Study on the toxic mechanism of La3+ to Escherichia coli |
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| Authors: | Liu Peng Xiao Hongyu Li Xi Zhang Chaocan Liu Yi |
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| Affiliation: | (1) School of Sciences, Wuhan University of Technology, 430070 Wuhan, China;(2) School of Material Science and Technology, Wuhan University of Technology, 430070 Wuhan, China;(3) College of Chemistry and Molecular Sciences, Wuhan University, China |
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| Abstract: | The toxic mechanism of La3+ to Escherichia coli is investigated by detecting the concentration change of La3+ in E. coli cells growing in La3+-containing medium. Stimulatory action and inhibitory effect of La3+ in different concentrations can be attributed to the permeability alteration of the cell. Low concentration of La3+ increases the nutrition absorbability of the cells from the cultures as a result of increased cell permeability, and high concentration of La3+ causes the accumulation of La3+ in cells, resulting in the toxic effects on the E. coli cells. |
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| Keywords: | La3+ toxic effect permeability absorption |
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