Role of salicylic acid in acclimation to low temperature

Pál, Magda; Gondor, Orsolya Kinga; Janda, Tibor

doi:10.1556/aagr.61.2013.2.7

Cited by 14 publications

(8 citation statements)

References 53 publications

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“…, Pál et al. ). Most of the results describing cold acclimation mechanisms are achieved using different plant species, especially model plant Arabidopsis .…”

Section: Discussionmentioning

confidence: 97%

Relationship between Polyamines and Other Cold‐induced Response Mechanisms in Different Cereal Species

Gondor

Szalai

Kovács

et al. 2015

J Agronomy Crop Science

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To find a connection between polyamines and various protective effectors involved in the development of cold tolerance, eight different cereal genotypes, including wheat, barley and oat species, were investigated during the acclimation phase to low temperature. Exposure to low temperature induced different changes in the levels of polyamines, and other signalling molecules, such as salicylic acid and abscisic acid, and of other protective compounds, namely flavonols, sugars and antioxidant enzyme activity, and in the lipid composition of certain membrane factions. The most remarkable differences were observed in the oat varieties compared to the other cereal genotypes, which was manifested in the lack of spermidine accumulation and of decrease in trans‐Δ3‐hexadecanoic acid content, in lower initial and not cold‐inducible abscisic acid content and guaiacol peroxidase activity after cold treatment. Correlation analysis revealed that spermidine shows strong positive relationship with flavonols, abscisic acid and ascorbate peroxidase, while was in negative relationship with trans‐Δ3‐hexadecanoic acid. These results suggest that spermidine may have a crucial role in the cold acclimation signalling processes in cereals.

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“…, Pál et al. ). Most of the results describing cold acclimation mechanisms are achieved using different plant species, especially model plant Arabidopsis .…”

Section: Discussionmentioning

confidence: 97%

Relationship between Polyamines and Other Cold‐induced Response Mechanisms in Different Cereal Species

Gondor

Szalai

Kovács

et al. 2015

J Agronomy Crop Science

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“…These molecules trigged the expression of the potential to tolerate stress rather than having any direct effect as a protectant. While reviewing a number of studies, Pál et al (2013) concluded that SA protects the plant from chilling stress by modifying the antioxidant capacity, changing expression rates of certain genes, and by playing a key role in acclimation process.…”

Section: Discussionmentioning

confidence: 99%

Physiological and Biochemical Mechanisms of Seed Priming-Induced Chilling Tolerance in Rice Cultivars

et al. 2016

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Rice belongs to tropical and subtropical environments and is extremely sensitive to chilling stress particularly during emergence and early stages of seedling development. Seed priming can be a good approach to enhance rice germination and stand establishment under chilling stress. The present study examined the role of different seed priming techniques viz., hydropriming, osmopriming, redox priming, chemical priming, and hormonal priming, in enhancing the chilling tolerance in rice. The most effective reagents and their pre-optimized concentrations based on preliminary experiments were used in this study. Two different rice cultivars were sown under chilling stress (18°C) and normal temperatures (28°C) in separate growth chambers. A non-primed control treatment was also maintained for comparison. Chilling stress caused erratic and delayed germination, poor seedling growth, reduced starch metabolism, and lower respiration rate, while higher lipid peroxidation and hydrogen peroxide accumulation in rice seedlings of both cultivars. Nevertheless, all the seed priming treatments effectively alleviated the negative effects of chilling stress. In addition, seed priming treatments triggered the activities of superoxide dismutase, peroxidase, and catalase, and enhanced the accumulations of glutathione and free proline in rice seedlings, which suggests that these measures help prevent the rice seedlings from chilling induced oxidative stress. Chemical priming with selenium and hormonal priming with salicylic acid remained more effective treatments for both rice cultivars under chilling stress than all other priming treatments. The better performance and greater tolerance of primed rice seedlings was associated with enhanced starch metabolism, high respiration rate, lower lipid peroxidation, and strong antioxidative defense system under chilling stress.

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“…Consequently, it may greatly delay seedlings emergence, development, establishment, and cause serious chilling injuries as well as infection diseases resulting in a significant reduction in yield and low seed quality. Chilling may also induce diverse phenotypic and physiological symptoms, leading to oxidative stress and loss of membrane integrity, which may disrupt general metabolic processes (Pál et al 2013). Moreover, the exposure to low temperature has harmful effect on photosynthesis and photosystem II (PS II) which is especially susceptible to injuries.…”

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confidence: 99%

Application of phytohormones during seed hydropriming and heat shock treatment on sunflower (Helianthus annuus L.) chilling resistance and changes in soluble carbohydrates

Górnik

Lahuta

2017

Acta Physiol Plant

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The objective of this study was to analyze the mechanism of some physiological processes accompanying acquisition of sunflower (Helianthus annuus L.) chilling resistance due to seeds hydropriming in the presence of salicylic acid, jasmonic acid, 24-epibrassinolide followed exposition of seeds to short-term heat shock treatment. The seeds were hydroprimed at 25°C in limited amounts of water or solution of salicylic or jasmonic acid at 10 -2 , 10and 10 -4 M concentration, 24-epibrassinolide at 10 -6 , 10 -8 and 10 -10 M concentration. The seeds were incubated for 2 days, subjected to short-term heat shock (45°C, 2 h) and chilled for 21 days at 0°C. Sunflower chilling susceptibility and physiological responses were evaluated according to the inhibition of radicle growth, the inhibition of the number of lateral roots formation, the activity of catalase and changes in soluble carbohydrates in seedlings developing for 72 h at 25°C. Hydropriming and short-term heat shock application explicitly reduced inhibition of roots as well as lateral roots development by allowing the germinating seeds to recover from the growthinhibiting effects of chilling. Seeds hydropriming in solutions containing salicylic acid, jasmonic acid and 24-epibrassinolide followed heat shock treatment additionally promoted the activity of catalase and sugars metabolism, which stimulated seedlings development and alleviated the decrease of F v /F m caused by chilling conditions. These beneficial effects contributed to increased resistance of sunflower seedlings to chilling stress. The present study demonstrated that the most profitable effect on reducing negative effect of chilling may be achieved by short-term heat shock applied during hydropriming in water supplemented with 24-epiBL (10 -8 and 10 -10 M) or salicylic acid (10 -3 and 10 -4 M).

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Role of salicylic acid in acclimation to low temperature

Cited by 14 publications

References 53 publications

Relationship between Polyamines and Other Cold‐induced Response Mechanisms in Different Cereal Species

Relationship between Polyamines and Other Cold‐induced Response Mechanisms in Different Cereal Species

Physiological and Biochemical Mechanisms of Seed Priming-Induced Chilling Tolerance in Rice Cultivars

Application of phytohormones during seed hydropriming and heat shock treatment on sunflower (Helianthus annuus L.) chilling resistance and changes in soluble carbohydrates

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