Induced extracellular production of viniferins in grapevine cell culture medium by elicitation with methyl jasmonate and stevioside
We report the high production of stilbenes, including resveratrol and viniferins, in grapevine (Vitis labruscana L.) cell cultures through elicitation with methyl jasmonate (MJ) and stevioside (STE). Methyl-β-cyclodextrin (CD-M) is widely used as a solubilizer for resveratrol production. For the first time, we used STE as a solubilizer for stilbene production in plant cell cultures. MJ was most effective in activating VvSTS expression and stimulating stilbene biosynthesis and induced accumulation of trans-piceid in the cells. High levels of trans-resveratrol and δ-viniferin production were observed in the culture medium when CD-M and STE, respectively, were used as solubilizers, but neither were significantly elevated within the cells. Maximum production of trans-resveratrol (12.2 mg/L) and δ-viniferin (892.2 mg/L) was observed 5 days after elicitation of cells with MJ and STE in shake flask cultures. Notably, predominant production of δ-viniferin and trans-resveratrol was observed in shake and static flask culture medium, respectively. Furthermore, stilbene compounds of resveratrol, e-viniferin, and δ-viniferin were mainly produced in a 3 L bioreactor culture following elicitation of cells with MJ and STE. These results provide new strategies for conditional, high-level production of resveratrol and viniferins in cell cultures by utilizing the solubilizing properties of STE or CD-M.
Publisher URL: https://www.researchsquare.com/article/rs-17669/v1