title: Study on the toxic mechanism of La3+ to Escherichia coli.
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.
authors.affiliation: School of Sciences, Wuhan University of Technology, Wuhan 430070, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Liu
authors.forename: Hongyu
authors.initials: H
authors.lastname: Xiao
authors.forename: Xi
authors.initials: X
authors.lastname: Li
authors.forename: Chaocan
authors.initials: C
authors.lastname: Zhang
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
mesh_terms: D004926:Escherichia coli / Q000187:drug effects* / Q000254:growth & development; D007811:Lanthanum / Q000633:toxicity*; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D007811:Lanthanum