ArticlePloS one2025
Effect of exogenous salicylic acid spray on enhancing cold tolerance in 'Northland' blueberry plants under low-temperature stress.
Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Phytohormone-Mediated Regulation of Plant Cold Stress Tolerance: Signaling, Hormonal Crosstalk, and Translational Perspectives.International journal of molecular sciences · 2026Review
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6 authors.
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Abstract
Blueberry is a small berry with significant economic value; however, in the northern regions of China, low temperatures severely affect blueberry growth during early spring. Salicylic acid (SA), an important phytohormone, plays a crucial role in various physiological and metabolic responses induced by abiotic stress. This study utilized 2-year-old 'Northland' blueberry plants as experimental materials to investigate the physiological responses to different concentrations of SA supplementation under low-temperature stress. The results indicated that SA concentration had varying effects on enhancing the cold resistance of blueberry plants under different low-temperature conditions. At a stress temperature of 4°C, a concentration of 2.5 mM SA was most effective in increasing the content of osmoregulatory substances, enhancing the activity of antioxidant system enzymes, reducing reactive oxygen species (ROS) accumulation, up-regulating the ascorbate-glutathione (AsA-GSH) cycle, and elevating the expression level of the VcICE1 compared to other concentrations. Conversely, under low-temperature stress below 0°C (including 0°C and -4°C), supplementation with 0.5 mM SA resulted in the most significant improvement compared to the control. Therefore, the study findings suggest that the application of 0.5 mM SA enhances the cold tolerance of blueberries. However, additional validation is required to ascertain its efficacy when applied in early spring fields in northern China.
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