Studies on Growth and Carbofuran Degredation Potential of Bacterial Isolates

Studies were conducted at Agricultural College and Research Institute, Tamil Nadu Agricultural University, Coimbatore to examine the growth and carbofuran degradation potential of bacterial isolates viz., CF-1, CF-2, CF-3, CF-4 and CF-7. Among them CF-7 recorded highly significant growth in carbofuran amended Mineral Salt Medium exhibiting an optical density of 0.557 at 600 nm after 48 h of incubation, which was followed by CF-1 (0.395), CF-4 (0.252), CF-3 (0.210) and CF-2 (0.197). In the recovery study, mean recoveries of carbofuran in MSM were 81.25, 87.36 and 83.96 per cent, respectively for the three fortification levels viz., 0.25, 0.5 and 1 ppm. The highest reduction in carbofuran concentration was recorded in MSM inoculated with CF-7 (reduced to 17.71 % as compared to 50.25 % in the control).