Possible Interaction: Proline and Silicon

“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.”

“6 mM silicon priming triggered the mechanism of drought tolerance of PC by increasing proline and TAA levels while it decreased MDA concentrations.”

“Interestingly, the number of tillers, shoot fresh and dry biomass, shoot water content, concentration of total chlorophyll, chlorophyll a/b ratio, and the concentration of total sugars and proline in shoot increased with the addition of Si under osmotic stress conditions.”

“However, the fluoride-mediated increase in anthocyanins, flavonoids, xanthophyll, ascorbate and reduced glutathione, and osmolytes like total amino acids, proline and glycine-betaine, were all lowered in presence of silicon , together with reduced PAL and P5CS activity.”

“Morphological characters, antioxidant capacity, oxidative stress marker (MDA), stress modulators (cysteine, proline ), and enzymes related with ascorbate-glutathione cycle significantly altered during As(III) + Si treatment at both exposure periods.”

“While in the drought sensitive line, Si significantly increased production of amino acids proline and GABA which further lowered the level of GSSG to GSH ratio and thus balanced the redox homeostasis under osmotic stress.”

“ Si application also increased proline concentration under NaCl and NaCl—20% PEG, but decreased it under NaCl—10% PEG, indicating proline play an important role in G. uralensis seedling response to osmotic stress.”