‐existing micro‐organisms. In this study, the growth substrates of E. coli were screened by high‐resolution mass spectrometry and compared with those of indigenous bacteria in river water. In an incubation experiment, E. coli multiplied in sterilized river water, but did not multiply when indigenous micro‐organisms were present in the water. By analysing dissolved organic matter in the river water before and after E. coli growth, 35 compounds were identified as putative growth substrates of E. coli. Among them, 33 compounds were also identified as putative growth substrates of indigenous bacteria. These results indicate that E. coli and indigenous bacteria compete for organic substrates in river water, which could suppress the growth of E. coli. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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