salt-stress-tolerance
Salt-stress tolerance refers to a plant's ability to grow and maintain physiological functions under high soil salinity conditions that would otherwise inhibit water uptake and cause ion toxicity. High salinity is a major abiotic stress affecting agricultural productivity worldwide, making it a critical area of plant science research. Understanding the molecular and biochemical mechanisms underlying salt tolerance informs the development of stress-resilient crops capable of thriving in saline or drought-prone soils.
PubMed · 2026-04-10
Researchers found that spraying tiny silicon particles onto Butterfly pea plants dramatically reduced the damage caused by salty soil, restoring much of the plants' normal growth and green pigment. This low-cost, environmentally safe treatment could help farmers and gardeners grow plants in areas with high soil salinity.
High salt stress (150 mM NaCl) reduced plant height by ~51% and leaf area by ~55% compared to control plants.
Silicon nanoparticle foliar spray reversed much of this damage, increasing plant height by ~38% and leaf area by ~24% in salt-stressed plants.
Photosynthetic pigments (chlorophyll and carotenoids) that were degraded by salt were partially restored after silicon nanoparticle treatment, alongside improvements in protective compounds like proline and soluble sugars.