Emerging Roles of Salicylic Acid and Jasmonates in Plant Abiotic Stress Responses

Santisree, Parankusam; Jalli, Lakshmi Chandra Lekha; Bhatnagar‐Mathur, Pooja; Sharma, Kiran K.

doi:10.1002/9781119552154.ch17

Cited by 25 publications

(9 citation statements)

References 141 publications

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“…This reduction in APX was noticeable under non-stress treatment (−0.3 MPa) (Table 4). This result agreed with Santisree and colleagues who reported that SA is an inhibitor of APX [28]. In this case, APX reduces H2O2 cycle into the water by using ascorbate as particular electron donor.…”

Section: Resultssupporting

confidence: 92%

“…SA is produced by root cells and plays a central role in regulating various physiological processes such as growth, plant evolution, ion uptake, photosynthesis, and germination [25]. In addition, SA can be changed, increased or reduced depending on H 2 O 2 concentration [27], catalase (CAT), and peroxidase (POX) activities [28]. It is assumed that SA modulates these activities via either its direct interaction with these enzymes [29] or by controlling their synthesis [30].…”

Section: Introductionmentioning

confidence: 99%

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Physiological and Qualitative Response of Cucurbita pepo L. to Salicylic Acid under Controlled Water Stress Conditions

et al. 2022

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Limited water stress is one of the most important environmental stresses that affect the growth, quantity and quality of agronomic crops. This study was undertaken to investigate the effect of foliar applied salicylic acid (SA) on physiological responses, antioxidant enzymes and qualitative traits of Cucurbita pepo L. Plants exposed to water-stressed conditions in two years of field studies. Irrigation regimes at three soil matric potential levels (−0.3, −1.2 and −1.8 MPa) and SA at four levels (0.0, 0.5, 1.0 and 1.5 mg/L) were considered as main plot and sub-plots, respectively. The soil matric potential values (MPa) was measured just before irrigation. Results showed that under water stressed conditions alone, the amounts of malondialdehyde (MDA), hydrogen peroxide (H2O2) and ion leakage were higher compared with control treatment. However, spraying of SA under both water stress and non-stress conditions reduced the values of the above parameters. Water stress increased CAT, APX and GR enzymes activity. However foliar application of SA led to the decrease of CAT, APX and GR under all soil matric potential levels. The amount of carbohydrates and fatty acids increased with the intensity of water stress and SA modulated this response. By increasing SA concentration both in optimum and stress conditions, saturated fatty acids content decreased. According to our data, the SA application is an effective approach to improve pumpkin growth under water stress conditions.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Physiological and Qualitative Response of Cucurbita pepo L. to Salicylic Acid under Controlled Water Stress Conditions

et al. 2022

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“…Under high temperature conditions, SA supplementation lowered H 2 O 2 concentration and controlled the system of antioxidant enzymes in banana plants (Kang et al, 2003). Plants subjected to ozone stress, SA treatment significantly increased seed germination, nitrogen absorption, and root properties (Santisree et al, 2020). Spraying of SA improved antioxidant enzyme activity in pepper leaves subjected to UV-B exposure (Mahdavian et al, 2008).…”

Section: Salicylic Acidmentioning

confidence: 99%

Phytohormones regulate the abiotic stress: An overview of physiological, biochemical, and molecular responses in horticultural crops

et al. 2023

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Recent changing patterns of global climate have turned out to be a severe hazard to the horticulture crops production. A wide range of biotic and abiotic stresses often affect plants due to their sessile nature. Horticultural crop losses are mainly caused by abiotic factors such as drought, salt, heat, cold, floods, and ultraviolet radiation. For coping up with these adversities, well-developed mechanisms have been evolved in plants, which play a role in perceiving stress signals and enabling optimal growth responses. Interestingly, the use of phytohormones for suppressing the impact of abiotic stress has gained much attention in recent decades. For circumvention of stress at various levels, including physiological, molecular, as well as biochemical, a sophisticated mechanism is reported to be provided by the phytohormones, thus labeling these phytohormones a significant role in plant growth and development. Phytohormones can improves tolerance against abiotic stresses by increasing seed germination, seedling growth, leaf photosynthesis, root growth, and antioxidant enzymes and reducing the accumulation of reactive oxygen species, malonaldehyde, and electrolyte leakage. Recent discoveries highlight the significant role of a variety of phytohormones including melatonin (MEL), Gamma-aminobutyric acid (GABA), jasmonic acid (JA), salicylic acid (SA), brassinosteroids (BRs), and strigolactones (SLs) in abiotic stress tolerance enhancement of horticultural plants. Thus, current review is aimed to summarize the developmental concepts regarding role of phytohormones in abiotic-stress mitigation, mainly in horticultural crops, along with the description of recent studies which identified the role of different phytohormones in stressed environments. Hence, such a review will help in paving the path for sustainable agriculture growth via involvement of phytohormones in enhancement of abiotic stress tolerance of horticultural crops.

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“…Intensive research has shown that all abiotic stressors increase the level of endogenous SA, indicating that this simple molecule is involved in stress signalling in plants [ 16 , 169 , 170 ]. The regulatory roles of SA are mediated by various physiological processes, including growth development, photosynthesis, ion assimilation, respiration, antioxidant system, and cross-talk with other hormones [ 3 ].…”

Section: Possible Mechanisms Of Sa In Mitigating Abiotic Stressesmentioning

confidence: 99%

Salicylic Acid, a Multifaceted Hormone, Combats Abiotic Stresses in Plants

Liu

Qiu

Liu

et al. 2022

Life

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In recent decades, many new and exciting findings have paved the way to the better understanding of plant responses in various environmental changes. Some major areas are focused on role of phytohormone during abiotic stresses. Salicylic acid (SA) is one such plant hormone that has been implicated in processes not limited to plant growth, development, and responses to environmental stress. This review summarizes the various roles and functions of SA in mitigating abiotic stresses to plants, including heating, chilling, salinity, metal toxicity, drought, ultraviolet radiation, etc. Consistent with its critical roles in plant abiotic tolerance, this review identifies the gaps in the literature with regard to the complex signalling network between SA and reactive oxygen species, ABA, Ca2+, and nitric oxide. Furthermore, the molecular mechanisms underlying signalling networks that control development and stress responses in plants and underscore prospects for future research on SA concerning abiotic-stressed plants are also discussed.

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Emerging Roles of Salicylic Acid and Jasmonates in Plant Abiotic Stress Responses

Cited by 25 publications

References 141 publications

Physiological and Qualitative Response of Cucurbita pepo L. to Salicylic Acid under Controlled Water Stress Conditions

Physiological and Qualitative Response of Cucurbita pepo L. to Salicylic Acid under Controlled Water Stress Conditions

Phytohormones regulate the abiotic stress: An overview of physiological, biochemical, and molecular responses in horticultural crops

Salicylic Acid, a Multifaceted Hormone, Combats Abiotic Stresses in Plants

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