Nanosilver-Promoted Lateral Root Development in Rice is Mediated through Hydrogen Peroxide

Nanosilver (10−9 m) refers to particles comprising 20–15,000 silver atoms, exhibiting high stability and specific surface area. At present, nanosilver has been used in agricultural cultivation production. This study examined the effects of on growth development rice root systems. Study results showed that fresh weight belowground organs length both increased significantly by 5% 25%, respectively, after radicles were treated with 2 ppm for three days. However, H2O2 level reached its peak at days from treatment, but activities antioxidant enzymes CAT, APX, GR inhibited treatment. The treatment enzyme activity roots. 5 μM promoted same was observed when Moreover, ascorbic acid (AsA) is a scavenger therefore AsA added together either or H2O2. In summary, via regulation not O2•− pathway.