Method for improving flavonoid phenylpropanoid compounds of saussurea involucrate cell culture
A kind of flavonoid phenylpropanoid and cell culture technology, applied in the field of plant biotechnology engineering, can solve the problems of reduced content of active ingredients, no high-yielding cell lines, low content of ingredients, etc., and achieve the effect of increasing the content of total flavonoids
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Embodiment 1
[0027] The cultivation of embodiment 1 Xinjiang snow lotus aseptic seedling
[0028] The seeds of natural Xinjiang snow lotus have been identified by the herbarium of the Institute of Chinese Academy of Sciences (National Herbarium), first soaked in 75% alcohol for 10-30s, then sterilized with 1% mercuric chloride solution for 8-12min, and then sterile Repeatedly rinse with water for 4-5 times, and finally put it on sterile filter paper to blot dry the water on the seed surface, inoculate with sterile tweezers, add 0.5-3mg / L GA (gibberellin) to 1 / 2MS (see attached table 3 for the formula) , 10-30g / L sucrose, 0.6g / L agar solid medium, cultured under light at 22-27°C, the seeds can germinate and grow sterile seedlings in about 10 days.
Embodiment 2
[0029] Induction and cultivation of embodiment 2 callus
[0030]Take aseptic seedling roots, stems, leaves, cotyledons, and embryos as explants, and under aseptic conditions, use sterile surgical scissors and sterile tweezers to cut the sterile seedling roots, stems, leaves, cotyledons, and embryos into 2- 5mm long segment, inoculated in MS (recipe see attached table 2), add 0.2mg / L-0.5mg / L 6-BA (6-benzylpurine), 2mg / L-4mg / L NAA (naphthalene acetic acid), On the solid medium of 0.6g / L agar and 30g / L sucrose, cultivate in dark at 22-27℃, and induce callus in 7-10 days.
Embodiment 3
[0031] The subculture selection of embodiment 3 callus
[0032] Through the induction and cultivation of Saussurea sativa callus, four Xinjiang Saussurea sauraceae cell lines were obtained: white line, yellow line, green line and purple line; the four cell lines were subcultured respectively, and the growth rate, The detection of the total flavonoid content determined that the fuchsia cell line was the cell line with better growth and the highest total flavonoid content.
[0033] Select the purple-red cell line as the original cell line, select the darker and brighter purple-red callus from the solid medium by visual inspection, and add 0.2mg / L-0.5mg / L to MS (see attached table 2 for the formula) Continue to subculture on the solid medium of L 6-BA (6-benzyl purine), 2mg / L-4mg / L NAA (naphthalene acetic acid), 0.6g / L agar and 30g / L sucrose. In order to better optimize the seeds and purify the cell lines, the size of the inoculation block should be controlled below 3mm during s...
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