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Chemical analyses and biological methods were combined to investigate oxidative stress, hormesis effect and concerned mechanism in roots of Vicia faba seedlings grown in 0–2000mgkg −1 of Pb-treated soils after germination of 20d. The results showed that U-shaped dose response curves were displayed in superoxide radical (O2-) radicals, guaiacol peroxidase (POD) and ascorbate peroxidase (APX)...
Inhibitions of bioluminescence in Photobacterium phosphoreum were determined for 20 fluorine-contained aromatics. A quantitative structure-activity relationship was developed by linear solvation energy relationship approach. Stepwise multiple linear regression shows the intrinsic molecular volume Vi/100 is not significant here. Hydrogen-bonding interaction is important in the toxic behavior of these...
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