Diversity and Antimicrobial Potential of Culturable Actinobacteria from Desert Soils of Saudi Arabia
نویسندگان
چکیده
The present investigation Saudi Arabian desert actinobacteria have been studied for discovery of novel actinobacteria and also useful new sources for bioactive metabolites. Soil samples were collected from 10 different places in Riyadh province of Saudi Arabia. The maximum actinobacterial count 21.8x10 was recorded in Hazlullah soil sample and minimum 1.6x10 was recorded in Al-Kharj soil samples. Totally 134 morphologically distinguished culturable actinobacteria were isolated from 10 soil samples and screened their antimicrobial potential. Altogether 134 isolates, 16 actinobacterial isolates only exhibited the antimicrobial activity. However, 6 isolates were potential against Gram-positive, 5 were potential against Gram-negative and 14 were potential against yeast like pathogenic fungi. Nevertheless, only three isolates namely DA3-7, DA3-12 and DA7-2 showed broad spectrum antimicrobial activity.
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