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<i>In Vitro</i>Organogenesis of <i>Quisqualis indica </i>Linn.
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作者 jaydip mandal Undurthy Laxminarayana 《American Journal of Plant Sciences》 2012年第9期1272-1282,共11页
Shoot organogenesis and plant regeneration were achieved on callus derived from leaf section and stem base explants of Quisqualis indica (Combretaceae). In vitro cultures were established using nodal segments obtained... Shoot organogenesis and plant regeneration were achieved on callus derived from leaf section and stem base explants of Quisqualis indica (Combretaceae). In vitro cultures were established using nodal segments obtained from mature field-grown shrubby plants. For the development of optimized protocol, different types and concentrations of plant growth regulators were used to induce adventitious shoot regeneration via callus from leaf section and one-node stem base explants obtained from in vitro regenerated micro shoots and direct field-grown newly flush-off shoots. The TDZ was considered to be the best among the cytokinins (6-benzyladenine (BA), 6-(?-?, dimethylallyamino purine) (2-iP) and thidiazuron (TDZ) added to the Murashige and Skoog’s medium (MS) for adventitious shoot productions. A combination of 1.0 mg/L TDZ and 0.5 mg/L GA3 was most effective in stimulating callus induction and adventitious shoot regeneration from the leaf section derived calli with an average of 6 shoots per callus explant and an average of 8 shoots per callus explant originated from one-node stem base explants. In vitro raised shoots were sub-cultured on MS medium supplemented with 1.0 mg/L BA and 0.5 mg/L GA3 for further shoot growth. Maximum rooting of in vitro regenerated shoots was obtained on MS medium supplemented with either 0.5 mg/L indole-3-acetic acid (IAA) or indole-3-butyric acid (IBA) individually or a combination of 0.5 mg/L IAA and 0.5 mg/L IBA. Plantlets raised in vitro were acclimatized and subsequently transferred to experimental field. 展开更多
关键词 ORGANOGENESIS Quisqualis INDICA SHOOT Regeneration Tissue Culture
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