Elicitation with methyl-jasmonate stimulates peruvoside production in cell suspension cultures ofThevetia peruviana

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Thevetia peruviana is a small tree that produces several compounds with pharmaceutical application, among which peruvoside could be highlighted. However, these compounds are produced in low concentration in the plant, making it important to develop strategies such as plant cell culture and elicitation to obtain higher quantities of the desired product. In this work, cell suspension cultures of T. peruviana were established in four different culture media: Murashige-Skoog (MS), half Murashige-Skoog (half MS), Schenk-Hildebrandt (SH), and Gamborg (B5) to study their effect on cell growth. Cell growth kinetics were studied in SH medium, and the extracellular peruvoside production during the culture time was determined. The best culture medium for the establishment of cell suspension cultures was MS with a growth index of 3.17 ± 0.2 g g-1 inoculum. The cell growth kinetics showed the four characteristic growth phases of a cell culture (lag, exponential, stationary, and death), and during none of these phases was it possible to observe peruvoside production. The elicitor effect of methyl-jasmonate (MeJ) was studied in cell suspension cultures established in SH medium. The effect of MeJ concentration and the time in which it should be applied were determined. The best results were obtained at a concentration of 100 mg l-1 of MeJ applied at the beginning of the culture, which induced a peruvoside production of 8.93 mg l-1 medium. The current results are the first report of an in vitro peruvoside production system.

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