Lipoxygenase in Caragana jubata responds to low temperature, abscisic acid, methyl jasmonate and salicylic acid

Gene ◽  
2011 ◽  
Vol 483 (1-2) ◽  
pp. 49-53 ◽  
Author(s):  
Pardeep Kumar Bhardwaj ◽  
Jagdeep Kaur ◽  
Ranbir Chander Sobti ◽  
Paramvir Singh Ahuja ◽  
Sanjay Kumar
2021 ◽  
Vol 923 (1) ◽  
pp. 012010
Author(s):  
Ekhlas Meteab Ahmed Marir

Abstract This experiment was conducted in the Plant Tissue Culture Laboratory, College of Agricultural Engineering Sciences, University of Baghdad for the period from September/2018 to July 2019. The induced callus from the cotyledon leaves of seedlings of the Spilanthes acmella plant was used in order to know the effect of chemical catalysts and Starmedium was added to Glutamine (250, 300, 350) mgters on the chemical content. After 4 weeks of planting, the primary callus was planted at 150 mg in the nutrient medium supplemented with auxin,4-dichlorophenoxy acetic acid (2,4-D) 2.0 mg.L−1 and cytokinin Benzyl Adenine (BA) 0.5 mg.L−1 at constant concentrations in the first five medium, to which the catalyst was added salicylic acid at concentrations (25, 50, 75) μmol). The second medium was added to methyl jasmonate at concentrations (25, 50, 75 μmol) of the third medium was added to Casein hydrolysate at concentrations (25, 50, 75 μmol) of the fourth medium was added to Glutamine (250, 300, 350) mg. L−1. The results showed that the treatment of nutritional medium with high concentrations of stimulants and primer led to a significant increase in the content of plant tissues (the induced callus from the cotyledons) of total carbohydrates, the percentage of protein, the content of callus from the carotene pigment and content of proline, while the comparison treatment was the most effective in vegetable tissue contents of total carbohydrates and protein percentage and content of callus from the carotene pigment and proline, as well as this confirms that all treatments led to a positive and direct increase of chemical compounds content of plant tissues of chemical traits, especially in the treatment of Salicylic acid, methyl jasmonate, casein hydrolysate, glutamine, and phenylalanine (75 micromoles, 75 micromoles, 75 micromoles, 350 mg.L−1, 150 micromoles) respectively, were followed by the treatments of Salicylic acid, methyl jasmonate, casein hydrolysate, glutamine and phenylalanine (50 μmol, 50 μmol, 50 μmol, 300 mg.L−1, 100 μmol), respectively. The aim of this study is to know the effect of Salicylic acid, methyl jasmonate, casein hydrolysate, glutamine, and phenylalanine in the induction and differentiation of callus of cotyledon leaves cotyledon leaves of Spilanthes acmella seedlings on some chemical traits in vitro.


2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Zhi-hong Huang ◽  
Zhi-li Wang ◽  
Bao-lin Shi ◽  
Dong Wei ◽  
Jian-xin Chen ◽  
...  

Salicylic acid, jasmonic acid, methyl salicylate, and methyl jasmonate are important phytohormones and defensive signaling compounds, so it is of great importance to determine their levels rapidly and accurately. The study usesUlmus pumilaleaves infected byTetraneura akinire Sasakiat different stages as materials; after extraction with 80% methanol and ethyl acetate and purification with primary secondary amine (PSA) and graphitized carbon blacks (GCB), the contents of signal compounds salicylic acid, jasmonic acid, methyl salicylate, and methyl jasmonate were determined by GC-MS. The results showed that the level of salicylic acid, jasmonic acid, methyl salicylate, and methyl jasmonate increased remarkably inU. pumilaonce infected byT. akinire Sasaki, but the maximums of these four compounds occurred at different times. Salicylic acid level reached the highest at the early stage, and jasmonic acid level went to the maximum in the middle stage; by contrast, change of content of methyl salicylate and methyl jasmonate was the quite opposite.


Horticulturae ◽  
2021 ◽  
Vol 7 (12) ◽  
pp. 568
Author(s):  
Omaima S. Darwish ◽  
Marwa R. Ali ◽  
Ebtihal Khojah ◽  
Bassem N. Samra ◽  
Khaled M. A. Ramadan ◽  
...  

The short shelf-life and loss of bioactive compounds of strawberry fruit are the most important problems during strawberry refrigerated storage. This study was carried out to evaluate the effect of the pre-harvest foliar application of salicylic acid (SA) (2 and 4 mM), abscisic acid (ABA) (0.25 and 0.50 mM), and methyl jasmonate (MeJA) (0.25 and 0.50 mM) three times, 10 d apart, at fruit development and ripening stages on storage ability and bioactive compounds of strawberry fruit (cv. Festival) stored at 4 °C for 12 d. Our results showed that fruit obtained from both concentrations of ABA and 0.25 mM MeJA was firmer and had higher total soluble solids (TSS) than fruit from non-treated plants. However, all previous applications had no significant effect on weight loss, pH, or color. Applications of 4 mM SA and 0.25 mM MeJA conserved fruit from ascorbic acid (AsA) loss compared to control at the end of the storage period. In addition, all pre-harvest applications remained higher in total phenolic compounds (TPC) and anthocyanin contents compared to controls at the last storage period. Hence, the pre-harvest application of SA, ABA, and MeJA could be used to conserve TPC and anthocyanin as well as the quality of strawberry fruits during refrigerated storage.


2013 ◽  
Vol 72 (2) ◽  
pp. 311-322 ◽  
Author(s):  
Ramesh K. Saini ◽  
Muthu K. Akithadevi ◽  
Parvatam Giridhar ◽  
Gokare A. Ravishankar

Abstract - Isoflavone content in soybean seeds was enhanced by the elicitor-mediated approach under field conditions through the floral application of abiotic elicitors-salicylic acid, methyl jasmonate and biotic elicitors-Aspergillus niger and Rhizopus oligosporus. Among isoflavones, daidzein and glycitein were found to be highly responsive to elicitors, with an increase of 53.7% and 78.7%, respectively as compared to control. Highest total isoflavone content (1276.4 mg g-1 of seeds) was observed upon the administration of 0.1 mMsalicylic acid, which is 92.7% higher than in control. This study would be valuable for augmentation of the isoflavone content in soybean seeds in field grown plants for better nutraceutical potential.


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