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http://dx.doi.org/10.5010/JPB.2011.38.4.258

Anomalous somatic embryos formation and plant regeneration from the cultures of immature embryos of Camellia japonica L.  

Choi, Jong-Hye (Department of Medicinal Plant Resources, Nambu University)
Kwon, Suk-Yoon (Korea Research Institute of Bioscience and Biotechnology(KRIBB))
Choi, Pil-Son (Department of Medicinal Plant Resources, Nambu University)
Publication Information
Journal of Plant Biotechnology / v.38, no.4, 2011 , pp. 258-262 More about this Journal
Abstract
Embryogenic callus was induced from the cultures of immature embryos of Camellia japonica L. on Murashige & Skoog's (MS) solid medium supplemented with 1 mg/L 2,4-dichlorophenoxy acetic acid (2,4-D), and then the embryogenic callus was proliferated on same medium for 4 weeks over. The embryogenic callus was sub-cultured on MS basal medium without 2,4-D to produce coyledonary stage of somatic embryo. The frequency (%) of somatic embryogenesis was 25.1%, and the majority of somatic embryos formed had a abnormal morphology with cupshaped cotyledon (48.3%), one cotyledon (12.6%), three cotyledons (9.4%), four cotyledons (1.9%), whereas was only normal morphology with two cotyledon (27.5%). When the somatic embryos with normal or abnormal cotyledons transfer to MS basal medium or $\frac{1}{2}$ MS medium with/or without plant growth regulators ($GA_3$, IBA) for regeneration, the frequency (%) of two-cotyledon embryos regenerated into plantlets was higher 11.1% than one cotyledon (0.0~8.3 %), three cotyledons (0.0~5.8%), four cotyledons (0.0%), cup-shaped (0.3~4.2%). These results demonstrated that the anomalous cotyledons of somatic embryos could caused to decrease the rate of plant regeneration.
Keywords
Abnormal cotyledon; plant regeneration; somatic embryos;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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