期刊
PLANT CELL TISSUE AND ORGAN CULTURE
卷 92, 期 3, 页码 273-280出版社
SPRINGER
DOI: 10.1007/s11240-007-9332-2
关键词
somatic embryogenesis; secondary somatic embryogenesis; carnation
This is the first report describing culture conditions necessary to induce secondary embryogenesis in two carnation cultivars, Nelson and Spirit. In the first step, embryogenic calli were induced on petal explants followed by development of primary somatic embryos from the calli. In the second stage, secondary somatic embryos were obtained when precotyledonary and cotyledonary primary embryos were isolated and transferred onto a series of culture media all containing MS basal salt mixture, and supplemented with different concentrations of 2,4-D, BA, sucrose and mannitol. The highest rate of secondary embryogenesis occurred on mannitol containing media. Secondary somatic embryos were converted into plantlets when they were transferred onto growth regulator-free half-strength MS medium and successfully acclimated in the greenhouse.
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