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  • 1
    ISSN: 1432-203X
    Keywords: Key words Cryopreservation ; Encapsulation-dehydration ; Encapsulation-vitrification ; Hairy roots ; Horseradish shoot primordia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Shoot primordia induced in Armoracia rusticana Gaertn. Mey. et Scherb. (horseradish) hairy root cultures were successfully cryopreserved by two cryogenic procedures. Encapsulated shoot primordia were precultured on solidified Murashige-Skoog medium supplemented with 0.5 M sucrose for 1 day and then dehydrated with a highly concentrated vitrification solution (PVS2) for 4 h at 0°C prior to a plunge into liquid nitrogen. The survival rate of encapsulated vitrified primordia amounted to 69%. In a revised encapsulation-dehydration technique, the encapsulated shoot primordia were precultured with a mixture of 0.5 M sucrose and 1 M or 1.5 M glycerol for 1 day to induce dehydration tolerance and then subjected to air-drying prior to a plunge into liquid nitrogen. The survival rate of encapsulated dried primordia was more than 90%, and the revived primordia produced shoots within 2 weeks after plating. A long-term preservation of shoot primordia was also achieved by the technique. Thus, this revised encapsulation-dehydration technique appears promising as a routine method for the cryopreservation of shoot primordia of hairy roots.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-203X
    Keywords: Cryopreservation ; Encapsulation-dehydration ; Encapsulation-vitrification ; Hairy roots ; Horseradish shoot primordia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Shoot primordia induced inArmoracia rusticana Gaertn. Mey. et Scherb. (horseradish) hairy root cultures were successfully cryopreserved by two cryogenic procedures. Encapsulated shoot primordia were precultured on solidified Murashige-Skoog medium supplemented with 0.5M sucrose for 1 day and then dehydrated with a highly concentrated vitrification solution (PVS2) for 4 h at 0°C prior to a plunge into liquid nitrogen. The survival rate of encapsulated vitrified primordia amounted to 69%. In a revised encapsulation-dehydration technique, the encapsulated shoot primordia were precultured with a mixture of 0.5M sucrose and 1M or 1.5M glycerol for 1 day to induce dehydration tolerance and then subjected to air-drying prior to a plunge into liquid nitrogen. The survival rate of encapsulated dried primordia was more than 90%, and the revived primordia produced shoots within 2 weeks after plating. A long-term preservation of shoot primordia was also achieved by the technique. Thus, this revised encapsulation-dehydration technique appears promising as a routine method for the cryopreservation of shoot primordia of hairy roots.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
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