Effect of MnxOy Nanoparticles Stabilized with Methionine on Germination of Barley Seeds (Hordeum vulgare L.)

Abstract

The aim of this research was to study the effect of MnxOy nanoparticles stabilized with L-methionine on the morphofunctional characteristics of the barley (Hordeum vulgare L.) crop. MnxOy nanoparticles stabilized with L-methionine were synthesized using potassium permanganate and L-methionine. We established that MnxOy nanoparticles have a diameter of 15 to 30 nm. According to quantum chemical modeling and IR spectroscopy, it is shown that the interaction of MnxOy nanoparticles with L-methionine occurs through the amino group. It is found that MnxOy nanoparticles stabilized with L-methionine have positive effects on the roots and seedling length, as well as the seed germination energy. The effect of MnxOy nanoparticles on Hordeum vulgare L. seeds is nonlinear. At a concentration of 0.05 mg/mL, there was a statistically significant increase in the length of seedlings by 68% compared to the control group. We found that the root lengths of samples treated with MnxOy nanoparticle sols with a concentration of 0.05 mg/mL were 62.8%, 32.7%, and 158.9% higher compared to samples treated with L-methionine, KMnO4, and the control sample, respectively. We have shown that at a concentration of 0.05 mg/mL, the germination energy of seeds increases by 50.0% compared to the control sample, by 10.0% compared to the samples treated with L-methionine, and by 13.8% compared to the samples treated with KMnO4.

Effect of MnO2 Nanoparticles Stabilized with Cocamidopropyl Betaine on Germination and Development of Pea (Pisum sativum L.) Seedlings

“…Thus, the results obtained revealed the growth stimulation effect of MnO 2 NPs at concentrations of 0.1–10 mg/L. The inhibitory effect of 100 mg/L MnO 2 NPs can be associated with the potential toxic effect on pea seeds at higher concentrations, which is in line with the results of our previous work [ 26 ] and the reports of another researcher [ 27 , 29 , 30 , 52 , 53 , 54 ].…”

“…Among these forms of Mn studied, nanoscale forms emerge as the most promising due to their high activity and lower consumption [ 25 ]. It was discovered in a previous work that 0.05 mg/L Mn x O y nanoparticles (NPs) increase the germination energy of barley seeds by 50%, while the seedling length increases by 68% when compared with the control [ 26 ]. Kasote et al [ 27 ] reported that ≤40 mg/L Mn 2 O 3 NPs significantly influenced the phenolic acid and phytohormone profiles of watermelon seedlings, leading to increased crop productivity.…”

CuO Nanoparticles and Microaggregates: An Experimental and Computational Study of Structure and Electronic Properties

“…Regarding nanoparticle synthesis, two families of protocols have been developed so far, i.e., top-down and bottom-up methodologies, that are alternatively chosen depending on the starting reactants and on the desired target NP size/morphology. The latter process, often described as self-assembly, involves the aggregation of smaller fragments to form the desired structure, through different types of reactions, e.g., co-precipitation, sol–gel, hydrothermal–solvothermal, microemulsion, and chemical vapor [ 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 ]. In contrast, the top-down approach involves the etching or fragmentation of bulk precursors to form smaller structures, and includes mechanic actions like exfoliation, pulverization, grinding, milling, crushing, as well as laser ablation [ 55 ].…”