Sirikonda Abhiteja, Jogam Phanikanth, Ellendula Raghu, Kudikala Hemalatha, Mood Kasim, Allini Venkateswar Rao
Keywords: Flemingia macrophylla , Micro-propagation, ISSR, RAPD
Flemingia macrophylla is an important ethnomedicinal plant of Fabaceae, with immense pharmaceutical properties. Now, it is becoming rare because of its poor seed dispersal mechanism and over-exploitation of the material. In this study we have successfully established an in vitro micro-propagation protocol employing explants like ex vivo leaf and cotyledonary node. Both the explants were cultured on MS medium supplemented with various combinations and concentrations of growth hormones. In vitro morphogenetic response of leaf explants are very poor when compared with cotyledonary nodes. Cotyledonary nodes cultured on MS medium supplemented with BAP (2.0 mg/l) in combination with IAA (0.2 mg/l) produced a high percentage of multiple shoots (13.76 ± 1.1). Elongated shoots (6.30 ± 0.01 cm) rooted on MS medium with IBA (0.8 mg/l) produced a high frequency of rooting (10.80 ± 1.23) with excellent root length (10.56 ± 1.70 cm). Plantlets with a fully developed root system were acclimatized using soil: manure (1:1) and shifted to the greenhouse. Investigations for the corroboration of genetic stability among the clones and mother plants were carried out by using ISSR and RAPD markers and the results were in clear evidence that all the plants are true-to-type. This scientific approach for in vitro propagation and conservation is prerequisite for better sustainability of the plant.
Department of Biotechnology, Kakatiya University, Warangal, India