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2007 | 29 | 3 |
Tytuł artykułu

In vitro shoot multiplication and plantlet regeneration from nodal explants of Cassia angustifolia (Vahl.): a medicinal plant

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An efficient, rapid and reproducible plant regeneration protocol was successfully developed for Cassia angustifolia using nodal explants excised from 14-day-old aseptic seedlings. Of the two cytokinins, 6-benzyladenine (BA) and thidiazuron (TDZ) evaluated as supplements to Murashige and Skoog (MS) medium, TDZ at an optimal concentration of 5.0 µM was effective in inducing multiple shoots. The highest rate of shoot multiplication was achieved on MS medium supplemented with 5.0 µM TDZ and 1.0 µM indole-3-acetic acid (IAA) at pH 5.8. The regenerated shoots when subcultured on hormone free MS medium considerably increased the rate of shoot multiplication and shoot length by end of fourth subculture passage. Rooting was achieved on the isolated shoots using MS medium with 60 µM indole -3- butyric acid (IBA) and 1% activated charcoal for 1 week and subsequently transferring the shootlets to half strength MS liquid media without IBA and activated charcoal. The in vitro raised plantlets with welldeveloped shoot and roots were successfully established in earthen pots containing garden soil and grown in greenhouse.
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  • Plant Biotechnology Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
  • Plant Biotechnology Laboratory, Department of Botany, Aligarh Muslim University, Aligarh 202 002, India
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