Abstract
Excised embrya and subsequently divided embrya of Podophyllum peltatum were cultured on the Murashige and Skoog medium supplemented with different growth regulators, because traditional methods of breaking seed dormancy failed. The growth of excised embrya was stimulated by 1 or 0.1 mg dm-3gibberellic acid (GA3), 0.1 mg dm-3 GA3 + 0.2 mg dm-3 kinetin (kin), or 0.2mg dm-3 kin. GA3 (1 mg dm-3) showed the best effect; after 5 weeks the plantlets had 1.5 - 2 cm long cotyledons, 5 - 6 cm long roots, 88 % of embrya germinated and developed further. The addition of 0.5 mg dm-3 zeatin + 0.2 mg dm-3 naphtaleneacetic acid (NAA), 0.2 mg dm-3 NAA, and 1 mg dm-3 kinetin inhibited the growth of embrya. 1 mg dm-3 kinetin + 0.1 mg dm-3 NAA, 0.1 mg dm-3 zeatin and 0.2 mg dm-3 6-benzylaminopurine resulted in a compact appearance of plantlets and a lower germination rate. Divided embryo cultures produced plantlets via somatic embryogenesis which occurred only on the 2,4-dichlorophenoxyacetic acid containing media. The maturation of somatic embrya was observed on media without any auxin.
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Sadowska, A., Wiweger, M., Łata, B. et al. In vitro propagation of Podophyllum peltatum L. by the cultures of embrya and divided embrya. Biologia Plantarum 39, 331–336 (1997). https://doi.org/10.1023/A:1001089105961
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DOI: https://doi.org/10.1023/A:1001089105961