Callus Induction in Small Flowered Willow Herb (Epilobium parviflorum Schreb)
2005
Akbudak, Mehmet Aydin | Babaoglu, Mehmet
In order to determine the most suitable in vitro tissue culture and plant regeneration conditions for the small flowered willow herb (Epilobium parviflorum Schreb), various explants were cultured on semi-solid MS media containing factorial combinations of plant growth regulators. Callus induction from hypocotyl, cotyledon, petiole and leaf explants was achieved on media containing 2,4-dichlorophenoxy acetic acid (2,4-D) and kinetin (KIN). All other growth regulator combinations [□-naphtaleneacetic acid (NAA) ± benzylaminopurine (BAP), NAA ± thidiazuron (TDZ), indol acetic acid (IAA) ± Zeatin (ZEA)] tested failed to respond. The best results with cotyledon- and petiole- derived callus were obtained from MS medium supplemented with 1.0 mg l⁻¹ 2,4-D + 0.1 mg l⁻¹ KIN and 2.0 mg l⁻¹ 2,4-D + 0.2 mg l⁻¹ KIN. It was observed that B5 basal medium was more effective than MS basal medium for producing seedling and the most effective seed sterilizing solution was 25 % (v/v) sodium hypochlorite (NaOCl). No plant regeneration was observed in either callus induction or during the subculturing stage. This is the first report on in vitro tissue culture study within the genus Epilobium.
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