期刊
PLANT CELL TISSUE AND ORGAN CULTURE
卷 107, 期 2, 页码 365-369出版社
SPRINGER
DOI: 10.1007/s11240-011-9983-x
关键词
Activated charcoal; Bell flower; Campanula punctata; Gibberellic acid; Somatic embryogenesis
资金
- Ministry of Education, Science and Technology, Korea
A simple and efficient protocol was developed for somatic embryogenesis from leaf and petiole explants of Campanula punctata Lam. var. rubriflora Makino. Somatic embryos (SE) were obtained with greater frequency from petiole explants than from leaf explants when cultured on Murashige and Skoog (MS) medium supplemented with 2.0 mg L-1 2,4-dichlorophenoxyacetic acid (2,4-D) and 1.0 mg L-1 6-benzyladenine (BA). On this medium, a mean number of 19.5 and 31.2 SE were developed per leaf and petiole explants, respectively. Embryos were induced both light and dark conditions but culturing the explants 2 weeks in the dark followed by 3 weeks under light resulted in high frequency of embryo formation. Globular embryos germinated best on MS medium supplemented with 0.3% (w/v) activated charcoal (AC) and 1.0 mg L-1 GA3. The germinated plantlets grew further on MS medium containing 0.3% AC. Plantlets were successfully acclimatized in the greenhouse with 94% survival rate. This is the first report on induction of somatic embryogenesis in this genus and also has implications for genetic transformation, and mass clonal propagation.
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