Seed Nanopriming to Mitigate Abiotic Stresses in Plants

Abstract

Abiotic stresses affect crop plants extensively during their life span, reducing productivity and threatening global food security. Stress conditions can result in failures of seed germination, uniformity, crop yield, cellular redox homeostasis, and the over-accumulation of reactive oxygen species. Seed nanopriming, pre-treating seeds with nanoparticles, is one way to overcome these limitations and successfully increase the tolerance of plants to future biotic and abiotic stress conditions. Nanopriming can play a significant role through the induction of several metabolic and physiological methods to better tolerate abiotic stresses. However, further research is needed to determine whether nanoparticles are stress promoters or stress inhibitors in plant systems. Here, we review how nanoparticle agents-based seed priming has the capacity to mitigate abiotic stresses.

Magnesium Sulfide Nanoparticles of Hordeum vulgare: Green Synthesis and their nano- nutrient impact on seed priming effect, germination, root and shoot length of Brassica nigra and Trigonella foenum-graecum

“…Nano-priming improves seed viability in poor environments (Acharya et al, 2019). Nano-priming can preserve seeds, boost germination, synchronize germination, accelerate plant growth, protect crops from abiotic and biotic stress and reduce fertilizer and insecticide use (Afagh et al, 2023;Singh et al, 2023). Figure 1 shows many agricultural uses for nano-priming seeds.…”

Comprehensive Metal-Based Nanopriming for Improving Seed Germination and Initial Growth of Field Pea (Pisum sativum L.)

“…Recently, much attention has been paid to the development of nanomaterials for use in agriculture due to their multiple functions as a promising alternative to overcome stress and improve sustainable agriculture. Previous research has shown that seed priming improves seed germination and the initial growth of many crops under optimal conditions but also under stress [10][11][12][13][14]. Many priming techniques have been used in recent decades, such as hydropriming, halopriming, osmopriming, hormopriming, and biopriming.…”

“…Many priming techniques have been used in recent decades, such as hydropriming, halopriming, osmopriming, hormopriming, and biopriming. Moreover, seed priming with nanoparticles has attracted a lot of attention due to the attributes and physical characteristics of nanoparticles such as high surface area-to-volume ratios and high reactivity, which make them suitable for agriculture applications [12]. Nanoparticles (NPs) are being employed as priming agents to improve seed quality, such as greater seed germination, seedling growth, stress resistance or tolerance, and ultimately higher yields and food nutritional value [9,[15][16][17].…”

Magnesium Sulfide Nanoparticles of Hordeum vulgare: Green Synthesis and their Nano-nutrient Impact on Seed Priming Effect, Germination, Root and Shoot Length of Brassica nigra and Trigonella foenum-graecum

“…A quiescent, fully grown seed imbibes water and the embryonic axis, usually the radicle grows into a root and shoot. Nano-priming improves seed viability in poor environments [20] and can preserve seeds, boost germination, synchronize germination, accelerate plant growth, protect crops from abiotic and biotic stress and reduce fertilizer and insecticide use [21,22].…”