Salicylic acid alleviates the salt toxicity in kenaf by activating antioxidant system and regulating crucial pathways and genes

Hu, Yijie; Jiao, Yue; Nie, Jingzhi; Luo, Dengjie; Cao, Shan; Wang, Caijin; Pan, Jiao; Chen, Canni; Zhang, Hui; Wu, Qijing; Tan, Yuqi; Li, Ru; Chen, Peng

doi:10.1016/j.indcrop.2023.116691

Cited by 11 publications

(3 citation statements)

References 57 publications

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“…Moreover, SA seemed to correspondingly alleviate photosynthesis with increasing treatment time, with the 0.75 mM treatment demonstrating a crucial role in reducing the stress on chloroplasts and photosynthetic pigments. SA also helped maintain the stability of photosynthetic parameters, Pn, Tr, and SC, over the course of the 8-day study period, similar to what was observed in kenaf [39].…”

Section: Morphological Repair and Photosynthetic Physiological Allevi...supporting

confidence: 71%

Exogenous Salicylic Acid Alleviates NO2 Damage by Maintaining Cell Stability and Physiological Metabolism in Bougainvillea × buttiana ‘Miss Manila’ Seedlings

Liang,

Li,

Sheng

et al. 2023

Plants

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Exogenous substances can alleviate plant damage under adverse conditions. In order to explore whether different concentrations of salicylic acid (SA) can play a role in the resistance of Bougainvillea × buttiana ‘Miss Manila’ to nitrogen dioxide (NO2) stress and the relevant mechanisms of their effects, different concentrations of SA were applied locally under the control experiment condition of 4.0 μL·L−1 NO2, and the role of SA in alleviating injury was studied. The findings noted a significant increase in metabolic adaptations and antioxidant enzyme activities following 0.25–0.75 mM SA application (p < 0.05), except 1 mM. Superoxide dismutase (SOD) and catalase (CAT) in particular increased by 21.88% and 59.71%, respectively. Such an increase led to effective control of the reduction in photosynthetic pigments and the photosynthetic rate and protection of the structural stability of chloroplasts and other organelles. In addition, the activity of nitrate reductase (NR) increased by 83.85%, and the content of nitrate nitrogen (NO3−-N) decreased by 29.23% in nitrogen metabolism. Concurrently, a principal component analysis (PCA) and a membership function analysis further indicated that 0.75 mM SA provided the most notable improvement in NO2 resistance among the different gradients. These findings suggest that 0.25–0.75 mM SA can relieve the stress at 4 μL·L−1 NO2 injury by effectively improving the antioxidant enzyme activity and nitrogen metabolizing enzyme activity, protecting the photosynthetic system and cell structure, but 1 mM SA had the opposite effect. In the future, the specific reasons for inhibition of SA at high concentrations and the comprehensive effects of the application of other exogenous compounds should be further studied.

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Section: Morphological Repair and Photosynthetic Physiological Allevi...supporting

confidence: 71%

Exogenous Salicylic Acid Alleviates NO2 Damage by Maintaining Cell Stability and Physiological Metabolism in Bougainvillea × buttiana ‘Miss Manila’ Seedlings

Liang,

Li,

Sheng

et al. 2023

Plants

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“…In turn, the minimum value of 62.11 µg mL −1 was achieved in plants subjected to the foliar application of SA 1 mM. The benefits of salicylic acid are related to the increase in enzymatic and photosynthetic activity, in addition to maintaining the balance between the degradation and production of reactive oxygen species [20,32].…”

Section: Source Of Variation Dfmentioning

confidence: 99%

“…When comparing the carotenoid and total chlorophyll contents of plants irrigated with the highest salinity (ECw = 3.6 dS m −1 ) with those that received the ECw of 0.4 dS m −1 , there was a reduction of 24.94 and 27.89%, respectively. benefits of salicylic acid are related to the increase in enzymatic and photosynthetic activity, in addition to maintaining the balance between the degradation and production of reactive oxygen species [20,32].…”

Section: Source Of Variation Dfmentioning

confidence: 99%

Salicylic Acid as a Salt Stress Mitigator on Chlorophyll Fluorescence, Photosynthetic Pigments, and Growth of Precocious-Dwarf Cashew in the Post-Grafting Phase

Arruda

Lima

Silva

et al. 2023

Plants

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Salicylic acid is a phytohormone that has been used to mitigate the effects of saline stress on plants. In this context, the objective was to evaluate the effect of salicylic acid as a salt stress attenuator on the physiology and growth of precocious-dwarf cashew plants in the post-grafting phase. The study was carried out in a plant nursery using a randomized block design in a 5 × 4 factorial arrangement corresponding to five electrical conductivity levels of irrigation water (0.4, 1.2, 2.0, 2.8, and 3.6 dS m−1) and four salicylic acid concentrations (0, 1.0, 2.0, and 3.0 mM), with three replications. Irrigation water with electrical conductivity levels above 0.4 dS m−1 negatively affected the relative water content in the leaf blade, photosynthetic pigments, the fluorescence of chlorophyll a, and plant growth and increased electrolyte leakage in the leaf blade of precocious-dwarf cashew plants in the absence of salicylic acid. It was verified through the regression analysis that salicylic acid at a concentration of 1.1 mM attenuated the effects of salt stress on the relative water content and electrolyte leakage in the leaf blade, while the concentration of 1.7 mM increased the synthesis of photosynthetic pigments in precocious-dwarf cashew plants.

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Endophytic Bacillus spp. Mediated Plant Growth Promotion of Tomato Seedlings and Suppression of Meloidogyne incognita and Fusarium oxysporum Disease Complex

Maqsood,

Aslam,

Khaliq

et al. 2024

J Plant Growth Regul

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Salicylic acid alleviates the salt toxicity in kenaf by activating antioxidant system and regulating crucial pathways and genes

Cited by 11 publications

References 57 publications

Exogenous Salicylic Acid Alleviates NO2 Damage by Maintaining Cell Stability and Physiological Metabolism in Bougainvillea × buttiana ‘Miss Manila’ Seedlings

Exogenous Salicylic Acid Alleviates NO2 Damage by Maintaining Cell Stability and Physiological Metabolism in Bougainvillea × buttiana ‘Miss Manila’ Seedlings

Salicylic Acid as a Salt Stress Mitigator on Chlorophyll Fluorescence, Photosynthetic Pigments, and Growth of Precocious-Dwarf Cashew in the Post-Grafting Phase

Endophytic Bacillus spp. Mediated Plant Growth Promotion of Tomato Seedlings and Suppression of Meloidogyne incognita and Fusarium oxysporum Disease Complex

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