Ultralow-temperature culturing method for asparagus officinalis
A technology of asparagus ferns and cultivation method, which is applied in the directions of horticultural methods, botanical equipment and methods, horticulture, etc., to achieve the effects of high recovery rate and regeneration rate, wide variety of preservation and low cost
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Embodiment 1
[0029] The invention provides a method for ultra-low temperature preservation and cultivation of Asparagus dentifrice, comprising: placing the shoot tip of Asparagus dentata with a length of 1 mm cultured in a pre-culture solution in a shaker shaker and cultivating it in the dark for 1 day at room temperature, Treat with the loading solution for 20 minutes, take out the stem tip of Asparagus fern and transfer it to a vitrification solution at 0°C for dehydration for 25 minutes, then put it into a cryopreservation tube, and then store the cryopreservation tube in liquid nitrogen for ultra-low temperature preservation.
[0030] Wherein, the preculture solution is: 1 / 2MS+0.8mol / L sucrose+7g / L agar;
[0031] The loading solution is: 1 / 2MS+2mol / L glycerol+0.5mol / L sucrose
[0032] The vitrification solution is: PVS1
Embodiment 2
[0034] The invention provides a method for ultra-low temperature preservation and cultivation of Asparagus dentifrice, comprising: placing the stem tip of Asparagus dentata with a length of 2 mm cultured in a pre-culture solution in a shaker shaker for 2 days in the dark and dark for 2 days, Treat with the loading solution for 40 minutes, take out the shoot tip of Asparagus fern, transfer it to a vitrification solution at 0°C for dehydration for 40 minutes, put it into a cryopreservation tube, and then store the cryopreservation tube in liquid nitrogen for ultra-low temperature preservation.
[0035] Among them, the pre-culture solution is: MS+1.2mol / L glucose+0.2mg / mL NAA;
[0036] The loading solution is: 1 / 2MS+2mol / L glycerol+0.7mol / L sucrose
[0037] The vitrification solution is: PVS3
Embodiment 3
[0039] The invention provides a method for ultra-low temperature preservation and cultivation of Asparagus dentata, comprising: placing the stem tip of Asparagus dentata with a length of 2 mm cultured in a pre-culture solution in a shaker shaker for 3 days in the dark and dark for 3 days, Treat with the loading solution for 460 minutes, take out the stem tip of Asparagus fern, transfer it to a vitrification solution at 0°C for dehydration for 60 minutes, put it into a cryopreservation tube, and then store the cryopreservation tube in liquid nitrogen for ultra-low temperature preservation.
[0040] Among them, the pre-culture solution is: MS+1.2mol / L glucose+5%DMSO+1.0mg / mL6-BA
[0041] The loading solution is: 1 / 2MS+2mol / L glycerol+0.7mol / L sucrose
[0042] The vitrification solution is: PVS1
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