Physiological Response of Salicylic Acid on Physiological Characteristics of Orychophragmus Violaceus Seeding under Salt Stress

Considering the detrimental effects of salt stress on the physiological mechanisms of plants in terms of growth, development and productivity, intensive efforts are underway to improve plant tolerance to salinity. Hence, an experiment was conducted to assess the impact of the foliar application of salicylic acid (SA; 0.5 mM) on the physiological traits of fenugreek (Trigonellafoenum-graecum L.) plants grown under three salt concentrations (0, 75, and 150 mM NaCl). An increase in salt concentration generated a decrease in the chlorophyll content index (CCI); however, the foliar application of SA boosted the CCI. The malondialdehyde content increased in salt-stressed fenugreek plants, while a reduction in content was observed with SA. Likewise, SA application induced an accumulation of proline, total phenolics, and flavonoids. Moreover, further increases in total free amino acids and shikimic acid were observed with the foliar application of SA, in either control or salt-treated plants. Similar results were obtained for ascorbate peroxidase, peroxidase, polyphenol oxidase, and catalase with SA application. Hence, we concluded that the foliar application of SA ameliorates salinity, and it is a growth regulator that improves the tolerance of fenugreek plants under salt stress.

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Effect of three different types of biochars on eco-physiological response of important agroforestry tree species under salt stress

International Journal of Phytoremediation ◽

10.1080/15226514.2021.1901849 ◽

2021 ◽

pp. 1-11

Author(s):

Muhammad Talha Bin Yousaf ◽

Muhammad Farrakh Nawaz ◽

Muhammad Zia ur Rehman ◽

Sadaf Gul ◽

Ghulam Yasin ◽

...

Keyword(s):

Salt Stress ◽

Tree Species ◽

Physiological Response ◽

Different Types

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Modulation of salt stress effects on the growth, physio-chemical attributes and yields of Phaseolus vulgaris L. plants by the combined application of salicylic acid and Moringa oleifera leaf extract

Scientia Horticulturae ◽

10.1016/j.scienta.2015.07.003 ◽

2015 ◽

Vol 193 ◽

pp. 105-113 ◽

Cited By ~ 40

Author(s):

Mostafa M. Rady ◽

Gamal F. Mohamed

Keyword(s):

Salicylic Acid ◽

Salt Stress ◽

Phaseolus Vulgaris ◽

Leaf Extract ◽

Moringa Oleifera ◽

Phaseolus Vulgaris L ◽

Stress Effects ◽

Combined Application ◽

Chemical Attributes

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MES7 Modulates Seed Germination via Regulating Salicylic Acid Content in Arabidopsis

Plants ◽

10.3390/plants10050903 ◽

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.

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Effects of Trehalose on Physiological Characteristics of Waxy Maize under Salt Stress

2021 International Conference on Society Science (ICoSS2021) ◽

10.38007/proceedings.0001961 ◽

2021 ◽

Keyword(s):

Salt Stress ◽

Physiological Characteristics ◽

Waxy Maize

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The Salt-Stress Response of the Transgenic Plum Line J8-1 and Its Interaction with the Salicylic Acid Biosynthetic Pathway from Mandelonitrile

International Journal of Molecular Sciences ◽

10.3390/ijms19113519 ◽

2018 ◽

Vol 19 (11) ◽

pp. 3519 ◽

Cited By ~ 2

Author(s):

Agustina Bernal-Vicente ◽

Daniel Cantabella ◽

Cesar Petri ◽

José Hernández ◽

Pedro Diaz-Vivancos

Keyword(s):

Salicylic Acid ◽

Salt Stress ◽

Biosynthetic Pathway ◽

In Vitro Assays ◽

Photochemical Quenching ◽

Plant Responses ◽

Enzymatic Antioxidants ◽

Chlorophyll Content And Fluorescence ◽

Salt Stress Response

Salinity is considered as one of the most important abiotic challenges that affect crop productivity. Plant hormones, including salicylic acid (SA), are key factors in the defence signalling output triggered during plant responses against environmental stresses. We have previously reported in peach a new SA biosynthetic pathway from mandelonitrile (MD), the molecule at the hub of the cyanogenic glucoside turnover in Prunus sp. In this work, we have studied whether this new SA biosynthetic pathway is also present in plum and the possible role this pathway plays in plant plasticity under salinity, focusing on the transgenic plum line J8-1, which displays stress tolerance via an enhanced antioxidant capacity. The SA biosynthesis from MD in non-transgenic and J8-1 micropropagated plum shoots was studied by metabolomics. Then the response of J8-1 to salt stress in presence of MD or Phe (MD precursor) was assayed by measuring: chlorophyll content and fluorescence parameters, stress related hormones, levels of non-enzymatic antioxidants, the expression of two genes coding redox-related proteins, and the content of soluble nutrients. The results from in vitro assays suggest that the SA synthesis from the MD pathway demonstrated in peach is not clearly present in plum, at least under the tested conditions. Nevertheless, in J8-1 NaCl-stressed seedlings, an increase in SA was recorded as a result of the MD treatment, suggesting that MD could be involved in the SA biosynthesis under NaCl stress conditions in plum plants. We have also shown that the plum line J8-1 was tolerant to NaCl under greenhouse conditions, and this response was quite similar in MD-treated plants. Nevertheless, the MD treatment produced an increase in SA, jasmonic acid (JA) and reduced ascorbate (ASC) contents, as well as in the coefficient of non-photochemical quenching (qN) and the gene expression of Non-Expressor of Pathogenesis-Related 1 (NPR1) and thioredoxin H (TrxH) under salinity conditions. This response suggested a crosstalk between different signalling pathways (NPR1/Trx and SA/JA) leading to salinity tolerance in the transgenic plum line J8-1.

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