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http://dx.doi.org/10.5010/JPB.2003.30.4.341

High-frequency Plant Regeneration from Mature Seed-derived Callus Cultures of Orchardgrass  

Lee, Sang-Hoon (Division of Applied Life Science, Gyeongsang National University)
Lee, Dong-Gi (Division of Applied Life Science, Gyeongsang National University)
Kim, Jin-Soo (Division of Applied Life Science, Gyeongsang National University)
Lee, Byung-Hyun (Institute of Agriculture and Life Science)
Publication Information
Journal of Plant Biotechnology / v.30, no.4, 2003 , pp. 341-346 More about this Journal
Abstract
In an effort to optimize tissue culture conditions for genetic transformation of orchardgrass (Dactylis glomerata L.), an efficient and high-frequency plant regeneration system from seed-derived calli was established. Embryogenic calli induced on MS medium containing 3mg/L 2,4-D and 0.1mg/L BA had significantly improved regeneration ability. Plant regeneration rate was 92％ when embryogenic calli were cultured on N6 medium supplemented with 1mg/L 2,4-D and 3mg/L BA. Among three kinds of medium, MS and N6 medium were optimal for embryogenic callus induction and plant regeneration, respectively. Ho difference in callus induction frequency was observed among four cultivars of orchardgrass, however, "Roughrider" cultivar showed higher regenerability with the frequency of 61％. Addition of maltose to the regeneration medium as a carbon source dramatically increased regeneration frequency up to 69％. A short tissue culture period and high-frequency regeneration system would be beneficial for molecular breeding of orchardgrass through genetic transformation.
Keywords
Callus; Dactylis glomerata; forage; orchardgrass; regeneration;
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Times Cited By KSCI : 1  (Citation Analysis)
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