Possible Interaction: Nitric Oxide and Silicon

“Moreover, the combined application of Si and NO reduced Cd health risk index in maize more effectively than either treatment alone.”

“The combined application of Si and NO triggered a significant response in maize, increasing plant growth and reducing Cd uptake, accumulation, translocation and bioaccumulation factors under Cd stress.”

“The grain Cd concentration was decreased by 66 % in the Si and NO combined treatment than Cd treatment.”

“This study provided new evidence that Si and NO have a strong joint effect on alleviating the adverse effects of Cd toxicity by decreasing Cd uptake and accumulation.”

“The results indicate that the intracellular concentration of ROS and nitrogen oxide (NO) on Si is higher than those on the control group by about 38% and 12%.”

“All together, the data indicate that Si has capability of alleviating Meth herbicide stress in wheat seedlings but it appears that endogenous NO has a positive role in this endeavour of Si.”

“ Silicon also up-regulates the synthesis of hydrogen sulfide (H2S) or acts synergistically with nitric oxide (NO), consequently conferring stress tolerance in plants.”

“Interestingly, reports suggesting the role of silicon in increasing the number of nodules, enhancing nitrogen fixation, and also the combined effect of silicon and NO may indicate a possibility of their interaction in mediating microbial communication underground.”

“These findings suggest that NO and Si synergistically modulate secondary metabolism through upregulation of related gene expression and enzyme activities under both non-stress and Cu stress conditions.”

“Furthermore, plants treated with co-application of NO and Si showed improved growth, gas attributes and decreased As uptake under As regimes.”

“The current study highlights that NO and Si synergistically interact to mitigate detrimental effects of As stress through reducing As uptake.”

“However, … Si … NO alone as well as combined significantly alleviated Cd toxicity in wheat seedlings by lowering the accumulation of Cd and oxidative stress markers and … leaf and root structures, which are collectively responsible for a better photosynthetic rate under Cd toxicity, and hence an improved growth was noticed.”

“Particularly, the application of Si and NO in combination lowered the oxidative stress markers via up-regulating the antioxidant defense system (particularly AsA-GSH cycle) suggesting the increased efficacy of Si+NO against the Cd toxicity in wheat seedlings as compared to their alone treatments.”

“Therefore, this study investigates the effects of the combined application of Si and NO in the mitigation of Cd toxicity in wheat seedlings.”

“The silicon replicas were photoluminescent, and exhibited rapid changes in impedance upon exposure to gaseous nitric oxide (suggesting a possible application in microscale gas sensing).”