Tacca leontopetaloides
(called taka) is a tuberous plant producing high carbohydrate content useful as functional food. This plant grows in some limited coastal area in Indonesia. Tissue culture of this plant has been done for micropropagation and for in vitro conservations. Genetic improvement is important to produce genotypes which are able to grow in a marginal land such as in a drought condition. The aim of this research was to investigate the effect polyethylene glycol (PEG) concentrations added to culture medium on growth and proline content of taka shoots culturedin vitro. Shoots of taka were treated with 2.5-15% PEG. After 6 weeks of treatments, growth was evaluated by recording height of shoots, number of shoots, number of leaves, number of roots and fresh weight. Proline content was also determined at the same time. The results showed that growth of taka decreased along with increase in PEG concentrations. In contrary, proline content in taka explants increased along with increase in PEG concentrations. Taka produced few roots on the medium added with high level of PEG (7.5-15%).
Martin AF., Hapsari B.W, Rudiyanto and Ermayanti TM. 2016. Proceedings
The 6th Indonesian Biotechnology Conference. Surakarta. 6: 299-304
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