期刊
CHEMOSPHERE
卷 100, 期 -, 页码 190-193出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2013.11.032
关键词
Fluoride; Escherichia coli; Growth; GFPuv; Expression
资金
- China National Natural Science Foundation [31172376, 31001089]
To determine the effects of fluoride on bacterial growth, as well as upon its gene/protein expression, we grew Escherichia coli expressing GFPuv (E. coli-GFPuy) in Luria Bertani medium at different concentrations of NaF, 0, 0.1 mM, 1 mM, 10 mM and 100 mM. Results showed that E. coli-pGFPuv growth and expression of mRNA and protein of GFPuy were increased at 0.1 and 1 mM, but were inhibited at 10 and 100 mM, which demonstrated that fluoride has a classic rise/fall response of inducing E. coli-GFPuv growth and gene and protein expression of GFPuv at 1 mM. Our observation suggests that the effect of fluoride on bacterial growth may be from regulation of mRNA expression. (C) 2013 Elsevier Ltd. All rights reserved.
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