Fig. 2From: Alkaloid extracts from Combretum zeyheri inhibit the growth of Mycobacterium smegmatis The effects of rifampicin (positive control) on the growth of mycobacterium in broth. M. smegmatis were grown and exposed to increasing concentrations of rifampicin in a 96-well microplate. Values are the mean of ± SD for n = 4 for duplicate measurements *P < 0.05 ** P < 0.01, *** P < 0.001 in comparison with the cells exposed to the zero concentration of extractBack to article page