Ten isolates of Enterococcus faecalis were tested for antimicrobial activity against closely related and less closely related pathogenic gram-positive and gram-negative indicator strains. Using the agar spot test Enterococcus faecalis MI2, MI6, MI126 and MI128 showed strong activity against selected enterococcal isolates. E. faecalis MI6 and MI128 showed strong antimicrobial activity against Listeria innocua NCTC. 11288 but enterococcal isolates did not show activity against selected pathogenic strains of some other species. A clear inhibition zone around the spotted test culture observed antimicrobial activity of E. faecalis isolates. The diameters of zones of inhibition ranged from 2-8 mm.
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Mushtaq Ahmad, David G. Samith and S. Mahboob, 2002. Antimicrobial Activity of Enterococcus faecalis Against Selected Isolates and Some Pathogenic Microorganisms. Journal of Biological Sciences, 2: 343-345.
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