This study was performed to isolate actinomycete colonies having antibacterial activity from soil samples collected from different\nplaces around Rajshahi, Bangladesh. Thirty actinomycete colonies were isolated in pure culture fromfive soil samples using Starchcasein-\nnitrate-agar medium. The isolates were grouped in five color series based on their aerialmycelia color and screened for their\nantibacterial activity against a range of test bacteria. Sixteen isolates (53.3%) were found to have moderate to high activity against\nfour gram-positive and four gram-negative bacteria. Since many isolates showed inhibitory activity against indicator bacteria, it is\nsuggestive that Bangladeshi soil could be an interesting source to explore for antibacterial secondary metabolites.
Loading....