Summary
A protocol was developed for rapid clonal propagation of the important medicinal climber, Tinospora cordifolia, through in vitro culture of mature nodal explants. Shoots were initiated on both Murashige and Skoog (MS) medium and woody plant medium (WPM) supplemented with 2.32 μM kinetin (KIN). Of the two basal media tested, WPM was found to be superior to MS medium for the induction of multiple shoots. Among the cytokinins tested, N6-benzyladenine (BA) was more effective than KIN for axillary shoot proliferation. KIN was superior to BA in terms of shoot elongation. An average multiplication rate of 6.3 shoots per explant was obtained with WPM supplemented with 8.87 μM BA. Shoot clumps harvested from this medium were transferred to WPM supplemented with 2.22 μM BA and 4.65 μM KIN for shoot elongation. Elongated shoots were rooted in half-strength MS medium supplemented with 2.85 μM indole-3-acetic acid (IAA). Rooted plantlets were successfully transferred to sand and established with 80% survival.
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Raghu, A.V., Geetha, S.P., Martin, G. et al. In vitro clonal propagation through mature nodes of Tinospora cordifolia (Willd.) Hook. F. & Thoms.: An important ayurvedic medicinal plant. In Vitro Cell.Dev.Biol.-Plant 42, 584–588 (2006). https://doi.org/10.1079/IVP2006824
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DOI: https://doi.org/10.1079/IVP2006824