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Production of seedlings from ovules excised at the zygote stage in Lilium spp.

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Abstract

The present study was undertaken to establish a culture system for ovules excised at the zygote stage in Lilium spp. Ovules of Lilium × `Connecticut King' and L. × `Enchantment' were excised together with placental tissue 3, 5, and 10 days after pollination (DAP) and cultured on B5 medium and half-strength B5 medium containing sucrose at different concentrations. In vitro embryo development in ovules cultured at 3 DAP was influenced by the basal media and the sucrose concentration. The half-strength B5 medium with 9% sucrose was the best condition, but only a few ovules isolated from placental tissue developed into seedlings. Application of embryo culture, in which embryos were excised from ovules after 14 weeks of ovule-with-plancetal-tissue culture, greatly improved the production of seedlings. The present study indicates that a two-step culture procedure, ovule-with-placental-tissue culture and embryo culture, make it possible to produce seedlings from ovules just after fertilization.

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Correspondence to Yoshiji Niimi.

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Ikeda, N., Niimi, Y. & Han, DS. Production of seedlings from ovules excised at the zygote stage in Lilium spp. . Plant Cell, Tissue and Organ Culture 73, 159–166 (2003). https://doi.org/10.1023/A:1022818413617

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  • DOI: https://doi.org/10.1023/A:1022818413617

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