Abstract
Shoot tip and single node explants from young shoots of 1-year old flowering plants of Rauwolfia micrantha Hook. f. were cultured on Murashige & Skoog (MS) medium variously supplemented with 6-benzyladenine (BA) and α-naphthaleneacetic acid (NAA). A combination of 13.2 μM BA and 2.68 μM NAA induced high frequency (77%) formation of up to 3 shoots from each node in 8 weeks. The regeneration of shoot tips from the field-grown plants and in vitro shoots placed horizontally differed. Repeated subculturing of the shoot tips and single nodes at 6-week intervals for over a year in combination of 4.4 μM BA and 0.27 μM NAA enabled mass multiplication of shoots without any evidence of decline. Rooting of the excised shoots on medium containing 2.6 μM NAA was preceded by callus formation. The rooted plants were removed off the callus, hardened off and 80% established in pots. Micropropagated plants displayed uniform morphological, growth, flowering, fruiting and seed germination characteristics.
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Abbreviations
- BA:
-
6-benzyladenie
- IAA:
-
indole-3-acetic acid
- IBA:
-
indole-3-butyrie acid
- 2-ip:
-
2-isopentenyladenine
- MS:
-
Murashige & Skoog (1962)
- NAA:
-
α-naphthaleneacetic acid
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Sudha, G.G., Seeni, S. In vitro propagation of Rauwolfia micrantha, a rare medicinal plant. Plant Cell Tiss Organ Cult 44, 243–248 (1996). https://doi.org/10.1007/BF00048530
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DOI: https://doi.org/10.1007/BF00048530