Method for establishing adventitious root cultivation system of Psammosilene tuniceoides W. C. Wu et C. Y. Wu and expanding cultivation method of Psammosilene tuniceoides W. C. Wu et C. Y. Wu
A culture system and technology for expanding culture, which is applied in the field of establishment and expansion of the culture system of Adventitia chinensis, can solve the problems of retention, growth stability, culture conditions and various adjustment parameters, such as the contradiction between cell growth and accumulation of secondary metabolites , to achieve the effect of saving land, rapid and convenient scale production, and reducing production costs
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Embodiment 1
[0062] (1) Select the golden iron lock leaf as the explant, and carry out the disinfection treatment: rinse with running water, soak in Tween 20 for 25 minutes, rinse with sterile water 3 times; then use 0.1% HgCl 2 Treat for 8 minutes, rinse with sterile water for 3 times; then treat with 75% ethanol for 8 seconds, rinse with sterile water for 3 times, and finally absorb the water with sterile filter paper;
[0063] (2) Callus induction: inoculate the explants in step (1) in callus induction medium: MS medium + 2,4-D 0.5 mg / L + NAA 0.5 mg / L + KT 0.1 mg / L+cysteine 1.0mg / L, pH 6.0, culture in the dark at 25±1℃. The leaves are inoculated on the induction medium for about 10 days to start to grow milky white callus; about 20 days, the callus gradually covers the explants, and at 25 days, select loose, well-growing callus for subculture;
[0064] (3) Induced callus subculture: 0.5g of callus obtained in step (2) was inoculated into MS medium + sucrose 40g / L + KNO 3 1.9 g / L + NH 4 N...
Embodiment 2
[0070] (1) Select the golden iron lock stem segment with a length of 1.0-1.5cm as the explant, and perform disinfection treatment: rinse with running water, soak in Tween 20 for 25 minutes, rinse with sterile water 3 times; then use 0.1% HgCl 2 Treat for 8 minutes, rinse with sterile water for 3 times; then treat with 75% ethanol for 8 seconds, rinse with sterile water for 3 times, and finally absorb the water with sterile filter paper;
[0071] (2) Callus induction: inoculate the explants in step (1) in callus induction medium: MS medium + 2,4-D 0.5 mg / L + NAA 0.5 mg / L + KT 0.1 mg / L+cysteine 2.0mg / L, pH 6.0, culture in the dark at 25±1℃. The leaves are inoculated on the induction medium for about 10 days to start to grow milky white callus; about 20 days, the callus gradually covers the explants, and at 25 days, select loose, well-growing callus for subculture;
[0072] (3) Induced callus subculture: 0.5g of callus obtained in step (2) was inoculated into MS medium + sucrose 40...
Embodiment 3
[0079] (1) Select the stem section 2.0-3.0cm in length as the explant, and perform disinfection treatment: rinse with running water, soak in Tween 20 for 25 min, rinse with sterile water 3 times; then use 0.1% HgCl 2 Treat for 8 minutes, rinse with sterile water for 3 times; then treat with 75% ethanol for 8 seconds, rinse with sterile water for 3 times, and finally absorb the water with sterile filter paper;
[0080] (2) Callus induction: inoculate the explants in step (1) in callus induction medium: MS medium + 2,4-D 0.5 mg / L + NAA 0.5 mg / L + KT 0.1 mg / L, pH 6.0, culture at 25±1℃ and natural light. The leaves are inoculated on the induction medium for about 10 days to start to grow milky white callus; about 20 days, the callus gradually covers the explants, and at 25 days, select loose, well-growing callus for subculture;
[0081] (3) Induced callus subculture: 0.5g of callus obtained in step (2) was inoculated into MS medium + sucrose 40g / L + KNO 3 1.9 g / L + NH 4 NO 3 1.65 g / ...
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