Scientists used bacteria from the deep sea to create tiny selenium particles that help tomato plants survive salty soil — a major farming challenge worldwide. The nanoparticles reduced plant stress, boosted water retention, and strengthened antioxidant defenses without harming germination.
1
Selenium nanoparticles at 5 mg/mL caused no toxic effects on tomato germination across salt concentrations of 50, 100, and 150 mM NaCl
2
Under high salt stress (150 mM NaCl), SeNP-treated seedlings showed increased fresh and dry weights along with higher proline and soluble sugar accumulation, improving relative water content
3
SeNPs reduced hydrogen peroxide levels and boosted antioxidant enzyme activity (catalase and guaiacol peroxidase), directly countering salt-induced oxidative damage
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