Author(s)

Chandra Sekhar Panathula, Manikyam Doraiswamy Naidu Mahadev, Challagundla Varadarajulu Naidu

Department of Biotechnology, Dravidian University, Kuppam, India.

Antimicrobial agents such as bavistin, cefotaxime and kanamycin were evaluated for their effects on the rapid shoot regeneration from nodal explants of Centella asiatica (L.). Filter sterilized bavistin (250 mg/L) was augmented alone and in combination with cytokinins such as BAP and TDZ into the media to trace the effect on regeneration. On this basis, the potential use of bavistin (150 mg/L) along with BAP (2.0 mg/L) was evaluated which showed the maximum shoot number (6.6) and shoot length (4.4 cm) respectively. Cefotaxime at the concentration of 100 μM/L was found to be effective to obtain the maximum shoot number formation (5.8) with the regeneration frequency (90%). Kanamycin at the concentration of 80 μM/L induced maximum shoot regeneration (5.12). Kanamycin at 100 μM/L or at higher concentrations reduced the shoot regeneration. The best rooting response was noticed when in vitro regenerated microshoots were transferred to the rooting medim which was supplemented with IBA (2.0 mg/L). This combination generates 90% of regeneration frequency and maximum number of roots per shoot (14.2) and high root length (4.2 cm). The rooted plants were acclimatized and transferred to field for survivalance. The addition of antibiotics was found to be more effective and safer for using since their effects on regeneration were found to be negligible.

Centella asiatica (L.); Bavistin; Cefotaxime; Kanamycin; 6-Benzyl Amino Purine; In Vitro Regeneration

C. Panathula, M. Mahadev and C. Naidu, "The Stimulatory Effects of the Antimicrobial Agents Bavistin, Cefotaxime and Kanamycin on In Vitro Plant Regeneration of Centella asiatica (L.)—An Important Antijaundice Medicinal Plant," American Journal of Plant Sciences, Vol. 5 No. 3, 2014, pp. 279-285. doi: 10.4236/ajps.2014.53038.