Somatic embryos developed directly from 96 and 110 day post-anthesis Cercis canadensis L. (redbud) zygotic embryos from one of two trees sampled that were explanted onto modified Schenk and Hildebrandt medium amended with either 1, 2, 3 or 5 mg/1 2,4-D in combination with either 7.6 or 12. 6 mM ammonium ion. Although somatic embryogenesis was expressed on most media, the number of explants that produced somatic embryos and the mean number of embryos formed per explant were greatest on media that contained either 2 or 3 mg/1 2,4-D; 12.6 mM ammonium ion inhibited embryogenesis from 96 day post-anthesis explants. Zygotic embryos explanted 117 days after anthesis produced only callus and roots. Somatic embryos that were bottle-shaped or had distinct cotyledons organized roots on germination media, but only one embryo formed a shoot. No additional development occurred. Histological examination of somatic embryos showed that shoot apical meristems were poorly developed.
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2, 4-dichlorophenoxyacetic acid
Formalin-propionic acid-ethanol (50%)
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Communicated by J. Widholm
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Trigiano, R.N., Beaty, R.M. & Graham, E.T. Somatic embryogenesis from immature embryos of redbud (Cercis canadensis). Plant Cell Reports 7, 148–150 (1988). https://doi.org/10.1007/BF00270127
- Somatic Embryo
- Histological Examination
- Somatic Embryogenesis
- Apical Meristem