Possible Interaction: Hydrogen Peroxide and Silicon

“The oxida-tion of PSi triggered by hydrogen peroxide (H2O2) weakens FRET effect and decays PSi's fluorescence, causing ratiometric fluorescence change from red (PSi) to blue (CQDs).”

“The apoptotic and necrotic cell death induced by H2O2 was almost totally reversed by Si (50-500 ng/mL), indicating that it down-regulates both processes in H2O2 treated cells.”

“ Si addition suppressed the increase of malondialdehyde concentration while encouraged increase of H2O2 concentration in plants attacked by BPH.”

“ Silicon provision decreased H2O2 content and lowered lipid peroxidation in the leaves of the treated plants.”

“On the other hand, Si significantly decreased the presence of both superoxide and hydrogen peroxide in roots that suffered from As toxicity.”

“Supplementation of Si to Ni-treated plants enhanced the leaf area, Chl content, RWC, CAT and POX (only in younger leaf) activities and decreased LWL, the contents of Pro (in younger leaf), H2O2 (roots) and AsA, lipid peroxidation and POX and SOD activities.”

“In comparison with single As/Cd treatment, Si supply reduced H2O2 content, increased total soluble protein content and enhanced glutathione S-transferase activity in shoots.”

“Furthermore, lipid peroxidation, electrolyte leakage, levels of superoxide, and hydrogen peroxide were decreased with silicon treatments.”

“ Silicon stimulated growth, proline content and activities of various antioxidant biomolecules and enzymes, … Ca2+, K+ and N, endogenous H2S and L-DES activity, but reduced H2O2 and MDA contents, membrane leakage and leaf B. Silicon-induced B tolerance was further enhanced by 0.2 mM NaHS, a H2S donor.”

“Moreover, Si treatments enhanced the activities of antioxidant enzymes (SOD, POD, and CAT) while it reduced the MDA and H2O2 contents in both cultivars under stress conditions.”