The effects of methyl jasmonate and salicylic acid on the production of secondary metabolites in organ culture of Ziziphora persica

2019 ◽  
Vol 138 (3) ◽  
pp. 437-444 ◽  
Author(s):  
Elham Zare-Hassani ◽  
Rouhollah Motafakkerazad ◽  
Jafar Razeghi ◽  
Morteza Kosari-Nasab
2019 ◽  
Vol 46 (9) ◽  
pp. 787 ◽  
Author(s):  
Hourieh Tavakoli ◽  
Nasibeh Tavakoli ◽  
Foad Moradi

Stevia rebaudiana Bertoni has been promoted for having sweet leaves as well as pharmaceutical and industrial properties. The sweet taste of Stevia leaves is due to the presence of steviol glycosides (a group of diterpene glycosides) found in a small number of plants. In the biosynthetic pathway of steviol glycosides (SGs), 15 enzymes that express the genes are associated with these enzymes under the influence of the elicitors. Due to the individuality of the stevia and few studies on the biosynthesis pathway of SGs, this paper attempted to investigate the effects of some of the elicitors, including methyl jasmonate (MeJA), salicylic acid (SA), auxins (Aux), cytokinins (CKs), gibberellins (GAs) and its inhibitors including paclobutrazol (BPZ) and chloroquate (CCC)), on the responsible genes for the biosynthesis of SGs. Some of these elicitors, including MeJA, SA and GA have great potential in increasing secondary metabolites. Moreover, the biosynthetic pathway of GAs and SGs are shared till ent-kaurenoic acid (ent-KA) biosynthesis, which raises the question of whether this hormone and its inhibitors are effective in the SGs biosynthesis.


2021 ◽  
Author(s):  
Rouhollah Motafakkerazad ◽  
Vahideh Soltani-Elired ◽  
Sarieh Tarigholizadeh ◽  
Morteza Kosari-Nasab

Abstract The impact of Salicylic acid (SA) and Methyl jasmonate (MJ) on growth, and essential oil quantity and quality in organ culture of Acinos graveolens were investigated. In the present study, nodal segments were used as explants for shoot production using MS media with BA and NAA. Afterward, they were transferred to liquid MS media culture containing SA and MJ with 50, 100, and 150 µM and their combinations (SA25+MJ25, SA50+MJ25, SA25+MJ50, and SA50+MJ50). After three weeks, samples were collected to assess the morphological and some growth parameters, quantitative changes in pigment amounts as well as volatile contents. Accordingly, almost all treatments led to a notable decrease in growth parameters in comparison with control. The highest amount of Chl a, b and carotenoids were achieved by MJ100, SA50, and SA25+MJ50, respectively. In addition, GC-MS results indicated 38 components of volatile products mainly alkane hydrocarbons and sesquiterpenes. The major identified compounds were Decane, Eicosane, and Germacrene D. Altogether, results asserted that SA25+MJ25 and SA100 were more efficient in the enhancement of essential oil content among all treatments.


2021 ◽  
Vol 6 (1) ◽  
pp. 31-40
Author(s):  
Yustiny Andaliza Hasibuan ◽  
Diah Ratnadewi ◽  
Zainal Alim Mas’ud

Cinchona alkaloids are known as antimalaria and anti-arrhythmic. Due to the long waiting time to harvest, cell culture technology is a challenge. This study aimed to determine the effects of elicitors, filtrate of two strains of endophytic fungi and methyl jasmonate (MeJA), in cell suspension culture of Cinchona ledgeriana on quinine and quinidine production. The cells were cultured for seven weeks in woody plant (WP) media treated with either of those elicitors in various concentrations. The cells growth was observed and the alkaloids were analyzed by HPLC. Cells treated with MeJA failed to grow that led to the cell biomass insufficiency for alkaloids determination.  It indicates that the cells are quite sensitive to even low concentration of MeJA that hampered the growth. Cells treated with the filtrate of Diaporthe sp. M13-Millipore filtered (S2M) gave the least cell biomass but presented the highest content of both alkaloids. Diaporthe sp. strain M-13 is stronger as elicitor than M-23 for this plant species. Filtrate of non-virulent fungi can elevate the biosynthesis of alkaloids. This reconfirms that cultured cells are capable to produce secondary metabolites and the productivity can be increased by using an appropriate elicitor.  


2006 ◽  
Vol 54 (11) ◽  
pp. 3887-3895 ◽  
Author(s):  
Da-Peng Li ◽  
Yun-Feng Xu ◽  
Li-Ping Sun ◽  
Li-Xia Liu ◽  
Xiao-Li Hu ◽  
...  

2012 ◽  
Vol 40 (3) ◽  
pp. 2231-2241 ◽  
Author(s):  
Su-Fang Ee ◽  
Ji-Min Oh ◽  
Normah Mohd Noor ◽  
Taek-Ryoun Kwon ◽  
Zeti-Azura Mohamed-Hussein ◽  
...  

2011 ◽  
Vol 49 (2) ◽  
pp. 151-158 ◽  
Author(s):  
Alma R. Altúzar-Molina ◽  
J. Armando Muñoz-Sánchez ◽  
Felipe Vázquez-Flota ◽  
Miriam Monforte-González ◽  
Graciela Racagni-Di Palma ◽  
...  

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