Abstract
The micropropagation of T. garganica, a medicinally important plant, was investigated as an option for conservation purposes as wild populations are becoming sparse. A Murashige and Skoog agar medium supplemented with 0.5 mg l(-1) alpha-naphthaleneacetic acid and 1.5 mg l(-1) benzyl-6-adenine significantly improved the production of multiple shoots directly from petiole and leaflet explants compared to other plant growth regulator (PGR) combinations. Medium free of PGRs promoted rooting at a low incidence. Acclimatisation was low--52% plantlet survival--as micropropagated plantlets were highly susceptible to fungal rot once removed from culture. Application of antifungal agents to in vitro-derived plantlets as pre- and post-acclimatisation treatments during transplanting significantly reduced ex vitro mortality.
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