The Role of Salicylic Acid in Enhancing Essential Nutrient Uptake, Boosting Antioxidant Enzyme Activities, and Reducing Cell Death in Okra (Abelmoschus esculentus) under Copper Stress

May 19, 2025Journal of Plant Environmental Physiology فیزیولوژی محیطی گیاهیOpen Access

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Key Points

The study aims to explore the effects of salicylic acid on essential nutrient uptake, antioxidant enzyme activities, and cell death in okra exposed to copper stress.
Hydroponic cultivation of okra under varying copper concentrations (600 and 1200 µM) with salicylic acid treatment (500 µM)
Conducted under a completely randomized design with three replications per treatment
Physiological and biochemical activities were measured to assess impacts on nutrient uptake and oxidative stress.
Salicylic acid treatment increased uptake of essential nutrients like magnesium, iron, and zinc by 41%, 38%, and 46% respectively.
Cell death decreased by 49% and malondialdehyde and hydrogen peroxide levels decreased by 14% and 26% respectively with salicylic acid application.
Antioxidant enzyme activities rose between 60% to 90% in treated plants compared to controls.

Demonstrates that salicylic acid improves nutrient uptake and reduces cell death in okra, suggesting a method to combat copper stress.

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Arefi et al. (2025) studied this question.

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