Methyl jasmonate regulates protective enzyme activities to improve resistance to Venturia nashicola in pear (Pyrus bretschneideri Rehd.)

2020 ◽  
Vol 158 (3) ◽  
pp. 789-797
Author(s):  
Shuyi Jing ◽  
Yi Liu ◽  
Huifang Liu ◽  
Na Li ◽  
Liulin Li
Keyword(s):  
Methyl Jasmonate ◽  
Enzyme Activities ◽  
Protective Enzyme ◽  
Venturia Nashicola

scholarly journals Effect of Methyl Jasmonate on antioxidative enzyme activities and on the contents of ROS and H2O2 in Ricinus communis leaves

2010 ◽  
Vol 22 (3) ◽  
pp. 151-158 ◽  
Author(s):  
Alexandra Martins dos Santos Soares ◽  
Thiago Freitas de Souza ◽  
Tânia Jacinto ◽  
Olga Lima Tavares Machado
Keyword(s):  
Methyl Jasmonate ◽  
Enzyme Activities ◽  
Ricinus Communis ◽  
Antioxidative Enzyme ◽  
Antioxidative Enzyme Activities

scholarly journals Effect of Methyl Jasmonate on Phenolic Accumulation in Wounded Broccoli

Molecules ◽  
2019 ◽  
Vol 24 (19) ◽  
pp. 3537 ◽  
Author(s):  
Yuge Guan ◽  
Wenzhong Hu ◽  
Aili Jiang ◽  
Yongping Xu ◽  
Rengaowa Sa ◽  
...  
Keyword(s):  
Methyl Jasmonate ◽  
Enzyme Activities ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Total Phenolic ◽  
Phenylpropanoid Metabolism ◽  
Antioxidant Power ◽  
Meja Treatment ◽  
Coenzyme A Ligase ◽  
Key Enzyme

In order to find an efficient way for broccoli to increase the phenolic content, this study intended primarily to elucidate the effect of methyl jasmonate (MeJA) treatment on the phenolic accumulation in broccoli. The optimum concentration of MeJA was studied first, and 10 μM MeJA was chosen as the most effective concentration to improve the phenolic content in wounded broccoli. Furthermore, in order to elucidate the effect of methyl jasmonate (MeJA) treatment on phenolic biosynthesis in broccoli, the key enzyme activities of phenylpropanoid metabolism, the total phenolic content (TPC), individual phenolic compounds (PC), antioxidant activity (AOX) and antioxidant metabolism-associated enzyme activities were investigated. Results show that MeJA treatment stimulated phenylalanine ammonia-lyase (PAL), cinnamate 4-hydroxylase (C4H), and 4-coumarin coenzyme A ligase (4CL) enzymes activities in phenylpropanoid metabolism, and inhibited the activity of polyphenol oxidase (PPO), and further accelerated the accumulation of the wound-induced rutin, caffeic acid, and cinnamic acid accumulation, which contributed to the result of the total phenolic content increasing by 34.8% and ferric reducing antioxidant power increasing by 154.9% in broccoli. These results demonstrate that MeJA in combination with wounding stress can induce phenylpropanoid metabolism for the wound-induced phenolic accumulation in broccoli.

Effects of sound stimulation on protective enzyme activities and peroxidase isoenzymes of chrysanthemum

2003 ◽  
Vol 27 (1) ◽  
pp. 59-63 ◽  
Author(s):  
Wang Xiujuan ◽  
Wang Bochu ◽  
Jia Yi ◽  
Liu Defang ◽  
Duan Chuanren ◽  
...  
Keyword(s):  
Enzyme Activities ◽  
Sound Stimulation ◽  
Peroxidase Isoenzymes ◽  
Protective Enzyme

The effect of methyl jasmonate on enzyme activities in wheat genotypes infected by the crown and root rot pathogen Fusarium culmorum

2015 ◽  
Vol 37 (11) ◽  
Author(s):  
Parastoo Motallebi ◽  
Vahid Niknam ◽  
Hassan Ebrahimzadeh ◽  
Sattar Tahmasebi Enferadi ◽  
Majid Hashemi
Keyword(s):  
Methyl Jasmonate ◽  
Enzyme Activities ◽  
Root Rot ◽  
Fusarium Culmorum ◽  
Wheat Genotypes ◽  
Crown And Root Rot
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