An efficient, reliable and reproducible plant regeneration protocol was developed for Lawsonia inermis L. using mature nodal explants. Shoot proliferation (81.6 %) with 7.8 shoots/explant was achieved on Murashige and Skoog’s (MS) medium supplemented with 1.0 mg l−1 6-benzyladenine. Shoot numbers were up-scaled by inducing multiple shoots from axenic nodal segments derived from the primary shoots on the shoot regeneration medium. Thus the authors could achieve ca. 129–134 shoots from single nodal explant. Ninety-three percent rooting of in vitro regenerated shoots was achieved on growth regulator free half-strength MS medium. Regenerated plantlets were successfully transferred to soil with 85 % survival rate. Genetic stability analyses of the in vitro regenerated plants using random amplified polymorphic DNA and inter simple sequence repeat markers revealed a homogeneous amplification profile for all micropropagated plants. This is the first report that evaluates the use of molecular markers to establish genetic fidelity of micropropagated L. inermis for the rapid clonal multiplication and true-to-type production of plant for attaining the ever increasing demand in pharmaceutical industries.
Proceedings of the National Academy of Sciences, India Section B: Biological Sciences – Springer Journals
Published: May 23, 2016
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