Study of the effectiveness of preservatives and sodium hypochlorite for eradiation of microorganism in plant tissue culture medium for Bucephalandra aquatic plant
Abstract:
Plant propagation via tissue culture techniques requires a high investment due to the expensive equipment especially autoclave. Consequently, the objective of this study was to examine the effectiveness of preservative and sodium hypochlorite in sterilizing plant tissue culture media to lower the cost of culturing. Using 0.25 to 1.25% (v/v) preservative and final concentration of 0.10-0.50% (v/v) of sodium hypochlorite of commercial product were trialed. These media were not autoclaved and then used for culturing the sterile Buceparandra. It was found that in media containing preservative and sodium hypochlorite were able to increase the number of shoots at all concentrations and there was no statistical difference. The average number of shoots was 6.0±0.70-6.8±0.70 but there was a statistical difference from the autoclaved media which yielded 4.0±0.07-4.2±0.44 shoots. The media containing 0.25-0.75% of preservative were found to be contaminated with microorganisms while all concentrations of sodium hypochlorite-containing medium were not contaminated by microorganisms. Confirmation of the antiseptic efficiency of preservative and sodium hypochlorite in the preparation of Buceparandra tissue culture media was done by evaluating media without microbiological contamination on Luria-Bertani (LB) solid medium. It was discovered that preservative-treated tissue culture medium enhanced bacteria growth. While tissue culture medium prepared with sodium hypochlorite did not support the growth of germ-free cells, Therefore, it may be concluded that preservatives prevent the growth of bacteria, whereas sodium hypochlorite can eliminate microorganisms.