Journal
PLANT CELL TISSUE AND ORGAN CULTURE
Volume 101, Issue 2, Pages 171-182Publisher
SPRINGER
DOI: 10.1007/s11240-010-9674-z
Keywords
Flow cytometry; Ornamental plant; Ploidy stability; Protoplast isolation; Somaclonal variation; Vegetative propagation
Funding
- German Federal Ministry of Economics and Technology [KF0054802MD5]
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Embryogenic cultures of Cyclamen coum were established on solid media and in suspension, and their growth characteristics in response to different concentrations of plant growth regulators (PGRs) were evaluated. Embryogenic cultures exhibited a high regeneration capacity of 876 somatic embryos per gram fresh mass. Up to 4.24 x 10(5) protoplasts per gram of fresh mass were isolated from somatic embryos and embryogenic suspension cultures. Protoplasts derived from both embryos and suspension cultures were successfully cultured in vitro and regenerated into plants via somatic embryogenesis. Phenotypic analyses and flow cytometric measurements revealed that some regenerated plants were tetraploid. About 20% of the protoplast-derived calluses used for regeneration were tetraploid, while tetraploidy was found in 0.9% of the plants regenerated from the embryogenic cultures.
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