Exogenous salicylic acid signal reveals an osmotic regulatory role in priming the seed germination of Leymus chinensis under salt-alkali stress

2021 ◽  
pp. 104498
Author(s):  
Chen Hongna ◽  
Tao Leyuan ◽  
Shi Junmei ◽  
Han Xiaori ◽  
Cheng Xianguo
Keyword(s):  
Salicylic Acid ◽  
Seed Germination ◽  
Regulatory Role ◽  
Leymus Chinensis ◽  
Alkali Stress ◽  
Exogenous Salicylic Acid

scholarly journals MES7 Modulates Seed Germination via Regulating Salicylic Acid Content in Arabidopsis

Plants ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 903
Author(s):  
Wenrui Gao ◽  
Yan Liu ◽  
Juan Huang ◽  
Yaqiu Chen ◽  
Chen Chen ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Salt Stress ◽  
Abiotic Stress ◽  
Seed Germination ◽  
Environmental Conditions ◽  
Acid Content ◽  
Hydrolytic Enzyme ◽  
Stress Conditions ◽  
Transitional Period ◽  
Highly Sensitive

Seed germination is an important phase transitional period of angiosperm plants during which seeds are highly sensitive to different environmental conditions. Although seed germination is under the regulation of salicylic acid (SA) and other hormones, the molecular mechanism underlying these regulations remains mysterious. In this study, we determined the expression of SA methyl esterase (MES) family genes during seed germination. We found that MES7 expression decreases significantly in imbibed seeds, and the dysfunction of MES7 decreases SA content. Furthermore, MES7 reduces and promotes seed germination under normal and salt stress conditions, respectively. The application of SA restores the seed germination deficiencies of mes7 mutants under different conditions. Taking together, our observations uncover a MeSA hydrolytic enzyme, MES7, regulates seed germination via altering SA titer under normal and abiotic stress conditions.

scholarly journals Exogenous salicylic acid and cytokinin alter sugar accumulation, antioxidants and membrane stability of faba bean

2018 ◽  
Vol 69 (1) ◽  
pp. 86-96 ◽  
Author(s):  
Samira Samea-Andabjadid ◽  
Kazem Ghassemi-Golezani ◽  
Safar Nasrollahzadeh ◽  
Nosratollah Najafi
Keyword(s):  
Salicylic Acid ◽  
Faba Bean ◽  
Membrane Stability ◽  
Sugar Accumulation ◽  
Exogenous Salicylic Acid

scholarly journals Effect of Exogenous Salicylic Acid on the Physiological and Biochemical Processes of Ligustrum lucidum during Natural Cold Acclimation

HortScience ◽  
2018 ◽  
Vol 53 (6) ◽  
pp. 859-864
Author(s):  
Yang Yang ◽  
Runfang Zhang ◽  
Pingsheng Leng ◽  
Zenghui Hu ◽  
Man Shen
Keyword(s):  
Salicylic Acid ◽  
Cold Acclimation ◽  
Freezing Tolerance ◽  
Soluble Sugar ◽  
Northern China ◽  
Freezing Injury ◽  
Ligustrum Lucidum ◽  
Glossy Privet ◽  
Exogenous Salicylic Acid ◽  
Physiological And Biochemical

The evergreen Ligustrum lucidum (glossy privet) suffers from freezing injury in northern China, where there are short growing seasons and early fall frost events. To investigate the influence of exogenous salicylic acid (SA) application on the natural cold acclimation of glossy privet, physiological and biochemical changes in glossy privet seedlings subjected to SA treatments at four concentrations (0, 150, 250, and 350 mg·L−1) were evaluated from Sept. to Dec. 2016. The optimum application concentrations were between 250 and 350 mg·L−1, which led to better freezing tolerance during natural cold acclimation. The improved freezing tolerance under exogenous SA application was associated with the accumulation of chlorophyll, proline, soluble protein, and soluble sugar, and the regulations of gibberellic acid (GA) and abscisic acid (ABA). Salicylic acid treatments started a cascade of steps for advancing the cold acclimation process of glossy privet. We suggest that exogenous SA application may be used on glossy privet grown in northern China.

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