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Abstract ▼ AI-Helper

Ginseng cotyledon calli were cultured on 1/2MS media supplemented with combination of various growth regulators to induce more embryoids and plantlets in a short period. And tissues of ginseng root and calli were also incubated under various factors or conditions to establish methods for the isolati...

Ginseng cotyledon calli were cultured on 1/2MS media supplemented with combination of various growth regulators to induce more embryoids and plantlets in a short period. And tissues of ginseng root and calli were also incubated under various factors or conditions to establish methods for the isolation of viable protoplasts in Panax ginseng C.A. Meyer. The calli derived from cotyledon produced numerous embryoids in 1/2MS media containing 0.5mg/$\ell$ 2,4-D and 0.5mg/$\ell$ kinetin after 2 months' culture. But only shoot formation was less frequent. Further development of these embryoids occurred on 1/2MS medium supplemented with the same concentration of BA and GA. Viable protoplasts were isolated from the root tissue and callus of ginseng. The specific conditions for the isolation of viable protoplasts were required of ginseng materials, root tissue and callus, being processed. For the production of viable protoplasts from 1-year old ginseng root tissue, an enzyme mixture of $2\%$ cellulase 'Ono-zuka' and $0.5\%$ macerozyme, an enzyme solution pH of 5.2 to 5.8, a 7- to 8- hour incubation period at $28{\pm}1^{\circ}C$, and 0.9M mannitol as osmoticum in the cell enzyme mixture were optimum, while the treatments with an enzyme mixture of $2\%$ cellulase 'Onozuka', $2\%$ macerozyme and $1\%$ driselase, and 25-hour incubation period at $28{\pm}1^{\circ}C$, were more efficient for the production of viable protoplasts from ginseng callus.