Abstract
The ability of immature, mature and endosperm-supported mature embryos of diploid and tetraploid winter ryes (Secale cereale L) was tested to compare the callus induction and plant regeneration. Immature embryos were obtained from field grown rye. Immature embryos were aseptically excised and placed, with the scutellum upwards, on the callus culture medium consisted of Murashige and Skoog (MS) mineral salts supplemented with 2 mg l−1 2,4-dichlorophenoxyacetic acid (2,4-D). Mature embryos were aseptically excised the imbibed seeds and placed, scutellum up, on MS medium supplement with 2 mg l−1 2,4-D. Endosperm-supported mature embryos were moved slightly (not set free) in the imbibed mature seeds. The seeds with moved embryos were placed furrow downwards in dishes containing 8 mg l−1 2,4-D for callus induction. The developed calli and regenerated plant were maintained on hormone free MS medium. Comparison of the responses of the three explants used indicated that endosperm-supported mature embryo was the most useful explant for plant regeneration in both diploid and tetraplold ryes. This is the first report of winter ryes plants having been regenerated from endosperm-supported mature embryos.
Abbreviations
- 2,4-D:
-
2,4-dichlorophenoxyacetic acid
- MS:
-
Murashige and Skoog
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Birsin, M.A., Özgen, M. Callus Formation and Plant Regeneration from Cultured Embryos of Diploid and Tetraploid Winter Ryes (Secale cereale L). J. Plant Biochem. Biotechnol. 17, 81–84 (2008). https://doi.org/10.1007/BF03263265
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DOI: https://doi.org/10.1007/BF03263265