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Adventitious Shoot and Plant Regeneration from Anther Culture of Hypericum ascyron L.  

Ko, Jeong-Ae (Faculty of Biological Resources Science, College of Agriculture, Chonbuk National University, Institute of Agricultural Science & Technology, Chonbuk National University)
Kim, Hyun-Soon (National Institute of Crop Science, Rural Development Administration)
Kim, Hyung-Moo (Faculty of Biological Resources Science, College of Agriculture, Chonbuk National University, Institute of Agricultural Science & Technology, Chonbuk National University)
Publication Information
Korean Journal of Plant Resources / v.21, no.5, 2008 , pp. 368-373 More about this Journal
Abstract
In order to investigate the effects of low temperature pretreatment of floral bud and plant growth regulators on anther-derived callus and shoot differentiation, anthers were cultured on 1/2 MS medium supplemented with 2,4-D, NAA, BA and TDZ. This plant depends on the plant growth regulators, for these anthers couldn't respond on 1/2 MS medium without plant growth regulators. 2,4-D was a prerequisite substance in this experiment, especially 52.6% of callus formation on MS medium with 2.0mg/L 2,4-D alone. However, the optimum medium was on 1/2 MS medium with 0.1 mg/L 2,4-D and 1.0mg/L BA for continuous growth and shoot differentiation from the anther. Calli derived from on MS medium with 2.0mg/L 2,4-D transferred to the 1/2MS medium with TDZ and BA. TDZ were less superior to BA, only one anther could produce shoot on MS media with 1.0mg/L TDZ. On the other hand, when the calli transferred to the medium with 3.0mg/L BA, adventitious shoots were proliferated, subsequently, regenerated shoots elongated from the embryogenic calli. After floral buds of one week before anthesis were incubated at $5^{\circ}C$ refrigerator for eight or fifteen days, anthers seperated from floral buds were cultured on 1/2MS medium supplemented with 0.1mg/L 2,4-D and 1.0mg/L BA. Callusing and shoot differentiation on anthers from treated at $5^{\circ}C$ for eight days were more effective than those of fifteen days or control.
Keywords
anther-derived callus; adventitious shoots; 2,4-D; NAA; BA; TDZ;
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Times Cited By KSCI : 7  (Citation Analysis)
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