Journal of Genetic Engineering and Biotechnology (Dec 2014)

Indirect organogenesis from various explants of Hildegardia populifolia (Roxb.) Schott & Endl. – A threatened tree species from Eastern Ghats of Tamil Nadu, India

  • A.R. Lavanya,
  • S. Muthukrishnan,
  • M. MuthuKumar,
  • J.H. Franklin Benjamin,
  • T. Senthil Kumar,
  • V. Kumaresan,
  • M.V. Rao

DOI
https://doi.org/10.1016/j.jgeb.2014.09.002
Journal volume & issue
Vol. 12, no. 2
pp. 95 – 101

Abstract

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Hildegardia species are an important resource for fiber industry. This investigation was conducted to develop a plant regeneration protocol for Hildegardia populifolia (Roxb.) Schott & Endl. via indirect organogenesis Callus was obtained from leaf, internode and petiole explants, among these explants internode explant gave best result on MS medium supplemented with different concentrations of 2,4-Dichlorophenoxy acetic acid (2,4-D). The highest percentage (100%) of regeneration was obtained with benzyladenine (BA) (2.0 mg/l) + indole-3-acetic acid (IAA) (0.1 mg/l) + glutamine (25 mg/l) + thidiazuron (TDZ) (0.5 mg/l) from internode explants. Shootlets were highly rooted on MS medium supplemented with 3.0 mg/l indole-3-butyric acid (IBA). In vitro rooted seedlings were successfully acclimatized. This in vitro regeneration system will facilitate further development of reliable procedures for this genus.

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