Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4979100 | Journal of Hazardous Materials | 2018 | 22 Pages |
Abstract
The excess of halide ions (Fâ, Clâ, Brâ, Iâ) can cause adverse effects. Earlier studies demonstrated time-dependent stimulations of organic salts with halide ions on photobacteria. Therefore, inorganic ones with halide ions (e.g., NaX, X = Fâ, Clâ, Brâ, Iâ) were assumed to cause similar effects. In the present study, Vibrio fischeri was exposed to NaX. Results showed that the contents of favin mono-nucleotide (FMN), nicotinamide adenine dinucleotide (NADH), and nicotinamide adenine dinucleotide phosphate (NADPH) were stimulated by NaX with a time-dependent fashion. The maximum stimulations on FMN at 24 h were 172%, 168%, 211% and 298% of the control (p < 0.05) in NaF, NaCl, NaBr and NaI, respectively, with an order of NaF â NaCl < NaBr < NaI. The maximum stimulations on NAD(P)H at 24 h followed similar orders. Similar time-dependent stimulatory effects were observed in the FMN:NAD(P)H reaction catalyst (luciferase, in the form of expression levels of lux A and lux B), adenosine triphosphate and the expression levels of its regulating gene adk. The luminescent stimulations were significantly higher than the biochemical ones despite of similar time-dependence and stimulation order among NaX. The overall results showed a common hormetic pattern in sodium halide salts.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Health and Safety
Authors
Zhenyang Yu, Jing Zhang, Meifang Hou,