Exogenous application of methyl jasmonate and salicylic acid increases antioxidant activity in the leaves of pistachio (Pistacia vera L. cv. Fandoughi) trees and reduces the performance of the phloem-feeding psyllid Agonoscena pistaciae

2014 ◽  
Vol 8 (6) ◽  
pp. 525-530 ◽  
Author(s):  
Mohabbat Shahabinejad ◽  
Mohammad Shojaaddini ◽  
Biancaelena Maserti ◽  
Seyed Mohammad Javad Arvin ◽  
Seyed Mehdi Seyedi
Keyword(s):  
Antioxidant Activity ◽  
Salicylic Acid ◽  
Methyl Jasmonate ◽  
Pistacia Vera ◽  
Exogenous Application ◽  
Agonoscena Pistaciae ◽  
Phloem Feeding

scholarly journals Exogenous Application of Methyl Jasmonate and Salicylic Acid Mitigates Drought-Induced Oxidative Damages in French Bean (Phaseolus vulgaris L.)

Plants ◽  
2021 ◽  
Vol 10 (10) ◽  
pp. 2066
Author(s):  
Mohammed Mohi-Ud-Din ◽  
Dipa Talukder ◽  
Motiar Rohman ◽  
Jalal Uddin Ahmed ◽  
S. V. Krishna Jagadish ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Methyl Jasmonate ◽  
Antioxidant Defense ◽  
Foliar Application ◽  
Antioxidant Defense System ◽  
French Bean ◽  
Defense System ◽  
Growth Physiology ◽  
Exogenous Application ◽  
Combined Application

Drought stress impairs the normal growth and development of plants through various mechanisms including the induction of cellular oxidative stresses. The aim of this study was to evaluate the effect of the exogenous application of methyl jasmonate (MeJA) and salicylic acid (SA) on the growth, physiology, and antioxidant defense system of drought-stressed French bean plants. Application of MeJA (20 μM) or SA (2 mM) alone caused modest reductions in the harmful effects of drought. However, combined application substantially enhanced drought tolerance by improving the physiological activities and antioxidant defense system. The drought-induced generation of O2●− and H2O2, the MDA content, and the LOX activity were significantly lower in leaves when seeds or leaves were pre-treated with a combination of MeJA (10 μM) and SA (1 mM) than with either hormone alone. The combined application of MeJA and SA to drought-stressed plants also significantly increased the activities of the major antioxidant enzymes superoxide dismutase, catalase, peroxidase, glutathione peroxidase, and glutathione-S-transferase as well as the enzymes of the ascorbate–glutathione cycle. Taken together, our results suggest that seed or foliar application of a combination of MeJA and SA restore growth and normal physiological processes by triggering the antioxidant defense system in drought-stressed plants.

scholarly journals Elicitation of Medicinal Plants In Vivo—Is It a Realistic Tool? The Effect of Methyl Jasmonate and Salicylic Acid on Lamiaceae Species

Horticulturae ◽  
2021 ◽  
Vol 8 (1) ◽  
pp. 5
Author(s):  
Wafae Kandoudi ◽  
Péter Radácsi ◽  
Beáta Gosztola ◽  
Éva Zámboriné Németh
Keyword(s):  
Antioxidant Activity ◽  
Salicylic Acid ◽  
Essential Oil ◽  
Methyl Jasmonate ◽  
Total Phenolics ◽  
Secondary Compounds ◽  
Stress Reactions ◽  
In Vivo Experiments ◽  
Scientific Experiments

Salicylic acid (SA) and methyl jasmonate (MeJa) are prominent phytohormones that are involved in stress reactions. Both compounds may influence the biosynthesis of secondary compounds; however, scientific experiments in vivo are rare and contradictive. This paper reports on a study on the elicitation of volatiles and total phenolics (TPC) by MeJa and SA. The subjects were four Lamiaceae species studied in open field conditions in Budapest (Hungary). According to the results, both elicitors provoked specific responses in each plant species depending on the dosage applied and the parameter studied; 2 mM of SA stimulated essential oil (EO) accumulation in marjoram and peppermint, while in hyssop 0.1 mM was optimal. MeJa proved to be effective only in marjoram and in basil. In marjoram, cis-sabinene hydrate was decreased and in hyssop, isopinocamphone was increased by both dosages of SA. In peppermint, pulegone content was reduced by 2 mM SA, but no significant change of the major components of basil EO was detected. SA was successful in increasing TPC and antioxidant activity (AC) in three of the experimental species, but not in hyssop. In marjoram, only 0.1 mM induced TPC and eventually AC, while in peppermint and basil both dosages of SA were effective. Optimalisation of the treatments is suggested in further in vivo experiments.

scholarly journals Preharvest Treatment of Methyl Jasmonate and Salicylic Acid Increase the Yield, Antioxidant Activity and GABA Content of Tomato

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2293
Author(s):  
Min Woo Baek ◽  
Han Ryul Choi ◽  
Lee Yun Jae ◽  
Ho-Min Kang ◽  
Ok-Hwan Lee ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Ascorbic Acid ◽  
Salicylic Acid ◽  
Methyl Jasmonate ◽  
Total Phenolics ◽  
Antioxidant Activities ◽  
Total Yield ◽  
Soluble Solids ◽  
Meja Treatment ◽  
Β Carotene

This study investigated the effect of preharvest treatment of 0.25 mM methyl jasmonate (MeJA) and 0.5 mM salicylic acid (SA) on quality parameters, most important secondary metabolites (lycopene, β-carotene, ascorbic acid, total phenolics, and flavonoids), antioxidant activities, and amino acid contents of ‘Kumato’ tomato. Treatments with MeJA and SA led to an increase of total yield per plant and were effective in maintaining the fruit quality attributes such as firmness, total soluble solids, titratable acidity, and Brix acid ratio at two maturity stages (S1 and S2). In addition, lycopene, β-carotene, ascorbic acid, total phenolics, and flavonoids were significantly higher in the treated fruit than in the control. Moreover, γ-aminobutyric acid (GABA), essential amino acids, and antioxidant activity increased due to MeJA and SA treatments at both stages, especially with MeJA treatment at S2. Overall results also showed the effectiveness of MeJA treatment than SA on improving the yield and nutritional quality of ‘Kumato’ tomato.

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