Synergistic alleviation of salinity stress in tomato: unraveling the physiological, biochemical, and antioxidant mechanisms modulated by manganese nanoparticles and chitosan.
Ordooni F, Esmaeilzadeh Bahabadi S, Rahmatizadeh R, Mohammadi Y, Easmin N
Crop Improvement
If you're growing tomatoes in raised beds amended with salty tap water or near coastal soils, these two cheap, natural-adjacent treatments could be the difference between a stressed, low-yield plant and one that actually thrives.
Salt in soil is one of the biggest threats to tomato plants — it damages their cells and chokes off their ability to make food from sunlight. Researchers tested a combination of tiny manganese particles and chitosan (made from shrimp shells) on salt-stressed tomatoes and found the duo worked better together than either did separately. The plants grew stronger, stayed greener, and were better able to defend themselves against the internal damage that salt causes.
Key Findings
The combined treatment of manganese nanoparticles and chitosan outperformed either applied alone in restoring tomato growth and photosynthetic efficiency under salinity stress.
The dual treatment significantly boosted antioxidant enzyme activity, helping plants neutralize the oxidative damage triggered by salt exposure.
Salinity stress severely limits tomato productivity through multiple mechanisms — oxidative damage, reduced photosynthesis, and inhibited growth — all of which were mitigated by the combination treatment.
chevron_right Technical Summary
Combining manganese nanoparticles with chitosan (a natural polymer from crustacean shells) significantly reduced salt damage in tomato plants, boosting growth, photosynthesis, and antioxidant defenses beyond what either treatment achieved alone.
Abstract Preview
Salinity stress severely limits tomato (Solanum lycopersicum L.) productivity by inducing oxidative damage, reducing photosynthesis, and inhibiting growth. This study investigated the individual an...
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