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Micropropagation studies inCeropegia SPP

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Summary

The purpose of this study was to developin vitro techniques for conserving wild and endemic species ofCeropegia by mass multiplication for subsequent reintroduction in their natural habitat. Micropropagation involving a combination of axillary bud culture, shoot multiplication, somatic embryogenesis andin vitro tuber formation forCeropegia jainii, a rare plant of the Indian sub continent,C. bulbosa var.bulbosa andC. bulbosa var.lushii, common species, was developed. Nodal explants from all species were cultured on 0.5 MS medium with 8.8 μM (2 mg·l−1) N6-benzyl aminopurine (BA) to regenerate the axillary buds. These produced multiple shoots when transferred to multiplication medium consisting of 0.5 MS medium with 2.2 μM (0.5 mg·l−1) BA, or microtubers when transferred to 0.5 MS medium with 22.2 μM (5 mg·l−1) BA and 23.2 μM (5 mg·l−1) kinetin.In vitro flowering occurred inC. jainii and not in the other two varieties when the plants were cultured on multiplication media with spermine at 0.25 μM (50 μg·l−1) as an additive. Shoot pieces produced callus on MS medium with 9.05 μM (2 mg·l−1) 2,4-dichlorophenoxy acetic acid. Regeneration of the calli by somatic embryogenesis was achieved when they were transferred to 0.5 MS medium with 2.2 μM (0.5 mg·l−1) BA. Rooting of the shoots was possible both byin vitro andex vitro means.

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Patil, V.M. Micropropagation studies inCeropegia SPP . In Vitro Cell.Dev.Biol.-Plant 34, 240–243 (1998). https://doi.org/10.1007/BF02822714

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  • DOI: https://doi.org/10.1007/BF02822714

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