Effect of elicitors, precursors and metabolic inhibitors on paclitaxel production by Taxus cuspidata

来源 :Journal of Forestry Research | 被引量 : 0次 | 上传用户:Lotus35000
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In this study, using Taxus cuspidata as a raw material, we obtained stable high-yielding cell lines by subculturing and quantified paclitaxel content using ultrasonic extraction combined with TLC–UV spectrophotometry. In single factor and multiple factors tests to optimize design and study the effects of elicitors, precursors, and metabolic inhibitors on paclitaxel production by Taxus cuspidata cells, paclitaxel production reached 4.32 mg/L when 100 lmol/L methyl jasmonate, 20 mg/L salicylic acid, 400 mg/L phenylalanine and 2 mg/L gibberellin(GA_3) were added to the culture medium of suspension cells. When adding metabolic adjustment factors on the 7th day of culture, extra- and intracellular paclitaxel production was the highest at 4.855 mg/L, paclitaxel release rate was 10.48 %, fresh mass and paclitaxel production of cell increased, respectively, by 6.08 and 11.57 %. By controlling the anabolism of paclitaxel, paclitaxel yield was significantly improved. In this study, using Taxus cuspidata as a raw material, we obtained stable high-yielding cell lines by subculturing and quantified paclitaxel content using ultrasonic extraction combined with TLC-UV spectrophotometry. In single factor and multiple factors tests to optimize design and study the effects of elicitors, precursors, and metabolic inhibitors on paclitaxel production by Taxus cuspidata cells, paclitaxel production reached 4.32 mg / L when 100 lmol / L methyl jasmonate, 20 mg / L salicylic acid, 400 mg / L phenylalanine and 2 mg / L gibberellin GA_3) were added to the culture medium of suspension cells. When adding metabolic adjustment factors on the 7th day of culture, extra- and intracellular paclitaxel production was the highest at 4.855 mg / L, paclitaxel release rate was 10.48%, fresh mass and paclitaxel production of cell increased, respectively, by 6.08 and 11.57%. By controlling the anabolism of paclitaxel, paclitaxel yield was significantly improved.
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