Molecular Characterization and Antimicrobial Efficacy of Streptomyces gancidicus Strain SN-3 from Soil Samples

摘要

The present work was carried out for four Actinomycetes SN-1, SN-2, SN-3 and SN-4 isolated from soil samples of agricultural fields near University of Agricultural Sciences, Dharwad, Karnataka. Isolates were subjected for the screening of antimicrobial analysis by the cross streak method. Among four isolates the strain SN-3 has shown good antimicrobial activity. Morphological characterization by scanning electron microscopic analysis followed by physiological and biochemical characterizations were performed. The potent strain was identified by the 16S rRNA gene sequence (987 bp) and a phylogenetic tree was correlated with other species Streptomyces spp and finally, the strain was confirmed and identified as Streptomyces gancidicus SN-3.