Differential Resistance of Soil Borne Microbes to Commonly Used Antibiotics (original) (raw)

Three antibiotic resistance bacteria were isolated from Belur Sramajibi Hospital, Howrah district, on the outskirts of Kolkata. The microscopic, biochemical and pathogenicity tests suggested them to be Pseudomonas sp (isolate 1), Salmonella sp (isolate 2) and Enterococcus sp (isolate 3). The major aim was to check the effect of several aqueous plant extract on these multiple drug resistant strains and also study the change in antibiotic susceptibility pattern of the isolates, after UV irradiation using disc diffusion method. It was found that clove, neem and tulsi were the most effective agents in inhibiting growth of these pathogens. UV exposure (180-200 nm) of 10-20 minutes changed the susceptibility pattern of isolate 3 from resistance to sensitive towards all common and a few advance antibiotics (Ciprofloxacin and Imipenem).